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Mean Well RSD-100D-5 DC-DC Converter - 100W - 67.2~143V in 5V out 20A

miniature sizeeconomicalwithstand 5G vibration and 70°C operation

SKU RSD-100D-5

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Overview

RSD-100D-5 is the 5V output model of this series: rated current 20A, rated power 100W, typical efficiency 89.5%.

Features

Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
2:1 wide input range
Protections: Short circuit / Overload / Over voltage / Input reverse polarity
4000VDC I/O isolation
Cooling by free air convection
Half encapsulated
Built-in constant current limiting circuit
1U low profile 36mm
All using 105℃ long life electrolytic capacitors
LED indicator for power on
100% full load burn-in test
3 years warranty

Specifications

RSD-100D-5Specifications from the official datasheet (2025-07-18 edition)

OUTPUT

DC VOLTAGE: 5V
RATED CURRENT: 20A
CURRENT RANGE: 0 ~ 20A
RATED POWER: 100W
RIPPLE & NOISE (max.)^Note.2: 100mVp-p
VOLTAGE TOLERANCE^Note.3: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.0%
SETUP, RISE TIME: 800ms, 50ms at full load
HOLD UP TIME (Typ.): Please refer to page 3 Hold up Time( Load de-rating curve )

INPUT

VOLTAGE RANGE CONTINUOUS: 67.2 ~ 143VDC
VOLTAGE RANGE 1 SEC.: 57.6 ~ 154VDC
EFFICIENCY (Typ.): 89.5%
DC CURRENT (Typ.): 1.2A/110V
INRUSH CURRENT (Typ.): 30A/110VDC
INTERRUPTION OF VOLTAGE SUPPLY: EN50155:2021-Comply with S1 level

PROTECTION

OVERLOAD: 105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE: 5.75 ~ 7V Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.: -40 ~ +55℃ (no derating) ; +70℃ @ 60% load by free air convection ; +70℃ no derating with external base plate, TX class compliance
WORKING HUMIDITY: 5 ~ 95% RH non-condensing
STORAGE TEMP.: -40 ~ +85℃
TEMP. COEFFICIENT: ± 0.03%/℃ (0 ~ 50℃ )
VIBRATION: 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes ; Mounting : compliance to IEC61373
OPERATING ALTITUDE: 5000 meters

SAFETY & EMC (Note 5)

SAFETY STANDARDS: IEC 62368-1, UL 62368-1, AS/NZS 62368-1, EAC TP TC 004 approved, Design refer to BS EN/EN62368-1
WITHSTAND VOLTAGE: I/P-O/P:4KVDC I/P-FG:2.5KVDC O/P-FG:2.5KVDC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Compliance to BS EN/EN55032 (CISPR32) Conduction Emission: Class A, Radiation Emission: Class B, EAC TP TC 020
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8, BS EN/EN55035, light industry level, EAC TP TC 020
RAILWAY STANDARD: BS EN/EN50155 / IEC60571 including IEC61373 for shock & vibration, BS EN/EN50121-3-2 for EMC ; BS EN/EN45545-2 for fire protection

OTHERS

MTBF: 2446.2K hrs min. Telcordia SR-332 (Bellcore) ; 254.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 161*68*36mm (L*W*H)
PACKING: 0.563Kg; 24pcs/14.5Kg/0.91CUFT

Test conditions and notes6

1. All parameters NOT specially mentioned are measured at 24,48,110VDC input, rated load and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Strongly recommended that external output capacitance should not exceed 5000uF. (Only for: RSD-100-5 / -12)
5. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
6. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

RSD-100D-5 Mechanical Specification — Mechanical Specification

RSD-100D-5 Block Diagram — Block Diagram

RSD-100D-5 Input Under-Voltage Protection — Input Under-Voltage Protection

RSD-100D-5 Efficiency vs Load & Vin Curve — Efficiency vs Load & Vin Curve

RSD-100D-5 Overload Protection — Overload Protection

RSD-100D-5 Immunity to Environmental Conditions — Immunity to Environmental Conditions

Downloads

Certificates1

EMC Certificate(RSD-100)(EN) PDF Download

Test reports1

Test Report(RSD-100D-5)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the RSD-100D-5 for 5V industrial single-board computers or embedded controllers?

Yes, if the equipment needs a constant 5V supply and the total load stays within 20A. This model provides up to 100W, so it suits higher-current 5V embedded electronics better than lower-current 12V or 24V outputs.

Is the RSD-100D-5 a fit for 5V USB-style logic, gateways, or communications electronics in an equipment enclosure?

It can fit 5V logic and communications hardware when the combined draw does not exceed 20A or 100W. The constant-voltage output makes it appropriate for electronics that expect a regulated 5V rail rather than a constant-current source.

Can this model support a 5V PLC accessory or industrial I/O subsystem?

It is suitable for 5V automation electronics that require stable constant-voltage power up to 20A. That gives more current headroom for dense 5V control loads than the 24V version, which is limited to 4.2A.

Is the RSD-100D-5 suitable for outdoor cabinets or temperature-extreme environments?

It operates from -40°C to +55°C without derating, and up to +70°C at 60% load by free air convection or at full load when mounted on an external base plate (EN50155 TX class). No IP rating is shown in the provided specs, so the product data does not confirm outdoor exposure resistance.

What are the main differences between the RSD-100D-5 and the other 100W RSD outputs?

Among the listed 100W-class outputs, the 5V models are 100W at 20A, the 12V models are 100.8W at 8.4A, and the 24V models are 100.8W at 4.2A. In the D versions, RSD-100D-5 is 100W 5V 20A, RSD-100D-12 is 100.8W 12V 8.4A, and RSD-100D-24 is 100.8W 24V 4.2A.

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Mean Well RSD-100D-5 DC-DC Converter - 100W - 67.2~143V in 5V out 20A

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC (Note 5)

OTHERS

Technical drawings

Downloads

Certificates1

Test reports1

Catalogues2

FAQ

Payment & Security

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Mean Well RSD-100D-5 DC-DC Converter - 100W - 67.2~143V in 5V out 20A

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