USHA BU208A Datasheet

HORIZONTAL DEFLECTION TRANSISTOR

NPN BU208A, 5A 700V

Technical Data

…designed for use in televisions.

F Collector-Emitter Voltage-VCES=1500Vdc
F Low Thermal Resistance 1¼C/W increased Reliability
F TO-3 Package
F Fast Switching ---400ns Typical Fall Time

MAXIMUM RATINGS

Rating Symbol Value Unit

Collector- Emitter Voltage V
Collector- Emitter Voltage V

Emitter Base Voltage V
Collector Current – Continuous
_Peak(1)
Base Current – continuous

-- Peak(1)

Total Power Dissipation @

CEO(SUS)

I

IBM

PD 12.5

TC = 95°C

Derate above 95°C
Operating and Storage junction

Temperature Range

THERMAL CHARACTERISTICS

Characteristic Symbol Max. Unit

Thermal resistance junction to case R

Tj,Tstg -65 to +115

I

CM

I

CES

EB

C

B

thjc

700 Vdc

1500 Vdc

5 Vdc
5

7.5
4

3.5

0.625

1.6 °C/W

Adc
Adc

Watts

W/°C

°C

ELECTRICAL CHARACTERISTICS :[ Tc = 25 °C unless otherwise noted ]

CEO(sus)

Characteristic Symbol Min Typ Max Unit

* OFF CHARACTERISTICS :

Collector–Emitter Sustaining Voltage (1)
[ Ic =100 mAdc, IB = 0 ]
Collector Cutoff Current
[ VCE = 1500 Vdc, V

BE

= 0 ]

V

I

CES

700 Vdc

1 mAdc

Emitter Base Voltage
[ IE = 10mA, Ic = 0 ]

* ON CHARACTERISTICS (1):

DC Current Gain
[ Ic = 4.5 Adc , VCE = 5.0 Vdc ]

Collector-Emitter Saturation Voltage
[ Ic = 4.5 Adc , IB = 2Adc )

Base-Emitter Saturation Voltage
[ Ic = 4.5 Adc , IB = 2Adc ]

DYNAMIC CHARACTERISTICS:

Current Gain – Bandwidth Product
[ Ic = 0.1Adc,VCE=5 Vdc, ftest=1.0 MHz ]
Output Capacitance
(VCB=10Vdc,IE=0,f=1MHz)

SWITCHING CHARACTERISTICS

Fall Time
(IC=2Adc,IB1=1Adc,LB=25µH)
Storage Time
(IC=4.5Adc,IB1=1.8Adc,LB=10µH

BV

h

V

CE(sat)

V

BE(sat)

C

FE

f

OB

tf

ts

EBO

T

5

Vdc

2.25

1 Vdc

1.5 Vdc

--- 4 -- MHz

-- 125 -- pF

--- 0.4 --- µs

8 µs

(1) Pulse Test : Pulse Width =300µs , Duty Cycle < 2.0%