Founded in 2015 and headquartered in the high-tech manufacturing cluster of Shenzhen, Shenzhen Eltrum Electronic Co., Ltd. is a specialized technology-driven manufacturer focusing on high-efficiency DC-DC conversion and lithium battery charging solutions.
With an experienced R&D team and a complete production facility of up to 3,000 square meters, we design and produce over 500 active power supply models. Our portfolio spans step-down (buck), step-up (boost), automatic buck-boost stabilizers, galvanic isolated converters, and IP65/IP67 waterproof lithium battery chargers tailored for demanding automotive, marine, telecom, and industrial environments.
Assembly Workshop
Equipped with standardized workstation layouts, automated torque drivers, and ESD-protected component handling lines to ensure high consistency across high-volume production runs.
Our Shenzhen operations integrate automated component population, precision vacuum silicone potting for IP68 ingress protection, and comprehensive electrical testing arrays.
Line 01 · SMT & Manual Insertion
High-precision component placement combined with automated wave soldering ensures consistent solder fillets, low contact resistance, and exceptional resistance against vehicle vibration and mechanical shocks.
Line 02 · Electrical Validation
Each unit passes through digital power analyzers, electronic dynamic load testers, and high-voltage dielectric withstand checks before moving to environmental potting and final outgoing packaging.
Decades of combined engineering experience in switch-mode power topologies and high-temperature dissipation design.
Aluminum extruded enclosures combined with thermally conductive silicone encapsulation allow fanless, silent heat dissipation and complete IP65 to IP68 waterproof ratings for wet marine and engine bay applications.
Our synchronous rectification circuits deliver peak conversion efficiencies of up to 96%, dramatically lowering internal heat buildup and optimizing battery endurance in electric vehicles and off-grid solar banks.
Every converter and charger integrates built-in multi-stage protection: input over-voltage, input reverse polarity, output over-current, short circuit protection with auto-recovery, and over-temperature throttling.
From initial silicon verification to outgoing pallet audit, our quality assurance framework eliminates field infant mortality.
Rigorous inspection of power MOSFETs, magnetic cores, high-temp capacitors, and raw aluminum housings against strict BOM tolerances.
Automated optical inspection (AOI) after surface mount placement, followed by manual check for lead dress and mechanical fastener torque.
Modules operate at full thermal rating and rated amperage under dynamic input voltage cycles to simulate severe field operating conditions.
Comprehensive ripple & noise screening, dielectric insulation test (hi-pot), labeling verification, and drop-tested shockproof packaging.
Receive comprehensive technical datasheets, full mechanical CAD drawings, custom charging curve proposals, and factory-direct volume pricing within 24 hours.
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