General information:

The voltage regulator 9333.3702-20 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 9333.3702-20 is a built in interference-suppression capacitor.

Applicability: automobiles KAMAZ with the engine KAMAZ-740, JAMZ-236 and others with alternator 3252.3771; MAZ (Euro-2) with the engine MMZ D245, D260 and others with alternator 3232.3771-10.

The automobile voltage regulator 9333.3702-20 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.

Due to usage of the additional wire, voltage on the alternator is maintained directly on the alternator output terminal. It prolongs battery life cycle, provides optimal operating modes of all using equipment, increasing thus reliability of all automobile electrical equipment.

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 IP67 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 9333.3702-20 with the help of standard screws is stipulated. The application of regulators of the given types instead of the voltage regulators 3232.3702 or JA222B 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.

Specifications:

Range of operating temperatures, °С -40 .. +110   Regulating voltage with battery at t°=(25 ± 2) °С and load of alternator 5А, V 28,4 ± 0,2   Regulating voltage with battery at t°=(25 ± 2) °С in range of alternator load from 5A to 0,9· Imax* , V 28,4 ± 0,3   Maximum current of output circuit, А 5,0   Thermal compensation of regulating voltage, mV/°С -9,0 ± 3,0   Residual voltage on output "DF": maximal, V 0,15   - typical, V 0,12   Maximum allowable long-term influence of increased supply voltage, V 36,0   Maximum allowable influence of increased supply voltage up to 5 min., V 50,0   Maximum allowable pulse overvoltages in accordance with GOST 28751, V 200,0

Connection diagram:

Dimensional drawing: