What are Circuit Protection ?
Circuit Protection refers to components designed to prevent damage to electrical circuits from overcurrent, voltage spikes, and other electrical anomalies. They are commonly used in applications such as production electronics assembly and maintenance. Important specifications include voltage rating, current rating, and response time; these attributes are critical for ensuring compatibility with existing designs and maintaining system performance. Additionally, validating lifecycle status is essential for procurement teams to ensure reliable sourcing.
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| Part & Mfr | Total Stock | Pricing & RFQ | |
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Diodes Incorporated
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61,020
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Price on request
61,020
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STMicroelectronics
<p>The ESDALC12-1T2 is a unidirectional TVS (transient voltage suppression) diode designed for general purpose ESD protection. It features a reverse standoff voltage of 10V and a maximum clamping voltage of 20V at a peak pulse current of 1A (8/20µs). The device can handle 50W of peak pulse power, making it suitable for protecting sensitive electronics from voltage transients.</p><p> </p><p>This diode offers a typical capacitance of 15pF at 1MHz, which helps maintain signal integrity in high-speed data lines. It is not intended for power line protection, as indicated by the absence of power line protection capability.</p><p> </p><p>The ESDALC12-1T2 is housed in a compact SOD-882 surface mount package, enabling space-efficient designs. It operates over a junction temperature range of -40°C to 125°C, ensuring reliable performance in various environmental conditions.</p>
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61,020
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Price on request
61,020
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Nexperia USA Inc.
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61,020
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Price on request
61,020
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Vishay Dale
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61,000
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Price on request
61,000
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On Semiconductor
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60,760
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Price on request
60,760
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STMicroelectronics
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60,656
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Price on request
60,656
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On Semiconductor
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60,646
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Price on request
60,646
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On Semiconductor
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60,367
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Price on request
60,367
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Bourns
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60,267
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Price on request
60,267
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Analog Devices / Maxim Integrated
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60,267
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Price on request
60,267
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Littelfuse Inc.
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60,200
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Price on request
60,200
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STMicroelectronics
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60,189
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Price on request
60,189
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Littelfuse Inc.
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60,160
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Price on request
60,160
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On Semiconductor
<p>The ESD8018MUTAG is a low capacitance ESD protection diode array from On Semiconductor, specifically designed to protect four high speed data lines from ESD and surge events. It offers ultra-low capacitance of 0.32 pF maximum (I/O to GND), making it ideal for voltage-sensitive high speed interfaces such as V-by-One HS, LVDS, USB 3.1 Type C, and 10 GbE.</p><p> </p><p>The device provides IEC 61000-4-2 ESD protection at ±17 kV contact and air, and IEC 61000-4-5 lightning surge protection up to 5 A (8/20 µs). The flow-through package design (UDFN10) simplifies PCB layout and maintains consistent impedance for differential pairs. The ESD8018MUTAG is RoHS3 compliant, Pb-Free, and Halogen Free/BFR Free. It is supplied in tape and reel packaging with a standard quantity of 3000 units per reel. Operating junction temperature range is -55 to 125 °C, with storage temperature range of -55 to 150 °C.</p>
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60,000
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Price on request
60,000
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STMicroelectronics
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60,000
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Price on request
60,000
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STMicroelectronics
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60,000
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Price on request
60,000
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Toshiba
<p>The Toshiba DF2B6M4ASL is a TVS diode (ESD protection diode) designed to protect semiconductor devices used in mobile device interfaces and other applications against static electricity and noise. It utilizes snapback characteristics to provide low dynamic resistance and superior protective performance.</p><p> </p><p>Key electrical specifications include a reverse standoff voltage (VRWM) of 5.5 V maximum, a typical clamping voltage of 10 V at 2 A, and a high ESD withstand voltage of ±15 kV (contact and air) per IEC 61000-4-2. The device features a low typical dynamic resistance of 0.7 Ω and an ultra-low typical capacitance of 0.15 pF at 1 MHz, making it suitable for high-speed signal lines.</p><p> </p><p>The DF2B6M4ASL is housed in an ultra-compact 2-SMD, no lead package (SL2) measuring 0.62 mm × 0.32 mm, suitable for high-density board layouts in mobile equipment, smartphones, tablets, and notebook PCs.</p>
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60,000
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Price on request
60,000
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STMicroelectronics
<p>The ESDA25-4BP6 is a transient voltage suppression (TVS) diode from STMicroelectronics designed to protect sensitive electronic circuits from electrostatic discharge (ESD) and other voltage transients. It features a reverse standoff voltage of 24V and a peak pulse power rating of 50W. The device integrates four bidirectional Zener channels, making it suitable for protecting multiple signal lines in space-constrained applications. The ESDA25-4BP6 is housed in a compact surface-mount SOT-666 package and operates over a junction temperature range of -40°C to 150°C. It is intended for general purpose ESD protection in consumer, industrial, and automotive electronics where reliable overvoltage clamping is required. The device is RoHS3 compliant and has a moisture sensitivity level of 1 (unlimited). With its low-profile package and multi-channel design, the ESDA25-4BP6 offers a cost-effective solution for board-level transient protection.</p>
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60,000
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Price on request
60,000
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STMicroelectronics
<p>The ESDALC6V1P5 is a Zener-type TVS diode array from STMicroelectronics designed for general-purpose ESD protection. It features a maximum reverse standoff voltage of 3V and a peak pulse power rating of 30W. The device integrates four unidirectional channels in a single SOT-665 package, making it suitable for protecting multiple signal lines in compact designs.</p><p> </p><p>This TVS diode is surface-mount capable and operates over a wide temperature range of -40°C to 150°C. It does not include power line protection, indicating it is intended for signal line applications. The SOT-665 package offers a small footprint for space-constrained PCB layouts.</p><p> </p><p>The ESDALC6V1P5 is RoHS3 compliant and has an MSL rating of 1 (unlimited), simplifying handling and assembly. It is a general-purpose component suitable for a variety of electronic devices requiring ESD protection.</p>
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60,000
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Price on request
60,000
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STMicroelectronics
<p>The ESDALC5-1BT2 is a bidirectional TVS diode from STMicroelectronics designed for general-purpose ESD protection. It features a reverse stand-off voltage of 5V and a peak pulse power rating of 150W, making it suitable for protecting low-voltage circuits from electrostatic discharge transients.</p><p> </p><p>The diode offers a low capacitance of 26pF at 1MHz, which minimizes signal distortion on high-speed data lines. It operates over a temperature range of -55°C to 150°C, ensuring reliability in diverse environments. The Zener technology provides sharp breakdown characteristics for consistent clamping performance.</p><p> </p><p>Packaged in a compact SOD-882T surface mount package, the ESDALC5-1BT2 is ideal for space-constrained designs. The single bidirectional channel simplifies PCB layout by eliminating orientation concerns. The device is RoHS3 and REACH compliant, with an MSL rating of Level 1 for unlimited floor life.</p>
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60,000
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Price on request
60,000
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Semtech
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60,000
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Price on request
60,000
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Vishay Dale
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60,000
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Price on request
60,000
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STMicroelectronics
<p>The ESDA25LY is a bidirectional TVS diode from STMicroelectronics, designed to protect sensitive electronics from transient voltage surges. It features a reverse standoff voltage of 24V, with a maximum clamping voltage of 43V at a peak pulse current of 7A (8/20µs waveform). The device is rated for a peak pulse power of 300W under the same waveform.</p><p> </p><p>This TVS diode utilizes Zener technology and offers two unidirectional channels, making it suitable for protecting multiple signal or power lines. It is designed for surface mount assembly in a compact SOT-23-3 package, also available as TO-236-3 or SC-59. The operating temperature range spans -40°C to 150°C, allowing use in harsh environments.</p><p> </p><p>Applications include automotive electronics, where transient protection is critical. The device is not intended for power line protection but is ideal for low-power signal and data lines. It is compliant with RoHS3 and REACH unaffected, with an MSL rating of 1 (unlimited).</p>
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60,000
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Price on request
60,000
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Littelfuse Inc.
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60,000
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Price on request
60,000
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Littelfuse Inc.
<p>The Littelfuse 2016L100PR is a PolySwitch PTC resettable fuse from the 2016L series. It provides overcurrent protection in low voltage applications up to 15V. The device has a hold current of 1.1 A and a trip current of 2.2 A, with a maximum fault current handling capability of 40 A. The typical trip time is 500 ms at 8 A. The initial resistance is 0.1 Ω minimum, and the post-trip resistance is 0.4 Ω maximum. Power dissipation in the tripped state is 1.4 W. The operating temperature range is -40°C to 85°C. The device is surface mountable and comes in a 2016 (5041 Metric) concave package with dimensions 5.08 mm x 4.07 mm x 0.75 mm. It is RoHS, lead-free, and halogen-free compliant. This resettable fuse is suitable for overcurrent protection in various electronic circuits where resettable protection is desired.</p>
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60,000
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Price on request
60,000
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Kyocera AVX
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60,000
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Price on request
60,000
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Littelfuse Inc.
<p>The AQHV12-01LTG-C is a bidirectional Zener TVS diode from Littelfuse designed for overvoltage protection. It features a reverse standoff voltage of 12V and a maximum clamping voltage of 30V at a peak pulse current of 10A (8/20µs waveform). The device can handle 300W of peak pulse power under a 10/1000µs waveform. It is not intended for power line protection.</p><p> </p><p>Typical applications include automotive electronics and CAN bus interfaces, where robust transient protection is required. The diode is surface mountable and comes in a compact SOD-523 package (also referenced as SC-79). It operates over a temperature range of -40°C to 150°C, making it suitable for harsh environments.</p>
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60,000
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Price on request
60,000
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Bel Fuse
<p>The 5SF 10-R is a quick-acting, glass tube cartridge fuse from Bel Fuse’s Type 5SF/5SFP series. Designed in accordance with IEC 60127-2, sheet 2, it offers a low breaking capacity of 100A at 250VAC. The fuse is rated for 10A and 250VAC with a fast blow response time and a melting I²t of 163 A²s.</p><p> </p><p>Constructed with a glass body, nickel plated brass caps, and matte tin plated copper leads, the 5SF 10-R requires a holder for mounting. It operates over a wide temperature range of -55°C to 125°C. The fuse is approved by CE, CSA, and cURus, and is compliant with RoHS, halogen-free, and lead-free directives.</p><p> </p><p>Typical applications include power supplies, battery chargers, and monitor adapters. Note that this part is end-of-life with a last buy date of September 30, 2024; the recommended replacement series is the 0651C/0651P.</p>
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60,000
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Price on request
60,000
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STMicroelectronics
<p>The ESDZV18-1BF4 is a bidirectional Zener TVS diode from STMicroelectronics. It features a clamping voltage of 21.5V and a single bidirectional channel. The device offers a low capacitance of 3pF at 1MHz, making it suitable for high-speed signal line protection. It is not designed for power line protection.</p><p> </p><p>The diode is housed in a compact 0201 (0603 metric) surface mount package with supplier device package ST0201. It is RoHS3 compliant, has an MSL of 1 (unlimited), and is REACH unaffected. This component is intended for general purpose ESD protection applications where space is limited.</p>
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60,000
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Price on request
60,000
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Bel Fuse
<p>The Bel Fuse 0678H9400-02 is a surface mount brick fuse from the 0678H series, designed for high-current circuit protection. It is rated for 40A at 250V AC and offers enhanced breaking capacity of 100A AC and 1kA DC.</p><p> </p><p>This fuse is housed in a compact 3912 (2-SMD, square end block) package measuring 9.80mm x 3.05mm x 3.05mm, making it suitable for space-constrained designs. It operates over a wide temperature range of -55°C to 125°C and is compatible with lead-free soldering processes.</p><p> </p><p>The 0678H9400-02 is AEC-Q200 qualified for automotive applications and is RoHS3 compliant with exemption 7(a). It is also halogen-free and has an MSL rating of Level 1 (unlimited).</p>
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60,000
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Price on request
60,000
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STMicroelectronics
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60,000
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Price on request
60,000
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Diodes Incorporated
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60,000
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Price on request
60,000
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Diodes Incorporated
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59,982
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Price on request
59,982
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Semtech
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59,893
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Price on request
59,893
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Littelfuse Inc.
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59,450
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Price on request
59,450
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Diodes Incorporated
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59,234
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Price on request
59,234
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Littelfuse Inc.
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58,911
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Price on request
58,911
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On Semiconductor
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58,666
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Price on request
58,666
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Texas Instruments
<p>The Texas Instruments ESD204DQAR is a Zener-type TVS diode array designed for general-purpose ESD protection. It integrates four bidirectional clamping channels with a typical clamping voltage of 11.5V and can handle peak pulse currents up to 5.5A (8/20µs waveform). The device offers a peak pulse power dissipation of 50W.</p><p> </p><p>With an ultra-low typical capacitance of 0.65pF at 1MHz, this array is suitable for high-speed signal lines where signal integrity is critical. The operating temperature range spans -40°C to 125°C, allowing use in industrial and automotive environments.</p><p> </p><p>Housed in a compact 10-UFDFN package (supplier device package: 10-USON, 2.5x1mm), the ESD204DQAR supports surface-mount assembly, making it ideal for space-constrained PCB layouts. It is not designed for power line protection and is intended for signal line ESD protection applications.</p>
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58,654
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Price on request
58,654
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Vishay Dale
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58,620
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Price on request
58,620
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Vishay Dale
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58,600
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Price on request
58,600
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Littelfuse Inc.
<p>The Littelfuse 046701.5NR is a 1.5A, fast-acting board mount fuse designed for secondary circuit protection in space-constrained applications. It is rated for 32VAC and 65VDC operation. The fuse features a fast blow response time and complies with RoHS and halogen-free requirements.</p><p> </p><p>Electrical characteristics include a nominal cold resistance of 0.0385 Ω, a nominal voltage drop of 71.6 mV, and a nominal power dissipation of 0.1074 W. The melting I²t is 0.0766 A²s. The breaking capacity is 35A at rated AC voltage and 13A at rated DC voltage.</p><p> </p><p>The component is housed in an ultra-small 0603 (1608 metric) surface mount package with dimensions of 1.60 mm length, 0.81 mm width, and 0.31 mm height. It operates over a temperature range of -55°C to 90°C. This fuse is suitable for use in battery packs, cell phones, digital cameras, and other handheld portable devices.</p>
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58,547
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Price on request
58,547
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Bourns
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58,392
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Price on request
58,392
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STMicroelectronics
<p>The 1.5KE18A is a unidirectional Zener TVS diode designed for general purpose transient voltage suppression. It has a reverse standoff voltage of 15.3V and a clamping voltage of 32.5V at a peak pulse current of 308A (8/20µs waveform). The device can handle 1500W of peak pulse power. It features a single unidirectional channel and does not include power line protection.</p><p> </p><p>The diode has a capacitance of 4300pF at 1MHz, which should be considered when protecting high-speed signal lines. It is mounted using through-hole technology and is available in DO-201AA, DO-27, and Axial packages. The supplier device package is DO-201.</p><p> </p><p>This TVS diode is suitable for general purpose applications requiring reliable overvoltage protection in through-hole PCB designs.</p>
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58,121
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Price on request
58,121
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Diodes Incorporated
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58,020
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Price on request
58,020
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STMicroelectronics
<p>The ESDA19SC6 is a Zener-type transient voltage suppression (TVS) diode array designed for general purpose circuit protection. It features a reverse standoff voltage of 15V typical and a peak pulse power rating of 300W. The device integrates four unidirectional channels in a single SOT-23-6 surface mount package, making it suitable for protecting multiple signal lines in compact designs.</p><p> </p><p>This TVS diode array does not include power line protection and is intended for use in applications where fast transient suppression is required. The operating temperature range spans from -40°C to 125°C, allowing reliable performance in a wide variety of environments. The SOT-23-6 package is widely used and supports automated assembly processes.</p><p> </p><p>With its 15V standoff voltage and 300W peak pulse capability, the ESDA19SC6 is appropriate for clamping voltage transients on data lines and I/O ports in consumer, industrial, and telecommunications equipment. The device is RoHS3 compliant and REACH unaffected, with an MSL rating of 1 (unlimited).</p>
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58,020
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Price on request
58,020
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On Semiconductor
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58,016
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Price on request
58,016
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Vishay Dale
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57,750
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Price on request
57,750
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STMicroelectronics
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57,500
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Price on request
57,500
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STMicroelectronics
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57,500
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Price on request
57,500
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Showing 1101-1150 of 302,022 products