D1691 PDF Datasheet – 2SD1691, 60V, 5A, NPN Transistor

This post explains for the transistor.

The Part Number is D1691, 2SD1691.

The package is TO-126F Type.

The function of this semiconductor is 60V, 5A, NPN Transistor.

Manufacturer: NEC


D1691 pinout


The D1691 is Low Vce(sat) transistor which has a large current capability and wide SOA. It is suitable for DC-DC converter, or driver of solenoid or motor.

A Silicon NPN Epitaxial Planar Transistor is a type of bipolar junction transistor (BJT) made from silicon, a semiconductor material. This transistor is designed for amplifying or switching electronic signals in various electronic circuits.

NPN Configuration:

1. Emitter (N): The heavily doped N-type layer, which is the source of charge carriers (electrons) in the transistor.

2. Base (P): The thin P-type layer, which controls the flow of charge carriers between the emitter and collector.

3. Collector (N): The N-type layer, which collects the charge carriers that pass through the base-emitter junction.


1. Low Collector Saturation voltage

2. Large Current

3. High Total Power Dissipation : Pt = 1.3 W

4. Complementary to 2SB1151

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D1691 transistor datasheet

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 60 V

2. Collector to Emitter Voltage: Vceo = 60 V

3. Emitter to Base Voltage: Vebo = 7.0 V

4. Collector Current: Ic = 5.0 A

5. Total Dissipation : Pc = 1.3W

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -55 ~ +150°C

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D1691 pdf nec

D1691 PDF Datasheet

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