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| 2N5431 Datasheet, PDF (1/2 Pages) New Jersey Semi-Conductor Products, Inc. – SILICON UNIJUNCTION TRANSISTOR | |||
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DIGITRON SEMICONDUCTORS
2N5431
PN SILICON ANNULAR UNIJUNCTION TRANSITOR
MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
Rating
Symbol
RMS power dissipation (1)
PD
RMS emitter current
Ie
Peak pulse emitter current (2)
Ie
Emitter reverse voltage
VB2E
Interbase voltage(3)
VB2B1
Operating junction temperature range
TJ
Storage temperature range
Tstg
1. Derate 3 mW/°C increase in ambient temperature.
2. Duty cycle ⤠1%, PRR = 10 PPS.
3. Based upon power dissipation at TA = 25°C.
Value
360
50
1.5
30
35
-65 to +125
-65 to +200
Unit
mW
mA
Amp
Volts
Volts
°C
°C
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Max
Unit
Intrinsic standoff ratio (1)
(VB2B1 = 10V)
Å
0.72
0.80
-
Interbase resistance
(VB2B1 = 3V, IE = 0)
RBB
6
8.5
kâ¦
Interbase resistance temperature
coefficient
αRBB
0.4
(VB2B1 = 3V, IE = 0, TA = 0 to 100°C)
0.8
%/°C
Emitter saturation voltage (2)
(VB2B1 = 10V, IE = 50mA)
VEB1(sat)
-
3
Volts
Modulated interbase current
(VB2B1 = 10V, IE = 50mA)
IB2(mod)
5
30
mA
Emitter reverse current
(VB2E = 30V, IB1 = 0)
IEB2O
-
10
nA
Peak point emitter current
(VB2B1 = 25V)
(VB2B1 = 4V)
Valley point current (2)
(VB2B1 = 20V, RB2 = 100ohms)
-
0.4
IP
-
µA
4
IV
2
-
mA
Base one peak pulse voltage
(VBB = 4V)
VOB1
1
-
Volts
1. Å. Intrinsic standoff ratio is defined in terms of the peak point voltage, VP, by means of the equation: VP = ÅVB2B1 + VF, where VF is about 0.45V
at 25°C @ IF = 10µA and decreases with temperature at about 2.5 mV/°C. Components R1, C1 and the UJT form a relaxation oscillator, the
remaining circuitry serves as a peak voltage detector. The forward drop of diode D1 compensates for VF. To use, the âcalâ button is pushed,
and R3 is adjusted to make the current meter, M1, read full scale. When the âcalâ button is released, the value of Å is read directly from the
meter, if full scale on the meter reads 1.
2. PW = 300µs, duty cycle ⤠2% to avoid internal heating, which may result erroneous readings.
144 Market Street
Kenilworth NJ 07033 USA
phone +1.908.245-7200
fax +1.908.245-0555
sales@digitroncorp.com
www.digitroncorp.com
Rev. 20121019
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