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Mean Well DDR-15L-5 DC-DC Converter - 15W - 18~75V in 5V out

2:1 or 4:1 wide input range, fanless design, 4KVdc I/O isolation, ultra slim dimensions

SKU:

DDR-15L-5

Model

15W - 5V out - 9~36V in

SKU: DDR-15G-5

15W - 5V out - 18~75V in

SKU: DDR-15L-5

30W - 5V out - 9~36V in

SKU: DDR-30G-5

30W - 5V out - 18~75V in

SKU: DDR-30L-5

60W - 5V out - 9~36V in

SKU: DDR-60G-5

60W - 5V out - 18~75V in

SKU: DDR-60L-5

Product variants

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Description

Features

Width only 17.5mm (1SU)

DC output adjustable ( 10%)

4:1 ultra wide input range

No minimum load required

Protections: Short circuit / Overload / Over voltage /Input reverse polarity / Input under voltage protection

4KVdc I/O isolation(Reinforced isolation)

Can be installed on DIN rail TS-35/7.5 or 15

-40~+85°C wide working temperature

Cooling by free air convection

3 years warranty

General Specification

Over current protection	110%~150% rated output power;Protection type:Hiccup mode, recovers automatically after fault condition is removed
Over voltage protection	3.3V:3.8~4.7V ; 5V:5.75~7V ; 12V:13.8~16.2V ; 15V:17.25~20.25V ; 24V:28.8~32.4V; Protection mode:Shut down o/p voltage, re-power on to recover
REVERSE POLARITY	By internal MOSFET, no damage, recovers automatically after fault condition removed
Withstand voltage	I/P-O/P:4KVDC
Working temperature	-40~+85°C (Refer to ""Derating Curve"")
Safety standards	IEC 62368-1 (LVD) approved, Design refer to UL508
EMC standards	With external components Compliance to EN55032 Class B;EN61000-3-,3，EN61000-4-2,3,4,5,6,8
Dimension (LxWxH)(mm)	17.5 x 90 x 54.5 mm

Specifications

Brand

Mean Well
Series

DDR Series
Power Rating

15 Watt
Output Voltage

5 Volt
Rated Current

3 Ampere
Input Voltage

18V~75V
Standards Met

CE,EAC,EMC
Operation Mode

Constant Voltage
Operating Temperature

-40°C~85°C
Warranty

2 Year
Length

9 cm
Width

5.45 cm
Height

1.75 cm
Weight

0.07 kg

File Downloads

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Frequently Asked Questions

Can I use the DDR-15L-5 to power 5V embedded systems from a 48V telecom bus?

Yes. The DDR-15L-5 accepts 18-75V DC input and outputs 5V at up to 3A (15W). It is designed for exactly this kind of application, converting 48V telecom or industrial DC buses to 5V for embedded computers, single-board PCs, or USB-powered peripherals.

Is the DDR-15L-5 suitable for powering 5V LED status indicators and small displays in a 48V battery-backed control panel?

Yes. The DDR-15L-5 can take 48V battery bus power (within its 18-75V range) and provide a stable 5V/3A output for LED indicators, small character LCDs, or OLED displays inside control panels. The 4KVdc I/O isolation protects display electronics from battery bus fluctuations.

Can this converter power 5V Raspberry Pi or similar SBCs in an industrial enclosure fed from a 24V or 48V bus?

The DDR-15L-5 requires a minimum 18V input, so a 24V bus (typically 20-28V) falls within range. It provides 5V at 3A (15W), which is sufficient for most Raspberry Pi models and similar single-board computers running light workloads. For higher-current SBCs, verify total power draw stays under 15W.

How does the DDR-15L-5 differ from the DDR-15G-5?

Both converters output 5V at 3A (15W) in the same ultra-slim DIN rail housing. The DDR-15G-5 accepts 9-36V DC input, making it ideal for 12V or 24V source buses. The DDR-15L-5 accepts 18-75V DC input, making it the right choice for 48V telecom or higher-voltage DC systems.

Can the DDR-15L-5 operate reliably inside sealed IP65 enclosures without ventilation?

The DDR-15L-5 uses a fanless convection-cooled design, so it does not require airflow openings. It is rated for operation up to +85°C. In a sealed enclosure, ensure the internal ambient temperature stays within this limit, especially in direct-sun outdoor installations where enclosure temperatures can rise significantly.

Can I use the DDR-15L-5 to power 5V USB-based diagnostic equipment in mining or heavy equipment with a 48V electrical system?

Yes. The 18-75V input range covers 48V nominal systems used in mining vehicles and heavy equipment. The DDR-15L-5 provides 5V/3A for USB diagnostic tools, portable data loggers, or monitoring interfaces. Its -40°C to +85°C rating handles the temperature extremes found in these environments.

Model	Power	Voltage	Current	IP Rating
Mean Well DDR-15L-12 DC-DC Converter - 15W - 18~75V in 12V out	15W	12V	1.25A	Indoor	View
Mean Well DDR-15L-3.3 DC-DC Converter - 11.6W - 18~75V in 3.3V out	15W	3.3V	4.5A	Indoor	View
Mean Well DDR-15L-24 DC-DC Converter - 15W - 18~75V in 24V out	15W	24V	0.63A	Indoor	View
Mean Well DDR-15L-15 DC-DC Converter - 15W - 18~75V in 15V out	15W	15V	1A	Indoor	View

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