Question 1

What is 2N4400?

Accepted Answer

NPN Bipolar Transistor 2N4400

Question 2

What are the specifications of 2N4400?

Accepted Answer

Key specifications include: Type: NPN, Collector-Emitter Voltage, max: 40V, Collector-Base Voltage, max: 60V, Emitter-Base Voltage, max: 6V, Collector Current − Continuous, max: 0.6A, Collector Dissipation: 0.625W, DC Current Gain (hfe): 50to150, Transition Frequency, min: 200MHz, Operating and Storage Junction Temperature Range: -55 to +150°C, Package: TO-92

Question 3

What are equivalent components to 2N4400?

Accepted Answer

See the component details for equivalent parts.

2N4400 Transistor — Specifications & Equivalents

Key Specifications

Equivalent & Replacement Parts

Type	NPN
Collector-Emitter Voltage, max	40V
Collector-Base Voltage, max	60V
Emitter-Base Voltage, max	6V
Collector Current − Continuous, max	0.6A
Collector Dissipation	0.625W
DC Current Gain (hfe)	50to150
Transition Frequency, min	200MHz
Operating and Storage Junction Temperature Range	-55 to +150°C
Package	TO-92