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PDF MU4892 Data sheet ( Hoja de datos )
| Número de pieza | MU4892 | |
| Descripción | SILICON UNIJUNCTION TRANSISTOR | |
| Fabricantes | Digitron Semiconductors | |
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MU4891-MU4894
High-reliability discrete products
and engineering services since 1977
SILICON UNIJUNCTION TRANSISTOR
FEATURES
Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number.
Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix.
MAXIMUM RATINGS.
Rating
Symbol
Value
Power dissipation(1)
PD 300
RMS emitter current
IE 50
Peak pulse emitter current (2)
iE 1.0
Emitter reverse voltage
VB2E 30
Storage temperature range
Tstg -65 to 150
Note 1: Derate 3mW/°C increase in ambient temperature. The total power dissipation must be limited by the external circuitry.
VB2B1 = √(RBB · PD)
Note 2: Capacitance discharge must fall to 0.37 Amp within 3.0ms and PRR ≤ 10PPS.
Unit
mW
mA
Amps
Volts
°C
ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted)
Parameter
Symbol
Min Typ
Intrinsic standoff ratio
(VB2B1 = 10V) (1)
MU4892
MU4891, MU4893
MU4894
η
0.51 -
0.55 -
0.74 -
Interbase resistance
(VB2B1 = 3V, IE = 0)
MU4891, MU4892
MU4893, MU4894
RBB
4.0 7.0
4.0 7.0
Interbase resistance temperature coefficient
(VB2B1 = 3V, IE = 0, TA = -65° to 100°C)
Emitter saturation voltage
(VB2B1 = 10V, IE = 50mA)(2)
αRBB
VEB1(sat)
0.1 -
- 2.5
Modulated interbase current
(VB2B1 = 10V, IE = 50mA)
Emitter reverse current
(VB2E = 30V, IB1 = 0)
IB2(mod)
IEB2O
10 15
- 5.0
Peak point emitter current
(VB2B1 = 25V)
MU4891
MU4892, MU4893
MU4894
IP
- 0.6
- 0.6
- 0.6
Valley point current
(VB2B1 = 20V, RB2 = 100ohms)(2)
MU4891, MU4893, MU4894
MU4892
IV
2.0 4.0
2.0 3.0
Base-one peak pulse voltage(3)
Figure 3
MU4891, MU4892, MU4894
MU4893
VOB1
3.0 5.0
6.0 8.0
Note 1: Intrinsic standoff ratio: η = (VP-VEB1)/VB2B1, where VP = peak point emitter voltage , VB2B1 = interbase voltage, VEB1 = emitter to base one junction diode drop
(≈ 0.5V @ 10µA).
Note 2: PW ≈ 300µs, duty cycle ≤ 2% to avoid internal heating due to interbase modulation which may result in erroneous readings
Note 3: Base one peak pulse voltage is used to ensure minimum pulse amplitude for applications in SCR firing circuits and other types of pulse circuits.
Max
0.69
0.82
0.86
9.1
12.0
0.9
4.0
-
10
5.0
2.0
1.0
-
-
-
-
Unit
-
kΩ
%/°C
Volts
mA
nA
µA
mA
Volts
Rev. 20121009
1 page | ||
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