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Mean Well

Mean Well RS-25-12 Power Supply 25W 12V 2.1A

4.8 (14 reviews)
miniature sizeeconomicalwithstand 5G vibration and 70Β°C operation
SKU RS-25-12
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Select model β€” 7 in this family

RS-25-12
In stock
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Overview

RS-25-12 is the 12V output model of this series: rated current 2.1A, rated power 25.2W, typical efficiency 81.5%.

Features

  • Universal AC input / Full range
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • LED indicator for power on
  • 100% full load burn-in test
  • All using 105℃ long life electrolytic capacitors
  • Withstand 300VAC surge input for 5 second
  • High operating temperature up to 70℃
  • Withstand 5G vibration test
  • No load power consumption<0.5W
  • High efficiency, long life and high reliability
  • 3 years warranty

Specifications

RS-25-12Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
2.1A
CURRENT RANGE
0 ~ 2.1A
RATED POWER
25.2W
RIPPLE & NOISE (max.)Note.2
120mVp-p
VOLTAGE ADJ. RANGE
10.8 ~ 13.2V
VOLTAGE TOLERANCENote.3
Β±1.0%
LINE REGULATIONNote.4
Β±0.5%
LOAD REGULATIONNote.5
Β±0.5%
SETUP, RISE TIME
1800ms, 23ms/230VAC 4000ms, 30ms/115VAC at full load
HOLD UP TIME (Typ.)
80ms/230VAC 14ms/115VAC at full load

INPUT

VOLTAGE RANGE
88 ~ 264VAC 125 ~ 373VDC (Withstand 300VAC surge for 5sec. Without damage)
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY(Typ.)
81.5%
AC CURRENT (Typ.)
0.7A/115VAC 0.4A/230VAC
INRUSH CURRENT (Typ.)
COLD START 45A/230VAC
LEAKAGE CURRENT
<2mA / 240VAC

PROTECTION

OVERLOAD
110 ~ 180% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
13.8 ~ 16.2V Protection type : Shut off o/p voltage, clamping by zener diode

ENVIRONMENT

WORKING TEMP.
-20 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
Β±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note 6)

SAFETY STANDARDS
UL62368-1, TUV BS EN/EN62368-1 , AS/NZS 62368.1 , EAC TP TC 004, CCC GB4943 .1, BSMI CNS15598-1, BIS IS13252(Part1):2010/IEC 60950-1:2005 approved
WITHSTAND VOLTAGE
I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
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) Class B, BS EN/EN61000-3-2,-3,GB9254 class B,GB17625.1, EAC TP TC 020, CNS15936 Class B
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, light industry level, EAC TP TC 020

OTHERS

MTBF
3992.0K hrs min. Telcordia SR-332 (Bellcore) ; 663.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
78*51*28mm (L*W*H)
PACKING
0.2Kg; 60pcs/13Kg/0.46CUFT
Test conditions and notes7
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1ΞΌF & 47ΞΌF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Line regulation is measured from low line to high line at rated load.
  5. 5. Load regulation is measured from 0% to 100% rated load.
  6. 6. 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 β€œEMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  7. 7. 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

RS-25-12 Mechanical Specification
Mechanical Specification
RS-25-12 Block Diagram
Block Diagram
RS-25-12 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the RS-25-12 for a small 12V control or automation device?

Yes, if the load requires constant-voltage 12V and draws no more than 2.1A. With 25.2W available, it is aimed at smaller 12V control and automation loads rather than higher-power equipment.

Is the RS-25-12 suitable for compact embedded systems that run on 12V DC?

It is a constant-voltage 12V supply with up to 2.1A output current. That makes it a practical fit for compact embedded systems whose total demand stays within 25.2W.

Can this model power a low-power 12V industrial sensor or interface module?

It can power 12V industrial electronics as long as the total load is at or below 2.1A and 25.2W. The compact 78.0 Γ— 51.0 Γ— 28.0 mm size also supports space-constrained equipment layouts.

How do I know whether the RS-25-12 is too small for my 12V load?

Use it only with constant-voltage 12V equipment that stays within 2.1A and 25.2W. If your load needs more than either of those values, you need a higher-capacity 12V model.

Is the RS-25-12 for indoor use only, or can it handle wider environmental conditions?

Its operating temperature range is -20Β°C to +70Β°C, which supports a broad indoor industrial temperature span. The provided specs do not include an IP rating, so outdoor exposure is not established by this data.

How does the RS-25-12 compare with other 12V RS series options?

The listed 12V RS models are RS-15-12 at 15.6W and 1.3A, RS-25-12 at 25.2W and 2.1A, RS-35-12 at 35W and 3A, RS-50-12 at 50.4W and 4.2A, RS-75-12 at 72W and 6A, RS-100-12 at 102W and 8.5A, and RS-150-12 at 150W and 12.5A. RS-25-12 sits near the low-power end of that 12V range.

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Customer reviews

4.8 Reviews verified for authenticity
5 β˜… (12)
4 β˜… (1)
3 β˜… (1)
2 β˜… (0)
1 β˜… (0)

Reviewed by 14 customers across the RS series

  1. Exactly as specced

    By Daniel R.|2026-06-18βœ“ Verified Buyer
    Model: RS-15-24Quantity: 4

    Drop-in replacement, ran cool under full load on our DIN rail. Shipped same day.

  2. Workhorse

    By Maria K.|2026-05-28βœ“ Verified Buyer
    Model: RS-50-24Quantity: 12

    Bought a dozen for a control panel build β€” every one perfect.

  3. Solid little supply

    By Greg T.|2026-04-30βœ“ Verified Buyer
    Model: RS-100-24Quantity: 2

    Does the job. Wish the terminals were a touch bigger.

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Mean Well RS-25-12 Power Supply 25W 12V 2.1A
Mean Well

Mean Well RS-25-12 Power Supply 25W 12V 2.1A

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RS-25-12 is the 12V output model of this series: rated current 2.1A, rated power 25.2W, typical efficiency 81.5%.

Features

  • Universal AC input / Full range
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • LED indicator for power on
  • 100% full load burn-in test
  • All using 105℃ long life electrolytic capacitors
  • Withstand 300VAC surge input for 5 second
  • High operating temperature up to 70℃
  • Withstand 5G vibration test
  • No load power consumption<0.5W
  • High efficiency, long life and high reliability
  • 3 years warranty

Model

  • 15W 12V
  • 100W 12V
  • 150W 12V
  • 25W 12V
  • 35W 12V
  • 50W 12V
  • 75W 12V
View product

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