Planeta JSC Planeta, 2/13, Fedorovsky Ruchei, Veliky Novgorod, 173004, Ru ssia
E l e c t r o n i c c o m p a n y Ph/Fax: +7 (81622) 3 - 17 - 36, 3 - 32 - 86 E - mail: planeta@novgorod.net
http: //www.novgorod.net/~planeta
2N4988
Silicon unilateral switch (SUS)
in package TO - 92


2.5
0.7max
5.2
1.6
0.45max
14.5
4.2
5.2
1
2
3





Ratings
Symbol Parameter, units Limits
V rrm Peak reverse voltage, V - 30
I T(rms) DC forward anode current, mA 175
I gm DC gate current, mA 5
I T(sm) Peak recurrent forward current, A,
(1 % duty cycle, 10 µsec pulse width)

1
P Power dissipation, mW 300
Electrical Characteristics (T A =25°C)
Limits Symbol Parameter, unit, test conditions
min max
V S Switching voltage, V 7.5 9
I S Switching current, µA 150
I H Holding current, mA 0.5
I R Revers current, µA ,
V R = - 30V

0.1
I B Forward current (off - state), µA,
V F =5V

0.1
V F On - State voltage, V,
I F =175mA

1.5

Pinouts:
1 - Cathode, 2 - Gate, 3 - Anode