UTC BU508 AFI NPN E PI TA XI AL S ILI CO N TR AN SI ST OR
UTC UNISONIC TECHNOLOGIES CO. LTD 1
QW-R214-001,A
SILICON DIFFUSED POWER
TRANSISTOR
DESCRIPTION
The UTC BU508AFI is high voltage, high speed switching
NPN transistors in a plastic envelope, primarily for use in
horizontal deflection circuites of colour television receivers.
Features
* TV color horizontal deflection.
* With TO-3PML fully isolated package.
Absolute Maximum Rating Tc=25°C
PARAMETER SYMBOL VALUE UNIT
Collector-base voltage(VBE=0) VCBO 1500 V
Collector-emitter voltage(IB=0) VCEO 700 V
Emitter-base Voltage(IC=0) VEBO 10 V
Collector peak current Icp 15 A
Collector current Ic 8 A
Collector power dissipation Pc 60 W
Junction temperature Tj 150 °C
Storage temperature Tstg -65~150 °C
ELECTRICAL CHARACTERISTICS Tc=25°C
PARAMETER SYMBOL TEST CONDITIONS MIN MAX UNIT
Collector-base cut off current ICBO V
cE=1500V, VBE=0 2.0 mA
Emitter-base cut off current IEBO V
EB=5V, IC=0 100 uA
Collector-emitter Sustaining voltage VCEO(sus) I
C=100mA, IB=0 700 V
Emitter-base breakdown voltage VEBO I
E=10mA, IC=0 10 V
Collector-emitter saturation voltage VCE(SAT) I
C=4.5A, IB=2A 1.0 V
Base-emitter saturation voltage VBE(SAT) I
C=4.5A, IB=2A 1.3 V
Base current peak value HFE I
C=100mA, VCE=5V 6 30
TO-3PML
1. BASE
2. COLLECTOR
3. EMITTER
1 2 3
UTC BU508 AFI NPN E PI TA XI AL S ILI CO N TR AN SI ST OR
UTC UNISONIC TECHNOLOGIES CO. LTD 2
QW-R214-001,A
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.