Littelfuse SIDACtor Protection Thyristor 400V 500A 2.2mA 35A DO-214AA Package P0640SCLRP

The Littelfuse P0640SCLRP is a SIDACtor protection thyristor designed for safeguarding telecommunications and data transmission equipment against damaging voltage transients. Featuring a repetitive peak reverse voltage (VDRM) rating of 400V and a surge current capacity of 35A, this component is optimized for use in high-reliability environments where rapid, repeatable protection from overvoltage and lightning-induced surges is crucial.

The device is housed in a compact surface-mount DO-214AA package, making it ideal for high-density PCB layouts and automated manufacturing processes. Its low maximum gate trigger current of 2.2mA and peak on-state voltage of 4V enable efficient circuit protection with minimal power loss, while the rated average on-state current of 500A ensures the device can withstand significant inrush or fault conditions without permanent degradation. A maximum holding current of 150mA and pin count of 2 facilitate simple and secure electrical integration.

The P0640SCLRP operates over a wide temperature range from -40°C to 150°C, allowing it to function reliably in harsh industrial, outdoor, and telecom cabinet environments. The device is compliant with multiple international standards - including GR 1089, IEC 61000-4-5, ITU K.20/21/45, and RoHS - underscoring its suitability for mission-critical data transmission nodes, line cards, fax machines, and customer premise equipment (CPE).

Bi-directional protection means that all electrical parameters and surge ratings apply equally regardless of polarity, making the P0640SCLRP effective for protecting both sides of a communication interface. Off-state leakage currents are low (5μA typical at 1 MHz and 2V bias), allowing seamless operation in sensitive circuit designs. The product is engineered for long-term durability, with surge ratings guaranteed for the life of the device.

Typical application scenarios include industrial automation, structured cabling, telecommunication switching infrastructure, networking equipment, and remote sensors. Its combination of compact form factor, robust ratings, and compliance guarantees have made it a popular choice among design engineers prioritizing long-term equipment reliability.

Explore more Littelfuse SIDACtor protection devices and related industrial thyristor solutions in the EnvMart catalog for comprehensive circuit protection and surge suppression needs.

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