2–323
Motorola Small–Signal Transistors, FETs and Diodes Device Data
Switching Transistor
PNP Silicon
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Collector – Emitter Voltage
VCEO
–12
Vdc
Collector – Base Voltage
VCBO
–12
Vdc
Emitter – Base Voltage
VEBO
–4.0
Vdc
Collector Current — Continuous
IC
–80
mAdc
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Total Device Dissipation FR– 5 Board(1)
TA = 25°C
Derate above 25
°C
PD
225
1.8
mW
mW/
°C
Thermal Resistance, Junction to Ambient
RqJA
556
°C/W
Total Device Dissipation
Alumina Substrate,(2) TA = 25°C
Derate above 25
°C
PD
300
2.4
mW
mW/
°C
Thermal Resistance, Junction to Ambient
RqJA
417
°C/W
Junction and Storage Temperature
TJ, Tstg
– 55 to +150
°C
DEVICE MARKING
MMBT3640LT1 = 2J
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Max
Unit
OFF CHARACTERISTICS
Collector – Emitter Breakdown Voltage (IC = –100 Adc, VBE = 0)
V(BR)CES
–12
—
Vdc
Collector – Emitter Sustaining Voltage(1) (IC = –10 mAdc, IB = 0)
VCEO(sus)
–12
—
Vdc
Collector – Base Breakdown Voltage (IC = –100 mAdc, IE = 0)
V(BR)CBO
–12
—
Vdc
Emitter – Base Breakdown Voltage (IE = –100 mAdc, IC = 0)
V(BR)EBO
–4.0
—
Vdc
Collector Cutoff Current
(VCE = –6.0 Vdc, VBE = 0)
(VCE = –6.0 Vdc, VBE = 0, TA = 65°C)
ICES
—
–0.01
–1.0
Adc
Base Cutoff Current (VCE = –6.0 Vdc, VEB = 0)
IB
—
–10
nAdc
1. FR– 5 = 1.0
0.75 0.062 in.
2. Alumina = 0.4
0.3 0.024 in. 99.5% alumina.
Preferred devices are Motorola recommended choices for future use and best overall value.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
MMBT3640LT1
1
2
3
CASE 318 – 08, STYLE 6
SOT– 23 (TO – 236AB)
Motorola Preferred Device
COLLECTOR
3
1
BASE
2
EMITTER