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 | |
|---|---|---|---|
Bourns
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88,962
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Price on request
88,962
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Murata
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88,919
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Price on request
88,919
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Vishay Dale
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88,888
|
Price on request
88,888
|
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Vishay Dale
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88,447
|
Price on request
88,447
|
|
Nexperia USA Inc.
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88,020
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Price on request
88,020
|
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Nexperia USA Inc.
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88,020
|
Price on request
88,020
|
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Nexperia USA Inc.
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88,020
|
Price on request
88,020
|
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Diodes Incorporated
|
88,020
|
Price on request
88,020
|
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On Semiconductor
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88,000
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Price on request
88,000
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On Semiconductor
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88,000
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Price on request
88,000
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Texas Instruments
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87,891
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Price on request
87,891
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On Semiconductor
<p>The ESD8351P2T5G is a low capacitance ESD protection diode designed to protect high speed data lines from ESD. It offers ultra-low capacitance (0.55 pF max, I/O to GND) and low ESD clamping voltage. Key electrical characteristics: reverse standoff voltage of 3.3V, breakdown voltage range 5.5V to 7.8V, clamping voltage of 11.2V at 5A peak pulse current (8/20 µs), and reverse leakage current of 500 nA max. It provides ESD protection up to ±15 kV contact and air per IEC 61000-4-2, and ±30 kV per ISO 10605. The device is unidirectional with one channel, Zener type, and is not intended for power line protection. Typical applications include USB 2.0 and eSATA interfaces. The component is housed in a SOD-923 surface mount package with SMD terminations. It is RoHS3 compliant, Pb-Free, and Halogen Free/BFR Free. Operating temperature range is -55°C to 125°C.</p>
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87,700
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Price on request
87,700
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On Semiconductor
<p>The ESDL2012MX4T5G is a bidirectional TVS diode from On Semiconductor designed for ESD protection in USB applications. It features a reverse standoff voltage of 1V and a maximum clamping voltage of 5.2V, capable of handling peak pulse currents up to 8A. The device has a low typical capacitance of 0.18pF at 1MHz, making it suitable for high-speed data lines.</p><p> </p><p>This TVS diode is packaged in a compact 2-DFN (0.6x0.3) surface mount package, ideal for space-constrained designs. It operates over a temperature range of -55°C to 150°C and is RoHS3 and REACH compliant. The product is not intended for power line protection but is optimized for signal line ESD protection.</p>
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87,478
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Price on request
87,478
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Vishay Dale
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87,420
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Price on request
87,420
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|
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On Semiconductor
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87,107
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Price on request
87,107
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Diodes Incorporated
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87,000
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Price on request
87,000
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On Semiconductor
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87,000
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Price on request
87,000
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On Semiconductor
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86,890
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Price on request
86,890
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Vishay Dale
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86,764
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Price on request
86,764
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Littelfuse Inc.
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86,500
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Price on request
86,500
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On Semiconductor
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86,487
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Price on request
86,487
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Bourns
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86,158
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Price on request
86,158
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|
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On Semiconductor
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86,020
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Price on request
86,020
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|
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Vishay Dale
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85,514
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Price on request
85,514
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|
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Texas Instruments
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85,430
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Price on request
85,430
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Littelfuse Inc.
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85,300
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Price on request
85,300
|
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STMicroelectronics
<p>The ESDA5V3SC6 is a 3V, 500W Zener TVS diode designed by STMicroelectronics for general purpose circuit protection. It provides transient voltage suppression with a reverse standoff voltage of 3V and a peak pulse power rating of 500W. The device features four unidirectional channels, allowing multiple lines to be protected in a single component.</p><p> </p><p>This TVS diode is surface mountable in a compact SOT-23-6 package, making it suitable for space-constrained designs. It operates over a temperature range of -40°C to 125°C, ensuring reliability in various environments. The component is RoHS3 compliant and REACH unaffected, with a moisture sensitivity level of 1 (unlimited).</p><p> </p><p>Typical applications include general purpose voltage clamping in electronic circuits, protecting sensitive ICs from electrostatic discharge and other transient events. The Zener diode structure provides fast response for overvoltage protection.</p>
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85,020
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Price on request
85,020
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STMicroelectronics
<p>The ESDAVLC8-1BM2 from STMicroelectronics is a bidirectional TVS (Transient Voltage Suppression) diode designed for general purpose circuit protection. It features a reverse standoff voltage of 3V and a peak pulse power rating of 30W, providing effective clamping of transient events.</p><p> </p><p>This device offers a typical capacitance of 4.5pF at 1MHz, making it suitable for protecting high-speed data lines from electrostatic discharge (ESD) and other voltage transients. The operating temperature range spans from -55°C to 150°C, ensuring reliable performance across extreme environments.</p><p> </p><p>Housed in a compact surface-mount SOD-882 package, the ESDAVLC8-1BM2 supports space-constrained PCB designs. Its bidirectional configuration simplifies orientation and allows protection of both polarities in a single device. The product is claimed to be RoHS3 compliant and REACH unaffected, with an MSL rating of 1 (unlimited).</p>
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85,020
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Price on request
85,020
|
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On Semiconductor
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85,009
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Price on request
85,009
|
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Littelfuse Inc.
<p>The 1.5KE120CA is a 1500W bidirectional Zener TVS diode from Littelfuse Inc., part of the 1.5KE series. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.</p><p> </p><p>Key electrical specifications include a reverse standoff voltage (Vrwm) of 102V, a clamping voltage (Vc) of 165V at a peak pulse current (Ipp) of 9.2A, and a peak pulse power dissipation (Pppm) of 1500W (10/1000μs waveform). The device offers a fast response time of less than 1ps from 0V to breakdown voltage minimum. It is a bidirectional channel component, suitable for general purpose applications.</p><p> </p><p>The part is housed in a DO-201AA, DO-27, or Axial through-hole package with a supplier device package of DO-201. It features a matte tin (Sn) terminal finish and is Pb-free E3 compliant. Operating temperature range is -55°C to 175°C. The plastic package has a V-0 flammability rating per UL.</p>
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85,000
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Price on request
85,000
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STMicroelectronics
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85,000
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Price on request
85,000
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Littelfuse Inc.
<p>The Littelfuse 1210L110/16WR is a polymeric PTC resettable overcurrent protection device from the 1210L series. It is designed for surface mount applications where space is limited and resettable protection is required.</p><p> </p><p>Key electrical specifications include a hold current of 1.1A, trip current of 2.2A, maximum voltage rating of 16V, and a fault current capability of 100A. The device trips within 100ms at 8A. The minimum resistance is 60mΩ, and the maximum post-trip resistance is 210mΩ. Power dissipation in the tripped state is 0.6W.</p><p> </p><p>The device is supplied in a 1210 (3225 Metric) concave surface mount package with dimensions of 3.22mm x 2.58mm and a maximum thickness of 1.25mm. It operates over a temperature range of -40°C to 85°C. The part is RoHS compliant, lead-free, and halogen-free.</p>
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85,000
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Price on request
85,000
|
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Littelfuse Inc.
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85,000
|
Price on request
85,000
|
|
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On Semiconductor
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84,900
|
Price on request
84,900
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On Semiconductor
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84,495
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Price on request
84,495
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Littelfuse Inc.
<p>The 0437008.WR is a 1206 fast-acting surface mount fuse from Littelfuse's 437 series. It is designed for overcurrent protection in circuits requiring high ambient temperature operation up to 150°C.</p><p> </p><p>Electrical specifications include an 8A current rating, 32V voltage rating, and 50A breaking capacity at 32V. The fuse features a fast blow response with a melting I²t of 6.4 A²s (nominal 7.23 A²s from the datasheet). Cold resistance is 0.0093Ω, with a voltage drop of 0.13V and power dissipation of 1.04W at rated current.</p><p> </p><p>The device is housed in a 1206 (3216 Metric) surface mount package with dimensions 3.20mm x 1.63mm x 0.82mm. It is suitable for both leaded and lead-free reflow and wave soldering processes.</p><p> </p><p>Compliance includes RoHS, REACH unaffected, halogen-free, and MSL level 1. Applications include overcurrent protection in power supplies, battery circuits, and automotive electronics where high temperature stability is required.</p>
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84,082
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Price on request
84,082
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On Semiconductor
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84,000
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Price on request
84,000
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Littelfuse Inc.
<p>The 046602.5NR is a 466 Series Fast-Acting Surface Mount Fuse from Littelfuse. It is a thin-film device rated at 2.5A and 32V, designed for secondary protection of circuits in space-constrained applications such as handheld portable electronic devices. The fuse has a fast blow response time, with a maximum opening time of 5 seconds at 200% rated current, and a breaking capacity of 50A at rated voltage. The melting I²t is 0.3516 A²s.</p><p> </p><p>The fuse is packaged in a 1206 (3216 Metric) surface mount package with dimensions of 3.18mm x 1.52mm x 0.58mm. It operates over a temperature range of -55°C to 90°C. The 466 Series is 100% lead-free and RoHS compliant, with a halogen-free option available using the "HF" suffix. The component is compatible with lead-free soldering profiles and features a flat top surface for pick-and-place assembly.</p><p> </p><p>Agency approvals include CSA (file number 29862) and UL (file number E10480), and the series also conforms to EN 60127-1 and EN 60127-7, with CE and UKCA markings indicating suitability for European and UK markets. The fuse is ideal for height-sensitive applications requiring low profile and reliable overcurrent protection.</p>
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83,960
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Price on request
83,960
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Diodes Incorporated
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83,805
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Price on request
83,805
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Taiwan Semiconductor
<p>The 1.5KE15A is a 1500W peak pulse power transient voltage suppression (TVS) diode designed for protecting sensitive electronic circuits from high-voltage transients. It features a breakdown voltage of 15.1V at 5% tolerance and a clamping voltage of 21.2V at a peak pulse current of 74A (10/1000µs waveform).</p><p> </p><p>This unidirectional device is intended for general-purpose applications and is not designed for power line protection. It offers a fast response time of less than 1ps from 0V to breakdown voltage, making it suitable for lightning and surge protection in telecom, industrial, and consumer electronics.</p><p> </p><p>The part is housed in a through-hole DO-201AA/DO-27 axial package (supplier device package DO-201) and operates over a junction temperature range of -55°C to 175°C.</p>
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83,650
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Price on request
83,650
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Littelfuse Inc.
<p>The 1210L380SLYR is a polymeric PTC resettable fuse manufactured by Littelfuse Inc. This device is designed for overcurrent protection in low-voltage circuits. It offers a 3.8A hold current and a 6V maximum voltage rating. The time to trip is specified as 5 seconds under fault conditions. The part features a low initial resistance of 16 milliohms, minimizing power loss during normal operation.</p><p> </p><p>This surface mount component uses a 1210 (3225 metric) concave package with dimensions of 3.22mm by 2.58mm and a maximum thickness of 0.70mm. It supports an operating temperature range of -40°C to 85°C. The polymeric PTC technology provides resettable protection, automatically returning to a low-resistance state after the fault is removed and power is cycled.</p><p> </p><p>Applications include overcurrent protection for power supplies, battery circuits, and various electronic systems where space-constrained surface mount assembly is required. The device is RoHS compliant and halogen free per the manufacturer's specifications.</p>
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83,640
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Price on request
83,640
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On Semiconductor
<p>The ESD8016MUTAG is an ESD protection diode array designed by ON Semiconductor for high-speed data line protection. It is specifically intended for USB 3.0/3.1 and Thunderbolt interfaces, offering ultra-low capacitance to maintain signal integrity.</p><p> </p><p>Key electrical specifications include a reverse working voltage of 3.3V, breakdown voltage of 5.5V min (7.0V typ), and reverse leakage current of 1.0 µA typical. The device provides IEC 61000-4-2 ESD protection at ±15 kV for both contact and air discharge. The maximum capacitance from I/O to GND is 0.32 pF, making it suitable for high-speed differential pairs.</p><p> </p><p>The device is housed in a UDFN8 package (Case 517CX) with surface mount mounting. It is supplied in tape and reel packaging with a standard quantity of 3000 pieces. The operating junction temperature range is -55°C to +125°C, and storage temperature range is -55°C to +150°C.</p><p> </p><p>The ESD8016MUTAG is Pb-Free, Halogen Free/BFR Free, and RoHS3 compliant. It is designed for easy PCB layout with a flow-through style package that maintains consistent impedance for high-speed differential lines.</p>
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83,523
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Price on request
83,523
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Vishay Dale
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83,500
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Price on request
83,500
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Vishay Dale
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83,500
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Price on request
83,500
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Vishay Dale
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83,410
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Price on request
83,410
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STMicroelectronics
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83,300
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Price on request
83,300
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Littelfuse Inc.
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82,507
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Price on request
82,507
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Diodes Incorporated
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82,501
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Price on request
82,501
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Nexperia USA Inc.
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82,020
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Price on request
82,020
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Diodes Incorporated
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82,020
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Price on request
82,020
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