1Motorola Small–Signal Transistors, FETs and Diodes Device Data
C0071C0101C0110C0101C0114C0097C0108 C0080C0117C0114C0112C0111C0115C0101
C0084C0114C0097C0110C0115C0105C0115C0116C0111C0114C0115
MAXIMUM RATINGS
Value
Rating Symbol
BCX17LT1
BCX19LT1
BCX18LT1
BCX20LT1 Unit
Collector–Emitter Voltage V
CEO
45 25 Vdc
Collector–Base Voltage V
CBO
50 30 Vdc
Emitter–Base Voltage V
EBO
5.0 Vdc
Collector Current — Continuous I
C
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)
T
A
= 25°C
Derate above 25°C
P
D
225
1.8
mW
mW/°C
Thermal Resistance, Junction to Ambient R
θJA
556 °C/W
Total Device Dissipation
Alumina Substrate,
(2)
T
A
= 25°C
Derate above 25°C
P
D
300
2.4
mW
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
Thermal Clad is a trademark of the Bergquist Company
Order this document
by BCX17LT1/D
C0077C0079C0084C0079C0082C0079C0076C0065
SEMICONDUCTOR TECHNICAL DATA
C0080C0078C0080
C0066C0067C0088C0049C0055C0076C0084C0049
C0066C0067C0088C0049C0056C0076C0084C0049
C0078C0080C0078
C0066C0067C0088C0049C0057C0076C0084C0049
C0066C0067C0088C0050C0048C0076C0084C0049
1
2
3
CASE 318–08, STYLE 6
SOT–23 (TO–236AB)
Voltage and current are negative
for PNP transistors
 Motorola, Inc. 1996
COLLECTOR 3
1
BASE
2 EMITTER
COLLECTOR 3
1
BASE
2 EMITTER