High-Efficiency DC-DC Converters & Battery Chargers
Manufactured under ISO 9001 quality frameworks with CE and RoHS compliance. Designed to withstand severe thermal loads, mechanical vibration, and deep water ingress across Greater Jakarta.
Smart 36V Lithium Battery Charger DC 12V to 43.8V 13A
- Topology:Intelligent Boost CC/CV
- Input Voltage:DC 10–18V
- Output:DC 43.8V · 13A Max
- Ingress Rating:IP67 Fully Potted
1500W Buck-Boost Converter with RS485 Telemetry
- Topology:Synchronous Buck-Boost
- Input Range:10–60V Ultra-Wide
- Output:12V / 24V / 48V Regulated
- Control Bus:Modbus RTU / RS485
24V to 12V 85A/100A Commercial Bus Buck Regulator
- Topology:Non-Isolated Step-Down
- Continuous Current:100A (1200W Output)
- Efficiency:Up to 96%
- Housing:Heavy Extruded Aluminum
400W Waterproof DC-DC Dual-Battery LiFePO4 Charger
- Input Profile:10–36V Smart Alternator
- Charging Stages:CC / CV / Float
- Output:14.6V / 29.2V Programmed
- Sealing:Solid Epoxy Encapsulation
48V to 24V 40A 1000W Industrial Powertrain Buck
- Input Voltage:30–60V Continuous
- Output:24V Stabilized @ 40A
- Protection:OVP, OCP, OTP, Short Circuit
- Target:Electric AGV & Mining Carts
Isolated 18–90V to 12V 10A Ground-Loop Isolator
- Isolation:1500V DC Galvanic Barrier
- Input Range:18–90V Extended High
- Output:12V Clean Audio/Telemetry
- Thermal:-40°C to +85°C Operating
72V/60V to 24V 20A Light Electric Vehicle Module
- Input Voltage:30–90V Traction Rail
- Output:24V · 20A Steady State
- Transient Suppression:TVS Spike Clamp Built-In
- Application:E-Buses, Bajaj, E-Trikes
12V to 48V 20A 960W Heavy-Duty Boost Regulator
- Step-Up Ratio:12V Base to 48V Bus
- Current Output:20A Continuous
- Protection:Automotive Load Dump
- Case:IP68 Sealed Ribbed Housing
Bridging China's Power Electronics Prowess with Jakarta's E-Mobility Transition
The Special Capital Region of Jakarta (DKI Jakarta) stands as Southeast Asia's most demanding proving ground for commercial vehicles, passenger transit, and commercial fleet power electronics. Confronted by dense stop-and-go traffic along congested arteries like Sudirman-Thamrin, ambient road-surface temperatures regularly topping 45°C, and sudden tropical deluge conditions during the monsoon season, onboard power conversion units face acute stressors that generic off-the-shelf modules cannot endure.
As the Indonesian government aggressively executes Presidential Regulation No. 55/2019 regarding the Acceleration of the Battery Electric Vehicle Program, Jakarta has set benchmark targets to electrify 100% of the TransJakarta bus fleet by 2030. Achieving this monumental transition requires robust, high-current automotive DC-DC step-down and step-up converters that efficiently link primary traction battery packs (running at 350V–650V in heavy commercial buses or 48V–96V in light commercial delivery vehicles) with auxiliary 12V and 24V circuits.
Shenzhen Eltrum Electronic Co., Ltd., leveraging over a decade of tier-one precision manufacturing, supplies the Jakarta market with industrial-grade car DC-DC converters engineered specifically for severe tropical environments. By using state-of-the-art synchronous rectification, planar magnetics, and solid polyurethane vacuum-potting, our modules deliver continuous operational integrity through monsoons, road inundations, and extreme thermal cycling.
Localized Applications Across Jabodetabek and Indonesia
From the central industrial parks of Cikarang and Karawang to inner-city Jakarta transit depots, our DC-DC converters serve key sectors across the Indonesian archipelago.
TransJakarta & City Bus Fleets
Stepping down 600V/350V traction power or dual-stage 48V/24V intermediate sub-busses to stable, noise-free 12V/24V power rails. Ensures uninterrupted power for CCTV security arrays, digital route signs, validator card readers, and auxiliary air-conditioning blowers during prolonged idling in heavy traffic.
Commercial Trucks & Inter-Java Logistics
Heavy logistics corridors connecting Tanjung Priok Port with West Java distribution hubs depend on our 24V-to-12V buck converters (up to 100A). Designed to power cold-chain IoT temperature trackers, cab infotainment, telematics gateways, and auxiliary lighting directly from standard 24V truck alternators.
Last-Mile E-Trikes & Two-Wheelers
Urban delivery platforms (Grab, Gojek fleets, and regional logistics couriers) rely on compact 48V, 60V, and 72V to 12V step-down converters. Integrated into electric Bajaj and delivery scooters to run high-lumen headlamps, USB mobile charging hubs, and active GPS anti-theft trackers.
Karoseri (Bus Bodybuilder) Integration
Indonesia's celebrated coachbuilding industry (such as premier Karoseri builders in Central and East Java supplying Jakarta transport operators) requires standardized, CE-certified DC-DC converters. Our units effortlessly integrate into bespoke coach electrical harnesses with customized mounting brackets.
Mining & Plantation Auxiliaries
Jakarta corporate procurement headquarters oversee heavy machinery deployed across Kalimantan and Sumatra. Our isolated 18–90V wide-input converters resist excessive inductive kickback, load-dump spikes, and red-clay dust contamination in rugged dump trucks and excavators.
Off-Grid Mobile Microgrids & RVs
Catering to Indonesia's expanding luxury camper, overlanding, and marine transport sector. Our battery-to-battery (DC-DC) LiFePO4 chargers optimize energy flow from vehicle alternators to secondary leisure battery banks without risk of alternator overheating or battery overcharge.
Automotive DC-DC Topology Selection Matrix
A rigorous engineering guide to selecting the correct topology based on dynamic load demands, line-voltage fluctuations, and isolation requirements in Indonesian automotive designs.
| Converter Topology | Nominal Input Range | Regulated Output | Peak Efficiency | Galvanic Isolation | Optimal Indonesian Deployment Scenario |
|---|---|---|---|---|---|
| Synchronous Buck | 24V (18–36V) / 48V (30–60V) | 12V, 13.8V, 24V (up to 100A) | 94% – 96.5% | Non-Isolated (Common Ground) | Commercial trucks, urban delivery vans, and coach lighting auxiliary step-down |
| High-Current Boost | 10–16V (12V Battery) | 24V, 36V, 48V (up to 50A) | 92% – 95% | Non-Isolated | Stepping up 12V starter battery rails to run 24V/48V hydraulic tailgates or pumps |
| 4-Switch Buck-Boost | 8–40V / 10–60V Universal | 12V, 13.8V, 24V, 28V (Stable) | 91% – 94% | Non-Isolated | Cranking voltage stabilizer for micro-hybrid start/stop systems & fluctuating solar rails |
| High-Frequency Isolated | 18–36V, 36–75V, 18–90V Wide | 5V, 12V, 24V (Galvanic Barrier) | 88% – 92% | Yes (1500V DC Isolation) | Noise-sensitive telematics, high-voltage traction isolation, and industrial mining rigs |
Mitigating "Banjir" Floods and Extreme Thermal Dissipation in Jakarta
Vehicle components operating within Jakarta must survive two extreme environmental factors: severe ambient humidity and standing floodwater (locally known as Banjir). In low-lying transit corridors such as Grogol, Pluit, and Kelapa Gading, urban commercial vehicles and buses frequently encounter water levels reaching 20–50 cm during torrential rains.
Standard automotive electronics enclosed in vented, sheet-metal housings suffer rapid dielectric breakdown, corrosion, and catastrophic short-circuits under these conditions. Shenzhen Eltrum Electronic solves this challenge by engineering IP67 and IP68 sealed power converters using vacuum-degassed thermally conductive polyurethane potting.
- 100% impervious to standing water, corrosive road grime, and salt-laden coastal moisture.
- Eliminates internal condensation caused by abrupt temperature shifts between air-conditioned garages and humid tropical roadways.
- Monolithic solid-potted structure dampens constant engine and roadway vibration along unpaved or potholed suburban roads.
Additionally, our extruded 6063 aerospace-grade aluminum chassis acts as an integrated heatsink. Natural convection cooling maintains internal junction temperatures well within safe operating limits, even during prolonged zero-airflow idling along Jakarta's infamous traffic jams.
Navigating Indonesia's TKDN Regulations & Import Dynamics
Understanding the legal, technical, and supply chain prerequisites for importing Chinese DC-DC power electronics into Jakarta's automotive sector.
TKDN Component Strategy
Under Indonesian Ministry of Industry mandates, automotive OEMs must progressively increase the Domestic Component Level (Tingkat Komponen Dalam Negeri). While core power semiconductor modules are imported from specialist Shenzhen plants, Eltrum supports local assemblers with SKD/CKD packaging, custom wire harnesses, and buyer-labeled chassis to help clients hit their national value-add milestones.
Compliance & SNI Standards
Our complete power catalog complies with international CE (EN 55032/EN 55035 Class B for electromagnetic compatibility) and RoHS standards. Our testing ensures equipment complies with Indonesian National Standards (SNI) for automotive electronic immunity, protecting sensitive bus telematics from radio-frequency degradation.
Direct Shenzhen–Tanjung Priok Logistics
Capitalizing on direct sea-freight corridors between Shenzhen/Guangzhou and Jakarta's Tanjung Priok container terminals. Transit times average just 5–8 days, supported by complete Form E certificates of origin under the ASEAN-China Free Trade Area (ACFTA) to secure preferential import duty tariffs.
Shenzhen Eltrum Electronic: Your Trusted Tier-1 Automotive Power Partner
Established in 2015 in the global electronics innovation capital of Shenzhen, Shenzhen Eltrum Electronic Co., Ltd. has grown into an international leader in DC-DC conversion, battery charging, and high-reliability power modules. Operating under an ISO 9001 certified quality management system, our state-of-the-art facility features automated SMT placement lines, robotic potting dispensers, and multi-stage automated optical inspection (AOI) machines.
Every single power unit leaving our production line undergoes 100% full-load thermal burn-in testing, high-voltage dielectric withstand verification, and cyclic surge stressing. We do not compromise on reliability: our field failure rate remains below 0.12% across more than 130 export countries.
Whether you are designing a high-capacity electric bus for the Jakarta provincial government, upgrading an inter-city truck fleet, or retrofitting utility vehicles for island mining, Eltrum delivers uncompromising Chinese manufacturing value with tier-one engineering rigor.
Jakarta Automotive Procurement: Frequently Asked Questions
Essential technical and commercial answers for purchasing managers, electrical engineers, and fleet contractors sourcing DC-DC converters for Indonesian vehicle projects.
Q1: How do Eltrum DC-DC converters survive high ambient temperatures and humidity in Jakarta?
Our converters are engineered with high-grade automotive-rated silicon carbide (SiC) and planar MOSFET switches designed for junction temperatures up to 150°C. Thermally conductive polyurethane potting completely encapsulates all magnetics and semiconductors, transferring heat directly to our ribbed aluminum chassis. This guarantees safe operation without de-rating up to +60°C ambient, while solid encapsulation prevents tropical moisture ingress and board corrosion.
Q2: When should a fleet engineer specify an Isolated vs. Non-Isolated converter?
Non-isolated converters share a common negative ground, offering maximum efficiency (up to 96.5%), a smaller footprint, and lower costs. These are ideal for general auxiliary lighting, USB charging hubs, and standard truck cab accessories. Isolated converters incorporate an internal high-frequency transformer barrier (1500V DC galvanic separation). They are required for high-voltage EV traction integration, noise-sensitive GPS/radio systems, and positive-ground systems to eliminate ground-loop current spikes.
Q3: Can these converters handle load-dump surges from commercial vehicle alternators?
Yes. Automotive electrical buses experience severe voltage spikes (up to 80V or more) during sudden battery disconnections while the alternator charges. Eltrum converters integrate multi-stage transient voltage suppressor (TVS) diodes, metal oxide varistors (MOVs), and heavy-duty input choke coils that meet ISO 7637-2 transient immunity requirements, safeguarding onboard electronics.
Q4: What are the lead times and shipping logistics from Shenzhen to Jakarta?
Sample orders (5 to 20 units) typically dispatch within 3–5 working days via express air freight (DHL/FedEx/SF International), arriving at Jakarta Soekarno-Hatta International Airport in approximately 3 days. Volume production orders ship via direct ocean freight from Shenzhen Port to Tanjung Priok, taking approximately 5–8 days sailing time. We provide all necessary ACFTA Form E documentation to facilitate smooth Indonesian customs clearance and reduce import duties.
Q5: Can Eltrum customize the output voltage for specialized LiFePO4 battery chemistries?
Yes. As an original design manufacturer (ODM), we routinely customize charging profiles and output set-points. For instance, we can configure a 12V system to a precise 14.6V absorption voltage for 4S LiFePO4 packs, 29.2V for 8S packs, or 58.4V for 16S packs. Custom current limits, low-voltage input cutoffs, and RS485/CAN communication monitoring are readily available upon request.
Q6: What is the warranty policy and after-sales engineering support for Indonesian clients?
All Eltrum industrial and automotive-grade DC-DC converters carry a comprehensive standard 24-month replacement warranty. Our bilingual application engineering team is available via direct video conference or instant messaging to assist your technical staff with schematic reviews, wiring sizing calculations, thermal dissipation assessments, and live bench testing troubleshooting.