USHA BU205 Datasheet
HORIZONTAL DEFLECTION TRANSISTOR
NPN BU205 2.5A 36W
Technical Data
…designed for use in large screen color deflection circuits.
F Collector-Emitter Voltage-VCEX=1500Vdc
F Glassivated Base-Collector Junction
F TO-3 Package
F Switching Times with Inductive Loads, t
MAXIMUM RATINGS
Rating Symbol Value Unit
=0.65 µs (typ)@IC=2A
f
Collector- Emitter Voltage V
Collector- Emitter Voltage V
Emitter Base Voltage V
Collector Current – Continuos
_Peak(1)
Base Current – peak(1) I
Total Power Dissipation @
I
I
CM
BM
PD 36W
TC = 25°C
Derate above 25°C
Operating and Storage junction
Temperature Range
THERMAL CHARACTERISTICS
Characteristic Symbol Max. Unit
Thermal resistance junction to case R
Tj,Tstg -65 to +115
C
CEO
CEX
EB
thjc
700 Vdc
1500 Vdc
5 Vdc
2.5
3
2.5 Adc
0.4
2.5 °C/W
Adc
Watts
W/°C
°C
ELECTRICAL CHARACTERISTICS :[ Tc = 25 °C unless otherwise noted ]
CE
=5 Vdc, ftest=1.0 MHz ]
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 ]
Emitter Base Voltage
[ IE = 10mA, Ic = 0 ]
* On Characteristics (1):
DC Current Gain
[ Ic = 2.0 Adc , VCE = 4.0 Vdc ]
Collector-Emitter Saturation Voltage
[ Ic = 2.0 Adc , IB = 1Adc )
Base-Emitter Saturation Voltage
[ Ic = 2.0 Adc , IB = 1Adc ]
V
CEO(sus)
I
BV
h
V
CE(sat)
V
BE(sat)
CES
EBO
FE
700 Vdc
1 mAdc
5
Vdc
2.25
5 Vdc
1.5 Vdc
Dynamic Characteristics :
Current Gain – Bandwidth Product
[ Ic = 0.1Adc,V
Output Capacitance
(VCB=10Vdc,IE=0,f=1MHz)
SWITCHING CHARACTERISTICS
Fall Time
(IC=2Adc,IB1=1Adc,LB=25µH)
(1) Pulse Test : Pulse Width =5ms , Duty Cycle < 10.0%
C
f
OB
tf
T
--- 4 -- MHz
-- 50 -- pF
--- 0.65 --- µs
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