CYStech Electronics Corp.
NPN Epitaxial Planar Transistor
Spec. No. : C853E3
Issued Date : 2004.06.15
Revised Date : 2004.07.14
Page No. : 1/5
BTN2129E3
Description
The BTN2129E3 is a NPN Darlington transistor, designed for general purpose amplifier and low speed
switching application.
Features:
•High
current capability
•Low
V
CE(SAT)
•High
current gain
•Monolithic
construction with built-in base-emitter shunt resistors
Equivalent Circuit
BTN2129E3
C
B
R1≈8k
R2≈120
Outline
TO-220AB
B:Base
C:Collector
E:Emitter
E
BCE
BTN2129E3
CYStek Product Specification