Circuit Protection

<p>The 1812L150/12DR is a Polymeric PTC resettable fuse from Littelfuse's 1812L Series. It provides overcurrent protection with a hold current of 1.5 A and a trip current of 3 A. The device is rated for a maximum voltage of 12 V and can handle up to 100 A fault current. Typical power dissipation is 0.8 W. The time to trip at 8 A is 500 ms maximum. The device has a minimum resistance of 0.04 Ω and a maximum post-trip resistance of 0.11 Ω. It operates over a temperature range of -40°C to 85°C. The component is housed in a 1812 (4532 Metric) concave surface mount package with dimensions 4.55 mm x 3.24 mm x 1.25 mm. It is RoHS compliant and halogen-free. Applications include USB peripherals, PCI cards, and game console port protection.</p>

<p>The 1.5SMC300A-M3/9AT is a unidirectional transient voltage suppressor (TVS) diode from Vishay's 1.5SMC series. It features a reverse standoff voltage of 256V and a clamping voltage of 414V at a peak pulse current of 3.6A. With a peak pulse power rating of 1500W (10/1000μs waveform), it provides robust protection against voltage transients.</p><p>&nbsp;</p><p>This device is designed for general purpose transient protection in sensitive electronics, including consumer, computer, industrial, and telecommunication applications. It offers very fast response time, low incremental surge resistance, and a glass passivated chip junction for reliability.</p><p>&nbsp;</p><p>The 1.5SMC300A-M3/9AT is housed in a surface mount DO-214AB (SMC) package with matte tin plated terminals. It operates over a temperature range of -65°C to 150°C and has a maximum junction temperature of 150°C. The device is RoHS3 compliant and halogen-free, with an MSL rating of 1 (unlimited).</p>

<p>The ESD7951ST5G is an ESD protection diode manufactured by On Semiconductor, designed to protect sensitive electronic components from electrostatic discharge and transient voltage events. It features an ultra-low typical capacitance of 0.5pF at 1MHz, making it suitable for high-frequency signal lines.</p><p>&nbsp;</p><p>The device has a reverse stand-off voltage of 5V and a clamping voltage of 12.9V at a peak pulse current of 1A (8/20µs waveform). It provides IEC 61000-4-2 Level 4 ESD protection with ±8kV contact and ±15kV air discharge ratings. The response time is typically less than 1.0ns.</p><p>&nbsp;</p><p>The ESD7951ST5G is offered in a compact SOD-923 surface mount package with body dimensions of 1.00mm x 0.60mm x 0.4mm. It is RoHS3 compliant, lead-free (Pb-Free), and meets MSL 1 requirements. The device is qualified for a maximum reflow temperature of 260°C.</p><p>&nbsp;</p><p>With its low capacitance and fast response, the ESD7951ST5G is ideal for ESD protection in USB 2.0 high-speed interfaces, antenna lines, and other high-frequency designs where board space is limited.</p>

<p>The ESDS304DBVR is a Zener-based TVS diode manufactured by Texas Instruments. It provides electrostatic discharge (ESD) protection for general-purpose applications. The device offers a typical reverse standoff voltage of 3V and can handle peak pulse currents up to 12A under 8/20µs waveform conditions, with a peak pulse power dissipation of 85W. This component integrates four bidirectional channels, making it suitable for protecting multiple data lines. The low capacitance of 2.3pF at 1MHz minimizes signal degradation in high-speed circuits. The ESDS304DBVR operates over a wide temperature range of -40°C to 125°C. It is packaged in a surface-mount SC-74A (SOT-753) case, with a supplier device package of SOT-23-5, allowing for compact PCB layouts.</p>

<p>The ESDA14V2SC5 is a transient voltage suppression (TVS) diode from STMicroelectronics designed for general purpose circuit protection. It has a reverse standoff voltage (VRWM) of 12V and can handle peak pulse power up to 300W. The device integrates four unidirectional channels in a single package, making it suitable for protecting multiple signal or power lines.</p><p>&nbsp;</p><p>This TVS diode uses Zener clamping technology to clamp transient overvoltages to safe levels. The operating temperature range spans -40°C to 125°C, allowing use in a wide variety of environments. Power line protection is not supported, so it is intended for signal line applications.</p><p>&nbsp;</p><p>The component is housed in a surface-mount SC-74A / SOT-753 package with a supplier device package of SOT-23-5. It is RoHS3 compliant and has an MSL rating of 1 (unlimited) for moisture sensitivity.</p>

<p>The BZW04-376B from Taiwan Semiconductor is a 400W bidirectional Transil TVS diode designed for overvoltage protection. It features a stand-off voltage of 376V and a breakdown voltage of 418V (minimum). The clamping voltage is 603V at 670mA peak pulse current (10/1000µs waveform). The device offers a low clamping factor and fast response time, making it suitable for protecting sensitive electronics from transient overvoltages. It is UL recognized. The diode is housed in a DO-204AL (DO-41) axial-lead through-hole package, suitable for PCB mounting. Operating temperature range is -55°C to 175°C junction temperature. The device is bidirectional, providing protection in both polarities, and features a typical capacitance of 120pF.</p>

<p>The CM1214A-01SO is a single channel ESD protector from onsemi designed for protecting bipolar signal lines against electrostatic discharge. It features a reverse standoff voltage of 7V and a typical clamping voltage of 11.3V at 1A peak pulse current (8/20µs waveform). The device provides ±8kV contact discharge protection per IEC 61000-4-2.</p><p>&nbsp;</p><p>With a typical capacitance of less than 1pF, this protector is suitable for high-speed interfaces such as Ethernet and RF antenna circuits. It operates over a temperature range of -40°C to 85°C and is housed in a surface mount SOT-23-3 package (also known as TO-236-3 or SC-59).</p><p>&nbsp;</p><p>The CM1214A-01SO is Pb-Free and RoHS compliant. It is supplied in tape and reel packaging with a standard quantity of 3000 pieces per reel.</p>

<p>The CDNBS08-PLC03-6 from Bourns is a steering diode and transient voltage suppressor (TVS) array combination device. It provides surge and ESD protection for two unidirectional lines in a compact 8-lead SOIC package. Key electrical specifications include a working peak voltage of 6V, a minimum breakdown voltage of 6.8V at 1mA, and a maximum clamping voltage of 20V at 100A (8/20µs waveform). The device can handle peak pulse power up to 2000W (8/20µs) and peak pulse current of 100A.</p><p>&nbsp;</p><p>For ESD protection, the CDNBS08-PLC03-6 meets IEC 61000-4-2 standards with contact discharge protection of ±8kV and air discharge protection of ±15kV, with a maximum rating of ±30kV. It also provides EFT protection of 40A (5/50ns per IEC 61000-4-4) and surge protection per IEC 61000-4-5 with line-to-ground capability of 95A and line-to-line of 48A (8/20µs). Additionally, it meets Telcordia GR1089 intra-building surge requirements with 100A (2/10µs).</p><p>&nbsp;</p><p>The device is housed in an 8-SOIC surface mount package with gull wing leads, suitable for automated assembly. It operates over a junction temperature range of -55°C to 150°C. The CDNBS08-PLC03-6 is RoHS3 compliant and lead-free as standard. Typical applications include Ethernet 10/100 Base T, T1/E1 and T3/E3 line cards, ISDN interfaces, and xDSL equipment.</p>

<p>The ESDA14V2SC6 is a transient voltage suppression (TVS) diode from STMicroelectronics, designed for general purpose circuit protection. It features a reverse standoff voltage of 12V and a peak pulse power rating of 300W, providing robust protection against voltage transients. This device integrates 4 unidirectional channels in a single SOT-23-6 package, allowing for efficient protection of multiple lines in a compact footprint.</p><p>&nbsp;</p><p>With a surface-mount SOT-23-6 package, the ESDA14V2SC6 is suitable for automated assembly and space-constrained designs. It operates over a wide temperature range from -40°C to 125°C, ensuring reliability in harsh environments. The TVS diode is RoHS3 compliant and REACH unaffected, meeting current environmental standards.</p><p>&nbsp;</p><p>Typical applications include general purpose transient suppression in consumer electronics, portable devices, and industrial controls. The ESDA14V2SC6 is ideal for protecting sensitive ICs and data lines from electrostatic discharge (ESD) and other transient events.</p>

<p>The ESDA6V1-4BC6 is a 4-channel bidirectional TVS diode array from STMicroelectronics, designed using Zener technology. It provides transient voltage suppression for general purpose applications. The device has a reverse standoff voltage of 3 V and can handle peak pulse power up to 80 W. It operates over a temperature range of -40 to 125 °C. The ESDA6V1-4BC6 is housed in a SOT-23-6 surface mount package, making it suitable for compact PCB designs. It is RoHS3 compliant, REACH unaffected, and has an MSL rating of Level 1 (unlimited). The device does not include power line protection. With four bidirectional channels, it offers efficient ESD protection for multiple lines in a single package.</p>

<p>The ESDV5-1BF4 is a single-channel TVS diode from STMicroelectronics designed for general purpose ESD protection. It has a reverse standoff voltage of 5.5V and a clamping voltage of 16.3V at a peak pulse current of 1.7A. The device can handle 20W of peak pulse power.</p><p>&nbsp;</p><p>This diode is unidirectional and offers a low capacitance of 7pF at 1MHz, making it suitable for high-speed signal line protection. It operates over a wide temperature range from -55°C to 150°C.</p><p>&nbsp;</p><p>The ESDV5-1BF4 is housed in a compact 0201 (0603 metric) surface mount package with supplier device package ST0201. It is RoHS3 compliant and has an MSL rating of 1 (unlimited).</p>

<p>The ESDM1131MX4T5G is a single-channel bidirectional TVS diode designed to protect sensitive electronic components from electrostatic discharge (ESD).</p><p>&nbsp;</p><p>This device offers ±16kV contact and air discharge ESD protection per IEC 61000-4-2 Level 4, with a low typical clamping voltage of 5.6V at 4A (8x20µs pulse). It features a reverse standoff voltage of 3.3V, breakdown voltage range of 4.0V to 6.0V (at 1mA), and very low reverse leakage current of 0.1µA.</p><p>&nbsp;</p><p>With a typical capacitance of 4pF (at 0V, 1MHz), it is suitable for high-speed data line protection in portable electronics. The device is housed in an ultra-small 01005 (0402 metric) 2-X4DFN package measuring only 0.445mm x 0.240mm, making it ideal for space-constrained applications.</p><p>&nbsp;</p><p>The ESDM1131MX4T5G is Pb-free, halogen-free/BFR-free, and RoHS3 compliant. It is supplied in tape and reel packaging with a standard quantity of 10,000 pieces per reel.</p>