Precision Buck-Boost, Isolated DC-DC Converters & Sub-Zero Power Modules for Finnish OEMs
Direct supply from Shenzhen Eltrum factory to Vantaa logistics, airport logistics, robotics, and off-grid sub-zero installations.
Vantaa is not merely Finland's fourth-largest municipality; it represents the primary freight, aviation, and advanced automated handling core of the Nordic corridor.
Industrial machinery deployed across the Vantaa Aviapolis and surrounding logistics zones faces rigorous environmental demands. Winter temperatures consistently drop below -25°C, subjecting battery chemistries—both legacy lead-acid and modern Lithium Iron Phosphate (LiFePO4)—to severe chemical inertia and voltage sag. When heavy industrial equipment or electric ground support vehicles (GSE) at Helsinki Airport initiate cold-cranking cycles, DC bus rails can plummet from an ambient 24V down to 8.5V in milliseconds. Ordinary non-synchronous linear or standard step-down regulators drop out, triggering erratic ECU resets, data loss in telematics nodes, and communication failures in automated storage systems.
Eltrum's line of industrial synchronous buck-boost voltage regulators solves this challenge. Built using aerospace-grade automotive components, high-saturation planar transformers, and thermally conductive epoxy potting compounds, our regulators maintain a locked ±1% regulated DC output rail even during severe voltage brownouts and sudden inductive dump loads. Designed specifically to exceed the harsh mechanical and climatic demands of the Fennoscandian climate, these units bridge the gap between volatile traction pack energy and sensitive mission-critical controls.
Helsinki Airport (HEL) ground support machinery demands 24V-to-12V and 48V-to-24V power transformation immune to wet slush, salt spray, and jet-exhaust vibration. Our IP67-rated waterproof regulators guarantee continuous power to GPS, aircraft transponders, and thermal cabin telemetry.
Distribution centers along Ring III (Kehä III) deploy AGVs cycling between warm fulfillment bays and frozen sorting cells. Eltrum's isolated DC-DC converters eliminate ground loops and isolate sensitive LIDAR sensors from traction-motor EMI spikes.
Transport logistics operating across Southern and Central Finland rely on auxiliary reefer controllers. Our wide-input 9–40V buck-boost modules hold an unwavering 13.8V or 24V supply to prevent defrost timing dropouts regardless of generator surges.
Auxiliary hybrid microgrids across Uusimaa combine small wind generators and PV panels. Our high-voltage 30–90V step-down units step fluctuating intermittent solar array outputs down to stable 12V/24V battery management lines without excess heat waste.
Understanding shifting technical mandates across the European Union and the specific electrification demands of the Nordic market.
With Finland's commitment to climate neutrality by 2035, logistics operators in Vantaa are accelerating the shift from diesel terminal tractors to 400V–800V BEV architectures. This transition demands secondary isolated auxiliary DC-DC conversion steps down to 24V/12V subsystems with low electromagnetic emissions complying with EN 55032 Class B standards.
Silicon Carbide (SiC) and Gallium Nitride (GaN) field-effect transistors are rapidly replacing conventional silicon MOSFETs in Eltrum's high-density OEM catalog. This shifts operating frequencies up to 500 kHz, reducing passive magnetic core volume by 40% while pushing total energy efficiency ratings above 97%—minimizing parasitic heating inside sealed enclosure boxes.
Modern Finnish industrial systems reject "black box" passive converters. There is an increasing demand for intelligent power modules that stream real-time current draw, thermal junction temperatures, input voltage stability, and life-cycle analytics directly to central telematics over isolated RS485 or CANbus communication links.
Combining world-class engineering know-how with flexible custom OEM/ODM manufacturing capability.
Founded in 2015, Eltrum operates a dedicated manufacturing footprint of up to 3,000 m² equipped with automated SMT placement, automated optical inspection (AOI), dual-wave soldering, and computer-controlled potting production lines. We maintain an onsite workforce of 51–100 skilled technical personnel.
Every single DC-DC converter, voltage regulator, and LiFePO4 charger undergoes an uninterrupted multi-hour thermal burn-in cycle under elevated dynamic load profiles before packaging. This stringent QC methodology ensures out-of-box field failure rates under 0.08% for our Scandinavian partners.
Whether you require custom input swings (e.g., specialized 10–60V rails), modified output voltages (such as 13.8V, 14.6V, 28V, or 58.4V), custom-pinned IP68 automotive connectors, or custom-branded cast aluminum enclosures, our R&D engineering group turns around customized functional samples in as little as 7–14 days.
We respect the development timelines of prototype engineers and system integrators. With an entry MOQ of just 5 units on standard catalog regulators, Finnish engineering teams can thoroughly bench-test and field-verify modules before issuing commercial scale blanket purchase orders.
Clear, direct answers regarding customs, sub-zero performance, certifications, and system topology matching.
Our standard outdoor and vehicle-grade DC-DC converters are fully encapsulated using high-grade silicone elastomeric potting compounds capable of operating continuously from -40°C to +85°C. Unlike conventional polyurethane potting, our compound retains elasticity down to -45°C without micro-cracking, completely preventing moisture ingress from freeze-thaw cycles and protecting internal ceramic capacitors from thermal shock mechanical fractures during sub-zero cold-starts.
Because Vantaa hosts the central air logistics network of Finland (HEL hub), standard expedited samples dispatched via DHL, FedEx, or UPS air freight typically arrive on dock within 4 to 6 business days. Commercial production volume is dispatched via air cargo directly into Helsinki Airport or sea freight into the Port of Helsinki (Vuosaari Harbour). We provide full CE Declarations of Conformity, commercial invoices, and HS code documentation for swift clearance through Finnish Customs (Tulli).
Non-isolated Buck-Boost converters share a common negative ground between the input power source and the output load. They are cost-effective, smaller, and achieve up to 96% efficiency, making them ideal for automotive battery-to-battery charging and standard lighting circuits. However, if your application involves high-voltage traction batteries (such as 48V–80V forklift battery packs), long telecom field lines subject to lightning induced currents, or distinct ground differentials between chassis and computer sensors, an Isolated DC-DC Converter (with 1500VDC galvanic isolation) is mandatory to eliminate circulating ground loop currents and prevent damage to expensive logic boards.
Yes. All Eltrum standard industrial converter topologies are designed and tested to satisfy European CE directives, specifically electromagnetic compatibility (EMC) regulations (EN 61000-6-2, EN 61000-6-4 / EN 55032) and low voltage safety standards. Products comply fully with RoHS environmental restrictions, containing no hazardous substances above permitted threshold levels, accompanied by verifiable factory compliance documentation.
Yes. Euro 6 and Euro 6d engines implement regenerative braking routines that cause alternator output voltages to drop below 12.3V during cruise conditions and spike above 15.2V on deceleration. Our DC-DC battery-to-battery charger family features ignition-detection control wires and programmable multi-stage CC/CV charging software curves, insulating auxiliary LiFePO4 or AGM battery packs from erratic vehicle alternator behaviors and ensuring consistent 100% capacity charging without triggering ECU warning lights.
We work with international procurement departments using USD or EUR wire transfers via T/T, PayPal for initial prototyping fees, and verified Escrow services. Commercial delivery terms include FOB Shenzhen, CIF Helsinki, or EXW factory depending on your freight forwarding consolidation requirements.
Connect directly with Shenzhen Eltrum factory engineers. We review your voltage rails, cold-cranking windows, and mechanical dimensions to propose optimal off-the-shelf catalog models or custom OEM modifications within 24 hours.