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 | |
|---|---|---|---|
Nexperia USA Inc.
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1,000,000
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Price on request
1,000,000
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Yageo
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1,000,000
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Price on request
1,000,000
|
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Littelfuse Inc.
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989,185
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Price on request
989,185
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Diodes Incorporated
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981,695
|
Price on request
981,695
|
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STMicroelectronics
<p>The ESDLIN03-1BWY is a bidirectional TVS diode from STMicroelectronics designed for automotive applications. It provides transient voltage protection with a reverse stand-off voltage of 26.5V and a clamping voltage of 44V at a peak pulse current of 3A (8/20µs).</p><p> </p><p>The device offers a peak pulse power dissipation of 250W and features a low capacitance of 3pF at 1MHz, making it suitable for high-speed signal lines. It operates over a junction temperature range of -55°C to 175°C.</p><p> </p><p>Housed in a surface-mount SC-70/SOT-323 package with gull wing terminals, the ESDLIN03-1BWY is RoHS3 compliant and REACH unaffected. It is rated MSL Level 1 for unlimited floor life.</p>
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975,000
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Price on request
975,000
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STMicroelectronics
<p>The ESDALC5-1BF4 is a bidirectional Zener-based TVS diode designed for ESD protection in general purpose applications. It features a 5V reverse standoff voltage and a peak pulse power rating of 28W, suitable for protecting sensitive electronics. The device offers a low capacitance of 10pF at 1MHz, making it ideal for high-speed signal lines. It is housed in a compact 0201 (0603 metric) surface-mount package, allowing for space-constrained designs. The operating junction temperature range is -40°C to 150°C. The component is RoHS3 compliant, REACH unaffected, and has an MSL rating of 1 (unlimited floor life). The single bidirectional channel provides efficient protection for differential or single-ended lines.</p>
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966,536
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Price on request
966,536
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Diodes Incorporated
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961,020
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Price on request
961,020
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On Semiconductor
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943,525
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Price on request
943,525
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STMicroelectronics
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933,520
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Price on request
933,520
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STMicroelectronics
<p>The ESDA5V3L is a Zener-type transient voltage suppression diode designed by STMicroelectronics for general-purpose ESD and surge protection. It features a reverse standoff voltage of 3V and can handle a peak pulse power dissipation of 300W. The device integrates two unidirectional protection channels in a compact SOT-23-3 surface-mount package.</p><p> </p><p>This TVS diode does not provide power line protection and is intended for signal line applications. It operates over a junction temperature range of -40°C to 125°C, making it suitable for industrial and consumer environments. The terminal finish is Gull Wing, and the package is also known as TO-236-3 or SC-59.</p><p> </p><p>The ESDA5V3L is RoHS3 compliant and unaffected by REACH, with an MSL rating of 1 (unlimited floor life). It is an appropriate choice for protecting sensitive electronics from voltage transients where space is limited.</p>
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908,200
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Price on request
908,200
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Vishay Dale
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907,073
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Price on request
907,073
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On Semiconductor
<p>The ESD5481MUT5G is a bidirectional ESD protection diode designed to protect voltage sensitive components from electrostatic discharge (ESD) and electrical fast transients (EFT). With a reverse working voltage of 5V and a clamping voltage of 12.4V, it provides robust protection for low-voltage circuits. The device features a low capacitance of 12pF typical at 1MHz and a fast response time of less than 1ns, making it suitable for high-speed data lines.</p><p> </p><p>This diode meets IEC 61000-4-2 Level 4 ESD protection (±20kV contact and air) and IEC 61000-4-4 Level 4 EFT protection (40A at 5/50ns). The peak pulse current is 2A under an 8/20µs waveform. It operates over a temperature range of -55°C to 150°C and dissipates up to 300mW on FR-5 board.</p><p> </p><p>The ESD5481MUT5G is offered in an ultra-small 0201 (0603 Metric) package with body dimensions of 0.60mm x 0.30mm x 0.30mm. It is surface-mount and qualified for MSL 1 with a maximum reflow temperature of 260°C. The device is Pb-Free, Halogen Free/BFR Free, and RoHS compliant. Standard packaging is tape and reel with 10,000 pieces per reel.</p>
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901,989
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Price on request
901,989
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On Semiconductor
<p>The ESD7351P2T5G is a unidirectional ESD protection diode from On Semiconductor's ESD7351 series. It is designed to protect voltage-sensitive components requiring ultra-low capacitance from electrostatic discharge (ESD) and transient voltage events. The device features a maximum standoff voltage of 3.3V and a minimum breakdown voltage of 5.0V at 1mA. With a typical capacitance of 0.43pF and maximum of 0.6pF, it is ideal for high-frequency signal lines such as RF antenna, USB 2.0, and near field communications.</p><p> </p><p>Electrical characteristics include low clamping voltage: 8.0V typical at 1A peak pulse current and 10V typical at 3A. Dynamic resistance is 0.35Ω typical. The diode provides IEC 61000-4-2 Level 4 ESD protection with ±20kV contact and air discharge ratings. Response time is less than 1ns, and reverse leakage current is typically less than 1nA (maximum 50nA at 3.3V). Total power dissipation is 150mW on FR-5 board at 25°C.</p><p> </p><p>The device is housed in a surface mount SOD-923 package and operates over a junction temperature range of -55°C to 150°C. It is Pb-Free, Halogen Free/BFR Free, and RoHS compliant. The SZ-prefix variant (SZESD7351) is available for automotive applications requiring AEC-Q101 qualification and PPAP capability.</p>
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889,324
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Price on request
889,324
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Littelfuse Inc.
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876,920
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Price on request
876,920
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On Semiconductor
<p>The ESDM2033MX4T5G is a bidirectional ESD protection diode manufactured by On Semiconductor. This component is designed to protect sensitive electronic circuits from electrostatic discharge (ESD) events. It is housed in a compact X4DFN2 surface mount package, making it suitable for space-constrained applications.</p><p> </p><p>The device is compliant with RoHS3 and REACH environmental standards, and has a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no special handling requirements for moisture sensitivity. As a bidirectional diode, it can provide protection for both positive and negative ESD strikes.</p><p> </p><p>Typical applications include ESD protection for data lines, I/O ports, and other sensitive interfaces in consumer electronics, portable devices, and communication equipment. The X4DFN2 package offers a low profile and small footprint for modern PCB designs.</p>
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871,000
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Price on request
871,000
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Diodes Incorporated
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866,625
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Price on request
866,625
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Diodes Incorporated
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861,020
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Price on request
861,020
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STMicroelectronics
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855,000
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Price on request
855,000
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STMicroelectronics
<p>The ESDA6V1L is a transient voltage suppression (TVS) diode manufactured by STMicroelectronics. It is designed for general purpose applications requiring protection against voltage transients. Key electrical specifications include a reverse standoff voltage of 5.25V and a peak pulse power rating of 300W. The device integrates 2 unidirectional TVS channels, providing protection for two independent lines.</p><p> </p><p>The device is offered in a surface-mount package compatible with TO-236-3, SC-59, and SOT-23-3 footprints, with the supplier device package designated as SOT-23-3. It operates over a temperature range of -40°C to 125°C. The component is RoHS3 compliant and REACH unaffected, with an MSL rating of 1 (unlimited).</p><p> </p><p>Designers can use the ESDA6V1L to protect sensitive circuitry from electrostatic discharge (ESD) and other transient events. Its small footprint and low profile make it suitable for space-constrained applications in consumer and industrial electronics.</p>
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850,219
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Price on request
850,219
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Vishay Dale
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836,248
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Price on request
836,248
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Nexperia USA Inc.
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831,020
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Price on request
831,020
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Littelfuse Inc.
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830,000
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Price on request
830,000
|
|
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On Semiconductor
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823,875
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Price on request
823,875
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Vishay Dale
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821,818
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Price on request
821,818
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On Semiconductor
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819,000
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Price on request
819,000
|
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On Semiconductor
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819,000
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Price on request
819,000
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On Semiconductor
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819,000
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Price on request
819,000
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On Semiconductor
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819,000
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Price on request
819,000
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STMicroelectronics
<p>The DVIULC6-4SC6 is a steering (rail-to-rail) TVS diode from STMicroelectronics designed for ESD protection on high-speed data lines. It provides four unidirectional protection channels with a low typical capacitance of 0.85pF to minimize signal degradation.</p><p> </p><p>Electrical characteristics include a reverse standoff voltage of 5V, a maximum clamping voltage of 17V at 5A peak pulse current (8/20µs), and a peak pulse power rating of 80W. The device supports power line protection and is rated for general-purpose applications.</p><p> </p><p>The component is housed in a surface-mount SOT-23-6 package and operates over a temperature range of -40°C to 125°C. Its compact footprint and low capacitance make it suitable for protecting interfaces such as HDMI, DVI, and USB.</p>
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817,028
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Price on request
817,028
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Diodes Incorporated
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812,340
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Price on request
812,340
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Nexperia USA Inc.
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808,020
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Price on request
808,020
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Murata
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803,925
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Price on request
803,925
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Vishay Dale
<p>The 1.5SMC200A-E3/9AT is a unidirectional transient voltage suppression (TVS) diode from Vishay General Semiconductor, part of the 1.5SMC series. It is designed to protect sensitive electronics from voltage transients induced by inductive load switching and lightning. The device features a reverse standoff voltage of 171V, a minimum breakdown voltage of 190V, and a maximum clamping voltage of 274V at a peak pulse current of 5.5A.</p><p> </p><p>With a peak pulse power rating of 1500W (10/1000µs waveform), this TVS diode offers excellent clamping capability and very fast response time. It is housed in a DO-214AB (SMC) surface mount package and operates over a temperature range of -65°C to 150°C. The part is RoHS3 compliant and meets MSL level 1 per J-STD-020.</p><p> </p><p>This device is suitable for general purpose transient voltage protection in consumer, industrial, and telecommunication applications. Its low profile package and glass passivated chip junction make it ideal for automated placement and reliable operation.</p>
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802,500
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Price on request
802,500
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On Semiconductor
<p>The ESD9X3.3ST5G is a unidirectional Zener TVS diode from On Semiconductor designed for ESD protection of voltage-sensitive components. It is suitable for general purpose applications and commonly used in portable electronics such as cellular phones, MP3 players, and digital cameras where board space is at a premium.</p><p> </p><p>Electrical characteristics include a reverse standoff voltage of 3.3V, minimum breakdown voltage of 5V at 1mA, and typical clamping voltage of 10.4V at a peak pulse current of 9.8A (8/20µs). Peak pulse power is 102W. The device offers ultra-low leakage and fast response time typically below 1ns. Capacitance is 80pF at 1MHz. ESD protection ratings meet IEC 61000-4-2 Level 4 with ±30kV contact and air discharge, and Human Body Model rating of 16kV. The device operates over a junction temperature range of -55°C to +150°C with a maximum power dissipation of 150mW on FR-5 board.</p><p> </p><p>Packaged in the ultra-small SOD-923 case (1.0mm x 0.60mm x 0.43mm height), it is surface mountable and supplied in tape and reel with a standard quantity of 8000 pieces. The device is Pb-free, RoHS3 compliant, REACH unaffected, and MSL 1 – unlimited. The epoxy body meets UL 94 V-0 flammability rating.</p>
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801,254
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Price on request
801,254
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Bourns
<p>The Bourns CDSOT23-T15C is a bidirectional TVS diode array from the CDSOT23 series, designed for transient voltage suppression in sensitive electronic circuits. It provides ESD protection up to ±30 kV contact and air discharge per IEC 61000-4-2, and surge protection per IEC 61000-4-5. The device features a working peak voltage of 15 V, a minimum breakdown voltage of 16.7 V at 1 mA, and a clamping voltage of 30 V at 8/20 µs peak pulse current of 17 A. With a peak pulse power rating of 500 W, it is suitable for protecting power and data lines. The SOT-23-3 package is surface-mountable with gull wing leads, and the device operates over a junction temperature range of -55°C to 150°C. Typical capacitance is 60 pF at 1 MHz, making it appropriate for high-speed data lines. The part is RoHS3 compliant and has an MSL rating of 1 (unlimited).</p>
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790,115
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Price on request
790,115
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STMicroelectronics
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790,000
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Price on request
790,000
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STMicroelectronics
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789,765
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Price on request
789,765
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Diodes Incorporated
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784,020
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Price on request
784,020
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On Semiconductor
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783,932
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Price on request
783,932
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On Semiconductor
<p>The ESDONCAN1LT3G from On Semiconductor is a dual bidirectional TVS diode designed to protect CAN transceivers from ESD and other transient voltage events. It provides protection for two data lines in a single compact SOT-23-3 package.</p><p> </p><p>With a reverse standoff voltage of 24V and a breakdown voltage range of 26.2V to 32V, this device clamps transient voltages to safe levels. It features a peak pulse current rating of 3A (8/20 µs) and peak power dissipation of 150W. Capacitance is only 10pF at 1MHz, making it suitable for high-speed CAN and CAN-FD buses. ESD protection meets IEC 61000-4-2 Level 4 with contact discharge rating of 23kV.</p><p> </p><p>The device is housed in a surface-mount SOT-23-3 (TO-236) package, rated for operation from -55°C to 150°C. It is RoHS3 compliant, Pb-Free, and meets UL 94 V-0 flammability rating. This part is suitable for industrial and automotive applications including DeviceNet and low/high-speed CAN networks.</p>
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780,000
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Price on request
780,000
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Texas Instruments
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772,709
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Price on request
772,709
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Vishay Dale
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772,020
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Price on request
772,020
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Vishay Dale
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767,220
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Price on request
767,220
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STMicroelectronics
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763,520
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Price on request
763,520
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On Semiconductor
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760,000
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Price on request
760,000
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STMicroelectronics
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759,273
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Price on request
759,273
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STMicroelectronics
<p>The CLT3-4BT6-TR is a Mixed Technology TVS device manufactured by STMicroelectronics. It features 4 independent circuits for general purpose transient voltage suppression applications.</p><p> </p><p>The device is housed in a 20-TSSOP (0.173", 4.40mm Width) surface mount package, with a supplier device package of 20-TSSOP. The mounting type is Surface Mount, making it suitable for automated assembly processes.</p><p> </p><p>This component is designed for general purpose applications where transient voltage protection is required. The mixed technology construction combines different protection mechanisms to provide robust circuit protection.</p>
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758,520
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Price on request
758,520
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STMicroelectronics
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756,963
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Price on request
756,963
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STMicroelectronics
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748,565
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Price on request
748,565
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Nexperia USA Inc.
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748,020
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Price on request
748,020
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