Product Summary

The bu508a is a silicon diffused power transistor. The bu508a in a fully isolated SOT199 envelope, primarilies for use in horizontal deflection circuits of colour television receivers.

Parametrics

bu508a absolute maximum ratings: (1)Collector-emitter voltage peak value: 1500 V; (2)Collector-emitter voltage (open base): 700 V; (3)Collector current (DC): 8 A; (4)Collector current peak value: 15 A; (5)Total power dissipation: 34 W; (6)Collector-emitter saturation voltage: 1.0 V; (7)Collector saturation current: 4.5 A; (8)Fall time: 0.7 μs.

Features

bu508a features: (1)Repetitive peak voltage from all three terminals to external; (2)heatsink: 2500 V; (3)Capacitance from T2 to external heatsink: 22 pF; (4)Collector cut-off current: 1.0 mA; (5)Emitter cut-off current: 10 mA; (6)Collector-emitter sustaining voltage: 700 V; (7)Collector-emitter saturation voltages: 1.0 V; (8)Base-emitter saturation voltages: 1.1 V; (9)DC current gain: 6 to 30 V.

Diagrams

bu508a block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
BU508A
BU508A

STMicroelectronics

Transistors Bipolar (BJT) NPN General Purpose

Data Sheet

Negotiable 
BU508AF
BU508AF

STMicroelectronics

Transistors Switching (Resistor Biased) NPN Power Transistor

Data Sheet

0-1: $0.67
1-10: $0.61
10-100: $0.57
100-250: $0.56
BU508AFI
BU508AFI

STMicroelectronics

Transistors Bipolar (BJT) NPN General Purpose

Data Sheet

Negotiable 
BU508AFTBTU
BU508AFTBTU

Fairchild Semiconductor

Transistors Bipolar (BJT) NPN Triple Diffused Planar Silicon

Data Sheet

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BU508AW
BU508AW

STMicroelectronics

Transistors Bipolar (BJT) Hi Vltg NPN Pwr transistor

Data Sheet

0-1: $1.69
1-10: $1.36
10-100: $1.24
100-250: $1.12
BU508AX
BU508AX

Other


Data Sheet

Negotiable