LESHAN RADIO COMPANY, LTD.
M15–1/2
General Purpose Transistors
MAXIMUM RATINGS
Value
Rating Symbol
BCX17LT1 BCX18LT1
Unit
BCX19LT1 BCX20LT1
Collector–Emitter Voltage V
CEO
45 25 Vdc
Collector–Base Voltage V
CBO
50 30 Vdc
Emitter–Base 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
= 25°C
Derate above 25°C
1.8 mW/°C
Thermal Resistance, Junction to Ambient R
θJA
556 °C/W
Total Device Dissipation
P
D
300 mW
Alumina Substrate, (2) T
A
= 25°C
Derate above 25°C
2.4 mW/°C
Thermal Resistance, Junction to Ambient R
θJA
417 °C/W
Junction and Storage Temperature T
J
, T
stg
–55 to +150 °C
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.
1
3
2
PNP
BCX17LT1
BCX18LT1
NPN
BCX19LT1
BCX20LT1
Voltage and current are negative
for PNP transistors
CASE 318–08, STYLE 6
SOT–23 (TO–236AB)
2
EMITTER
3
COLLECTOR
1
BASE
2
EMITTER
3
COLLECTOR
1
BASE