TN1605H-8T

Scrs Overview

The TN1605H-8T is a high-temperature Silicon Controlled Rectifier (SCR) manufactured by STMicroelectronics, housed in a TO-220AB package. It supports an RMS on-state current of 16 A and features a repetitive peak off-state voltage of 800 V. The device operates with a maximum junction temperature of 150 °C and offers a non-repetitive peak surge current of 177 A for 8.3 ms pulses. Key electrical characteristics include a gate triggering current range of 5 to 8 mA, a static dV/dt immunity of 500 V/µs at 150 °C, and a turn-on current rise rate of 100 A/µs.

Scrs Feature Summary

• High thermal performance enabling operation up to 150 °C junction temperature
• Robust noise immunity with high static dV/dt capability
• Tight gate triggering current spread for consistent control circuit design
• Halogen-free molding and lead-free plating compliant with ECOPACK2 standards

Scrs Applications

• Inrush current limiting circuits in AC/DC converters
• General purpose AC line load switching
• Heating resistor control and solid state relays
• Crowbar and power bus discharge circuits

Scrs Procurement Notes

Verify the specific ordering code TN1605H-8T against the latest official datasheet DS14129 Rev 1 before procurement. Confirm that the required delivery mode matches the standard tube packaging containing 50 units per base quantity. Ensure compatibility with the TO-220AB footprint and validate thermal management requirements for the 150 °C operating limit during system integration.

Scrs Selection Notes

Select this component when applications demand high-temperature resilience up to 150 °C combined with robust surge handling capabilities. The tight gate triggering current spread simplifies driver design compared to wider tolerance alternatives. Consider the TO-220AB package for through-hole mounting solutions requiring reliable performance in industrial drives or power tools under demanding thermal conditions.

Scrs Part Context

This SCR belongs to the H-series designed for high-temperature switching control. It complements other ST thyristors by offering a balance of high thermal endurance and compact control circuit requirements. The device is part of a broader portfolio aimed at replacing traditional mechanical switches in heavy-duty AC applications where reliability and size reduction are critical.

Scrs Replacement Considerations

Direct substitutes within the same series include variants with different voltage ratings such as TN1605H-6G or TN1605H-8G, though package differences exist between TO-220AB and D2PAK formats. Verify pinout compatibility and thermal resistance parameters when cross-referencing with other manufacturers' high-temperature SCRs.

Scrs FAQ

What is the maximum junction temperature for the TN1605H-8T?

The maximum operating junction temperature is 150 °C.

Does the TN1605H-8T meet environmental compliance standards?

Yes, it features halogen-free molding and lead-free plating, complying with ECOPACK2 specifications.

What is the static dV/dt immunity rating at high temperatures?

The device maintains a minimum static dV/dt immunity of 500 V/µs at a junction temperature of 150 °C.