K1050SRP

DIACs, SIDACs Overview

The Littelfuse K1050SRP is a high-voltage trigger diode, classified as a SIDAC within the thyristor product family. It operates in the DO-214 surface-mount package and supports SMD/SMT installation styles. The device features a breakover voltage (VBO) range of 95 V to 113 V with a maximum breakover current (IBO) of 10 uA. It has a rated repetitive off-state voltage (VDRM) of 90 V and an off-state leakage current of 5 uA at VDRM. The component handles a non-repetitive on-state current of 16.7 A or 20 A and maintains an RMS on-state current (It RMS) rating of 1 A. The holding current (Ih) maximum is 150 mA, while the on-state voltage is 1.5 V. It functions within a temperature range of -40 C to +85 C.

DIACs, SIDACs Feature Summary

• Bidirectional switching capability for high-voltage triggering applications
• Surface-mount construction utilizing the DO-214 package format
• Defined breakover voltage characteristics for precise circuit activation

DIACs, SIDACs Applications

• High-voltage trigger circuits requiring reliable switching thresholds
• Protection stages in AC line-powered equipment
• Triggering elements for silicon-controlled rectifiers (SCRs)

DIACs, SIDACs Procurement Notes

Verify the specific datasheet revision and RoHS compliance status before integration. Confirm that the DO-214 footprint matches the target PCB layout. Ensure the supply chain provides original manufacturer documentation to validate the Littelfuse Teccor branding and part authenticity.

DIACs, SIDACs Selection Notes

Select this component when a bidirectional trigger device with a 95 V to 113 V breakover range is required. The 1 A RMS current rating suits moderate power applications. Verify that the 150 mA holding current meets the latch requirements of the downstream circuitry. Ensure the operating environment stays within the specified -40 C to +85 C thermal limits.

DIACs, SIDACs Part Context

This part belongs to the Kxxxzy series of high-voltage trigger diodes manufactured by Littelfuse under the Teccor brand. It serves as a specialized thyristor variant designed for robust voltage triggering in industrial and consumer electronics. The DO-214 packaging distinguishes it from through-hole alternatives like the K1050G.

DIACs, SIDACs Replacement Considerations

The K1050S1URP offers similar triggering functionality but differs in package type (DO-214AC) and maximum operating temperature (+125 C). Verify pin compatibility and thermal management requirements when substituting between these surface-mount variants.