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 | |
|---|---|---|---|
Panasonic Electronic Components
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42,500
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Price on request
42,500
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Littelfuse Inc.
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42,404
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Price on request
42,404
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Vishay Dale
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42,270
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Price on request
42,270
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STMicroelectronics
<p>The CLP200M is a surface mount thyristor manufactured by STMicroelectronics, designed for overvoltage protection in circuit protection applications. This thyristor is housed in a PowerSO-10 package with an exposed bottom pad, which facilitates efficient heat dissipation and improved thermal performance.</p><p> </p><p>The device is RoHS3 compliant, REACH unaffected, and has a moisture sensitivity level of 1 (unlimited), making it suitable for a wide range of manufacturing environments. With its surface mount form factor, the CLP200M enables compact design and automated assembly, ideal for modern electronic systems.</p>
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42,100
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Price on request
42,100
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STMicroelectronics
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42,050
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Price on request
42,050
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STMicroelectronics
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42,020
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Price on request
42,020
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Littelfuse Inc.
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42,016
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Price on request
42,016
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STMicroelectronics
<p>The BZW06-28 is a unidirectional TVS diode manufactured by STMicroelectronics, designed for general purpose transient voltage suppression. It offers a peak pulse power of 600W and a peak pulse current of 68A (8/20µs). The reverse standoff voltage is 28.2V, with a clamping voltage of 59V. This device is not intended for power line protection. It is housed in a DO-204AC (DO-15) axial leaded package, suitable for through-hole mounting. The capacitance is 1000pF at 1MHz. The diode is RoHS3 compliant and has an MSL of 1 (unlimited).</p>
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42,000
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Price on request
42,000
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On Semiconductor
<p>The ESD7331MUT5G is an ESD protection diode designed by On Semiconductor to protect voltage sensitive components from electrostatic discharge and transient voltage events. It offers excellent clamping capability, low capacitance, low leakage, and fast response time, making it ideal for designs where board space is at a premium.</p><p> </p><p>Key electrical specifications include a reverse working voltage of 3.3V, breakdown voltage of 4.0V (minimum at 1mA), typical clamping voltage of 7.5V at 1A, and ultra-low junction capacitance of 0.4pF typical (0.75pF maximum). The device provides IEC 61000-4-2 ESD protection of ±15kV contact and ±15kV air discharge. Maximum power dissipation is 250mW.</p><p> </p><p>Due to its low capacitance, the ESD7331MUT5G is well suited for high frequency designs such as USB 2.0/3.0, MHL 2.0, and eSATA interfaces. The device is packaged in a tiny 2-X3DFN (0.6x0.3mm) 0201 surface mount package with a body height of 0.3mm. It is supplied in tape and reel packaging with 15,000 pieces per reel.</p><p> </p><p>The device is Pb-Free, Halogen Free/BFR Free, and RoHS compliant. Operating temperature range is -55°C to 150°C junction temperature.</p>
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41,864
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Price on request
41,864
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On Semiconductor
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41,850
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Price on request
41,850
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Diodes Incorporated
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41,842
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Price on request
41,842
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On Semiconductor
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41,613
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Price on request
41,613
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Littelfuse Inc.
<p>The 0467001.NR is part of the Littelfuse 467 Series of fast-acting surface mount fuses. This ultra-small thin-film device is rated for 1A at 32VAC/DC and provides a breaking capacity of 50A. Designed for secondary overcurrent protection in space-constrained applications, it is ideal for handheld portable electronics, battery packs, digital cameras, DVD players, and hard disk drives.</p><p> </p><p>The fuse features a fast-blow response time with a nominal melting I²t of 0.0212 A²s. It operates over a temperature range of -55°C to 90°C and is housed in a 0603 (1608 Metric) package with surface mount termination. With a low profile of 0.31mm, it is suitable for pick-and-place operations and compatible with lead-free soldering profiles.</p><p> </p><p>This component is halogen free, lead-free, and RoHS3 compliant. It also carries CSA and UL agency approvals. The 467 Series offers improved performance at elevated ambient temperatures and has identical mounting pad and electrical characteristics to Littelfuse 431 and 434 Series products.</p>
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41,500
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Price on request
41,500
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Vishay Dale
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41,466
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Price on request
41,466
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Semtech
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41,433
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Price on request
41,433
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STMicroelectronics
<p>The 1.5KE62CA is a bidirectional TVS diode from STMicroelectronics, part of the 1.5KE series, designed to protect sensitive electronic equipment from voltage transients. It offers a peak pulse power dissipation of 1500W (10/1000µs waveform) and a clamping voltage of 111V at a peak pulse current of 90A (8/20µs). The device has a reverse standoff voltage of 53V and a capacitance of 850pF at 1MHz. It is housed in a through-hole DO-201 (DO-201AA, DO-27) axial package with matte tin lead-free plating. The operating junction temperature range is -55°C to 175°C, with a steady state power dissipation of 6.5W. The diode is RoHS3 compliant, halogen free, and suitable for general purpose applications such as I/O interface, VCC bus, and telecom/industrial equipment protection. It features fast response time (<1ps) and meets IEC 61000-4-2 ESD standards (30kV air/contact).</p>
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41,400
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Price on request
41,400
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Bourns
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41,169
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Price on request
41,169
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Bourns
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41,067
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Price on request
41,067
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Nexperia USA Inc.
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41,020
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Price on request
41,020
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Nexperia USA Inc.
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41,020
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Price on request
41,020
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Kyocera AVX
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41,000
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Price on request
41,000
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Nexperia USA Inc.
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40,995
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Price on request
40,995
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Vishay Dale
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40,970
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Price on request
40,970
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Semtech
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40,833
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Price on request
40,833
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Diodes Incorporated
<p>The 1.5KE300CA-T is a bidirectional transient voltage suppression (TVS) diode from Diodes Incorporated. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. This component offers a peak pulse power dissipation of 1500W and a clamping voltage of 414V, making it suitable for general-purpose circuit protection applications.</p><p> </p><p>With a reverse standoff voltage of 256V and a peak pulse current rating of 5A, the 1.5KE300CA-T provides effective clamping of overvoltage events. The device features a glass passivated die construction for enhanced reliability and fast response time. It is RoHS3 compliant, lead-free, and halogen and antimony free.</p><p> </p><p>The diode is housed in a DO-201 (DO-201AA, DO-27) axial leaded package, designed for through-hole mounting. The operating temperature range is -55°C to 175°C. The bidirectional configuration allows for protection in both polarities.</p>
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40,677
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Price on request
40,677
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STMicroelectronics
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40,661
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Price on request
40,661
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STMicroelectronics
<p>The ESDCAN04-2BLY is a Zener TVS diode from STMicroelectronics designed for protecting automotive CAN bus lines. It features a reverse standoff voltage of 25.5V and a clamping voltage of 43V at 3.7A peak pulse current (8/20µs). With a peak pulse power rating of 230W, it provides robust transient protection. The device has a typical capacitance of 17pF at 1MHz, making it suitable for high-speed data lines. It is surface mounted in a SOT23-3 package (also available as TO-236-3, SC-59) and operates over a temperature range of -40°C to 150°C. The part is RoHS3 compliant and has an MSL of 1. It is not intended for power line protection.</p>
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40,476
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Price on request
40,476
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STMicroelectronics
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40,401
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Price on request
40,401
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Bourns
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40,378
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Price on request
40,378
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STMicroelectronics
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40,347
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Price on request
40,347
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Littelfuse Inc.
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40,307
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Price on request
40,307
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Würth Elektronik
<p>The Würth Elektronik 82307050029 is a surface-mount ESD protection device designed for general purpose applications. It features a working voltage of 5V DC and a typical clamping voltage of 17V at 1A (8/20 µs waveform). With an ultra-low typical capacitance of 0.2 pF (maximum 0.8 pF) measured at 1 MHz, it is suitable for high-speed signal lines. The device provides ESD protection up to ±15 kV air discharge per IEC 61000-4-2.</p><p> </p><p>Response time is less than 1 ns, and maximum leakage current is 0.05 µA at the rated operating voltage. The varistor body is made of zinc oxide (ZnO) with a silver/nickel/tin (Ag/Ni/Sn) termination finish. It is housed in a 0402 (1005 metric) package and is supplied in tape and reel packaging. The operating temperature ranges from -40°C to +85°C, with storage from -50°C to +125°C.</p>
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40,210
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Price on request
40,210
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Littelfuse Inc.
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40,200
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Price on request
40,200
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On Semiconductor
<p>The ESD5Z5.0T5G is a Zener-type ESD protection diode from On Semiconductor, part of the ESD5Z2.5T1G series. It is designed to protect voltage-sensitive components from electrostatic discharge and transient voltage events.</p><p> </p><p>Key electrical specifications include a reverse stand-off voltage of 5.0V, a maximum clamping voltage of 18.6V, and a peak pulse current of 9.4A (8/20µs pulse). The device provides high ESD immunity with ratings of ±30kV contact and ±30kV air per IEC 61000-4-2, and a minimum 16kV HBM rating. It also offers 40A EFT protection per IEC 61000-4-4 Level 4.</p><p> </p><p>The diode is housed in a compact SOD-523 surface-mount package (SC-79) measuring 1.2mm x 0.8mm with a low profile of 0.7mm. It operates over a junction temperature range of -55°C to 150°C and is qualified for a maximum reflow temperature of 260°C. The package is Pb-free and RoHS compliant, with matte tin lead finish and UL 94 V-0 flammability rating.</p>
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40,090
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Price on request
40,090
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Littelfuse Inc.
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40,069
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Price on request
40,069
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Diodes Incorporated
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40,030
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Price on request
40,030
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On Semiconductor
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40,020
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Price on request
40,020
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Nexperia USA Inc.
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40,020
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Price on request
40,020
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Vishay Dale
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40,020
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Price on request
40,020
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Diodes Incorporated
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40,020
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Price on request
40,020
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Murata
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40,009
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Price on request
40,009
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STMicroelectronics
<p>The ESDA17P50-1U1M is a unidirectional Zener-type TVS diode from STMicroelectronics designed for general purpose circuit protection. It features a reverse standoff voltage of 15V and a maximum clamping voltage of 26.5V under 8/20µs surge conditions. The device can handle a peak pulse current of 46A (8/20µs) and a peak pulse power of 1.2kW (8/20µs), making it suitable for protecting sensitive electronics from transient overvoltages.</p><p> </p><p>The device is configured as a single unidirectional channel, suitable for protecting a single line. It is not intended for power line protection. The operating junction temperature range is -55°C to 150°C, allowing use in a wide variety of environments.</p><p> </p><p>The ESDA17P50-1U1M is offered in a compact 2-UDFN surface mount package, specifically the 1610 supplier device package. This package is suitable for automated assembly and space-constrained designs. The device is RoHS3 compliant, REACH unaffected, and has an MSL rating of 1 (unlimited).</p>
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40,006
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Price on request
40,006
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Littelfuse Inc.
<p>The 049401.5NR is a surface mount fuse from Littelfuse's 494 series. It is a fast-acting (fast blow) fuse rated for 1.5A at 32V AC/DC. The fuse offers a breaking capacity of 35A and a melting I²t of 0.0766 A²s. It operates over a temperature range of -50°C to 90°C.</p><p> </p><p>The component is housed in an ultra-compact 0603 (1608 metric) package with dimensions of 1.60mm x 0.81mm x 0.31mm, making it suitable for space-constrained applications such as handheld portable electronics. The fuse is validated for surface mount assembly and is compatible with lead-free soldering processes.</p><p> </p><p>This part carries CSA and UR safety approvals. It is RoHS compliant, REACH unaffected, and has a moisture sensitivity level of 1 (unlimited). The thin-film construction provides reliable overcurrent protection for secondary circuits in battery packs, digital cameras, and hard disk drives.</p>
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40,000
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Price on request
40,000
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On Semiconductor
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40,000
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Price on request
40,000
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On Semiconductor
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40,000
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Price on request
40,000
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Bel Fuse
<p>The Bel Fuse 0697H0315-01 is a subminiature radial lead fuse from the 0697H series, designed for time-lag (slow blow) operation. It is rated for 315 mA with a voltage rating of 350 VAC and 100 VDC, offering a breaking capacity of 100 A AC and 65 A DC. This fuse is AEC-Q200 qualified and meets UL 248-14 requirements, making it suitable for automotive and industrial applications.</p><p> </p><p>Key electrical characteristics include a melting I²t of 0.27 A² sec and an operating temperature range of -55°C to 125°C. The slow blow response allows it to handle inrush currents without nuisance tripping, ideal for power supplies, battery chargers, and adapters.</p><p> </p><p>The fuse comes in a through-hole radial box package measuring 8.35 mm x 4.00 mm x 7.80 mm. It is RoHS3 compliant, lead-free, and halogen-free, with a UL 94-V0 rated black thermoplastic housing. The marking includes 'bel', '0697H', current rating, and voltage rating.</p>
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40,000
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Price on request
40,000
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STMicroelectronics
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40,000
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Price on request
40,000
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Microchip Technology
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40,000
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Price on request
40,000
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Bel Fuse
<p>The 0ZRE0033FF1A is a polymeric PTC resettable fuse from Bel Fuse's 0ZRE series. It provides overcurrent protection with a hold current of 0.33 A and a trip current of 0.74 A at 23°C. The device is rated for a maximum voltage of 240V AC/DC and can interrupt up to 265V. The typical power dissipation is 1.7 W, and the time to trip at 0.74 A is 21 seconds.</p><p> </p><p>Electrical characteristics include a minimum resistance of 0.83 Ω and a post-trip maximum resistance of 2.6 Ω. The device operates over a temperature range of -40°C to 85°C. It is housed in a radial, disc through-hole package with lead spacing of 5.10 mm, and dimensions of 11.40 mm x 3.80 mm x 16.50 mm.</p><p> </p><p>The 0ZRE0033FF1A is RoHS compliant, lead-free, and halogen-free. It holds agency approvals from TUV and UL, and is AEC-Q compliant for automotive applications. This fuse is suitable for use in power supplies, motor controls, and industrial equipment where reliable resettable overcurrent protection is required.</p>
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40,000
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Price on request
40,000
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Bel Fuse
<p>The Bel Fuse 5ST 100-R is a 5x20mm glass tube time-lag fuse designed for low breaking capacity applications. It is rated for 100mA at 250VAC with a breaking capacity of 35A at rated voltage.</p><p> </p><p>The slow blow (time-lag) characteristic allows the fuse to withstand temporary inrush currents without nuisance opening, making it suitable for circuits with capacitive or inductive loads. The fuse meets IEC 60127-2 standard sheet 3.</p><p> </p><p>The fuse is housed in a glass tube with nickel-plated brass caps and matte tin-plated copper leads. It requires a holder for mounting. Operating temperature range is -55°C to 125°C.</p><p> </p><p>The 5ST 100-R is RoHS3 compliant, lead-free, and halogen-free. It holds safety approvals from CCC, CE, CSA, cURus, IMQ, SEMKO, and VDE.</p>
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40,000
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Price on request
40,000
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