K2400S1URP

Overview

The Littelfuse K2400S1URP is a high-voltage trigger diode (SIDAC) from the Kxxx0yU series, manufactured under the Teccor brand. It features a bidirectional switching characteristic with a breakover voltage (VBO) of 250 V and a maximum breakover current (IBO) of 10 uA. The device has a rated repetitive off-state voltage (VDRM) of 210 V and a holding current (Ih) maximum of 80 mA. It supports an RMS on-state current (It RMS) of 1 A and non-repetitive on-state currents of 16.7 A or 20 A. The component operates within a temperature range of -40 C to +150 C and utilizes a DO-214AC-2 surface-mount package.

Feature Summary

• Bidirectional high-voltage triggering for symmetric circuit protection
• Glass-passivated junction construction for ruggedness and dependability
• Surface-mount design compatible with automated assembly processes

Applications

• Surge protection in AC power line circuits
• Triggering elements for silicon-controlled rectifiers (SCRs)
• Overvoltage protection in industrial control systems

Procurement Notes

Verify the specific suffix URP against official Littelfuse documentation to confirm RoHS compliance and packaging configuration. Confirm that the DO-214AC-2 package dimensions match your PCB footprint requirements. Ensure the 250 V breakover voltage aligns with your system's surge protection thresholds before finalizing procurement orders.

Selection Notes

Select this component when a bidirectional trigger device with a 250 V breakover voltage is required. Compare the 1 A RMS current rating against your application's peak load needs. Consider the DO-214AC-2 package size relative to available board space. Verify that the operating temperature range of -40 C to +150 C meets your environmental specifications.

Part Context

This part belongs to the K2400 family of SIDACs, which are designed for high-voltage triggering applications. The K2400S1URP variant specifically uses the DO-214AC-2 surface-mount package. It is distinct from leaded versions like the K2400YH and other SMD variants such as the K2400SHURP, which may have different thermal or electrical characteristics.

Replacement Considerations

Potential substitutes include the K2400SHURP, though it exhibits a higher maximum breakover current of 500 uA and a lower maximum operating temperature of 125 C. Other family members like the K2400SRP share similar electrical profiles but differ in package type. Always verify datasheet parameters before substitution.