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Isolated Step Down DC DC Converter 48V 60V 72V 90V to 12V 42A 500W DC Charger Converter
Product Description
Products Description
● 1. Main Circuit Board
Constructed with high-grade fireproof board for enhanced operational security and long service life.
● 2. Enclosure / Shell
Premium aluminum casing equipped with shielding properties that minimize conducted and radiated interference to peripheral electronics while ensuring optimal heat dissipation.
● 3. Circuit Technology
Adopts state-of-the-art high-frequency inverter technology and an ISOLATED circuit structure, offering significantly superior stability and safety compared to non-isolated topologies.
● 4. Wide Input Range
Supports broad 40–90V DC input compatibility, seamlessly matching various electric vehicle battery bank configurations, including 48V, 60V, and 72V DC battery systems.
Product Parameters
| Brand | YUCOO |
| Model | YK-DD42-90S1242 |
| Input Voltage | 42–90V DC |
| Input Current | < 1.5A (Full load) |
| Working Frequency | 50KHz |
| Output Voltage | 12.2 ± 0.3V |
| Output Current | 0 ~ 42A |
| Maximum Power | 500W |
| Efficiency | 86% |
| Voltage Stability | < 1% |
| Load Stability | < 1.5% |
| Insulation Resistance |
> 50MΩ between input and output > 50MΩ between input and housing > 50MΩ between output and case |
| Dimension | 200 * 128 * 66 mm |
| Weight | 1.76 kg |
Details Images & Model Selection Guide
BUCK DC-DC CONVERTER MODEL LIST
| Model Series | Input-V | Output-V | Output Current Options |
|---|---|---|---|
| YK-DD1224S5** | 12V/24V | 5V | 3A | 5A | 10A | 15A | 20A | 30A | 40A | 50A | 60A |
| YK-DD24S12** | 24V | 12V | 1.5A | 3A | 5A | 8A | 10A | 15A | 20A | 30A | 40A | 50A | 60A | 85A | 100A |
| YK-DD24S13.8** | 24V | 13.8V | 5A | 10A | 15A | 20A | 30A | 40A | 50A | 60A |
| YK-DD24S19** | 24V | 19V | 5A | 10A | 15A |
| YK-DD36S12** | 36V | 12V | 5A | 10A | 15A | 20A | 30A | 50A | 60A |
| YK-DD48S5** | 48V | 5V | 5A | 10A | 15A | 20A |
| YK-DD48S12** | 48V | 12V | 5A | 10A | 15A | 20A | 30A | 50A | 60A |
| YK-DD48S13.8** | 48V | 13.8V | 5A | 10A | 15A | 20A | 30A | 40A | 50A | 60A |
| YK-DD48S19** | 48V | 19V | 5A | 8A | 10A |
| YK-DD48S24** | 48V | 24V | 3A | 5A | 10A | 15A | 20A | 30A | 40A | 50A |
| YK-DD60S12** | 60V | 12V | 5A | 10A | 15A |
| YK-DD60S24** | 60V | 24V | 5A | 10A |
BOOST DC-DC CONVERTER MODEL LIST
| Model Series | Input-V | Output-V | Output Current Options |
|---|---|---|---|
| YK-DD12S24** | 12V | 24V | 1A | 2A | 3A | 5A | 8A | 10A | 15A | 20A | 25A | 30A | 40A | 50A |
| YK-DD12S19** | 12V | 19V | 5A | 8A | 10A | 15A | 20A |
| YK-DD12S28** | 12V | 28V | 3A | 5A | 8A | 10A | 15A | 20A | 25A | 30A | 40A |
| YK-DD12S36** | 12V | 36V | 1A | 2A | 3A | 5A | 6A | 8A | 10A | 20A | 30A | 40A |
| YK-DD12S48** | 12V | 48V | 1A | 2A | 3A | 4A | 8A | 10A | 15A | 20A |
| YK-DD24S48** | 24V | 48V | 3A | 5A | 10A | 20A | 30A | 40A |
| YK-DD24S36** | 24V | 36V | 5A |
BUCK & BOOST DC-DC CONVERTER MODEL LIST
| Model Series | Input-V | Output-V | Output Current Options |
|---|---|---|---|
| YK-DD12S12** | 8–40V | 12V | 1A | 2A | 3A | 5A | 6A | 10A | 15A | 20A | 25A |
| YK-DD12S13.8** | 8–40V | 13.8V | 3A | 5A | 10A | 15A | 20A | 25A |
| YK-DD24S24** | 9–40V | 24V | 2A | 3A | 4A | 6A | 10A | 15A |
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Frequently Asked Questions (FAQ)
Q What is the advantage of an isolated DC-DC converter over a non-isolated one?
An isolated DC-DC converter offers electrical isolation between the input and output circuits, providing enhanced protection against electrical noise, surges, ground loops, and potential shock hazards, resulting in much higher equipment safety and operational reliability.
Q Can this converter operate with fluctuating battery voltages?
Yes. With an ultra-wide input voltage range of 40V to 90V DC, this converter automatically stabilizes fluctuating power from standard 48V, 60V, or 72V DC battery systems without interrupting output stability.
Q How does the aluminum casing improve converter performance?
The heavy-duty aluminum enclosure functions as both an efficient heat sink for passive thermal dissipation and an electromagnetic shielding shell, significantly reducing EMI conduction and radiation to surrounding electronics.
Q What primary applications is the model YK-DD42-90S1242 designed for?
It is specifically engineered for automotive electronics, electric vehicles (EVs), golf carts, forklifts, telecom installations, and industrial equipment requiring an efficient conversion from high battery voltage to a stable 12V DC auxiliary output.
Q What built-in safety protections are featured in this series?
The converter is manufactured on a fireproof circuit board with comprehensive insulation resistance ratings (>50MΩ between input, output, and case) to defend against electrical breakdowns, operational degradation, and thermal strain.
