From high-efficiency sub-100W waterproof step-downs to multi-kilowatt bidirectional battery conversion units, every unit is assembled under ISO 9001:2015 controls and undergoes full-load burn-in aging before deployment.
Espoo stands at the epicenter of Finland's technology corridor—home to the Otaniemi innovation campus, Aalto University, cutting-edge telecommunications labs in Keilaniemi, and autonomous marine electrification testing along the Gulf of Finland. In this dense ecosystem of advanced engineering, power electronics cannot afford standard commercial-grade tolerances. Equipment operating in Southern Finland faces extreme thermal swings, sub-zero ambient cold starts down to -30°C or -40°C, and stringent European electromagnetic compatibility (EMC) regulations.
Whether stepped down from 48VDC battery plants to 12VDC auxiliary logic in autonomous heavy excavators, or stepped up from 12V/24V service batteries to high-voltage telecommunication buses, our direct-factory DC-DC conversion units combine modern Silicon Carbide (SiC) and Gallium Nitride (GaN) switching topologies with vacuum-encapsulated potting and galvanic isolation up to 3000VDC.
"Nordic engineering mandates unyielding MTBF. In sub-zero Nordic environments, component ESR changes drastically; our custom magnetics and low-temp electrolyte formulations guarantee zero-voltage drop and ripple stability under severe thermal cycles."
Serving OEM system builders, marine retrofitters, clean-tech battery integrators, and telecom network contractors across Espoo, Helsinki, Vantaa, and the wider Uusimaa region, we deliver factory-direct engineering agility paired with ISO 9001:2015 traceability and full CE/RoHS compliance.
From Keilaniemi telecom base transceiver stations to Otaniemi automated electric machinery trials, our DC-DC converters bridge disparate DC bus architectures reliably.
48VDC central telecommunications backup power systems require highly stable, ultra-low ripple 12VDC and 24VDC sub-buses to run active optical transceivers, network processors, and remote monitoring gateways. Our rack-mount and DIN-rail isolated converters ensure zero ground-loop interference and feature active current-sharing for N+1 redundant architectures.
Finnish autonomous industrial equipment and electric commercial machinery depend on 300V–800V main traction batteries, requiring high-power auxiliary step-down units to supply 24V hydraulic valves, safety LiDAR sensors, steering servos, and CAN bus compute clusters. Our ruggedized chassis withstand 20G vibration shocks and brutal thermal cycling.
Navigating the Gulf of Finland demands salt-fog resistance and galvanically isolated power conversion. Hybrid ferries, autonomous workboats, and harbor cranes in the Helsinki-Espoo archipelago use our isolated 72V, 60V, and 48V to 24V converters to prevent electrolytic corrosion between ship hulls and onboard navigation/autopilot radar electronics.
Compare how our modular DC-DC topologies perform against the rigorous electrical demands of Nordic industrial projects.
| Converter Series / Topology | Typical Input Range | Output Voltage & Current | Peak Efficiency | Isolation Level | Ideal Espoo Use-Case |
|---|---|---|---|---|---|
| Synchronous Buck (Non-Isolated) | 18V – 36V DC | 12V @ 10A–50A (120W–600W) | 96.2% | Non-Isolated (Common GND) | Commercial vehicle auxiliary step-down, sensor pods |
| Ultra-Wide Buck-Boost | 8V – 40V DC Dynamic | 13.8V @ 5A–25A | 94.8% | Non-Isolated (Synchronous) | Mobile communications, Starlink Mini vehicle power, battery float |
| High-Voltage Isolated Full-Bridge | 36V – 90V DC (48V/72V Bus) | 24V @ 10A–40A (240W–960W) | 93.5% | 1,500V – 3,000V DC | Rail signaling, marine DC bus, telecom infrastructure |
| High-Power Industrial Rectifier | 110V / 220V AC (Wide 85–265V) | 24V / 48V @ 10A–100A | 94.0% | 3,000 VAC Dielectric Proof | Industrial switchgear, Otaniemi R&D automation, battery charging |
| Bidirectional Hybrid ESS Converter | 40V – 60V DC Battery | 220V / 230V AC Pure Sine (3kW) | 93.0% | Optocoupled High-Frequency | Off-grid eco-cabins, sub-station emergency backup, solar ESS |
Finnish winters place thermal shock stressors on switching semiconductors. Our proprietary design combines three defensive layers:
When selecting high power DC-DC converters for prolonged duty in Nordic sub-stations or mobile mining assets, standard power equations fail if thermal derating and cold-state input surges are ignored. Our engineering team utilizes comprehensive sizing formulas:
Input Sizing Formula:
I_in(continuous) = P_out / (V_in(min) × Efficiency_est)
Example: Delivering 24VDC @ 20A (480W) from an aging 48V battery bank dropping to 38V at -25°C with 92% converter efficiency requires: 480W / (38V × 0.92) = 13.73A continuous input cable rating.
Additionally, inductive inrush factors (such as starting auxiliary DC coolant pumps or high-power radio transmitters) demand a peak headroom multiplier of P_peak ≥ P_continuous × 1.35. Varnix modules incorporate integrated foldback overcurrent limiting rather than instant latching shutdown, allowing seamless surge clearance without system reset.
Understanding the technological transformation driving procurement across Uusimaa’s industrial sectors.
Espoo’s data centers and heavy machinery developers are rapidly shifting away from conventional 12V backbones toward 48V and high-voltage DC architectures. This shift dramatically reduces I²R copper losses by up to 75%, requiring high-density, modular step-down converters at each load point to supply legacy sub-circuits safely.
In accordance with Finland’s ambitious carbon neutrality targets, public procurement and industrial tenders heavily weight no-load standby losses. Modern DC-DC converters must achieve quiescent currents below 15mA in sleep mode, preventing battery drain in seasonal off-grid equipment and solar-powered environmental monitoring buoys.
Otaniemi’s power engineering clusters prioritize high power density (Watts/cm³). By integrating Silicon Carbide MOSFETs, switching frequencies exceed 200kHz, allowing significantly smaller magnetic chokes and filter capacitors while minimizing thermal generation in confined, sealed chassis.
Decades of manufacturing expertise, verified factory capabilities, and contract-backed quality guarantees.
Founded in 2003, our 1,229 m² manufacturing facility operates 10+ advanced assembly and testing lines verified directly on-premise by SGS Group.
Every single power unit undergoes continuous full-load aging tests on dedicated test benches, eliminating infant mortality and ensuring rugged field longevity.
Custom input/output voltage matching, custom extruded aluminum enclosures, specialized IP ratings, private labeling, and tailored connector looms for your project.
Full CE, RoHS, and FCC compliance certificates on file, along with complete laboratory test documentation ready for customs clearance and CE-marking audits.
Flexible commercial freight under FOB, CIF, EXW, FCA, and DDP terms with direct warehouse support to ensure smooth delivery across the Helsinki-Uusimaa corridor.
Our rapid technical response team (98.2% response rate) assists with schematics, electrical integration inquiries, and field troubleshooting in real time.
Unlike trading intermediaries, we manage complete production from raw SMD component soldering to high-precision oscilloscope waveform verification. Our integrated workflow ensures that Finnish equipment builders receive consistent batch-to-batch quality with verified bills of materials (BOM).
Custom engineering requests for specific terminal blocks (e.g. Phoenix Contact style, Anderson Powerpole, or sealed Deutsch connectors) can be readily incorporated during our assembly line stage.
Detailed technical answers addressing common inquiries from system designers and supply chain managers in Espoo.
Standard industrial power supplies often experience startup failure below -20°C due to increased capacitor equivalent series resistance (ESR) and altered semiconductor gate thresholds. Our Nordic-rated DC-DC converters are engineered with automotive-grade solid polymer or low-ESR ceramic capacitors, cold-stabilized optocouplers, and custom control ICs rated for -40°C operation. Furthermore, our sealed aluminum chassis utilize thermal mass retention and vacuum-cast polyurethane potting to ensure immediate cold-crank startup without internal condensation.
Non-isolated converters share a common negative ground (GND) between input and output, offering high power density (up to 96% efficiency) at lower cost—ideal for automotive aux systems and compact sensor enclosures. Isolated converters utilize an internal high-frequency planar transformer to electrically separate input and output ground planes (tested up to 1500VDC or 3000VDC dielectric withstand). This galvanic isolation is mandatory for telecom sites in Keilaniemi, marine DC networks, and industrial PLCs to eliminate ground loops, block dangerous high-voltage transients, and prevent electrolytic corrosion.
Yes. As an authentic manufacturer with 23+ years of engineering experience, we offer full design-based customization (ODM) as well as sample-based modifications. Whether you require an atypical input window (e.g., 16V–60V DC continuous) or a specialized output setpoint (e.g., 28.8V float for military battery packs, 30V for Starlink systems, or 56V for PoE++ base station injectors), our R&D team can adjust magnetics and feedback loops with rapid prototype delivery.
All catalog series shipped to European Union destinations carry CE marks and full RoHS environmental compliance. Our converters are tested against EN 55032 (electromagnetic emissions) and EN 55035 / EN 61000-4 series (immunity against electrostatic discharge, radiated fields, and electrical fast transients). Project-specific Declaration of Conformity (DoC) certificates, test reports, and factory inspection records are supplied with shipments.
For catalog models, our MOQ starts from as low as 1 to 5 units to support rapid prototyping, university R&D at Otaniemi, and pilot testing. Standard production batch sizes range from 50 to 5,000 units. Prototype samples can be built and dispatched via express air freight (DHL/FedEx/UPS) within 7–10 days; mass production runs typically dispatch in 15–25 business days depending on volume and customization depth.
Espoo's maritime climate along the Baltic Sea exposes external electronics to salty humid air and moisture condensation. Our IP67 and IP68 converters feature sealed aluminum die-cast housings coated with anti-corrosion anodized or powder finishes. Internally, all components are sealed via vacuum silicone or polyurethane potting, preventing air ingress, moisture damage, and conductive dust accumulation.
Our converters incorporate multi-tier hardware protection circuits: Over-Voltage Protection (OVP) via active clamping, Over-Current Protection (OCP) with self-recovering constant current or foldback limiting, Over-Temperature Protection (OTP) with thermal hysteretic shutdown, and Reverse Polarity Protection via MOSFET/diode barriers. In the event of a short circuit on the output line, the converter throttles output and resumes normal voltage automatically once the short is removed.
We support standard international commercial payment terms including Telegraphic Transfer (T/T), Letter of Credit (L/C) for project volume, and secure escrow services. Shipping can be booked under Incoterms 2020 including EXW, FOB, CIF (Helsinki Port), or DDP (Delivered Duty Paid directly to your facility door in Espoo, with all customs import clearance and duties handled smoothly).
Discuss your technical specifications directly with our power engineering staff. Share your input voltage range, target output amperage, isolation requirements, and environmental conditions to receive a formal quotation, 3D CAD step files, and test sample verification within 24 hours.