TN1605H-8G

Scrs Overview

The TN1605H-8G is a high-temperature Silicon Controlled Rectifier (SCR) manufactured by STMicroelectronics, housed in a D²PAK surface-mount package. It supports an RMS on-state current of 16 A and features a repetitive peak off-state voltage rating of 800 V. The device operates at a maximum junction temperature of 150 °C with a non-repetitive peak off-state voltage of 900 V. 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 critical rate of rise of on-state current (dI/dt) 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
• ECOPACK2 compliant construction with halogen-free molding and lead-free plating

Scrs Applications

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

Scrs Procurement Notes

Verify the specific ordering code suffix when purchasing. The standard tube version is designated as TN1605H-8G, while the tape and reel variant carries the -TR suffix. Confirm that the required delivery mode matches the intended manufacturing process. Ensure the component meets ECOPACK2 environmental standards if halogen-free compliance is mandatory for the assembly.

Scrs Selection Notes

Select this component for applications requiring high thermal stability and robust surge handling in compact designs. The 800 V blocking voltage suits general AC mains switching tasks. Verify that the control circuit can accommodate the specified gate triggering current range. Ensure adequate copper surface area under the tab is provided on the PCB to maintain thermal resistance within acceptable limits during continuous operation.

Scrs Part Context

This SCR belongs to the TN series of high-temperature thyristors designed for demanding industrial environments. It utilizes a D²PAK SMD package to facilitate automated assembly and improved thermal dissipation compared to traditional through-hole options. The device integrates silicon semiconductor technology optimized for reliable switching under high transient currents and elevated temperatures.

Scrs Replacement Considerations

The TN1605H-8G-TR serves as the direct tape-and-reel equivalent for automated pick-and-place manufacturing processes. Both variants share identical electrical specifications and physical dimensions. Designers transitioning from tube packaging to reel packaging should verify stencil definitions and footprint compatibility without altering the circuit schematic.

Scrs FAQ

What is the maximum non-repetitive peak off-state voltage?

The maximum non-repetitive peak off-state voltage is 900 V.

How does the static dV/dt immunity perform at high temperatures?

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

What is the typical turn-off time at elevated temperatures?

The typical turn-off time increases to approximately 85 µs when the junction temperature reaches 150 °C.