Isolated DC Converter, 48V to 12V

SKU: PH-IDCDC-4812

$93.69

● The 48V to 12V isolated DC converter has an input voltage range of 36V-75V DC. ● The output voltage is 12V DC, the maximum output current is 10 amps, the output power is 120 watts, and the conversion efficiency is 92%. ● Built-in automatic protection functions such as short circuit, overcurrent, overvoltage, and overtemperature, with high output stability. ● The waterproof level of the isolated DC converter is IP65, and the die-cast aluminum alloy shell is small and easy to install.

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Overview
Specs
Application
FAQ
Reviews

Overview

Low price 48V-12V isolated DC converter adopts synchronous rectification technology and has the characteristics of high efficiency and high power density. Its input voltage range is 36V-75V DC, the output voltage is 12V DC, the output current is 10A, the output power is 120W, and the conversion efficiency is as high as 92%. Isolated DC-DC converters are widely used in step-down converters in the fields of artificial intelligence, communication base stations, industrial control, etc.

Feature

Isolated DC power supply module, wide voltage input, high stability output.
Built-in automatic protection functions such as overcurrent, overvoltage, overhumidity, short circuit, reverse connection, etc.
The working environment temperature is -40℃~+55℃, which can be used in different environments.
Adopt high-quality components with a service life of up to 100,000 hours.

Details

Adopt die-cast aluminum alloy shell, compact structure, small size and easy installation.
The DC-DC isolated converter adopts high-quality thermal conductive silicone potting, which is waterproof, dustproof and shockproof.
The pure copper inductor with magnetic core effectively filters out oscillations and traps, ensuring the stability of the power supply.
Adopt SMT components, the power supply has high integration, reliability and stability.

Dimension (unit: mm)

Isolated DC converter 48V to 12V dimension

Various Circuits for Driving EN

Isolated DC converter 48V to 12V various circuits for driving the EN

Input Undervoltage Protection: The converter will shut down after the input voltage drops below the under voltage protection threshold for shutdown. The converter will start to work again after the input voltage reaches the input under voltage protection threshold for startup.

Output Overcurrent Protection: The converter equipped with current limiting circuitry can provide protection from an output overload or short circuit condition. If the output current exceeds the output overcurrent protection set point, the converter enters hiccup mode. When the fault condition is removed, the converter will automatically restart.

Wiring Diagram

Isolated DC converter 48V to 12V wiring

Specs

Input
Input Voltage	36-75V (Typ. 48V)
Max. Input Voltage	78V
Undervoltage Shutdown	30-36V (Automatic Recovery)
Undervoltage Recovery	31-36V (Automatic Recovery)
Max. Input Current	5A (Vin=36V; Iout=10A)
No Load Current	300mA (Typ. 80mA; Vin=48V)
Positive Electrode Cable	16 AWG (Recommend)
Negative Electrode Cable	16 AWG (Recommend)
Enable Pin Cable	/
Fuse	7.5A
Output
Efficiency	92% (Vin=48V; Iout=10A)
Output Voltage	11.65-12.35V (Vin=48V; Iout=10A)
Regulator Accuracy	±2%
Voltage Regulation
Load Regulation
Overvoltage Protection	13.8-15V (Hiccup mode)
Output Current	0-10A
Overcurrent Protection	10.5-14A
External Capacitance	0-2000μF
Output Ripple and Noise	200mVp-p (Vin=36-75V; Oscilloscope Bandwidth: 20 MHz)
Output Voltage Rise Time	50mS
Boot Delay Time	100mS
Out Voltage Overshoot	5% (Vin=12V, 50%-75% Load Step)
Over Temperature Protection	85°C (Shell temperature, @ 80°C Restore working)
Short Circuit Protection	Long-term (4 hours) short circuit is not damaged, Hiccup mode
Positive Electrode Cable	16 AWG (Recommend)
Negative Electrode Cable	16 AWG (Recommend)
Safety and EMC Features
Anti-electric Strength	Input to output: ≥1500V (Leakage Current ≤ 3.5mA, 1min, No Breakdown, No Arcing)
	Input to shell: ≥1500V (Leakage Current ≤ 3.5mA, 1min, No Breakdown, No Arcing)
	Output to shell: ≥1500V (Leakage Current ≤ 3.5mA, 1min, No Breakdown, No Arcing)
Insulation Resistance	Input to output: ≥50MΩ (Test Voltage =500V)
	Input to shell: ≥50MΩ (Test Voltage =500V)
	Output to shell:≥50MΩ (Test Voltage =500V)
Absolute Maximum Ratings
Operating Ambient Temperature	-40-50℃
Shell Ambient Temperature	-40-80℃
Storage Temperature	-55-100℃
Operating Humidity	5-95% (Non-condensing)
Atmospheric Pressure	62-106Kpa
Altitude	4000m
Cooling Way	Natural cooling
Other
Weight	≤250g
Package	Color Box
MTBF	≥200000H (Vin=48V; Iout=10A)
Switching Frequency	250±30kHz

48V to 12V, 10A DC-DC Isolated Converter User Manual

Application

Automatic Control

Electronic Communication

LED Display Screen

Car Audio

FAQ

Q1: What is an isolated DC converter?

An isolated DC converter is a power conversion device with electrical isolation between input and output. It uses isolation components such as transformers to achieve physical electrical disconnection between the input and output. This isolation is mainly used to protect equipment and personnel safety and prevent voltage fluctuations or faults from being transmitted from the input side to the output side. It is common in industries such as industry, power, medical care, and communications.

Q2: What are the benefits of isolated DC converters?

The biggest advantage of isolated DC converters is electrical safety and system stability. It can effectively prevent ground loop interference and high-voltage breakdown from damaging sensitive circuits, and is especially suitable for high-voltage difference scenarios or situations where multiple systems need to be powered independently. At the same time, it can also improve anti-electromagnetic interference (EMI), improve signal integrity, support multi-output voltage design, and provide flexible and safe power support for complex system architectures.

1 review(s)

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From: Marshall | Date: 7/23/2026 1:21 AM

Solid 48V to 12V Converter!

Bought this for my DIY solar setup to run 12V gear off my 48V battery bank. Works like a charm! Output stays steady at 12V, and the die-cast aluminum housing feels rugged and well-built. It runs super cool thanks to the solid heat sink, and installation was quick with the screw terminals. Efficiency is great—no noticeable power loss. Definitely a reliable step-down converter for any power project!