Circuit Protection

<p>The ESDA15P60-1U1M is a unidirectional TVS diode from STMicroelectronics designed for general purpose transient voltage suppression. It features a reverse standoff voltage of 13.2V and a clamping voltage of 22.7V, providing robust protection against voltage spikes. With a peak pulse power rating of 1200W and a peak pulse current of 57A (8/20µs waveform), it can handle high-energy transients.</p><p>&nbsp;</p><p>The device is housed in a compact 2-UDFN surface mount package (supplier device package 1610), making it suitable for space-constrained applications. It operates over a wide temperature range from -55°C to 150°C (junction). The part is single-channel unidirectional and does not provide power line protection.</p><p>&nbsp;</p><p>Typical applications include general purpose circuit protection for portable electronics, communication interfaces, and I/O lines where ESD and transient suppression are required.</p>

<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>&nbsp;</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>&nbsp;</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>

<p>The Bel Fuse 0ZCF0075AF2C is a polymeric PTC resettable fuse from the 0ZCF Series, designed for overcurrent protection in a wide range of applications. It offers a hold current of 750 mA and a trip current of 1.5 A, with a maximum voltage rating of 60 Vdc and a maximum interrupt current of 100 A. Typical power dissipation is 1.5 W, and the maximum time to trip at 8 A is 300 ms. The device is housed in a compact 2920 (7351 Metric) concave SMD package, measuring 7.36 mm x 5.12 mm with a maximum thickness of 1.15 mm. It operates over a temperature range of -40°C to 85°C. This component is RoHS compliant, lead-free, halogen-free, and AEC-Q qualified, making it suitable for automotive and industrial environments.</p>

<p>The Bourns CDSOT236-T12LC is a bidirectional Transient Voltage Suppressor (TVS) diode designed for ESD, EFT, and surge protection in high-speed data ports. It features a working peak reverse voltage of 12V and a minimum breakdown voltage of 13.3V at 1mA. The device provides peak pulse power dissipation of 350W (8/20µs) and can handle peak pulse currents up to 11A. Clamping voltage is 19V at 1A and 28.3V at the peak pulse current.</p><p>&nbsp;</p><p>This TVS diode offers low typical capacitance of 3pF at 0V and 1MHz, making it suitable for high-speed signal lines without degrading signal integrity. It meets IEC 61000-4-2 ESD protection requirements with ±25kV contact discharge capability. The Zener technology ensures fast response to transient events.</p><p>&nbsp;</p><p>The device is housed in a surface-mount SOT-23-6 package with gull wing leads, compatible with standard pick-and-place equipment. It operates over a junction temperature range of -55°C to 150°C. The part is RoHS compliant and lead-free as standard.</p><p>&nbsp;</p><p>Typical applications include personal digital assistants (PDAs), mobile phones and accessories, portable electronics, and ADSL/VDSL line cards requiring robust transient protection.</p>

<p>The Littelfuse 0453004.MR is a 4A, 125VAC/VDC very fast-acting surface mount fuse from the 451/453 series. It features a Nano2 SMF package with a 2-SMD square end block form factor, designed for secondary side over-current protection in a wide range of electronic applications.</p><p>&nbsp;</p><p>This fuse offers a breaking capacity of 50A at rated voltage and a nominal melting I²t of 3.152 A²s. It operates over a temperature range of -55°C to 125°C, making it suitable for demanding environments. The part is UL listed and recognized, CSA certified, and PSE approved.</p><p>&nbsp;</p><p>The surface mount design enables automated assembly, and the compact 6.10mm x 2.69mm x 2.69mm footprint saves board space. Typical applications include notebook PCs, LCD displays, power supplies, networking equipment, and battery charging circuits.</p>

<p>The Toshiba DF3A5.6FU(TE85L,F) is a dual-channel ESD protection diode array based on Zener technology, specifically designed to protect against electrostatic discharge events. It features a reverse standoff voltage of 2.5V and a typical breakdown voltage of 5.6V (5.3V to 6.0V range at 5mA). The device offers ±30kV contact discharge ESD immunity per IEC61000-4-2, ensuring robust protection for sensitive electronic circuits.</p><p>&nbsp;</p><p>With a typical capacitance of 65pF at 1MHz, this diode array is well-suited for high-speed data lines where signal integrity must be maintained. The maximum reverse leakage current is only 1.0µA at 2.5V, minimizing power loss. Dynamic impedance is typically 40Ω maximum at 5mA, providing stable clamping behavior during ESD events.</p><p>&nbsp;</p><p>Each channel is unidirectional, and the device is rated for a maximum power dissipation of 100mW at 25°C ambient temperature. The junction temperature can reach up to 125°C, and storage temperature range is -55°C to 125°C. The ultra-compact SC-70 (SOT-323) package and surface mount design enable integration into space-constrained PCB layouts, with a typical weight of 0.006g.</p><p>&nbsp;</p><p>This product is intended solely for ESD protection and should not be used as a constant voltage reference diode. It is RoHS3 compliant and REACH unaffected, with MSL Level 1.</p>

<p>The ESDCAN04-2BWY is a bidirectional Zener TVS diode from STMicroelectronics designed to protect automotive CAN bus lines from electrostatic discharge and transient voltage events.</p><p>&nbsp;</p><p>This dual-channel device provides a reverse standoff voltage of 25.5V and clamps transients to 43V, with a peak pulse current rating of 3.7A (8/20µs waveform) and peak pulse power dissipation of 170W. The Zener clamping technology ensures fast and reliable overvoltage protection.</p><p>&nbsp;</p><p>Housed in a compact SC-70 / SOT-323 surface-mount package (SOT-323-3 supplier package), the ESDCAN04-2BWY supports a wide operating temperature range from -55°C to 175°C. It does not include power line protection and is specifically intended for automotive CAN applications.</p>

<p>The 1.5KE220A is a 1500W transient voltage suppression (TVS) diode from STMicroelectronics, designed for protecting sensitive electronics from voltage transients. It features a unidirectional Zener structure with a reverse standoff voltage of 188V and a clamping voltage of 388V at a peak pulse current of 26A (8/20µs).</p><p>&nbsp;</p><p>With a peak pulse power rating of 1500W, this diode is suitable for general purpose applications requiring robust surge protection. The device has a capacitance of 625pF at 1MHz.</p><p>&nbsp;</p><p>The 1.5KE220A is offered in a DO-201AA, DO-27, or Axial through-hole package, making it easy to integrate into printed circuit boards. It is RoHS3 compliant and has an MSL of 1 (unlimited). Suitable for use in power supplies, telecom equipment, and industrial electronics.</p>

<p>The Bourns CDNBS08-T03 is a unidirectional TVS diode array designed to protect four lines from electrostatic discharge (ESD) and surge events. It features a working peak voltage of 3 V and a minimum breakdown voltage of 3.3 V at 1 mA. The device provides a typical clamping voltage of 10.9 V at 8/20 µs and can handle a peak pulse current of 43 A under the same waveform. Peak pulse power is rated at 500 W for an 8/20 µs pulse.</p><p>&nbsp;</p><p>ESD protection meets IEC 61000-4-2 standards with ±30 kV contact and air discharge ratings. Maximum leakage current at working voltage is 125 µA, and maximum capacitance is 450 pF at 0 V and 1 MHz. The device operates over a junction temperature range of -55°C to +150°C.</p><p>&nbsp;</p><p>The CDNBS08-T03 is housed in an 8-SOIC surface-mount package with gull wing leads, suitable for standard pick-and-place assembly. It is RoHS3 compliant and has MSL 1 (unlimited) moisture sensitivity. Typical applications include audio/video inputs, RS-232/422/423 data lines, portable electronics, and medical sensors.</p>

<p>The Würth Elektronik 82541350 is a surface-mount varistor from the WE-VS series, designed for overvoltage protection in compact electronic circuits. It is housed in a standard 1206 (3216 metric) package with dimensions 3.2 mm x 1.6 mm and a maximum height of 1.7 mm.</p><p>&nbsp;</p><p>Key electrical specifications include a varistor voltage of 56 V (typical at 1 mA), a clamping voltage of 90 V at 1.0 A (8/20 µs), and a peak pulse current rating of 200 A (8/20 µs). The device can absorb up to 0.8 J of energy (10/1000 µs) and has a typical capacitance of 400 pF at 1 kHz.</p><p>&nbsp;</p><p>The operating temperature range is -40°C to +85°C. The component is RoHS compliant, REACH conform, halogen-free, and has an MSL rating of 1 (unlimited). It is suitable for use in general electronic equipment where transient voltage suppression is required.</p>

<p>The Littelfuse 00300210H is a fuse clip designed for use with 5mm diameter cartridge fuses. This single-circuit clip provides a 10A current rating and features a through hole mounting style with PC pin termination for secure attachment to a printed circuit board. The clip is oriented horizontally and is constructed from spring brass with a nickel contact finish for reliable electrical performance and corrosion resistance.</p><p>&nbsp;</p><p>This fuse holder type is commonly used in circuit protection applications where a replaceable cartridge fuse is needed in a PCB-mounted assembly. The clip design allows for easy fuse insertion and removal while maintaining a firm electrical connection.</p>

<p>The Littelfuse 38216300410 is a 6.3A, 250VAC rated time-lag (slow blow) fuse from the 382 Series, designed for through-hole mounting in a radial can package. It provides a breaking capacity of 100A at 250VAC, making it suitable for applications requiring inrush current tolerance.</p><p>&nbsp;</p><p>This fuse features a nominal cold resistance of 0.0076 ohms and a typical voltage drop of 65 mV at rated current. Its melting I²t is 148.84 A²s, and typical power dissipation at 1.5x rated current is 1400 mW. The operating temperature range is -40°C to 85°C.</p><p>&nbsp;</p><p>The 382 Series is internationally approved with agency certifications including CQC, cURus, KC, PSE/JET, SEMKO, and VDE. It is halogen-free, lead-free, and RoHS compliant. The compact radial can design saves PCB space and is suitable for use in battery chargers, power supplies, consumer electronics, and industrial controllers.</p>