VS-VSKL105/04

SCRs - Modules Overview

The VS-VSKL105/04 is a thyristor/diode module from the VSKL105 series, rated for 105 A average on-state current and 235 A RMS continuous current. It features a maximum repetitive peak reverse voltage of 400 V and supports non-repetitive surge currents up to 2094 A at 60 Hz. The device utilizes an exposed direct bonded copper substrate within an AAP Gen 7 (TO-240AA) package, providing a low thermal resistance of 0.22 °C/W per leg. Designed for industrial applications, it operates across a junction temperature range of -40 °C to +130 °C.

SCRs - Modules Feature Summary

• Utilizes exposed direct bonded copper substrate for excellent thermal performance
• Features UL approval file E78996 for industrial level qualification
• Designed with advanced compact simple package solution and minimized internal interfaces

SCRs - Modules Applications

• High voltage regulated power supplies
• Lighting circuits
• Temperature control circuits
• Motor speed control circuits
• UPS systems and battery chargers

SCRs - Modules Procurement Notes

Verify the specific circuit configuration code 'L' corresponds to the required SCR/diode doubler circuit with negative control before procurement. Confirm that the mounting torque specifications are strictly adhered to during installation, as rechecking after three hours is recommended to allow for compound spread. Ensure the heatsink interface meets the flatness and smoothness requirements to maintain the specified thermal resistance values.

SCRs - Modules Selection Notes

Select this component when a combined thyristor and diode configuration in a doubler circuit topology is required. The 400 V rating defines the maximum blocking capability suitable for lower voltage high-power applications. Evaluate the thermal management strategy based on the 0.22 °C/W junction-to-case resistance and the specific conduction angle expected in the application to ensure the junction temperature remains within the 130 °C limit.

SCRs - Modules Part Context

This module belongs to the VSKL105 series, which includes variants with different voltage codes and circuit configurations such as T, H, L, and N. The 'L' designation specifically indicates an SCR/diode doubler circuit with negative control. All modules in this series share the same 105 A current rating and utilize the standardized AAP Gen 7 package format for consistent mechanical integration.

SCRs - Modules Replacement Considerations

Direct replacements must match the 105 A current rating, 400 V blocking voltage, and the specific SCR/diode doubler circuit configuration. Verify compatibility with the TO-240AA footprint and ensure the replacement device offers equivalent thermal resistance characteristics to maintain system cooling efficiency.

SCRs - Modules FAQ

What is the maximum gate trigger voltage required at room temperature?

The maximum gate voltage required to trigger the device at a junction temperature of 25 °C is 2.5 V.

How does the thermal resistance change with different conduction angles?

The incremental thermal resistance increases as the conduction angle decreases; for example, it rises from 0.04 °C/W at 180° conduction to 0.125 °C/W at 30° conduction for sine half-wave operation.

What is the maximum critical rate of rise of off-state voltage?

The maximum critical rate of rise of off-state voltage (dV/dt) is 1000 V/μs when measured at a junction temperature of 130 °C.