MEAN WELL DC/DC Converters: Full Product Line Introduction
Brand: MEAN WELL
Contact: info@menawell.com
Introduction to DC/DC Converters
Why Choose DC/DC Converters?
- ✔️ AC-DC + DC-DC for multi-output applications.
- ⚡ Solve voltage drop issues in long system wiring.
- ? Power equipment in locations without AC power.
- ? Reduce ripple and noise in power systems.
- ?️ Enhance equipment safety through multi-layer isolation.
?️ Basic symbol for a DC/DC converter showing DC input and DC output.
Application Scenarios
AC/DC + DC/DC for Multi-Output and Voltage Drop Solutions
?️ Diagram: Utility AC input (90-264Vac) feeds an AC/DC power supply (48Vdc output). This can then feed into an Isolated DC/DC converter (12Vdc output) for the Load. Alternatively, the 48Vdc can be further processed by various DC/DC converters (Isolated and Boost Non-Isolated) to provide multiple outputs (3.3Vdc, 5Vdc, 15Vdc, ±12Vdc, ±15Vdc) to the Load. Notes indicate "Voltage drop due to cable length" affecting a 10Vdc output. Application: Data center, Telecom, Networking.
No AC Power (1): Requiring DC Power - Railway, Automotive, Marine
?️ Diagram: A DC input (24-110Vdc) is stabilized by a DC/DC converter (12/24/48Vdc output). This feeds an Isolated DC/DC converter (5Vdc output), which then goes to another Isolated DC-DC converter for a 5Vdc Load (Railway). A parallel path shows a Non-Isolated converter for noise reduction.
No AC Power (2): Requiring DC Power - Remote Mountains, Photovoltaic Power Generation
?️ Diagram: Solar Photovoltaic Arrays connect to a PV Combiner Box (150-1500Vdc). This feeds a Monitoring Controller with MPPT and Battery. The controller outputs power to a Grid Inverter, connecting to the Utility. Example outputs: 5Vdc for MCU/Sensor, 12Vdc for Control signal, 24Vdc for Motor. Application: Remote areas, solar power generation.
System Safety Upgrade: Need for Multi-layer Isolation
?️ Diagram: Utility AC input (90-264Vac) powers an AC/DC supply (24Vdc output). This feeds a "Medical grade DC/DC converter (Reduce leakage current & MOPP*2)" providing multiple outputs (3.3 Vdc, 5 Vdc, 12 Vdc, 15 Vdc, ±12 Vdc, ±15 Vdc) to a Load, designated as a "Medical device".
Product Classification
| Type | Series | Power Range | Application |
|---|---|---|---|
| Enclosed Type (機殼型) | SD Series | 15~1000W | Industrial |
| RSD Series | 30~500W | Industrial/Railway | |
| RSDH Series | 150~300W | Solar/Energy Storage | |
| Enclosed Type (導軌型) | DDR Series | 15~480W | Industrial/Railway |
| DDRH Series | 15~240W | Solar Energy/Energy Storage Facilities/High Voltage DC Systems | |
| Board Type (基板型) | PSD Series | 15~40W | Industrial |
| Module Type (插板型) | Encapsulated (灌膠) | 0.5~150W | SMD, SIP, DIP24, 1"x1", 2"x1", 2"x2", Brick |
| Non-encapsulated (非灌膠) | 5~15W | NSD Series (Isolated) | |
| 35~100W | NID Series (Non-isolated) |
Product Roadmap
Enclosed Type
?️ Chart showing Enclosed Type DC/DC converters by category (Information/Communication, Railway/Transportation, Solar/Energy Storage) and Wattage, listing SD, RSD, and RSDH series.
Rail Type
?️ Chart showing Rail Type DC/DC converters by category (Information/Communication, Information/Communication & Railway, Solar Energy/Energy Storage/High Voltage DC) and Wattage, listing DDR and DDRH series.
Board Type and Module Type
?️ Chart showing Board Type and Module Type (Non-encapsulated) DC/DC converters by category and Wattage, listing PSD, NSD, and NID series.
Encapsulated Module Type
?️ Chart showing Encapsulated Module Type DC/DC converters by category (Information/Communication, Industrial Control) and size (SMD, SIP, DIP, 1"x1", 2"x1", 2"x2", Brick) and Wattage.
Encapsulated Module Type (Continued)
?️ Chart showing Encapsulated Module Type DC/DC converters by category (Railway, Medical, LED Lighting) and Wattage.
Quick Selection Tables
Railway DC-DC Quick Selection Table
| Installation Method | Series Name | Package | Wattage (W) | Input Voltage (Vdc) | Output Voltage (Vdc) | Operating Temperature | Safety Certifications | Dimensions (L x W x H) |
|---|---|---|---|---|---|---|---|---|
| Encapsulated Module (On PCB) | RSDW/RDDW08 | DIP24 | 8 | F: 9~36V G: 18~75V |
Single: 3.3/5/12/15V Dual: ±5/12/15V |
-40 ~ +85°C | CB/UL/EAC/ CE/UKCA (Model dependent) |
31.8*20.8*10.2 mm |
| RSDW/RDDW10 | 10 | H: 43~160V | 50.8*25.4*10.2 mm | |||||
| RSDW/RDDW20 | 20 | 8.5~160V | Single: 5/12/15V Dual: ±12/15/24V |
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| RSDW/RDDW20UW | 2" x 1" | 20 | ||||||
| RSDW/RDDW40 | 40 | F: 9~36V G: 18~75V |
Single: 3.3/5/12/15/24/48V Dual: ±12/15V |
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| RSDW/RDDW60 | 60 | H: 40~160V | ||||||
| RQB40W12 | 1/4 Brick | 40 | 14~160V | Single: 5/12/24/48/54V | -40 ~ +90°C | 57.9*36.8*12.7mm | ||
| Enclosed Type (Terminal block) | RQB150W3 | Brick | 150 | 60~160V | Single: 12/24/48/54V | -40 ~ +90°C | 57.9*36.8*12.7mm | |
| RSD-30 | 30 | G: 9~36V L: 18~72V |
Single: 3.3/5/12/15/24V | -40~+70°C | CB/UL/EAC/ RCM/CE/UKCA |
113*60*25 mm | ||
| RSD-60 | 60 | H: 40~160V | 128*60*25 mm | |||||
| RSD-100 | 100 | B: 16.8~31.2V C: 33.6~62.4V |
Single: 5/12/24/48V | 161*68*36 mm | ||||
| RSD-150 | 150 | D: 67.2~154V | Single: 12/24/48V | 189*77*36 mm | ||||
| RSD-200 | 200 | E: 25.2~46.8V | 191*86*40 mm | |||||
| RSD-300 | 300 | F: 50.4~93.6V | Single: 5/12/24/48V | 216*96.5*40 mm | ||||
| RSD-500 | 500 | Single: 12/24/48V | -40~+80°C | 237*100*41 mm | ||||
| Rail Type (Rail mount) | DDR-120 | 120 | A: 9~18V B: 16.8~33.6V C: 33.6~67.2V D: 67.2~154V |
Single: 12/24/48V | -40~+70°C | CB/UL/EAC/ RCM/CE/UKCA |
32*125.2*102 mm | |
| DDR-240 | 240 | Single: 24/48V | -40~+70°C | 40*125.2*113.5 mm | ||||
| DDR-480 | 480 | Single: 12/24/48V | -40~+80°C | 85.5*125.2*128.5 mm |
Solar/Energy Storage DC-DC Quick Selection Table
| Installation Method | Series Name | Wattage (W) | Input Voltage (Vdc) | Output Voltage (Vdc) | Operating Temperature | Parallel Function | Safety Certifications | Dimensions (L x W x H) |
|---|---|---|---|---|---|---|---|---|
| Module Type (On-Board) | DDRH-15 | 15W | 150~1500Vdc | 5V/12V/15V / 24V | -40~+80°C | X | EAC/CE/UKCA (IEC62109-1) |
P: 76.2*50.8*25mm ST: 122.3*57.3*31.2mm DR: 122.3*57.3*31.2mm |
| DDRH-30 | 30W | 12V / 15V / 24V | P: 89*63.5*25mm ST: 135*70*31.2mm DR: 135*70*31.2mm |
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| DDRH-45 | 45W | |||||||
| Rail Type (Rail mount) | DDRH-60 | 60W | 150~1500Vdc | 5V / 12V / 24V / 48V | -30~+80°C | X | CB/DEKRA/ EAC/CE/UKCA (IEC/EN62109-1) |
57*93.5*105 mm |
| DDRH-120 | 120W | 63*125.2*115mm | ||||||
| DDRH-240 | 240W | 12V / 24V / 32V / 48V | 85.5*125.2*129.2 mm | |||||
| Enclosed Type (Terminal block) | RSDH-150 | 150W | 250~1500Vdc | -40~ +80°C | X | 191*86*41mm | ||
| RSDH-300 | 300W | 237*100*41mm |
Note: P = PCB mount, ST = Screw Terminal, DR = DIN Rail type.
Product Features
Multiple Installation Methods
| Installation Method & Description | Applicable Scenarios | Applicable Series & Wattage |
|---|---|---|
| Enclosed Type (Terminal block wiring): Terminal block wiring, flexible. | Indoor equipment | SD-15~1000 series RSD-30~500 series RSDH-150~300 series |
| Rail Type (Snap-on rail mounting): Easy installation, integrated wiring. | Electrical cabinet rails | DDR-15~480 series DDRH-60~240 series |
| Board Type (Screw mounting holes): Fixed screw mounting. | Indoor equipment | PSD-15~45 series |
| On-Board Type (PIN type for PCB): Solder onto PCB. Small component for PCB mounting. | Component for PCB mounting | NSD05~15 series NID35~100 series Module Type -0.5~150W |
Multiple Input Voltage Ranges Available
| Input Voltage Range | Application Scenarios | Applicable Series & Wattage |
|---|---|---|
| ±10% (4.5 ~ 52.8Vdc) |
Information/Communication Instruments: Primarily for isolation and filtering. Not suitable for unstable DC input (e.g., battery). | 0.5~3W: SRS, SBTN/SFTN/DETN series MDS/MDD, SPU/SPUN, SMA, SMU series 1~500W: SPA/SPAN/SPB, SCW/DCW, SLC/DLC, SLW/DLW, SKM/DKM/SKE/DKE, SKA/DKA/TKA, MHB, PSD, SD-15~350, RSD-100~500 series |
| 2:1 (9~75Vdc) |
Information/Communication/Industrial/Medical: Primarily for voltage conversion. | 1~500W: SPA/SPAN/SPB, SCW/DCW, SLC/DLC, SLW/DLW, SKM/DKM/SKE/DKE, SKA/DKA/TKA, MHB, PSD, SD-15~350, RSD-100~500 series |
| 3:1 (60~160Vdc) |
Railway Transportation: 110Vdc dedicated input. | 150W: RQB150W3 |
| 4:1 (9~160Vdc) |
Information/Communication/Industrial: Primarily for voltage conversion, wider range than 2:1. | 3~1000W: NSD, SCWN/DCWN, SPBW/DPBW, SKMW/DKMW, RSDW/RDDW, LDD/NLDD, LDB series, RSD-30~60, SD-500~1000 series 15~300W: DDRH / RSDH series 40W: RQB40W12 |
| 10:1 (150~1500Vdc) |
Solar PV / Energy Storage / High Voltage DC Systems: DC input from solar PV arrays or batteries. | 15~300W: DDRH / RSDH series |
| 12:1 (14~160Vdc) |
Railway Transportation: 24/48/72/96/110Vdc dedicated input. | 20W: RSDW/RDDW20UW series |
| 18:1 (9~160Vdc) |
Railway Transportation: 24/48/72/96/110Vdc dedicated input. | 20W: RSDW/RDDW20UW series |
Multiple I/O Isolation Voltages
| Input-Output Isolation Voltage | Applicable Scenarios | Applicable Series & Wattage |
|---|---|---|
| 1~1.5KV | Information Instruments, Networking Equipment... | 0.5~1000W: NSD, PSD, SD, SRS, SUS, SPU/SPRN, SPAN/DPAN, SPBW/DPBW, SCW/DCW, SKMW/DKMW, SLW/DLW, SKE/DKE, SKA/DKA, MHB series... |
| 3KV | Industrial Equipment, Smart Meters... | 1~60W: SBTN/SFTN/DETN, SPU, SCWN/DCWN, RSDW/RDDW series |
| 4KV | Railway Transportation... | 8~500W: RSD, DDR, RSDH, DDRH series |
| 6KV | Medical Devices, Harsh Environments... | 1~20W: MDS/MDD series |
Multi-Domain Safety Certifications
| Series Name | Safety Certifications | Application Examples |
|---|---|---|
| PSD-15~45 series, NSD05~15 series NID35~100 series, RSD-30~500 series DDR-15~480 series |
Information/Communication 62368-1 Certified (UL, EAC, CB, CE, UKCA) | ?️ Image of server racks. |
| DDRH-15~240 series RSDH-150/300 series |
Solar IEC 62109-1 Certified (DEKRA, EAC, CB, CE, UKCA) | ?️ Image of solar panels. |
| RSDW08~60 series, RDDW08~60 series RQB40/150 series RSD-30~500 series, DDR-120~480 series |
Railway EN50155 Certified (UL, EAC, CB, CE, UKCA) | ?️ Image of a train control panel. |
| MDD01~02 series, MDS01~15 series | Medical 60601-1 Certified (EAC, CE, UKCA) | ?️ Image of medical staff using equipment. |
| LDD, LDB, LDH series | LED EN55015 Lighting Regulations (EAC, CE, UKCA) | ?️ Image of LED grow lights in a plant factory. |
Product Advantages
- Brand Reputation: International brand recognition, transparent product information, comprehensive marketing activities, reliable power partner.
- Complete Distribution Network: Global sales, fast localized service, standard products in stock (large quantities within 30 days).
- Comprehensive Product Line: Wide range of wattages (0.5~1000W), diverse models, multiple installation styles (enclosed, rail, board, on-board PIN), broad input voltage ranges (±10%, 2:1, 4:1, 10:1, 12:1, 18:1), and output configurations (single, dual, triple).
- Wide Application Fields: Information/Communication, Industrial Control, Medical, Transportation, LED Lighting, Solar Energy Storage.
Common Applications
- Networking & Industrial Control: Cloud data centers, network switches, smart meters, broadcast transmitters, injection molding machines.
- Medical Devices: Card readers, message displays, vehicle computers, USB chargers, voice broadcast devices.
- Transportation: CPR machines, body composition analyzers, surgical knives, respirators, blood cell counters.
- LED Lighting: Smart street lights, solar-powered lighting, commercial track lights, plant factory lighting, vehicle/ship lighting.
Why Choose MEAN WELL?
- Product: Over 10,000 standard models, 10% new models introduced annually, 5% phased out.
- Quality: High quality with less than 10% after-sales failure rate annually.
- Cost: High cost-performance products with stable costs due to integrated supply chain.
- Delivery: Small orders shipped within 24 hours; frequently ordered models delivered in 14 days.
- Service: 24-hour service provided by MEAN WELL Group and distributors, with a response within 24 hours.
- Trust & Relationship: 75% of revenue comes from long-term partnerships with distributors and customers.
