1
Motorola Bipolar Power Transistor Device Data
The BUX85 is designed for high voltage, high speed power switching applications
like converters, inverters, switching regulators, motor control systems.
SPECIFICATIONS FEATURES:
• V
CEO(sus)
450 V
• V
CES(sus)
1000 V
• Fall time = 0.3 µs (typ) at IC = 1.0 A
• V
CE(sat)
= 1.0 V (max) at IC = 1.0 A, IB = 0.2 A
Collector–Emitter Voltage
Collector–Emitter Voltage
Collector Current
— Continuous
— Peak (1)
Base Current
— Continuous
— Peak (1)
Reverse Base Current — Peak
Total Power Dissipation @ TC = 25_C
Derate above 25_C
Operating and Storage Junction Temperature Range
Thermal Resistance, Junction to Case
Thermal Resistance, Junction to Ambient
Maximum Lead Temperature for Soldering Purpose:
1/8″ from Case for 5 Seconds
_
C
(1) Pulse Test: Pulse Width = 5 ms, Duty Cycle x10%.
SWITCHMODE is a trademark of Motorola, Inc.
SEMICONDUCTOR TECHNICAL DATA
Order this document
by BUX85/D
2 AMPERES
POWER TRANSISTOR
NPN SILICON
450 VOLTS
50 WATTS
CASE 221A–06
TO–220AB
REV 7
BUX85
2
Motorola Bipolar Power Transistor Device Data
ELECTRICAL CHARACTERISTICS (T
C
= 25_C unless otherwise noted)
Collector–Emitter Sustaining Voltage
(IC = 100 mAdc, (L = 25 mH) See fig. 1
Collector Cutoff Current
(V
CES
= Rated Value)
(V
CES
= Rated Value, TC = 125_C)
Emitter Cutoff Current
(VEB = 5 Vdc, IC = 0)
DC Current Gain
(IC = 0.1 Adc, VCE = 5 V)
Collector–Emitter Saturation Voltage
(IC = 0.3 Adc, IB = 30 mAdc)
(IC = 1 Adc, IB = 200 mAdc)
Base–Emitter Saturation Voltage
(IC = 1 Adc, IB = 0.2 Adc)
Current–Gain — Bandwidth Product
(IC = 500 mAdc, VCE = 1 0 Vdc, f = 1 MHz)
SWITCHING CHARACTERISTICS
VCC = 250 Vdc, IC = 1 A
IB1 = 0.2 A, IB2 = 0.4 A
Same above cond. at TC = 95_C
µs
(1) Pulse Test: PW = 300 µs, Duty Cycle x2%.