LESHAN RADIO COMPANY, LTD.
General Purpose Transistors
PNP Silicon
3
COLLECTOR
1
BASE
2
EMITTER
MAXIMUM RA TINGS
Rating Symbol Value Unit
Collector–Emitter Voltage V
Collector–Base Voltage V
Emitter–Base Voltage V
Collector Current — Continuous I
CEO
CBO
EBO
C
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
T otal Device Dissipation FR– 5 Board(1) P
T A =25 °C
Derate above 25°C 1.8 mW/°C
Thermal Resistance Junction to Ambient R
T otal Device Dissipation P
Alumina Substrate, (2) T A = 25°C
Derate above 25°C 2.4 mW/°C
Thermal Resistance Junction to Ambient R
Junction and Storage T emperature T J , T
D
θJA
D
θJA
stg
– 40 Vdc
– 40 Vdc
– 5.0 Vdc
– 200 mAdc
225 mW
556 °C/W
300 mW
417 °C/W
–55 to +150
MMBT3906LT1
3
1
2
CASE 318–08, STYLE 6
SOT– 23 (TO–236AB)
°C
DEVICE MARKING
MMBT3906LT1 = 2A
ELECTRICAL CHARACTERISTICS (T
= 25°C unless otherwise noted)
A
Characteristic Symbol Min Max Unit
OFF CHARACTERISTICS
Collector–Emitter Breakdown Voltage (3) V
(I C = –1.0 mAdc, I B = 0) – 40 —
Collector–Base Breakdown Voltage V
(I C = –10 µAdc, I E = 0) – 40 —
Emitter–Base Breakdown Voltage V
(I E = –10 µAdc, I C = 0) – 5.0 —
Base Cutoff Current I
(V
= –30 Vdc, V
CE
= –3.0 Vdc) — – 50
EB
Collector Cutoff Current I
(V
= –30 Vdc, V
CE
= –3.0 Vdc) — – 50
EB
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.
3. Pulse Width <300 µs; Duty Cycle <2.0%.
(BR)CEO
(BR)CBO
(BR)EBO
BL
CEX
Vdc
Vdc
Vdc
nAdc
nAdc
O12–1/5
LESHAN RADIO COMPANY, LTD.
MMBT3906LT1
ELECTRICAL CHARACTERISTICS (T
= 25°C unless otherwise noted) (Continued)
A
Characteristic Symbol Min Max Unit
ON CHARACTERISTICS (2)
DC Current Gain h
(I C = –0.1 mAdc, V
(I C = –1.0 mAdc, V
(I C = –10 mAdc, V
(I C = –50 mAdc, V
(I C = –100 mAdc, V
= –1.0 Vdc) 60 ––
CE
= –1.0 Vdc) 80 ––
CE
= –1.0 Vdc) 100 300
CE
= –1.0 Vdc) 60 ––
CE
= –1.0 Vdc) 30 ––
CE
Collector–Emitter Saturation Voltage V
(I C = –10 mAdc, I B = –1.0 mAdc) –– – 0.25
(I C = –50 mAdc, I B = –5.0 mAdc) –– – 0.4
Base–Emitter Saturation Voltage V
(I C = –10 mAdc, I B = –1.0 mAdc) – 0.65 – 0.85
(I C = –50 mAdc, I B = –5.0 mAdc) –– – 0.95
FE
CE(sat)
BE(sat)
SMALL–SIGNAL CHARACTERISTICS
Current–Gain — Bandwidth Product f
(I C = –10 mAdc, V CE= –20 Vdc, f = 100 MHz) 250 ––
Output Capacitance C
(V CB= –5.0 Vdc, I E = 0, f = 1.0 MHz) –– 4.5
Input Capacitance C
(V
= –0.5 Vdc, I C = 0, f = 1.0 MHz) –– 10
EB
Input Impedance h
(V CE= –10 Vdc, I C = –1.0 mAdc, f = 1.0 kHz) 2.0 12
Voltage Feedback Ratio h
(V CE= –10 Vdc, I C = –1.0 mAdc, f = 1.0 kHz) 0.1 10
Small–Signal Current Gain h
(V CE= –10 Vdc, I C = –1.0 mAdc, f = 1.0 kHz) 100 400
Output Admittance * h
(V CE= –10 Vdc, I C = –1.0 mAdc, f = 1.0 kHz) 3.0 60
Noise Figure NF dB
(V CE= –5.0Vdc, I C = –100 µAdc, R S =1.0 kΩ, f =1.0kHz)
T
obo
ibo
ie
re
fe
oe
–– 4.0
––
Vdc
Vdc
X 10
µmhos
MHz
pF
pF
kΩ
–4
—
SWITCHING CHARACTERISTICS
Delay Time (V
Rise Time I C = –10 mAdc, I
Storage Time (V
Fall Time I
3. Pulse T est: Pulse Width <300 µs; Duty Cycle <2.0%.
= – 3.0 Vdc, V
CC
= –3.0 Vdc, I C = –10 mAdc, t
CC
= I
= –1.0 mAdc) t
B1
B2
= 0.5 Vdc, t
BE
= –1.0 mAdc) t
B1
d
d
s
f
—35
—35ns
— 225 ns
—75
O12–2/5