BD545 Bourns, Inc., BD545 Datasheet - Page 2

• Manufacturer Part Number: BD545
• Description: Npn Silicon Power Transistors
• Manufacturer: Bourns, Inc.

BD545, BD545A, BD545B, BD545C
NPN SILICON POWER TRANSISTORS
electrical characteristics at 25°C case temperature
NOTES: 4. These parameters must be measured using pulse techniques, t
thermal characteristics
resistive-load-switching characteristics at 25°C case temperature
†
2
V
V
Voltage and current values shown are nominal; exact values vary slightly with transistor parameters.
(BR)CEO
R
I
CE(sat)
R
I
I
V
h
|
CEO
EBO
CES
h
h
t
t
θJC
θJA
on
off
FE
BE
fe
fe
|
5. These parameters must be measured using voltage-sensing contacts, separate from the current carrying contacts.
PARAMETER
PARAMETER
Collector-emitter
breakdown voltage
Collector-emitter
cut-off current
Collector cut-off
current
Emitter cut-off
current
Forward current
transfer ratio
Collector-emitter
saturation voltage
Base-emitter
voltage
Small signal forward
current transfer ratio
Small signal forward
current transfer ratio
Junction to case thermal resistance
Junction to free air thermal resistance
Turn-on time
Turn-off time
I
(see Note 4)
V
V
V
V
V
V
V
V
V
V
I
I
V
V
V
I
V
C
B
B
C
CE
CE
CE
CE
CE
CE
EB
CE
CE
CE
CE
CE
CE
BE(off)
= 625 mA
=
= 30 mA
= 6 A
= 40 V
= 60 V
= 80 V
= 100 V
= 30 V
= 60 V
=
=
=
=
=
= 10 V
= 10 V
= -4 V
2 A
5 V
4 V
4 V
4 V
4 V
PARAMETER
TEST CONDITIONS
I
V
V
V
V
I
I
I
I
I
I
I
I
I
I
I
I
R
TEST CONDITIONS
B
B
B
C
C
C
C
C
C
C
C
C
B(on)
BE
BE
BE
BE
L
= 0
= 0
= 0
= 0
=
=
= 10 A
=
= 10 A
= 10 A
= 0.5 A
= 0.5 A
= 5 Ω
= 0
= 0
= 0
= 0
= 0.6 A
1 A
5 A
5 A
p
= 300 µs, duty cycle ≤ 2%.
†
R O D U C T
BD545
BD545A
BD545B
BD545C
BD545
BD545A
BD545B
BD545C
BD545/545A
BD545B/545C
(see Notes 4 and 5)
(see Notes 4 and 5)
(see Notes 4 and 5)
f = 1 kHz
f = 1 MHz
I
t
B(off)
p
= 20 µs, dc ≤ 2%
= -0.6 A
Specifications are subject to change without notice.
JUNE 1973 - REVISED SEPTEMBER 2002
I N F O R M A T I O N
MIN
MIN
MIN
100
40
60
80
60
25
10
20
3
TYP
TYP
TYP
0.6
1
MAX
MAX
MAX
1.47
35.7
0.4
0.4
0.4
0.4
0.7
0.7
0.8
1.8
1
1
°C/W
°C/W
UNIT
UNIT
UNIT
mA
mA
mA
µs
µs
V
V
V