Transistor 2SD667 NPN, 1A TO-92

Transistor 2SD667 NPN, 1A TO-92

Transistors

Reference: TR2SD667

Part.No: 2SD667

€0.80

In Stock

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The 2SD667 is a medium-power NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Optimized for audio driver stages and relay switching applications requiring up to 1A collector current.

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Description
Product Details

2SD667 NPN Transistor – Reliable Audio Driver & Relay Switch

The 2SD667 is a reliable NPN transistor designed for medium-current switching and audio driver applications. With a 1A collector current rating and 80V breakdown voltage, it bridges the gap between small-signal and power transistor performance, making it ideal for relay driving, audio amplification stages, and general-purpose control circuits.

Functions & Applications

Medium Collector Current (1A): Capable of driving relays, small motors, and LED arrays without additional buffering.
Audio-Grade Performance: Well-suited for audio driver stages and preamplifier applications.
Standard TO-92 Package: Through-hole design, easy to breadboard and solder into any prototype.
Robust Voltage Rating (80V Vceo): Handles typical 12V to 48V industrial control circuits with headroom.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	80V
Max Collector Current (Ic)	1A
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Can the 2SD667 drive a 12V relay directly?
A: Yes, the 1A rating is more than sufficient for most small relays. Always include a flyback diode across the relay coil to protect the transistor from inductive voltage spikes.

Q: What is the complementary PNP transistor for the 2SD667?
A: The complementary PNP equivalent is the 2SA667, which shares the same electrical ratings and TO-92 package.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: NPN
Transistor Case Style: TO-92

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