LESHAN RADIO COMPANY, LTD.
General Purpose Transistors
PNP
BCX17LT1
BCX18LT1
NPN
BCX19LT1
BCX20LT1
Voltage and current are negative
for PNP transistors
3
COLLECTOR
3
COLLECTOR
1
BASE
1
BASE
2
EMITTER
2
EMITTER
3
MAXIMUM RATINGS
Value
Rating
Symbol
BCX17LT1
BCX19LT1
45
50
5.0
500
BCX18LT1
BCX20LT1
25
30
5.0
500
Unit
1
2
CASE 318–08, STYLE 6
Collector–Emitter Voltage
Collector–Base Voltage
Emitter–Base Voltage
Collector Current — Continuous
V
V
V
CEO
CBO
EBO
Vdc
Vdc
Vdc
mAdc
SOT–23 (TO–236AB)
I
C
DEVICE MARKING
BCX17LT1 = T1; BCX18LT1 = T2; BCX19LT1 = U1; BCX20LT1 = U2
THERMAL CHARACTERISTICS
Characteristic
Total Device Dissipation FR– 5 Board, (1)
T
A
= 25°C
Derate above 25°C
Thermal Resistance, Junction to Ambient
Total Device Dissipation
Alumina Substrate, (2) T
A
= 25°C
Derate above 25°C
Thermal Resistance, Junction to Ambient
Junction and Storage Temperature
1. FR–5 = 1.0 x 0.75 x 0.062 in.
2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.
R
θJA
T
J
, T
stg
Symbol
P
D
Max
225
1.8
R
θJA
P
D
556
300
2.4
417
–55 to +150
Unit
mW
mW/°C
°C/W
mW
mW/°C
°C/W
°C
M15–1/2
LRC [ LESHAN RADIO COMPANY ]
