LESHAN RADIO COMPANY, LTD.
M151/2
General Purpose Transistors
MAXIMUM RATINGS
Value
Rating
Symbol
BCX17LT1
BCX18LT1
Unit
BCX19LT1
BCX20LT1
CollectorEmitter Voltage
V
CEO
45
25
Vdc
CollectorBase Voltage
V
CBO
50
30
Vdc
EmitterBase Voltage
V
EBO
5.0
5.0
Vdc
Collector Current -- Continuous
I
C
500
500
mAdc
DEVICE MARKING
BCX17LT1 = T1; BCX18LT1 = T2; BCX19LT1 = U1; BCX20LT1 = U2
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Total Device Dissipation FR 5 Board, (1)
P
D
225
mW
T
A
= 25C
Derate above 25C
1.8
mW/C
Thermal Resistance, Junction to Ambient
R
JA
556
C/W
Total Device Dissipation
P
D
300
mW
Alumina Substrate, (2) T
A
= 25C
Derate above 25C
2.4
mW/C
Thermal Resistance, Junction to Ambient
R
JA
417
C/W
Junction and Storage Temperature
T
J
, T
stg
55 to +150
C
1. FR5 = 1.0 x 0.75 x 0.062 in.
2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.
1
3
2
PNP
BCX17LT1
BCX18LT1
NPN
BCX19LT1
BCX20LT1
Voltage and current are negative
for PNP transistors
CASE 31808, STYLE 6
SOT23 (TO236AB)
2
EMITTER
3
COLLECTOR
1
BASE
2
EMITTER
3
COLLECTOR
1
BASE
LESHAN RADIO COMPANY, LTD.
M152/2
PNP BCX17LT1 BCX18LT1
NPN BCX19LT1 BCX20LT1
ELECTRICAL CHARACTERISTICS
(T
A
= 25C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
OFF CHARACTERISTICS
CollectorEmitter Breakdown Voltage
V
(BR)CEO
Vdc
(I
C
= 10 mAdc, I
B
= 0)
BCX17, 19
45
--
--
BCX18, 20
25
--
--
CollectorEmitter Breakdown Voltage
V
(BR)CES
Vdc
(I
C
= 10
Adc, I
C
= 0)
BCX17, 19
50
--
--
BCX18, 20
30
--
--
Collector Cutoff Current
I
CBO
(V
CB
= 20 Vdc, I
E
= 0)
--
--
100
nAdc
(V
CB
= 20 Vdc, I
E
= 0, T
A
= 150C )
--
--
5.0
Adc
Emitter Cutoff Current
I
EBO
--
--
10
Adc
(V
EB
= 5.0 Vdc, I
C
= 0)
ON CHARACTERISTICS
DC Current Gain
h
FE
--
( I
C
= 100 mAdc, V
CE
= 1.0 Vdc )
100
--
600
( I
C
= 300 mAdc, V
CE
= 1.0 Vdc )
70
--
--
( I
C
= 500 mAdc, V
CE
= 1.0 Vdc )
40
--
--
CollectorEmitter Saturation Voltage
V
CE(sat)
--
--
0.62
Vdc
( I
C
= 500mAdc, I
B
= 50mAdc )
BaseEmitter On Voltage
V
BE(on)
--
--
1.2
Vdc
( I
C
= 500 mAdc, V
CE
= 1.0 Vdc )
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