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Mean Well DDR-15L-3.3 DC-DC Converter - 11.6W - 18~75V in 3.3V out
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Mean Well DDR-15L-3.3 DC-DC Converter - 11.6W - 18~75V in 3.3V out
Description
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
Specifications
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BrandMean Well
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SeriesDDR Series
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Power Rating15 Watt
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Output Voltage3.3 Volt
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Rated Current4.5 Ampere
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Input Voltage18V~75V
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No of Output1
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Dimming ControlNone
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Standards MetCE,EAC,EMC
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Operation ModeConstant Voltage
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Operating Temperature-40°C~85°C
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Warranty2 Year
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Length3.54 in
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Width2.15 in
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Height0.69 in
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Weight0.15 lb
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the DDR-15L-3.3 to power 3.3V microcontrollers or FPGAs from a 48V DC bus?
Yes. The DDR-15L-3.3 accepts 18-75V DC input and outputs 3.3V at up to 4.5A. This makes it suitable for powering 3.3V microcontrollers, FPGAs, or other digital logic boards directly from a 48V telecom or industrial DC bus through DIN rail mounting.
Is the DDR-15L-3.3 a good fit for powering IoT gateway boards in a 48V solar-powered installation?
Yes. The 18-75V input range accommodates 48V battery systems, and the 3.3V/4.5A output can power IoT gateways, Raspberry Pi-class boards (with appropriate regulation), or LoRa/Zigbee communication modules. The 4KVdc I/O isolation protects sensitive IoT electronics from the solar battery bus.
Can the DDR-15L-3.3 power 3.3V RS-485 transceivers or serial communication modules on DIN rail?
Yes. The DDR-15L-3.3 provides 3.3V at up to 4.5A, which is more than sufficient for RS-485 transceivers, serial-to-Ethernet converters, or communication interface boards. Its ultra-slim 17.5 mm width conserves valuable DIN rail space in crowded communication panels.
Does the DDR-15L-3.3 need derating at elevated ambient temperatures?
The DDR-15L-3.3 is rated for -40°C to +85°C operation. Like most power converters, some derating may apply at the upper end of this range. Consult the Mean Well datasheet for the specific derating curve to ensure full 4.5A output is available at your expected ambient temperature.
How does the DDR-15L-3.3 compare to the DDR-15G-3.3 for 3.3V applications?
The DDR-15G-3.3 accepts 9-36V DC input at 3.5A output, while the DDR-15L-3.3 accepts 18-75V DC input at 4.5A output. Choose the G variant for 12V or 24V source buses, and the L variant for 48V or higher-voltage DC systems. Both share the same ultra-slim DIN rail form factor.
Can this converter supply 3.3V logic power for embedded data acquisition systems in remote utility substations?
Yes. The DDR-15L-3.3 is well suited for remote substations where a 48V DC bus is common. It can power 3.3V data acquisition boards, RTUs, or protocol converters. The -40°C to +85°C operating range and fanless design make it reliable in unattended outdoor enclosures.
Other DDR-15L Models
4 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well DDR-15L-5 DC-DC Converter - 15W - 18~75V in 5V out | 15W | 5V | 3A | Indoor | $22.36 | View |
| Mean Well DDR-15L-12 DC-DC Converter - 15W - 18~75V in 12V out | 15W | 12V | 1.25A | Indoor | $18.37 | View |
| Mean Well DDR-15L-24 DC-DC Converter - 15W - 18~75V in 24V out | 15W | 24V | 0.63A | Indoor | $22.36 | View |
| Mean Well DDR-15L-15 DC-DC Converter - 15W - 18~75V in 15V out | 15W | 15V | 1A | Indoor | $19.67 | View |
