DC/DC voltage converter 24 V/12 V

Real game changers: HELLA DC/DC converters 24 V/12 V convert the electrical energy from 24 V vehicle electrical systems to 12 V. With the help of these 24 V/12 V converters, 12 V loads can be used in a 24 V-based E/E architecture such as fans, lamps, and navigation and infotainment systems.


The HELLA DC/DC converters 24 V/12 V are extremely easy to integrate into the vehicle, as they do not require a data interface. They impress with a high efficiency of up to 90% and ensure reliable operation of 12 V devices. The voltage converters accept a wide range of input voltages from 18 V to 32 V, and provide stable output power at 13.5 V and up to 20 A rated current. Passive air cooling limits maintenance to an absolute minimum.

Product Advantages

  • Energy transfer of 24 V to 12 V voltage systems, up to 300 W
  • Passive air cooling
  • Power supply for 12 V loads like lighting, ECUs, sensors, etc.
  • Simple integration without data interface
  • Integrated short circuit and polarity reversal protection
  • Efficiency of up to 90%

Technical Data

Input voltage 18 - 32 V
Output voltage 13.5 V
Max. power Up to 300 W
Functional safety QM
Data connection N/A
Weight approx. 600 g
Working temperature -40 °C to +75 °C
Connector 6-pin connector (Tyco), 90° no. 9-966140-5
Mating connector* No. 8-968970-02 (Tyco)
Cooling concept Air, passive
Protection class IP 30
Operating temperature -40 °C to +85 °C
Efficiency Up to 90%
Ripple < 200 mVpp
No-load current < 5 mA
PWM center frequency 200 kHz (with dithering)
Mounting point** Adapter plate

* This accessory is not included in the scope of delivery. Available from Tyco.

** This component is not included in the scope of delivery. Available on request.

Program Overview

Description Part number Packaging unit
DC/DC converter 24 V/12 V on request 1