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 | |
|---|---|---|---|
Vishay Dale
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263,820
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Price on request
263,820
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On Semiconductor
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260,633
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Price on request
260,633
|
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Littelfuse Inc.
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260,000
|
Price on request
260,000
|
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Vishay Dale
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260,000
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Price on request
260,000
|
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Diodes Incorporated
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258,953
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Price on request
258,953
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On Semiconductor
<p>The ESD9C3.3ST5G is a Zener TVS diode from On Semiconductor designed for ESD protection in space-constrained applications. It features a working peak reverse voltage of 3.3V and a low capacitance of 12.8pF at 1MHz, making it suitable for high-speed signal lines. The device offers IEC 61000-4-2 ESD protection of ±8kV contact and ±15kV air discharge, with a response time of less than 1ns. It is housed in a surface-mount SOD-923 package with a maximum body height of 0.40mm, ideal for portable electronics. The part is Pb-Free and RoHS3 compliant, with an operating temperature range of -55°C to 150°C.</p>
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257,096
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Price on request
257,096
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Littelfuse Inc.
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255,102
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Price on request
255,102
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STMicroelectronics
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255,000
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Price on request
255,000
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Semtech
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254,494
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Price on request
254,494
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STMicroelectronics
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254,000
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Price on request
254,000
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Littelfuse Inc.
<p>The Littelfuse 0603SFF500F/32-2 is a fast-acting chip fuse designed for overcurrent protection in DC power systems up to 32V. Rated at 5A with a breaking capacity of 35A at rated voltage, this fuse provides reliable protection in a compact 0603 (1608 metric) surface mount package.</p><p> </p><p>This fuse features a nominal cold DCR of 0.013 Ω and a melting I²t of 0.7 A²s, enabling fast response to overcurrent conditions. It operates over a wide temperature range of -55°C to +125°C, making it suitable for demanding environments.</p><p> </p><p>The monolithic multilayer design offers strong arc suppression and high-temperature stability. Typical applications include laptops, cell phones, digital cameras, and other portable electronics where space is at a premium.</p>
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252,390
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Price on request
252,390
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On Semiconductor
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252,000
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Price on request
252,000
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Bel Fuse
<p>The Bel Fuse 0ZCG0110CF2B is a surface-mount polymeric PTC resettable fuse from the 0ZCG series. It is designed to provide overcurrent protection in a compact 1812 chip package.</p><p> </p><p>Key electrical specifications include a hold current of 1.1 A, a trip current of 2.2 A, and a maximum voltage of 33 V. The device can handle a maximum current of 100 A and has a typical power dissipation of 0.8 W. The time to trip is 500 ms at 8 A. Initial resistance is 0.06 Ω and post-trip resistance is 0.2 Ω maximum.</p><p> </p><p>The operating temperature range is -40°C to 85°C. The component is AEC-Q200 rated and RoHS, REACH, and Halogen Free compliant. It is lead-free with MSL 1 unlimited. The package is a 1812 (4532 Metric) concave surface mount, measuring 4.55 mm long, 3.24 mm wide, and 1.30 mm thick.</p>
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251,298
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Price on request
251,298
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STMicroelectronics
<p>The ESDCAN03-2BWY is a bidirectional Zener TVS diode from STMicroelectronics designed for electrostatic discharge (ESD) protection in automotive and CAN bus applications.</p><p> </p><p>Key electrical specifications include a reverse standoff voltage of 24V, a clamping voltage of 41V, and a peak pulse current rating of 3A (8/20µs). The device can handle 250W of peak pulse power. Capacitance is low at 3pF at 1MHz, making it suitable for high-speed signal lines.</p><p> </p><p>The component is housed in a surface mount SC-70 / SOT-323 package with a supplier device package of SOT-323-3. It operates over a junction temperature range of -55°C to 175°C. The part is RoHS3 compliant and has an MSL of 1 (unlimited).</p>
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251,020
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Price on request
251,020
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Vishay Dale
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251,000
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Price on request
251,000
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Semtech
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250,975
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Price on request
250,975
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Diodes Incorporated
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250,020
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Price on request
250,020
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Vishay Dale
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249,736
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Price on request
249,736
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Semtech
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249,146
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Price on request
249,146
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STMicroelectronics
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248,662
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Price on request
248,662
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Bourns
<p>The Bourns CD143A-SR05LC is a steering TVS diode array designed for protecting two data lines and a Vcc rail. It provides ESD protection up to ±8 kV contact and ±15 kV air discharge per IEC 61000-4-2, as well as surge protection per IEC 61000-4-5 with a peak pulse current of 13 A (8/20 μs).</p><p> </p><p>The device has a working peak voltage of 5 V and a minimum breakdown voltage of 6.1 V at 2 mA. Clamping voltages are 9 V at 5 A and 12.5 V at 13 A. Maximum reverse leakage current is 1 μA, and capacitance between I/O pins and ground is 3 pF at 1 MHz. The forward voltage is 1 V at 15 mA.</p><p> </p><p>Applications include Ethernet (10/100/1000 Base T), Firewire, USB, portable electronics, and video/graphic cards. The device is surface mount in a SOT-143 package, also known as TO-253-4 or TO-253AA. Operating temperature range is -55°C to 125°C, and storage temperature is -55°C to 150°C.</p><p> </p><p>The component is RoHS compliant, halogen free, and UL 94V-0 rated for flammability. It is suitable for use in consumer and industrial electronics requiring robust ESD protection.</p>
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247,067
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Price on request
247,067
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Diodes Incorporated
<p>The D1213A-01SO-7 is a 1-channel steering (rail-to-rail) TVS diode designed for ESD protection in high-speed data lines. It features a reverse standoff voltage of 3.3V and a typical clamping voltage of 10V. The device can handle peak pulse currents up to 5A (8/20µs) and provides ESD protection of ±8kV contact and ±15kV air discharge per IEC 61000-4-2. With a low typical input capacitance of 0.85pF, it is suitable for high-speed interfaces such as USB 2.0, HDMI, and Serial ATA. The D1213A-01SO-7 is housed in a SOT23-3 surface-mount package, operates over a temperature range of -65°C to 150°C, and is AEC-Q101 qualified for automotive applications. It is RoHS3 compliant, halogen-free, and has a moisture sensitivity level of 1.</p>
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247,020
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Price on request
247,020
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STMicroelectronics
<p>The 1.5KE39A is a unidirectional TVS diode designed for transient voltage protection. It features a reverse standoff voltage of 33.3V and a clamping voltage of 69.7V at 143A peak pulse current (10/1000µs waveform). With a peak pulse power dissipation of 1500W, it is suitable for protecting sensitive electronics from lightning and other voltage transients.</p><p> </p><p>The device offers fast response time (<1ps) and low typical reverse leakage current (<1µA at VBR min>12V). It is housed in a through-hole DO-201AA/DO-27 axial package with matte tin lead finish. The operating junction temperature range is -55 to 175°C.</p><p> </p><p>Typical applications include general purpose protection of I/O interfaces, VCC bus, and other circuits in telecom, computer, industrial, and consumer electronics. The device is RoHS3 compliant and halogen free.</p>
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246,414
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Price on request
246,414
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Nexperia USA Inc.
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244,020
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Price on request
244,020
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STMicroelectronics
<p>The ESDA6V1-5P6 is a Zener-based transient voltage suppression (TVS) diode designed for general-purpose circuit protection. It features a reverse standoff voltage (VRWM) of 3V and a peak pulse power rating of 150W, making it suitable for protecting sensitive electronics from voltage transients.</p><p> </p><p>This device integrates 5 unidirectional channels in a single surface-mount package, offering space-efficient protection for multi-line applications. The operating temperature range spans -40°C to 150°C (TJ), allowing use in harsh environments.</p><p> </p><p>The ESDA6V1-5P6 is available in SOT-563 and SOT-666 packages, with the supplier device package specified as SOT-666IP. It does not include power line protection, indicating it is intended for signal line protection rather than power supply rails.</p>
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242,152
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Price on request
242,152
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STMicroelectronics
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241,710
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Price on request
241,710
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Diodes Incorporated
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241,020
|
Price on request
241,020
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STMicroelectronics
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240,064
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Price on request
240,064
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Infineon Technologies
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240,000
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Price on request
240,000
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ROHM Semiconductor
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240,000
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Price on request
240,000
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Diodes Incorporated
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239,467
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Price on request
239,467
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On Semiconductor
<p>The ESD5205P6T6G is a low capacitance ESD protection diode from On Semiconductor designed to protect high speed data lines from electrostatic discharge (ESD). It features a reverse working voltage of 5V and a breakdown voltage of 5.5V (minimum at 1mA). The device provides a typical clamping voltage of 9V at 1A and 10V at 2A (8/20µs pulse). It can handle a peak pulse current of 2A and a peak power dissipation of 18W (8x20µs pulse).</p><p> </p><p>The ESD5205P6T6G meets IEC 61000-4-2 Level 4 ESD protection with ±15kV contact and air discharge ratings. It has a low typical junction capacitance of 9pF at 0V and 1MHz, making it suitable for high speed data line protection. The device is housed in a SOT-963 surface mount package and is supplied in tape and reel packaging with a standard quantity of 8000 pieces.</p><p> </p><p>This diode is Pb-free and RoHS3 compliant. It operates over a junction temperature range of -55°C to 125°C and can be stored from -55°C to 150°C. The maximum lead solder temperature is 260°C for 10 seconds.</p>
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239,370
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Price on request
239,370
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On Semiconductor
<p>The CM1293A-04SO is a 4-channel low capacitance ESD protection array from ON Semiconductor (now onsemi). It is designed to protect high-speed data lines from electrostatic discharge (ESD) events, meeting IEC 61000-4-2 Level 4 standards with ±8 kV contact discharge capability.</p><p> </p><p>Each channel uses a steering (rail-to-rail) topology with pairs of diodes directing ESD current to the supply rails. An integrated Zener diode protects the VCC rail without needing external bypass capacitors. The device offers ultra-low loading capacitance of 2.0 pF maximum (1.5 pF typical I/O to I/O), making it ideal for high-speed interfaces like USB 2.0, IEEE 1394, Serial ATA, DVI, and HDMI.</p><p> </p><p>The CM1293A-04SO is housed in a compact SC-74 (SOT-457) surface-mount package with a standard tape and reel packaging quantity of 3000 pieces. It operates over a temperature range of -40°C to 85°C and is RoHS3 compliant and Pb-Free.</p>
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238,876
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Price on request
238,876
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Vishay Dale
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238,620
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Price on request
238,620
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Nexperia USA Inc.
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235,210
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Price on request
235,210
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Diodes Incorporated
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235,020
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Price on request
235,020
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STMicroelectronics
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235,000
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Price on request
235,000
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Texas Instruments
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233,542
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Price on request
233,542
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Texas Instruments
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233,377
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Price on request
233,377
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Semtech
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233,047
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Price on request
233,047
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Littelfuse Inc.
<p>The 0805L010YR is a Polymeric PTC (Positive Temperature Coefficient) resettable fuse from Littelfuse Inc., part of the PolySwitch 0805L series. It is designed for overcurrent protection in compact, space-constrained applications where resettable protection is desired. The device has a hold current of 100 mA and a trip current of 0.30 A, with a maximum voltage rating of 15 V and a maximum fault current handling capability of 100 A.</p><p> </p><p>Key electrical characteristics include a typical power dissipation of 0.5 W in the tripped state, a time to trip of 1.5 seconds at 0.50 A, and resistance values of 1.000 Ω minimum initial and 6 Ω maximum post-trip (R1max). The operating temperature range is -40°C to 85°C.</p><p> </p><p>The device is housed in a standard 0805 (2012 Metric) surface mount package with concave termination, measuring 2.10 mm in length, 1.35 mm in width, and 1.00 mm in maximum thickness. It is RoHS compliant, lead-free, and halogen-free. This component is suitable for overcurrent protection in various electronic devices including consumer electronics, industrial controls, and telecommunications equipment.</p>
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231,118
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Price on request
231,118
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STMicroelectronics
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231,020
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Price on request
231,020
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STMicroelectronics
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231,020
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Price on request
231,020
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STMicroelectronics
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230,000
|
Price on request
230,000
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Nexperia USA Inc.
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229,160
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Price on request
229,160
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Vishay Dale
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228,951
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Price on request
228,951
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Texas Instruments
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228,404
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Price on request
228,404
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Littelfuse Inc.
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228,235
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Price on request
228,235
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On Semiconductor
<p>The ESD7M5.0DT5G is an ESD protection diode from On Semiconductor designed to protect voltage sensitive components from electrostatic discharge (ESD). It features an ultra-low capacitance of 2.5 pF maximum (1.25 pF in bidirectional configuration) to preserve signal integrity in high-speed applications.</p><p> </p><p>This device provides excellent clamping capability with a maximum clamping voltage of 10.4 V at 1 A peak pulse current (8/20 µs waveform). It meets IEC 61000-4-2 Level 4 ESD protection with ±10 kV contact discharge rating. Response time is typically less than 1 ns.</p><p> </p><p>The ESD7M5.0DT5G is housed in a surface mount SOT-723 package, ideal for space-constrained designs. It can protect two unidirectional lines or one bidirectional line. The device is RoHS3 compliant, Pb-Free, and rated MSL 1.</p>
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228,225
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Price on request
228,225
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Littelfuse Inc.
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228,000
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Price on request
228,000
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