2N6071BT

Overview

The onsemi 2N6071BT is a silicon bidirectional thyristor (Triac) from the 2N6071A/B Series, designed for full-wave AC control applications. It features sensitive gate triggering compatible with TTL, HTL, CMOS, and operational amplifier logic functions. The device operates in four quadrants with peak repetitive off-state voltages up to 600 V and an on-state RMS current of 4.0 A at TC = 85°C. It utilizes a TO-225 package (CASE 077 STYLE 5) with thermopad construction for low thermal resistance (RθJC = 3.5 °C/W). The 'T' suffix indicates tube packaging, while 'B' denotes specific gate trigger current characteristics optimized for certain logic families.

Feature Summary

• Sensitive gate design enables direct coupling to various integrated circuit logic functions including TTL, HTL, and CMOS.
• Four-mode gate triggering capability ensures reliable switching across all operating quadrants.
• Diffused and glass passivated junctions provide enhanced parameter uniformity and stability.
• Thermopad construction offers high heat dissipation and durability for rugged operation.

Applications

• Light dimmers
• Motor controls
• Heating controls
• Power supplies

Procurement Notes

Verify the ordering suffix carefully. The 'T' suffix specifies tube packaging, distinct from bulk box or tape-and-reel options. Confirm the 'B' variant matches the required gate trigger current specifications for the target logic interface. Ensure the Pb-free status aligns with assembly requirements if applicable.

Selection Notes

Select the 2N6071BT when sensitive gate triggering is required for direct interfacing with digital logic circuits. The B-series variant offers lower gate trigger currents compared to the A-series, making it suitable for CMOS buffer and NAND configurations. Evaluate thermal management needs based on the 4.0 A RMS rating and junction-to-case thermal resistance.

Part Context

This component belongs to the 2N6071A/B Series of sensitive gate Triacs manufactured by onsemi. The series includes variants with different blocking voltage ratings (200 V, 400 V, 600 V) and gate sensitivity levels (A and B types). The 2N6071 model specifically supports up to 200 V blocking voltage.

Replacement Considerations

Direct substitutes within the same family include 2N6071AT (tube, A-series) or 2N6071AG/2N6071BTG (Pb-free versions). Cross-family replacements require matching TO-225 package dimensions, 4.0 A RMS current rating, and compatible gate trigger characteristics.