SJ6032R2TP

Overview

The Littelfuse SJ6032R2TP is a high-temperature silicon-controlled rectifier (SCR) from the SJxx32xx series, designed for uni-directional switching applications. It features a TO-220AB non-isolated mounting tab package with a common center lead. The device supports an RMS on-state current of 32 A at a case temperature of 115°C and offers voltage ratings of either 400 V or 600 V. It utilizes sensitive gate technology with a maximum gate trigger current of 15 mA and a gate trigger voltage of 1.5 V. The component operates within a junction temperature range of -40°C to 150°C and withstands peak non-repetitive surge currents up to 380 A at 60 Hz.

Feature Summary

• High junction temperature capability for demanding thermal environments
• Sensitive gate design allowing direct interfacing with microprocessors
• Robust surge current handling for transient protection
• Halogen-free and RoHS-compliant construction

Applications

• Phase control in heating systems
• Motor speed controls
• AC rectifiers and voltage regulators
• Industrial power tools
• Exercise equipment and commercial appliances

Procurement Notes

Verify the specific voltage rating required for the application, as the base part number covers both 400 V and 600 V variants. Confirm that the TO-220AB non-isolated package aligns with the circuit isolation requirements. Ensure the gate sensitivity matches the driving circuit capabilities, specifically the 15 mA trigger threshold. Check for compliance with halogen-free standards if mandated by project specifications.

Selection Notes

Select this component when high thermal stability and moderate current switching are required in AC power control circuits. The non-isolated tab requires careful consideration regarding electrical isolation from heatsinks compared to isolated variants. Verify that the operating junction temperature will not exceed 150°C under worst-case load conditions. Ensure the gate drive circuit can supply sufficient current to reliably trigger the 15 mA threshold across the full temperature range.

Part Context

This SCR belongs to the SJxx32xx family of 32 Amp standard high-temperature thyristors manufactured by Littelfuse. The series provides options for different voltage ratings and gate sensitivities. The 'R' designation indicates the TO-220AB non-isolated package type, while '2' denotes the 15 mA gate sensitivity level. This family is engineered for durability in industrial and consumer appliance environments.

Replacement Considerations

Direct replacements within the same series include SJ6032L2TP (isolated package) or SJ6032N2TP (surface mount). For identical non-isolated performance, verify availability of other manufacturers' 32 A, 600 V SCRs with 15 mA gate sensitivity in TO-220 packages. Ensure thermal resistance and physical dimensions match the existing footprint.

FAQ

What is the maximum gate trigger current for the SJ6032R2TP?

The maximum gate trigger current (IGT) is 15 mA.

Is the SJ6032R2TP electrically isolated from the mounting tab?

No, the 'R' package designation indicates a non-isolated mounting tab that is common with the center lead.

What is the peak non-repetitive surge current rating at 60 Hz?

The peak non-repetitive surge current (ITSM) is 380 A for a single half-cycle at 60 Hz with an initial junction temperature of 25°C.