24V to 12V 85A/100A Heavy Truck Step-Down Converter
- TopologySynchronous Buck
- Input Window18–35V DC Nominal
- Output Power12V DC @ 100A (1200W)
- Efficiency> 96% @ -40°C Ambient
Engineered for high vibrational resilience, extreme sub-zero operation down to -40°C, and stringent electromagnetic containment compliant with EN 61000-6-3 and ISO 7637-2 transients.
Navigating the intersection of brutal Nordic winter climates and Estonia's state-level digital logistics push requires specialized power electronics engineered without consumer-grade compromises.
From autonomous terminal tractors operating at Muuga Harbour to electric drayage shuttles handling freight between Paldiski and Tallinn, our isolated DC-DC converters bridge primary 48V–96V traction packs with sensitive LiDAR sensors, NVIDIA autonomous control stacks, and 24V pneumatic braking solenoids without ground-loop noise.
Heavy articulated haulers running the E67 corridor through Pärnu, connecting Scandinavia to Central Europe, depend on continuous cabin heating, digital tachographs, and dual-battery systems. Our 24V-to-12V buck converters handle high-draw tail-lifts and communication gear while preventing primary cranking battery exhaustion during border transit halts.
Estonian winter weather presents heavy road-salt exposure, slush ingress, and temperatures plunging to -30°C. Our IP67 and IP68 sealed aluminum-potted power modules eliminate internal moisture condensation, prevent cold-start semiconductor latch-ups, and feature cold-temperature derating safeguards for continuous 24/7 logging operations in forestry and heavy hauling across Ida-Viru and Tartu counties.
Estonia’s aggressive deployment of digital governance, green transport subsidies, and cross-border clean corridors is driving unprecedented structural shifts in commercial vehicle component procurement.
Driven by EU Green Deal mandates and regional municipal initiatives in Tallinn and Tartu, commercial urban fleets are rapidly shifting toward electric light commercial vehicles (e-LCVs) and retrofitted battery delivery trucks. This shift demands wide-input DC-DC units capable of converting 48V, 72V, or high-voltage 400V secondary loops down to stabilized 12V and 24V auxiliary circuits without requiring bulky secondary alternators.
Estonia is home to some of Europe's largest asset-light digital freight dispatchers and fleet aggregators founded via e-Residency. Modern fleet procurement mandates smart telemetry integration where converters are not silent black boxes, but communicate status over RS485 and CANopen protocols to report thermal levels, instantaneous amp draw, and load dropouts directly to telematics gate units.
Estonian commercial automotive OEMs and tier-1 upfitters have shifted away from unverified distributor sourcing toward factory-direct partnerships that provide verified CE, RoHS, and ISO 9001 compliance. Direct collaboration with experienced power supply manufacturers guarantees verified trace components, custom wire harness termination, and stable lifecycle guarantees spanning 5 to 7 years.
Founded in 2015, Shenzhen Eltrum Electronic Co., Ltd. has grown to become an authoritative manufacturer of isolated DC-DC converters, dynamic buck-boost stabilizers, waterproof LiFePO4 battery chargers, and specialized power electronics. Operating from our fully certified Shenzhen production facility, we maintain comprehensive end-to-end control across SMT assembly, automated planar transformer winding, epoxy potting, and extended thermal burn-in chambers.
Every commercial vehicle converter shipped to our European and Baltic clients undergoes automated 100% full-load testing under high-temperature cycling, ensuring absolute immunity to field infant mortality. Our facility legal status and operational processes have been verified onsite by world-class third-party inspection firms, offering Estonian automotive fleet engineers dependable OEM and ODM capabilities, custom enclosure metal-stamping, and firmware-calibrated charging profiles.
Addressing the technical, regulatory, and logistics inquiries commonly raised by commercial fleet upfitters and procurement directors in the Baltic region.
Contact our engineering desk today to review your input/output electrical profiles, request customized sample enclosures, or obtain full technical datasheets and compliance dossiers.