BU426 Bourns, Inc., BU426 Datasheet - Page 3

• Manufacturer Part Number: BU426
• Description: Npn Silicon Power Transistors
• Manufacturer: Bourns, Inc.

AUGUST 1978 - REVISED SEPTEMBER 2002
Specifications are subject to change without notice.
R O D U C T
t
Duty cycle = 1%
V
V 1
p
A - B = t
B - C = t
E - F = t
D - E = t
A - C = t
D - F = t
1
= 20 µs
= 15 V, Source Impedance = 50 Ω
f
d
r
s
on
off
t p
T
I N F O R M A T I O N
PARAMETER MEASUREMENT INFORMATION
+25 V
Figure 1. Resistive-Load Switching Test Circuit
Figure 2. Resistive-Load Switching Waveforms
V 1
I B
I C
100 Ω
A
BD135
BD136
10%
B
C
10%
47 Ω
15 Ω
90%
120 Ω
82 Ω
90%
90%
D
NPN SILICON POWER TRANSISTORS
10%
680
680
E
µ
µ
F
F
I B(on)
I B(off)
F
dI
dt
100 Ω
B
TUT
≥ 2 A/µs
100
0%
0%
µ
F
BU426, BU426A
V cc = 250 V
3