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 | |
|---|---|---|---|
Littelfuse Inc.
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108,719
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Price on request
108,719
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Bel Fuse
<p>The Bel Fuse 0ZCJ0035FF2G is a surface mount polymeric PTC resettable fuse from the 0ZCJ series. It features a hold current of 350 mA and a trip current of 750 mA at 23°C. The device is rated for a maximum voltage of 16V and can withstand a maximum fault current of 40A.</p><p> </p><p>This PTC fuse has a typical power dissipation of 0.4W. It offers fast fault protection with a maximum time to trip of 100 ms at 750 mA. The minimum resistance is 0.3 Ω, and the maximum resistance in the tripped state (R1max) is 1.2 Ω.</p><p> </p><p>The component is housed in a compact 1206 (3216 metric) concave package, measuring 3.25mm by 1.65mm by 0.75mm. It is lead-free, halogen-free, and RoHS compliant. The device is AEC-Q compliant, suitable for automotive applications.</p>
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108,000
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Price on request
108,000
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On Semiconductor
<p>The ESD1L001W1T2G from On Semiconductor is a low capacitance ESD protection diode designed to protect four high-speed data lines from electrostatic discharge. It meets IEC 61000-4-2 Level 4 requirements, with contact discharge capability of ±8 kV and air discharge of ±15 kV.</p><p> </p><p>Key electrical characteristics include a reverse working voltage of 5 V, typical breakdown voltage of 16.5 V at 1 mA, and low clamping voltage of 30 V typical at 16 A TLP. The ultra-low junction capacitance of 0.3 pF (typical, I/O to GND) ensures signal integrity for high-speed interfaces.</p><p> </p><p>The device is offered in a space-saving SC-88/SC-70-6 surface mount package, suitable for automated assembly. Operating temperature range is -55°C to +125°C. The component is RoHS compliant and lead-free (Pb-Free). Typical applications include USB 2.0/3.0, HDMI, LVDS, and other high-speed differential pairs.</p>
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108,000
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Price on request
108,000
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Vishay Dale
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106,400
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Price on request
106,400
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Nexperia USA Inc.
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106,383
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Price on request
106,383
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On Semiconductor
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106,228
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Price on request
106,228
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Nexperia USA Inc.
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106,020
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Price on request
106,020
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Diodes Incorporated
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106,020
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Price on request
106,020
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Semtech
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105,824
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Price on request
105,824
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On Semiconductor
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105,680
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Price on request
105,680
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On Semiconductor
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105,000
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Price on request
105,000
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Littelfuse Inc.
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105,000
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Price on request
105,000
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Bel Fuse
<p>The Bel Fuse C1Q 1 is a 1A, fast-acting surface mount chip fuse designed for overcurrent protection in a wide range of electronic applications. Housed in a compact 1206 (3216 Metric) package, this fuse is rated for 125VAC and 63VDC operation. It offers a high breaking capacity of 100A at 125VAC and 50A at 63VDC, ensuring reliable fault clearing.</p><p> </p><p>This fuse features a fast blow response time, making it suitable for protecting sensitive circuits where rapid interruption of overcurrents is required. Key electrical characteristics include a nominal cold resistance of 0.124 Ω, a voltage drop of 0.156V at rated current, and a power dissipation of 0.16W. The device operates over a wide temperature range of -55°C to 125°C.</p><p> </p><p>The C1Q 1 is designed for surface mount assembly and is compatible with lead-free reflow soldering processes. It is compliant with RoHS, REACH, and is halogen-free and lead-free. The fuse also meets AEC-Q200 qualification standards, making it suitable for automotive applications. Typical applications include notebook computers, LCD monitors, power supplies, DC-DC converters, and industrial equipment.</p>
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104,761
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Price on request
104,761
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Nexperia USA Inc.
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104,441
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Price on request
104,441
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Bel Fuse
<p>The Bel Fuse 0ZCG0030FF2C is a polymeric PTC resettable fuse from the 0ZCG series, designed for overcurrent protection in electronic circuits. It features a hold current of 0.3 A and a trip current of 0.6 A, with a rated voltage of 30 V and a maximum current capability of 40 A.</p><p> </p><p>The device has a typical power dissipation of 0.8 W and a maximum time to trip of 100 ms at 8 A, providing fast response to overcurrent events. Initial resistance (Rmin) is 0.100 Ω and maximum post-trip resistance (R1max) is 0.200 Ω, ensuring low power loss during normal operation.</p><p> </p><p>Packaged in a 1812 (4532 Metric) concave configuration, this component is designed for surface mount assembly. It operates over a temperature range of -40°C to 85°C and carries an AEC-Q200 rating, making it suitable for automotive applications. The part is RoHS, REACH, lead-free, and halogen-free compliant.</p>
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104,094
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Price on request
104,094
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Diodes Incorporated
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103,831
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Price on request
103,831
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Semtech
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103,819
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Price on request
103,819
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Kyocera AVX
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103,714
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Price on request
103,714
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Vishay Dale
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103,635
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Price on request
103,635
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Vishay Dale
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103,620
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Price on request
103,620
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Vishay Dale
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103,163
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Price on request
103,163
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STMicroelectronics
<p>The ESDA25SC6 is a 24V unidirectional Zener TVS diode manufactured by STMicroelectronics. It is designed for general purpose transient voltage suppression, protecting sensitive electronic circuits from electrostatic discharge (ESD) and other voltage transients. With a reverse standoff voltage of 24V and a peak pulse power rating of 300W, this device provides robust protection in a compact SOT-23-6 package.</p><p> </p><p>This TVS diode features four unidirectional channels, making it suitable for protecting multiple lines in a single package. It operates over a wide temperature range of -40°C to 125°C, ensuring reliability in harsh environments. The surface mount package (SOT-23-6) facilitates automated assembly and space-saving PCB designs.</p><p> </p><p>The device is RoHS3 compliant and has an MSL of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and soldering.</p>
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103,000
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Price on request
103,000
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STMicroelectronics
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102,574
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Price on request
102,574
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Texas Instruments
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102,549
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Price on request
102,549
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Diodes Incorporated
<p>The DESD2CAN2SOQ-7 is a next generation ESD and surge protection device from Diodes Incorporated, packaged in a small footprint SOT-23 surface mount package. It is qualified to AEC-Q101 and designed to protect two data lines of the Controller Area Network (CAN) in automotive applications.</p><p> </p><p>Key electrical specifications include a reverse standoff voltage of 24V, a maximum clamping voltage of 41V, and a minimum breakdown voltage of 25.4V. The device can handle peak pulse currents up to 5A under an 8/20µs waveform, with a peak pulse power dissipation of 230W per line. Low channel input capacitance of 25pF (typical at 1MHz) minimizes signal degradation on high-speed CAN buses.</p><p> </p><p>The DESD2CAN2SOQ-7 provides ESD protection per IEC 61000-4-2 with air discharge rating of ±30kV and contact discharge rating of ±30kV. It is available in a SOT-23-3 package (also known as TO-236, SC-59) with matte tin termination finish. The device is compliant with RoHS3, REACH unaffected, halogen and antimony free, and has an MSL rating of Level 1. It is packaged in tape and reel with 3000 units per reel, on 7-inch reels with 8mm tape width.</p>
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102,506
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Price on request
102,506
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STMicroelectronics
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102,500
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Price on request
102,500
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Vishay Dale
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102,220
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Price on request
102,220
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Bel Fuse
<p>The Bel Fuse 0ZCG0075FF2C is a surface-mount polymeric PTC resettable fuse from the 0ZCG series. It offers a hold current of 750 mA and a trip current of 1.5 A at a rated voltage of 16V DC. The device can withstand a maximum fault current of 100 A and has a typical power dissipation of 0.8 W.</p><p> </p><p>This PTC fuse features a fast time to trip of 200 ms at 8 A and 23°C. Initial resistance is 200 mΩ minimum, and post-trip resistance is 450 mΩ maximum. It is packaged in a 1812 (4532 Metric) concave case and is designed for surface mount assembly.</p><p> </p><p>The component is RoHS3 compliant, lead-free, and halogen-free. It is AEC-Q200 qualified, making it suitable for automotive applications. Operating temperature range is -40°C to 85°C.</p>
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102,000
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Price on request
102,000
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NXP Semiconductors
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102,000
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Price on request
102,000
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STMicroelectronics
<p>The ESDA25W is a Zener type transient voltage suppression (TVS) diode designed for general purpose circuit protection. It offers a reverse standoff voltage of 24V and a peak pulse power rating of 400W. This device features two unidirectional channels in a single SOT-323 surface mount package, making it suitable for compact PCB layouts. The operating temperature range is -40°C to 125°C, ensuring reliability in various environments. The ESDA25W is RoHS3 compliant and has an MSL level of 1, indicating unlimited floor life. It is manufactured by STMicroelectronics.</p>
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102,000
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Price on request
102,000
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Infineon Technologies
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102,000
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Price on request
102,000
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Bourns
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101,939
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Price on request
101,939
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STMicroelectronics
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101,619
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Price on request
101,619
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Littelfuse Inc.
<p>The Littelfuse 0287015.PXCN is an ATOF series automotive blade fuse designed for low-voltage circuit protection in vehicles. It is rated at 15A with a maximum voltage of 32V DC and can interrupt currents up to 1000A at rated voltage. The fuse has a melting I²t of 340 A²s and a typical voltage drop of 102 mV at rated current.</p><p> </p><p>The operating temperature range is -40°C to +125°C, making it suitable for harsh automotive environments. The housing is made of PA66 with UL 94 V-2 flammability rating, and the terminals are tin-plated for reliable electrical contact. The fuse body is blue in color and measures 19.10 mm x 5.10 mm x 12.30 mm, weighing 1.4 g.</p><p> </p><p>Mounting requires a compatible holder. The fuse complies with SAE J1284 and ISO 8820-3 standards, and is UL listed (File AU1410) and CSA certified (File 29862). It is available in a blade package type ATO/ATC, and typical applications include cars, SUVs, trucks, off-road vehicles, and watercraft.</p>
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101,501
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Price on request
101,501
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Diodes Incorporated
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101,020
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Price on request
101,020
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Vishay Dale
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100,770
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Price on request
100,770
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Littelfuse Inc.
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100,396
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Price on request
100,396
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Texas Instruments
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100,167
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Price on request
100,167
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Diodes Incorporated
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100,082
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Price on request
100,082
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Diodes Incorporated
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100,049
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Price on request
100,049
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Diodes Incorporated
<p>The D1213A-04V-7 is a 4-channel steering (rail-to-rail) TVS diode array from Diodes Incorporated, designed to protect sensitive electronic circuits from electrostatic discharge (ESD) and other transient voltage events. It provides unidirectional ESD protection for four independent channels with a low typical capacitance of 0.85 pF, making it suitable for high-speed data interfaces such as USB 2.0, IEEE 1394, Serial ATA, DVI, and HDMI. The device features a reverse standoff voltage of 3.3 V and a typical clamping voltage of 10 V. It offers robust ESD protection per IEC 61000-4-2 with ±15 kV air discharge and ±8 kV contact discharge ratings. The breakdown voltage is guaranteed at a minimum of 6 V (at 1 mA). The peak pulse current is rated at 5 A (8/20 µs) with a maximum power dissipation of 380 mW. Operating supply voltage range is 3.3 V to 5.5 V with a low quiescent supply current of 8 µA maximum. The device is housed in a surface-mount SOT-563 package with matte tin plated terminals and is rated for operating junction temperatures from -55°C to 150°C. It is qualified to AEC-Q101 standards, RoHS3 compliant, halogen and antimony free, and has a moisture sensitivity level of 1 per J-STD-020. Packaging is tape and reel with 3000 units per reel.</p>
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100,020
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Price on request
100,020
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Bourns
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100,000
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Price on request
100,000
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Littelfuse Inc.
<p>The Littelfuse 0218.200MXP is a 5x20mm time-lag glass cartridge fuse designed to IEC 60127-2, Sheet 3 specifications. It provides supplementary overcurrent protection in appliance and equipment circuits.</p><p> </p><p>Rated at 200mA and 250VAC, this fuse offers a 35A breaking capacity and a slow-blow response characteristic that tolerates short-duration inrush currents. Electrical characteristics include a nominal cold resistance of 1.6Ω, melting I²t of 0.341 A²s, maximum voltage drop of 1300mV at rated current, and maximum power dissipation of 1.6W at 1.5In.</p><p> </p><p>The 5x20mm glass cartridge package is available in axial lead form and requires a compatible fuse holder. It features an operating temperature range of -55°C to 125°C and is RoHS compliant and lead-free. Approved by CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE.</p>
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100,000
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Price on request
100,000
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Vishay Dale
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100,000
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Price on request
100,000
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Bel Fuse
<p>The Bel Fuse 0686F0750-01 is a 750mA fast acting surface mount chip fuse from the C2F series. It is designed for overcurrent protection in space-constrained applications, featuring a compact 0603 (1608 metric) package measuring 1.60mm x 0.81mm x 0.52mm.</p><p> </p><p>This fuse is rated for 32V AC and 63V DC operation with a breaking capacity of 35A AC and 50A DC. It offers a fast blow response time and a melting I²t of 0.0013 A²s. The operating temperature range spans -55°C to 125°C, making it suitable for demanding environments.</p><p> </p><p>The component is AEC-Q200 qualified and carries cURus approval. It is compatible with lead-free and wave soldering processes and is RoHS compliant, halogen free, and lead free. Typical applications include notebook computers, automotive navigation systems, LED lighting, LCD displays, power supplies, and DC-DC converters.</p>
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100,000
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Price on request
100,000
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Vishay Dale
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100,000
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Price on request
100,000
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Diotec Semiconductor
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100,000
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Price on request
100,000
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STMicroelectronics
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100,000
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Price on request
100,000
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Bel Fuse
<p>The Bel Fuse 0ZCF0200FF2C is a surface-mount polymeric PTC resettable fuse from the 0ZCF series. It features a hold current of 2A and a trip current of 4A at a maximum voltage of 16V DC. The device can interrupt fault currents up to 100A and has a typical power dissipation of 1.5W. Its time to trip is 4.5 seconds at 8A.</p><p> </p><p>This fuse has a minimum resistance of 0.035 ohm and a maximum resistance of 0.12 ohm one hour after tripping. It operates over a temperature range of -40°C to 85°C. The part is packaged in a 2920 (7351 Metric) concave surface-mount package with dimensions 7.36mm x 5.12mm x 0.90mm.</p><p> </p><p>The 0ZCF0200FF2C is RoHS compliant, lead-free, and halogen-free as verified by the datasheet. It is suitable for overcurrent protection in a wide range of electronic applications.</p>
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100,000
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Price on request
100,000
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Littelfuse Inc.
<p>The Littelfuse 0466002.NRHF is a 2A fast-acting surface mount fuse from the 466 Series. It is rated for 63VAC/VDC with a breaking capacity of 50A at rated voltage. This thin-film device is designed for secondary overcurrent protection in space-constrained applications such as handheld portable electronics.</p><p> </p><p>Key electrical specifications include a nominal cold resistance of 0.030 Ohms, nominal melting I²t of 0.2326 A²s, and a nominal voltage drop of 78.73 mV. The fuse operates over a temperature range of -55°C to 90°C. It is compliant with RoHS and is halogen-free, as indicated by the HF suffix in the part number.</p><p> </p><p>The fuse is housed in a 1206 (3216 metric) surface mount package measuring 3.18mm x 1.52mm x 0.58mm, making it suitable for pick-and-place assembly. It carries UL and CSA agency approvals.</p>
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99,673
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Price on request
99,673
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