VS-VSKL142/12PBF

SCRs - Modules Overview

The VS-VSKL142/12PBF is a silicon SCR module manufactured by Vishay General Semiconductor - Diodes Division. It features a series connection of one SCR and one diode within an INT-A-PAK (3 + 4) chassis mount package. The device has a rated repetitive off-state voltage of 1.2 kV and an average on-state current of 140 A, with a maximum RMS on-state current of 310 A. Non-repetitive surge currents are rated at 4500 A for 50 Hz and 4712 A for 60 Hz. Gate trigger parameters include a maximum voltage of 2.5 V and current of 150 mA. The holding current maximum is 200 mA. Operating junction temperature ranges from -40°C to 125°C.

SCRs - Modules Feature Summary

• Series configuration integrating a single SCR and diode for controlled rectification applications
• Robust INT-A-PAK chassis mount packaging designed for high-power thermal management
• High surge current capability supporting demanding industrial load conditions

SCRs - Modules Applications

• Industrial motor drives requiring precise speed control
• AC power regulation systems utilizing phase-angle firing
• Resistive heating control circuits in manufacturing environments

SCRs - Modules Procurement Notes

Verify the specific voltage rating requirement against the datasheet, as the model suffix indicates a 1.2 kV rating distinct from other variants in the VSKL142 series. Confirm that the INT-A-PAK mounting interface matches the mechanical design of the target application board. Ensure gate drive circuitry can supply the specified maximum trigger current of 150 mA without exceeding limits. Check RoHS3 compliance status if environmental regulations apply to the final assembly. Validate thermal resistance calculations based on the chassis mount installation method.

SCRs - Modules Selection Notes

Select this component when a combined SCR and diode solution is required for series-connected topologies. The 1.2 kV blocking voltage suits medium-voltage AC applications where lower ratings are insufficient but higher ratings are unnecessary. The 140 A average current rating supports substantial continuous loads. Consider the INT-A-PAK form factor for direct heatsink integration. Evaluate the 310 A RMS capability against potential overload scenarios during startup or fault conditions.

SCRs - Modules Part Context

This part belongs to the VS-VSK.136/142/162..PbF series of thyristor modules. It shares the same physical footprint and electrical characteristics regarding current handling with other voltage-rated variants like the VS-VSKL142/14PBF and VS-VSKL142/16PBF. The primary distinction lies in the off-state voltage rating, allowing designers to choose the appropriate breakdown voltage while maintaining consistent mechanical and thermal performance across the product family.

SCRs - Modules Replacement Considerations

Direct substitutes within the Vishay lineup include the VS-VSKL142/14PBF and VS-VSKL142/16PBF, which offer higher voltage ratings but identical current and package specifications. Cross-manufacturer replacements require matching the INT-A-PAK dimensions, 140 A average current, and 1.2 kV minimum blocking voltage. Verify that alternative parts support the same series SCR/diode internal topology.