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Multifunctional voltage regulator 9333.3702-04
General information
Connection diagram
Dimensional drawing


General information:

The multifunctional voltage regulator 9333.3702-04 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.

The differential characteristic of voltage regulator 9333.3702-04 is a built in interference-suppression capacitor.

Applicability: automobiles VAZ-2110, VAZ-2111, VAZ-2112 with alternator 9402.3701-03; VAZ-2123 “Chevrolet Niva” with alternator 9402-3701-04 and others.

Multifunctional voltage regulator 9333.3702-04 ensure complete switching-off of the alternator’s field winding from the onboard network, thus increasing the reliability and safety of the vehicle power-supply system.

The voltage regulator 9333.3702-04 has a function of indication of the on-board network reduced/increased voltage and the alternator's low phase voltage. The indication is realized by glowing of the indicator lamp controlling the battery loading on the instrument cluster. The item ensures the fulfilment of a function of fading in current load. The regulator realizes also a function of protection against short-circuit in the output and indicator circuit.

The voltage control and regulation are performed directly on the alternator’s output terminal - on this principle all power supply diagrams of modern foreign automobiles of high class are built.

The regulator is produced in a single climatic design О2.1 in accordance with GOST 15150 for internal market and for export. On extent of protection 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 regulator 9333.3702-04 with the help of standard screws is stipulated. The application of regulator of the given types instead of the voltage regulators 7931.3702I4, 844.3702, 845.3702, 9444.3702 is possible, but with dismantlement of the standard filter capacitor.

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
-40 .. +110
  Regulating voltage with battery at t°=(25 ± 2) °С and load of alternator 5А, V
14,5 ± 0,1
  Regulating voltage with battery at t°=(25 ± 2) °С in range of alternator load from 3A to 0,9·Imax*, V
14,5 ± 0,15
  Maximum current of output circuit, А
  Thermal compensation of regulating voltage, mV/°С
-9,0 ± 3,0
  Residual voltage on output "DF": maximal / typical, V
0,06 / 0,05
  Threshold of indication actuation of low phase voltage, V
3,75 .. 7,25
  Threshold of indication actuation of lower voltage, V
10,9 .. 11,6
  Threshold of indication actuation of increased voltage, V
16,15 .. 17,15
  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
* - According to the technical conditions on the item  


Connection diagram:

СхемConnection diagram of the voltage regulator 9333.3702-25


Dimensional drawing:

Dimensional drawing of the voltage regulator 9333.3702-04
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