Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well RSD-150B-12 DC-DC Converter - 150W - 16.8~31.2V in 12V out 12.5A

miniature sizeeconomicalwithstand 5G vibration and 70°C operation

SKU RSD-150B-12

Log in to see price Trade pricing & online ordering for account holders

Available to order

Overview

RSD-150B-12 is the 12V output model of this series: rated current 12.5A, rated power 150W, typical efficiency 90%.

Features

Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
2:1 wide input range
Protections: Short circuit / Overload / Over voltage / Over temperature / 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-150B-12Specifications from the official datasheet (2025-07-18 edition)

OUTPUT

DC VOLTAGE: 12V
RATED CURRENT: 12.5A
CURRENT RANGE: 0 ~ 12.5A
RATED POWER: 150W
RIPPLE & NOISE (max.)^Note.2: 120mVp-p
VOLTAGE TOLERANCE^Note.3: ±2.0%
LINE REGULATION: ±0.3%
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: 16.8 ~ 31.2VDC
VOLTAGE RANGE 1 SEC.: 14.4 ~ 33.6VDC
EFFICIENCY (Typ.): 90%
DC CURRENT (Typ.): 7.3A/24V
INRUSH CURRENT (Typ.): 45A/24VDC
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: 13.8 ~ 16.2V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: Shut down o/p voltage, recovers automatically after temperature goes down

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 4)

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: 2405.1K hrs min. Telcordia SR-332 (Bellcore) ; 223.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 189*77*36mm (L*W*H)
PACKING: 0.8Kg; 15pcs/13Kg/0.75CUFT

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. 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 )
5. Strongly recommended that external output capacitance should not exceed 5000uF. (Only for: RSD-150-5/-12)
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-150B-12 Mechanical Specification — Mechanical Specification

RSD-150B-12 Block Diagram — Block Diagram

RSD-150B-12 Input Under-Voltage Protection — Input Under-Voltage Protection

RSD-150B-12 Efficiency vs Load & Vin Curve — Efficiency vs Load & Vin Curve

RSD-150B-12 Overload Protection — Overload Protection

RSD-150B-12 Immunity to Environmental Conditions — Immunity to Environmental Conditions

Downloads

Certificates1

EMC Certificate(RSD-150)(EN) PDF Download

Test reports1

Test Report(RSD-150B-12)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the RSD-150B-12 for a 12V PLC, relay, or industrial control panel load?

Yes, if the load needs constant 12V output and stays within 12.5A. With a 150W rating, it fits medium-power 12V control hardware better than smaller 100.8W models.

Is the RSD-150B-12 suitable for 12V embedded systems in automation or mobile equipment?

It can support 12V embedded electronics that need regulated constant-voltage power up to 12.5A. The features also list 5G vibration resistance, which is relevant for equipment mounted in moving or vibration-prone environments.

Can this converter power a 12V monitoring, communications, or security subsystem from a 16.8~31.2V source?

Yes, that is the kind of DC conversion role this model is built for, provided the connected 12V subsystem stays within 12.5A and 150W. The listed input range is 16.8~31.2V in the product name, matching lower-voltage DC systems that need a regulated 12V output.

Is the RSD-150B-12 intended for outdoor use?

The operating temperature range is -40°C to +55°C with no derating, extending to +70°C at 60% load by free air convection. The storage temperature is -40°C to +85°C. No IP rating is listed in the provided data, so the specs do not confirm outdoor, wet-location, or dust-tight suitability.

How does the RSD-150B-12 compare with the other RSD-150B output options?

In the RSD-150B group, the 5V version is 150W at 30A, the 12V version is 150W at 12.5A, and the 24V version is 151.2W at 6.3A. The RSD-150C and RSD-150D listings show the same output-voltage/current patterns for 5V, 12V, and 24V, with the 12V entries listed at 150W and 12.5A.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Please log in to write a review.

{ "id":8442664288555, "variants" :[{ "context":"default", "variant_id": 45712081387819, "sku":"RSD-150B-12", "inventory_qty" : 0, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }

Mean Well RSD-150B-12 DC-DC Converter - 150W - 16.8~31.2V in 12V out 12.5A

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC (Note 4)

OTHERS

Technical drawings

Downloads

Certificates1

Test reports1

Catalogues2

FAQ

Payment & Security

Write a review

Your cart

Mean Well RSD-150B-12 DC-DC Converter - 150W - 16.8~31.2V in 12V out 12.5A

Features

Company Information

Services and Support

Choose options