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 | |
|---|---|---|---|
Littelfuse Inc.
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35,000
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Price on request
35,000
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STMicroelectronics
<p>The BZW06-23B is a bidirectional transient voltage suppressor diode from STMicroelectronics designed for over-voltage and ESD protection in commercial and industrial applications.</p><p> </p><p>Key electrical specifications include a reverse stand-off voltage of 23.1 V, a maximum clamping voltage of 48.3 V at 83 A peak pulse current (8/20 µs waveform), and a peak pulse power rating of 600 W (10/1000 µs waveform). The device also features a typical capacitance of 575 pF at 1 MHz, steady state power dissipation of 5 W at 75°C ambient, and a junction temperature range of -50 to +175 °C.</p><p> </p><p>The part is offered in a through-hole DO-204AC (DO-15) axial package with UL 94V-0 rated case material, weighing approximately 0.4 g. It is compliant with RoHS (exemption 7a-I), REACH, halogen-free, and conflict mineral free requirements. The bidirectional design allows electrical characteristics to apply in both directions without cathode marking.</p>
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35,000
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Price on request
35,000
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Littelfuse Inc.
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35,000
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Price on request
35,000
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STMicroelectronics
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35,000
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Price on request
35,000
|
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Taiwan Semiconductor
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35,000
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Price on request
35,000
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STMicroelectronics
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35,000
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Price on request
35,000
|
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Semtech
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35,000
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Price on request
35,000
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STMicroelectronics
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35,000
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Price on request
35,000
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STMicroelectronics
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35,000
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Price on request
35,000
|
|
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Texas Instruments
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34,889
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Price on request
34,889
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Matsuo Electric Co., LTD
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34,800
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Price on request
34,800
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Littelfuse Inc.
<p>The Littelfuse 2920L075/60MR is a PolySwitch resettable PPTC (Polymeric Positive Temperature Coefficient) overcurrent protection device. It is designed for medium voltage applications up to 60V where resettable protection is desired. The device has a hold current of 750 mA at 20°C still air and a minimum trip current of 1.5 A. It can handle a maximum current of 10 A and has a typical power dissipation of 1.5 W in the tripped state.</p><p> </p><p>This PTC fuse provides fast response to overcurrent conditions, with a maximum time to trip of 300 ms at 8 A. The initial minimum resistance is 300 mΩ (un-soldered state), and the maximum resistance after trip or reflow soldering is 950 mΩ. The device is housed in a 2920 (7351 Metric) concave surface mount package with dimensions of 7.35 mm length, 5.12 mm width, and 1.25 mm maximum thickness.</p><p> </p><p>The 2920L075/60MR operates over a temperature range of -40°C to 85°C. It is suitable for use in a variety of electronic circuits requiring resettable overcurrent protection in a compact surface mount form factor.</p>
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34,789
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Price on request
34,789
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Littelfuse Inc.
<p>The Littelfuse 1812L075/24DR is a PolySwitch resettable PTC fuse from the 1812L series. It provides overcurrent protection in a compact surface mount 1812 (4532 metric) concave package. This polymeric PTC device has a maximum voltage rating of 24V and a hold current of 750mA. The trip current is 1.5A, with a maximum time to trip of 200ms at 8A. The initial resistance ranges from 110mΩ to 290mΩ, and typical power dissipation is 0.8W. The device is AEC-Q200 qualified, making it suitable for automotive applications. It is RoHS compliant, lead-free, and halogen-free. The operating temperature range is -40°C to 85°C. Applications include USB peripherals, PCI cards, and game console port protection as mentioned in the datasheet.</p>
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34,624
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Price on request
34,624
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Kyocera AVX
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34,534
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Price on request
34,534
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STMicroelectronics
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34,515
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Price on request
34,515
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Littelfuse Inc.
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34,450
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Price on request
34,450
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Diodes Incorporated
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34,265
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Price on request
34,265
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STMicroelectronics
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34,265
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Price on request
34,265
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Bourns
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34,211
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Price on request
34,211
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Vishay Dale
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34,200
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Price on request
34,200
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Bel Fuse
<p>The 0ZCJ0050AF2E is a polymeric PTC resettable fuse from Bel Fuse's 0ZCJ series. It features a hold current of 500 mA and a trip current of 1 A at 24 V rated voltage. The device can handle a maximum fault current of 100 A and has a typical power dissipation of 0.6 W. The time to trip is 100 ms at 8 A. The resistance is 750 mΩ typical with a minimum resistance of 150 mΩ. This PTC fuse is designed for overcurrent protection in various applications. It is AEC-Q200 rated for automotive use and has agency approvals from TUV and UL. The component is lead-free and halogen-free, compliant with RoHS. It is packaged in a 1206 (3216 metric) surface mount package with concave terminals. Operating temperature range is -40°C to 85°C. The device is suitable for use in automotive electronics, industrial controls, and consumer electronics where resettable overcurrent protection is required.</p>
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34,132
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Price on request
34,132
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Littelfuse Inc.
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34,050
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Price on request
34,050
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Nexperia USA Inc.
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34,020
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Price on request
34,020
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Nexperia USA Inc.
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34,020
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Price on request
34,020
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Diodes Incorporated
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34,020
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Price on request
34,020
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Nexperia USA Inc.
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34,020
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Price on request
34,020
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Nexperia USA Inc.
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34,020
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Price on request
34,020
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Nexperia USA Inc.
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34,020
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Price on request
34,020
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|
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STMicroelectronics
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34,000
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Price on request
34,000
|
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Littelfuse Inc.
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34,000
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Price on request
34,000
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Littelfuse Inc.
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34,000
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Price on request
34,000
|
|
STMicroelectronics
<p>The ESDALCL6-2SC6 is a steering (rail to rail) TVS diode designed for general purpose applications. It provides protection for two unidirectional channels with a reverse standoff voltage of 3V and a clamping voltage of 17V. The device can handle peak pulse current of 5A (8/20µs) and offers power line protection. It is housed in a SOT-23-6 surface mount package and operates over a temperature range of -40°C to 125°C. This TVS diode is suitable for protecting sensitive electronics from electrostatic discharge and other transient voltage events.</p>
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34,000
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Price on request
34,000
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Semtech
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33,998
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Price on request
33,998
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On Semiconductor
<p>The 1SMA15AT3G is a unidirectional Zener TVS diode from On Semiconductor designed to protect sensitive electronics from voltage transients. With a reverse standoff voltage of 15V and a clamping voltage of 24.4V, it provides robust protection for 12V and 15V supply rails.</p><p> </p><p>This device can handle peak pulse currents up to 16.4A and delivers 400W of peak pulse power, making it suitable for general-purpose transient suppression. The Zener technology ensures fast response to overvoltage events.</p><p> </p><p>The 1SMA15AT3G is housed in a surface mount DO-214AC (SMA) package, ideal for automated assembly. It operates over a wide temperature range from -65°C to 150°C and has a capacitance of 758pF at 1MHz.</p>
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33,789
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Price on request
33,789
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Micro Commercial
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33,743
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Price on request
33,743
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Bourns
<p>The Bourns CDNBS08-SLVU2.8-4 is a low capacitance TVS diode array designed for surge and ESD protection in high-speed data lines. It protects up to four I/O ports with a working voltage of 2.8V and a breakdown voltage of 3.0V at 1 mA. The device features a low capacitance of 6 pF at 0V and 1 MHz, making it suitable for Ethernet 10/100 Base T and other high-speed interfaces.</p><p> </p><p>Electrical characteristics include a peak pulse current of 30 A (8/20 µs) and peak pulse power of 600 W (8/20 µs). Clamping voltage is 10 V typical at 5 A, 13-15 V at 24 A, and 15-21 V at 30 A per differential line pair. The device meets IEC 61000-4-2 ESD protection with ±8 kV (min) contact and ±30 kV air discharge, IEC 61000-4-4 EFT protection at 60 A, and IEC 61000-4-5 surge protection.</p><p> </p><p>The device is housed in an 8-SOIC surface mount package (0.154", 3.90mm width) and operates over a junction temperature range of -55°C to 125°C. It is RoHS compliant and includes a California Prop 65 warning. Applications include Ethernet, LAN devices, personal digital assistants, and instrumentation.</p>
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33,614
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Price on request
33,614
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Texas Instruments
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33,500
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Price on request
33,500
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On Semiconductor
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33,458
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Price on request
33,458
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|
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Littelfuse Inc.
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33,384
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Price on request
33,384
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Diodes Incorporated
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33,308
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Price on request
33,308
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STMicroelectronics
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33,186
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Price on request
33,186
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STMicroelectronics
<p>The ESDA25P35-1U1M is a unidirectional Zener TVS diode from STMicroelectronics designed for general purpose overvoltage protection. It features a reverse standoff voltage of 22V and a clamping voltage of 41V, ensuring reliable protection against transient voltage spikes.</p><p> </p><p>With a peak pulse power rating of 1.4kW (1400W) and a peak pulse current capability of 35A (8/20µs waveform), this device can handle significant surge events. The operating temperature range spans -55°C to 150°C (junction), making it suitable for harsh environments.</p><p> </p><p>The device is housed in a 2-UDFN (1610) surface mount package, which is ideal for space-constrained designs. It is RoHS3 compliant, REACH unaffected, and has an MSL rating of 1 (unlimited). This TVS diode is a robust choice for protecting sensitive electronics from ESD and other transient disturbances.</p>
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33,081
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Price on request
33,081
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On Semiconductor
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33,020
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Price on request
33,020
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STMicroelectronics
<p>The STMicroelectronics ESDA7P120-1U1M is a unidirectional Zener TVS diode designed for general-purpose circuit protection. It has a reverse standoff voltage of 5.5V and a clamping voltage of 11.5V, protecting sensitive electronics from voltage transients.</p><p> </p><p>With a peak pulse power rating of 1.4kW and a peak pulse current of 120A (8/20µs), this diode can handle high-energy surges. The device operates over a junction temperature range of -55°C to 150°C.</p><p> </p><p>Housed in a 2-UDFN surface-mount package with a 1610 supplier device package, it is suitable for compact PCB designs. The component is RoHS3 compliant and REACH unaffected, meeting current environmental standards.</p>
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33,020
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Price on request
33,020
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Bel Fuse
<p>The Bel Fuse 0ZCJ0075AF2E is a surface mount polymeric PTC resettable fuse from the 0ZCJ series. It is designed for overcurrent protection with a hold current of 750 mA and a trip current of 1.5 A at 23°C. The device can handle a maximum voltage of 16 VDC and a maximum fault current of 100 A, making it suitable for a range of power applications.</p><p> </p><p>Key electrical characteristics include an initial resistance of 90 mΩ (minimum) and a post-trip resistance of 290 mΩ (maximum). Typical power dissipation is 0.6 W. The time to trip is 200 ms at 8 A, providing fast response to overcurrent events. The operating temperature range is -40°C to 85°C, supporting use in harsh environments.</p><p> </p><p>The fuse is packaged in a 1206 (3216 metric) concave chip with dimensions of 3.25 mm x 1.65 mm x 1.25 mm, suitable for automated surface mount assembly. It is AEC-Q200 compliant for automotive applications and is RoHS, REACH, lead-free, and halogen-free compliant as stated in the datasheet. The series also carries TUV and UL agency approvals.</p>
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33,000
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Price on request
33,000
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Kyocera AVX
<p>The Kyocera AVX CAN0001DP is a zinc oxide (ZnO) based multilayer ceramic varistor (MLCV) designed for communication bus protection such as CAN Bus and FlexRay. It offers non-linear voltage-current characteristics with bi-directional clamping and integrated EMI/RFI attenuation.</p><p> </p><p>Key electrical specifications include a typical varistor voltage of 120V at 1mA DC, a clamping voltage of 225V typical at 1A (8x20µs), and a maximum peak current of 4A (8x20µs). The device handles up to 0.015J of energy (10x1000µs) and features low leakage current of 2µA maximum at working voltage. Capacitance is 22pF maximum at 1MHz, minimizing signal distortion on high-speed data lines.</p><p> </p><p>The varistor is housed in a standard 0603 (1608 Metric) surface mount package with Ni/Sn plated terminations. It operates over a wide temperature range of -55°C to 125°C and is supplied on 7-inch reels with 1000 pieces per reel. The part is AEC-Q200 qualified for automotive applications.</p>
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33,000
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Price on request
33,000
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Littelfuse Inc.
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33,000
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Price on request
33,000
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Bel Fuse
<p>The Bel Fuse 0679L2000-01 is a 2A, 125VAC/VDC fast blow (quick acting) surface mount fuse in a 2410 SMD package. It features a ceramic body with silver/gold/palladium plated caps. The fuse has a breaking capacity of 50A AC and 300A DC, with a typical cold resistance of 0.035 ohms and a voltage drop of 0.24V at rated current. Operating temperature range is -55°C to 125°C. It is AEC-Q200 and cURus approved, RoHS compliant, halogen free, and MSL 1. Applications include notebook computers, LCD monitors, industrial equipment, medical equipment, and power supplies. The fuse is supplied in tape and reel for automated assembly.</p>
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33,000
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Price on request
33,000
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STMicroelectronics
<p>The STMicroelectronics ESDA6V1LY is a Zener-type transient voltage suppression (TVS) diode designed for protecting sensitive electronics from voltage transients. It features a reverse standoff voltage of 5.2V and a clamping voltage of 16V at a peak pulse current of 18A (8/20µs waveform). With a peak pulse power rating of 300W, this device can absorb substantial surge energy.</p><p> </p><p>This component integrates two unidirectional channels in a single SOT-23-3 surface-mount package. It is intended for general ESD protection and surge suppression in a variety of circuits. The operating temperature range spans -40°C to 150°C (junction), suitable for harsh environments.</p><p> </p><p>The ESDA6V1LY is qualified for automotive applications, meeting AEC-Q requirements. Its small footprint and low profile make it ideal for space-constrained designs. The device is RoHS3 compliant and REACH unaffected.</p>
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33,000
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Price on request
33,000
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Renesas
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33,000
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Price on request
33,000
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