2N6400

Scrs Overview

The onsemi 2N6400 is a Silicon Controlled Rectifier (SCR) from the 2N6400 Series, designed for half-wave AC control applications. It features a peak repetitive off-state voltage of 600 V and an on-state RMS current rating of 16 A at a case temperature of 100°C. The device operates within a junction temperature range of -40°C to +125°C and utilizes a TO-220AB package with a thermal resistance of 1.5 °C/W. Key electrical characteristics include a maximum gate trigger current of 60 mA and a holding current of up to 60 mA.

Scrs Feature Summary

• Glass passivated junctions with center gate geometry for enhanced parameter uniformity and stability
• Small, rugged Thermowatt construction providing low thermal resistance and high heat dissipation
• Reverse blocking thyristor design suitable for solid-state switching

Scrs Applications

• Motor controls
• Heating controls
• Power supplies

Scrs Procurement Notes

Verify the specific part number against official datasheets to confirm ratings and pinout compatibility. Ensure that the operating conditions, such as case temperature and conduction angles, align with the manufacturer's specified limits. Confirm packaging details and ordering information directly with authorized distributors or the manufacturer to ensure authenticity and correct specifications.

Scrs Selection Notes

Select the 2N6400 when a 600 V reverse blocking capability and 16 A RMS current handling are required in a TO-220AB package. Consider the thermal resistance and derating curves for average current calculations based on the expected case temperature and conduction angle. Verify that the gate trigger requirements fit within the driving circuit capabilities.

Scrs Part Context

The 2N6400 belongs to the 2N6400 Series of preferred devices from onsemi. This series includes variants with blocking voltages ranging from 50 V to 800 V, all sharing similar rugged construction and thermal characteristics. These silicon gate-controlled thyristors are intended for general-purpose half-wave AC control applications where reliability and durability are essential.

Scrs Replacement Considerations

Cross-reference with other 2N6400 Series parts (e.g., 2N6401–2N6405) if different voltage ratings are needed. Verify equivalent SCR models from other manufacturers by matching key parameters: 600 V blocking voltage, 16 A RMS current, TO-220AB package, and compatible gate trigger characteristics.

Scrs FAQ

What is the maximum non-repetitive surge current for the 2N6400?

The peak non-repetitive surge current (ITSM) is 160 A for a 1/2 cycle sine wave at 60 Hz with an initial junction temperature of 90°C.

How does the holding current vary with temperature?

The holding current (IH) has a maximum value of 60 mA at a case temperature of -40°C and 25°C, with typical values around 18 mA at 25°C.

What is the critical rate-of-rise of off-state voltage (dv/dt)?

The critical rate-of-rise of off-state voltage is typically 50 V/μs at a junction temperature of +125°C.