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Available analogs - 9402.3702-01, 9402.3702-02


Voltage regulator 9402.3702
General information
Connection diagram
Dimensional drawing


General information:

The voltage regulator 9402.3702 is purposed for voltage maintenance of the onboard vehicle network in predetermined limits in all system operation modes of electrical equipment at change of the rotation frequency of the alternator rotor, electrical load and environment temperature.

Applicability: automobiles VAZ-2108, -2109, -2110, -2111, -2112, -2121 and others with alternators 94.3701, 9402.3701 and others.

The voltage regulator 9402.3702 can operate together with rectifier units either of restrictive type or with standard power diodes.

The automobile voltage regulator 9402.3702 is the regulator of a new generation. Due to usage of the modern powerful MOSFET transistor as an output switch, the highest parameters of the current velocity characteristic are reached, the power losses are sharply lowered and the item reliability as a whole enlarged.

The regulator is produced in a single climatic design О2.1 in accordance with GOST 15150 for internal market and for export. On protection degree against penetration of foreign bodies and water, the item meets design IP68 in accordance with GOST 14254. An operating mode of the regulator is S1 in accordance with GOST 3940.

The regulator is mounted directly on the alternator where the setting of regulators 9402.3702, 9402.3702-01, 57.3702, ЩДР-1 with Я212А11Е, М14РН5А in the brush unit, ЩДР-1 with К1216ЕН1 with the help of standard screws is stipulated.

The warranty period of exploitation is 3 years from the date of commissioning or from the date of sale in retail commercial network. The warranty obligations of the manufacturer are valid during 4 years from the date of the item production. The date of production is marked on the case of the item.




Range of operating temperatures, °С
-45 .. +100
  Nominal regulating voltage, V
  Regulating voltage with battery at t°=(25 ± 2) °С and load of alternator 3А, V
14,1 ± 0,1
  Regulating voltage with battery at t°=(25 ± 2) °С in range of alternator load from 3A to 0,9· Imax* , V
14,1 ± 0,15
  Maximum current of output circuit, A
  Thermal compensation of regulating voltage, mV/°С
-4,5 ± 1,5
  Residual voltage on output "DF": maximal / typical, V
0,15 / 0,12
  Maximum allowable long-term influence of increased supply voltage, V
  Maximum allowable influence of increased supply voltage up to 5 min., V
  Maximum allowable pulse overvoltages in accordance with GOST 28751, V


Connection diagram:

Connection diagram of the voltage regulator 9402.3702


Dimensional drawing:

Dimensional drawing of the voltage regulator 9402.3702
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