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.
Top Subcategories
Popular subcategories in Circuit Protection on DistyParts.
Parts in this category
Tap rows to select parts
Compare stocked parts across manufacturers and distributors, then add lines to your RFQ.
| Part & Mfr | Total Stock | Pricing & RFQ | |
|---|---|---|---|
On Semiconductor
|
1,693,140
|
Price on request
1,693,140
|
|
STMicroelectronics
|
1,682,500
|
Price on request
1,682,500
|
|
|
STMicroelectronics
|
1,666,349
|
Price on request
1,666,349
|
|
On Semiconductor
|
1,608,000
|
Price on request
1,608,000
|
|
Vishay Dale
|
1,597,040
|
Price on request
1,597,040
|
|
Vishay Dale
|
1,575,768
|
Price on request
1,575,768
|
|
|
STMicroelectronics
|
1,547,296
|
Price on request
1,547,296
|
|
On Semiconductor
|
1,520,467
|
Price on request
1,520,467
|
|
|
STMicroelectronics
|
1,507,010
|
Price on request
1,507,010
|
|
|
STMicroelectronics
<p>The ESDAXLC6-1BT2Y is a bidirectional TVS (Transient Voltage Suppression) diode manufactured by STMicroelectronics. It is designed to protect sensitive electronic circuits from electrostatic discharge (ESD) and other transient voltage events. With a reverse standoff voltage of 3V and a typical clamping voltage of 37V, this device can handle peak pulse currents up to 1.3A (8/20µs waveform) and offers a peak pulse power dissipation of 40W.</p><p> </p><p>The component features an ultra-low capacitance of just 0.4pF (measured at 200MHz to 3GHz), making it ideal for high-speed data lines such as USB, HDMI, or automotive infotainment interfaces. It operates over a wide temperature range from -55°C to 150°C junction temperature.</p><p> </p><p>Packaged in the compact SOD-882 (SOD-882T) surface-mount package, the ESDAXLC6-1BT2Y is suitable for space-constrained designs. It is RoHS3 compliant and REACH unaffected, with an MSL rating of 1 (unlimited). This device is specifically rated for automotive applications, meeting stringent reliability requirements.</p><p> </p><p>Note: This part does not include power line protection; it is intended for signal line ESD protection only.</p>
|
1,490,020
|
Price on request
1,490,020
|
|
|
STMicroelectronics
|
1,462,563
|
Price on request
1,462,563
|
|
|
Vishay Dale
|
1,394,792
|
Price on request
1,394,792
|
|
Vishay Dale
|
1,392,400
|
Price on request
1,392,400
|
|
Bourns
<p>The Bourns CDSOT23-T03C is a bidirectional transient voltage suppressor (TVS) diode array designed for surge and ESD protection in portable electronics, computing, and video equipment. It is part of the CDSOT23 series and is housed in a compact SOT-23-3 surface mount package.</p><p> </p><p>Key electrical specifications include a maximum working peak voltage of 5.0 V, a minimum breakdown voltage of 6.0 V at 1 mA, and a maximum clamping voltage of 9.8 V at 1 A. The device can handle a peak pulse current of 42 A (8/20 µs) with a corresponding clamping voltage of 13.5 V. Typical bidirectional capacitance is 300 pF at 0 V and 1 MHz.</p><p> </p><p>The CDSOT23-T03C meets IEC 61000-4-2 ESD requirements with contact discharge protection from ±8 kV to ±30 kV and air discharge protection from ±15 kV to ±30 kV. It is RoHS compliant and operates over a junction temperature range of -55°C to +150°C.</p>
|
1,390,849
|
Price on request
1,390,849
|
|
Infineon Technologies
|
1,390,000
|
Price on request
1,390,000
|
|
Diodes Incorporated
<p>The DRTR5V0U1LP-7B is a single-channel ESD protection TVS diode from Diodes Incorporated, designed to safeguard sensitive high-speed data lines. It features a maximum reverse working voltage of 5.5V and a typical reverse clamping voltage of 10V at 1A (8/20µs pulse). The device offers IEC 61000-4-2 ESD protection of ±8kV contact and ±15kV air discharge.</p><p> </p><p>With an ultra-low typical capacitance of 1pF at 1MHz, this diode is ideal for high-speed interfaces such as USB 2.0, HDMI, and Serial ATA without signal degradation. The Zener technology provides unidirectional protection for a single channel.</p><p> </p><p>Housed in a compact X1-DFN1006-2 surface-mount package (0402 footprint), the device measures just 1.08mm x 0.68mm with a maximum height of 0.53mm, making it suitable for space-constrained portable electronics. It is qualified to AEC-Q101 standards for automotive reliability and is fully RoHS compliant, halogen-free, and lead-free.</p>
|
1,381,098
|
Price on request
1,381,098
|
|
Vishay Dale
|
1,376,605
|
Price on request
1,376,605
|
|
Diodes Incorporated
|
1,348,126
|
Price on request
1,348,126
|
|
|
On Semiconductor
<p>The ESD9B5.0ST5G from ON Semiconductor is a bidirectional ESD protection diode designed to protect voltage sensitive components from electrostatic discharge (ESD). It features a working peak reverse voltage of 5V and a breakdown voltage range of 6.0V to 10.0V at 1mA. With IEC 61000-4-2 level 4 ESD protection of ±18kV for both contact and air discharge, it provides robust protection for sensitive electronics. The typical capacitance is 15pF at 1MHz, making it suitable for high-speed data lines where signal integrity is critical.</p><p> </p><p>The device offers low leakage current (≤1000nA at VRWM) and fast response time (<1ns). It is packaged in the ultra-small SOD-923 package with body dimensions of 1.0 x 0.60 x 0.40 mm, ideal for space-constrained portable applications such as cellular phones, MP3 players, and digital cameras. The operating temperature range is -55°C to 150°C, and it is AEC-Q101 qualified for automotive applications. Power dissipation is rated at 300mW on FR-5 board at 25°C.</p><p> </p><p>This diode is supplied in tape and reel packaging with 8000 units per reel. The lead finish is 100% matte tin, and it meets MSL 1 requirements for moisture sensitivity. The part is Pb-free and RoHS compliant as per the datasheet.</p>
|
1,328,583
|
Price on request
1,328,583
|
|
STMicroelectronics
|
1,321,077
|
Price on request
1,321,077
|
|
On Semiconductor
<p>The ESDL3552BPFCT5G is an ultra-low capacitance ESD protection diode designed by On Semiconductor. It protects voltage-sensitive components from electrostatic discharge (ESD) and transient voltage events, with a typical capacitance of 0.30 pF at 1 MHz.</p><p> </p><p>Key electrical characteristics include a working peak reverse voltage of 5 V, breakdown voltage of 21.5 V, and peak pulse current of 2 A (8/20 µs per IEC 61000-4-5). It provides ±20 kV ESD protection per IEC 61000-4-2 for both contact and air discharge. The device exhibits low leakage current (<50 nA) and low dynamic resistance (<1.0 Ω).</p><p> </p><p>The diode is housed in a small 3-XFDFN surface mount package (0.62 mm x 0.32 mm X4DFN3), ideal for space-constrained designs. It is suitable for high-speed data line protection in USB 2.0, USB 3.0, and USB 3.1 applications. The device is RoHS3 compliant, Pb-Free, and Halogen-Free.</p>
|
1,310,000
|
Price on request
1,310,000
|
|
|
Vishay Dale
|
1,291,429
|
Price on request
1,291,429
|
|
|
Vishay Dale
|
1,291,429
|
Price on request
1,291,429
|
|
|
Vishay Dale
|
1,291,429
|
Price on request
1,291,429
|
|
|
Vishay Dale
|
1,289,849
|
Price on request
1,289,849
|
|
|
STMicroelectronics
<p>The ESDCAN24-2BLY is a dual-line Transil transient voltage suppressor from STMicroelectronics designed specifically for protecting automotive CAN bus lines against electrostatic discharge (ESD) and other transient events. This bidirectional device provides robust protection with a breakdown voltage range of 27V to 32V and a standoff voltage of 24V. It offers a maximum clamping voltage of 43V at 5A (8/20 µs) and can handle peak pulse currents up to 5.5A with a peak pulse power rating of 230W.</p><p> </p><p>This TVS diode is AEC-Q101 qualified and complies with ISO 10605 ESD standards, providing ±30kV contact and air discharge protection. It also meets ISO 7637-3 pulse requirements for automotive environments, making it suitable for harsh automotive electrical conditions. The low leakage current of 0.1 µA ensures minimal power loss during normal operation.</p><p> </p><p>The component is supplied in a surface-mount SOT23-3 package, supporting compact PCB designs. Its operating temperature range spans -40°C to +150°C, allowing reliable performance under extreme automotive conditions. The device is ECOPACK2 compliant, meeting RoHS and REACH environmental standards.</p>
|
1,289,520
|
Price on request
1,289,520
|
|
|
On Semiconductor
<p>The ESDM3551 is a 5.5 V ESD protection diode designed to protect voltage sensitive components that require low capacitance from ESD and transient voltage events. It offers excellent clamping capability, low leakage, and fast response time. The device is housed in a micro‑packaged 0201 (0.62 mm x 0.32 mm) X3DFN package with a low body height of 0.3 mm, making it ideal for designs where board space is at a premium.</p><p> </p><p>Key specifications include a reverse working voltage of 5.5 V, a maximum clamping voltage of 8.2 V at 8 A peak pulse current, and a low capacitance of 21 pF at 1 MHz. The ESDM3551MXT5G provides robust ESD protection of ±30 kV contact and ±30 kV air discharge per IEC 61000-4-2, meeting Level 4 requirements. The device operates over a junction temperature range of -55°C to 150°C and has a power dissipation of 250 mW on an FR-5 board.</p><p> </p><p>Typical applications include USB ID line protection, SD card protection, audio line protection, and GPIO pins in portable electronics. The part is supplied in Tape & Reel packaging with a standard quantity of 10,000 pieces per reel. It is also available as an automotive qualified variant (SZESDM3551MXT5G) with AEC-Q101 certification.</p>
|
1,270,184
|
Price on request
1,270,184
|
|
On Semiconductor
|
1,267,000
|
Price on request
1,267,000
|
|
On Semiconductor
|
1,251,000
|
Price on request
1,251,000
|
|
|
On Semiconductor
<p>The ESD8351MUT5G from onsemi is a low capacitance ESD protection diode designed to protect high-speed data lines from electrostatic discharge. It features a reverse standoff voltage of 3.3V and a clamping voltage of 11.2V at 5A peak pulse current (8/20µs). The ultra-low capacitance of 0.37pF typical (0.55pF max) makes it ideal for voltage-sensitive high-speed interfaces.</p><p> </p><p>The device provides ESD protection compliant with IEC 61000-4-2 Level 4, with contact and air discharge ratings of ±15kV, and ISO 10605 up to ±30kV. Typical applications include USB 2.0 and eSATA interfaces.</p><p> </p><p>The ESD8351MUT5G is housed in a compact 0201 (0603 Metric) X3DFN2 surface mount package, making it suitable for space-constrained designs. It is RoHS compliant, Pb-Free, and Halogen Free/BFR Free, supporting environmental requirements.</p><p> </p><p>With its low leakage current (500nA max) and fast response, this Zener-type TVS diode is a reliable choice for ESD protection in portable electronics, communications equipment, and automotive applications (AEC-Q101 qualified for SZ prefix variants).</p>
|
1,243,185
|
Price on request
1,243,185
|
|
|
Littelfuse Inc.
|
1,240,000
|
Price on request
1,240,000
|
|
On Semiconductor
<p>The ESD9X12ST5G is a unidirectional TVS diode from On Semiconductor's ESD9X Series, designed to protect sensitive electronic components from electrostatic discharge (ESD) and other voltage transients. It features a stand-off voltage of 12V and a maximum clamping voltage of 23.7V at a peak pulse current of 5.9A (8/20µs). The device can dissipate up to 140W of peak power, ensuring robust protection in compact designs.</p><p> </p><p>This diode offers excellent ESD protection with a rating of ±30kV contact and air discharge per IEC 61000-4-2, and a typical response time of less than 1 ns. It is housed in a small SOD-923 surface-mount package measuring 1.0 mm x 0.60 mm with a low profile of 0.43 mm, making it ideal for space-constrained portable electronics such as cellular phones, MP3 players, and digital cameras.</p><p> </p><p>The ESD9X12ST5G is RoHS3 compliant, REACH unaffected, and MSL Level 1 with Pb-free 100% Matte Sn lead finish. It is supplied in tape and reel packaging with a standard quantity of 8000 units per reel.</p>
|
1,224,019
|
Price on request
1,224,019
|
|
Toshiba
<p>The Toshiba DF2S6.2CT,L3F is a silicon epitaxial planar ESD protection diode designed for general purpose ESD protection. It features a working peak reverse voltage of 5V and a breakdown voltage range of 5.8V to 6.6V at 5 mA. The device provides robust ESD protection with a typical contact discharge voltage of ±30kV per IEC61000-4-2.</p><p> </p><p>With a low dynamic impedance of 30Ω and a reverse leakage current of only 2.5µA at 5V, this diode minimizes signal distortion and power loss. Its typical capacitance of 32pF at 0V makes it suitable for high-speed data lines without significant signal degradation.</p><p> </p><p>The DF2S6.2CT,L3F is housed in a compact SOD-882 (CST2) surface mount package, enabling space-efficient PCB designs. It is RoHS3 and REACH compliant and is intended for ESD protection applications only, not for voltage regulation.</p>
|
1,205,000
|
Price on request
1,205,000
|
|
|
On Semiconductor
<p>The ESD8472MUT5G is a bidirectional TVS diode from ON Semiconductor, designed for protecting RF antenna ports from electrostatic discharge (ESD). With an ultra-low capacitance of 0.2pF at 1MHz, it minimizes signal degradation in high-frequency RF paths while providing robust transient suppression.</p><p> </p><p>This device features a reverse standoff voltage of 5.3V and a clamping voltage of 14V, handling peak pulse currents up to 3A (8/20µs waveform). It is a single-channel bidirectional protector, making it suitable for symmetric signal lines. The operating junction temperature range spans from -55°C to 150°C, ensuring reliability in diverse environments.</p><p> </p><p>Packaged in a compact 0201 (0603 Metric) surface mount package (2-X3DFN, 0.6x0.3mm), the ESD8472MUT5G is ideal for space-constrained designs. It is RoHS3 compliant and has an MSL rating of 1 (unlimited).</p>
|
1,201,034
|
Price on request
1,201,034
|
|
Nexperia USA Inc.
|
1,171,040
|
Price on request
1,171,040
|
|
STMicroelectronics
|
1,168,420
|
Price on request
1,168,420
|
|
Nexperia USA Inc.
|
1,095,950
|
Price on request
1,095,950
|
|
|
Diodes Incorporated
|
1,079,755
|
Price on request
1,079,755
|
|
|
STMicroelectronics
|
1,068,019
|
Price on request
1,068,019
|
|
On Semiconductor
<p>The ESD5Z5.0T1G is a unidirectional TVS diode from onsemi's ESD5Z series, designed to protect sensitive electronics from electrostatic discharge (ESD) and transient voltage events. It offers a reverse standoff voltage of 5.0 V and a maximum clamping voltage of 18.6 V at a peak pulse current of 9.4 A (8/20µs pulse). The device can handle up to 174 W of peak pulse power.</p><p> </p><p>This diode provides robust ESD protection, meeting IEC 61000-4-2 Level 4 standards with ±30 kV contact and air discharge ratings. It also features a typical response time of less than 1 ns and a low typical capacitance of 80 pF at 1 MHz, making it suitable for high-speed signal lines. The part is housed in a surface-mount SOD-523 package (SC-79 case) with a low profile of 0.7 mm, ideal for space-constrained designs.</p><p> </p><p>The ESD5Z5.0T1G is RoHS3 compliant, Pb-Free, and rated MSL 1. It is suitable for general-purpose applications including portable devices, cellular phones, digital cameras, and power supplies. The device is supplied in tape and reel packaging with a standard quantity of 3000 pieces.</p>
|
1,058,118
|
Price on request
1,058,118
|
|
On Semiconductor
|
1,051,381
|
Price on request
1,051,381
|
|
|
STMicroelectronics
|
1,042,530
|
Price on request
1,042,530
|
|
Diodes Incorporated
<p>The DT1240A-08LP3810-7 is an 8-channel low capacitance TVS diode array from Diodes Incorporated, designed for protecting high-speed data interfaces. It features a reverse standoff voltage of 3.3V and a minimum breakdown voltage of 5V. The device offers a typical clamping voltage of 7.5V at 5.5A (8/20µs) and 8.2V at 10A (100ns TLP).</p><p> </p><p>With a typical channel input capacitance of just 0.6pF at 1MHz, this array is suitable for high-speed ports such as USB 2.0/3.0/3.1, HDMI 1.4/2.0, DVI, and Serial ATA. It provides IEC 61000-4-2 ESD protection of ±16kV air and ±14kV contact, and can handle 5.5A peak pulse current (8/20µs).</p><p> </p><p>The device is assembled in a compact U-DFN3810-9 (Type B) surface mount package, with a weight of 0.005 grams. It is fully RoHS compliant, lead-free, and halogen and antimony free. The operating temperature range is -55°C to 85°C.</p>
|
1,041,060
|
Price on request
1,041,060
|
|
|
Nexperia USA Inc.
|
1,037,020
|
Price on request
1,037,020
|
|
STMicroelectronics
<p>The ESDA6V1-5SC6Y is a Zener TVS diode from STMicroelectronics designed to protect sensitive electronics from voltage transients. It features a reverse standoff voltage of 5.2V and a maximum clamping voltage of 11.4V, ensuring downstream components are safeguarded against overvoltage events.</p><p> </p><p>This device can handle peak pulse currents up to 7A (8/20µs waveform) and peak pulse power dissipation of 80W. It contains 5 unidirectional channels, making it suitable for protecting multiple signal or power lines in a single compact package.</p><p> </p><p>The ESDA6V1-5SC6Y is rated for automotive applications and operates over a junction temperature range of -40°C to 150°C. It is offered in a surface-mount SOT-23-6 package, enabling efficient assembly in space-constrained designs.</p>
|
1,029,000
|
Price on request
1,029,000
|
|
|
STMicroelectronics
|
1,028,429
|
Price on request
1,028,429
|
|
|
On Semiconductor
|
1,026,518
|
Price on request
1,026,518
|
|
STMicroelectronics
<p>The ESDA5V3SC5 is a Zener-type TVS diode from STMicroelectronics, designed to protect sensitive electronics from voltage transients. It features a reverse standoff voltage of 3V and can handle peak pulse power up to 500W. The device is unidirectional with four channels, making it suitable for multi-line protection in compact designs. The operating temperature range is -40°C to 125°C, allowing use in harsh environments. The ESDA5V3SC5 is surface mountable in the SC-74A/SOT-753 package, which is equivalent to SOT-23-5. It is RoHS3 compliant and has an MSL of 1 (unlimited). Typical applications include general purpose transient suppression in consumer electronics, telecommunications, and industrial control systems. The small package saves board space while providing robust protection.</p>
|
1,020,875
|
Price on request
1,020,875
|
|
|
STMicroelectronics
|
1,015,050
|
Price on request
1,015,050
|
|
Nexperia USA Inc.
|
1,011,020
|
Price on request
1,011,020
|
Showing 51-100 of 302,022 products