LESHAN RADIO COMPANY, LTD.
O8–2/4
MMBT2907LT1 MMBT2907ALT1
ELECTRICAL CHARACTERISTICS (T A = 25°C unless otherwise noted) (Continued)
Characteristic Symbol Min Max Unit
ON CHARACTERISTICS
DC Current Gain hFE ––
(I C = –0.1mAdc, V CE = –10 Vdc) MMBT2907 35 ––
MMBT2907A 75 ––
(I C =–1.0mAdc, V CE = –10 Vdc) MMBT2907 50 ––
MMBT2907A 100 ––
(I C = –10 mAdc, V CE = –10Vdc) MMBT2907 75 ––
MMBT2907A 100 ––
(I C = –150mAdc, V CE =–10 Vdc)(3) MMBT2907 –– ––
MMBT2907A 100 300
(I C = –500mAdc, V CE =–10 Vdc)(3) MMBT2907 30 ––
MMBT2907A 50 ––
Collector–Emitter Saturation V oltage(3) VCE(sat) Vdc
(I C = –150mAdc, I B = –15 mAdc) –– –0.4
(I C = –500 mAdc, I B = –50 mAdc) –– –1.6
Base–Emitter Saturation V oltage(3) V BE(sat) Vdc
(I C = –150mAdc, I B = –15 mAdc) –– –1.3
(I C = –500mAdc, I B = –50 mAdc) –– –2.6
SMALL–SIGNAL CHARACTERISTICS
Current–Gain — Bandwidth Product(3),(4) f T200 –– MHz
(I C = –50mAdc, V CE= –20Vdc, f = 100MHz)
Output Capacitance
(V CB = –10 Vdc, I E = 0, f = 1.0 MHz) C obo –– 8.0 pF
Input Capacitance C ibo –– 30 pF
(V EB = –2.0Vdc, I C = 0, f = 1.0 MHz)
SWITCHING CHARACTERISTICS
Turn–On T ime (V CC = –30 Vdc, t on —45
Delay T ime I C = –150 mAdc, I B1 = –15 mAdc) t d—10ns
Rise T ime t r—40
Fall T ime (V CC = –6.0 Vdc, t f—30
Storage T ime I C = –150 mAdc,I B1 = I B2 = 15 mAdc) t s—80ns
T urn–Of f Time t off — 100
3. Pulse Test: Pulse Width
<
300 µs, Duty Cycle
<
2.0%.
4. f T is defined as the frequency at which |h f e | extrapolates to unity.
Figure 1. Delay and Rise Time Test Circuit
0 0
–16 V
200 ns
50
1.0 k
200
–30 V
T O OSCILLOSCOPE
RISE TIME
<
5.0 ns
+15 V –6.0 V
1.0 k 37
50 1N916
1.0 k
200 ns
–30 V
TO OSCILLOSCOPE
RISE TIME
<
5.0 ns
INPUT
Z O= 50 Ω
PRF = 150 PPS
RISE TIME
<
2.0 ns
P.W.
<
200 ns
INPUT
Z o = 50 Ω
PRF = 150 PPS
RISE TIME
<
2.0 ns
P.W.
<
200 ns
Figure 2. Storage and Fall Time Test Circuit