LAB
MECHANICAL DATA
Dimensions in mm (inches)
SEME
BUX37
HIGH VOLTAGE
SILICON NPN DARLINGTON
POWER TRANSISTOR
25.15 (0.99)
26.67 (1.05)
10.67 (0.42)
11.18 (0.44)
1.52 (0.06)
3.43 (0.135)
6.35 (0.25)
9.15 (0.36)
FEATURES
• Short Switching Times
• High Reverse Voltage
38.61 (1.52)
39.12 (1.54)
0.97 (0.060)
1.10 (0.043)
29.9 (1.177)
30.4 (1.197)
16.64 (0.655)
17.15 (0.675)
1
2
3
(case)
3.84 (0.151)
4.09 (0.161)
7.92 (0.312)
12.70 (0.50)
22.23
(0.875)
max.
Applications
.
This device is especially suitable for switching–control
amplifiers, power gates, switching regulators, power-
switching circuits converters, inverters and control cir-
cuits.
TO–204AA (TO–3)
PIN 1 — Base, PIN 2 — Emitter, Case is Collector.
ABSOLUTE MAXIMUM RATINGS
(T
case
= 25°C unless otherwise stated)
V
CEO
I
C
I
CM
I
BM
P
tot
T
stg
, T
j
R
qJC
Collector – Emitter Voltage
Collector Current
Peak Collector Current
Base Peak Current
Total Power Dissipation T
case
= 100°C
Maximum Junction and Storage Temperature Range
Thermal Resistance Junction To Case
400V
15A
20A
4A
50W
–65 to 175°C
1.5°C / W
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
Document Number 6225
Issue 1
LAB
ELECTRICAL CHARACTERISTICS
(Tcase = 25°C unless otherwise stated)
Parameter
V
CEO(BR)*
I
CEO
V
CE(sat)*
h
FE*
V
F
SEME
BUX37
Test Conditions
I
B
= 0
I
B
= 0
T
C
= 125°C
I
C
= 10A
I
C
= 7A
I
C
= 15A
I
C
= -10A
I
B
= 0.15A
T
C
= -40°C
V
CE
= 1.5V
V
CE
= 5V
Min.
400
Typ.
Max.
Unit
V
ELECTRICAL CHARACTERISTICS
Collector– Emitter Breakdown Voltage I
C
= 500mA
Collector Cut–Off Current
Collector – Emitter Saturation Voltage
DC Current Gain
Diode Forward Voltage
V
CE
= 400V
250
2.0
2.0
2.9
100
20
1.8
µA
mA
V
-
V
* Pulse test t
p
= 300µs ,
δ
< 2%
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
Document Number 6225
Issue 1
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