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Mean Well

Mean Well SD-25A-24 DC-DC Converter - 25W - 9.2~18V in 24V out 1.1A

2:1 wide input range1.5~2KVAC isolation by models
SKU SD-25A-24
$27.69 USD
Shipping calculated at checkout.
In stock
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Overview

SD-25A-24 is the 24V output model of this series: rated current 1.1A, rated power 26.4W, typical efficiency 75%.

Features

  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage
  • 1500VAC I/O isolation
  • Built-in EMI filter, low ripple noise
  • 100% full load burn-in test
  • Fixed switching frequency at 83KHz
  • Low cost
  • High reliability
  • 2 years warranty

Specifications

SD-25A-24Specifications from the official datasheet (2025-04-27 edition)

OUTPUT

DC VOLTAGE
24V
RATED CURRENT
1.1A
CURRENT RANGE
0 ~ 1.1A
RATED POWER
26.4W
RIPPLE & NOISE (max.)Note.2
150mVp-p
VOLTAGE ADJ. RANGE
23 ~ 30VDC
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.2%
LOAD REGULATION
±0.2%
SETUP, RISE, HOLD UP TIME
2.5s, 50ms, ------ at full load

INPUT

VOLTAGE RANGE
A:9.2 ~ 18VDC
EFFICIENCY (Typ.)
75%
DC CURRENT
3.2A/12V

PROTECTION

OVERLOAD
105 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
31.5 ~ 37.5V/10% load Protection type : Hiccup mode, recovers automatically after fault condition is removed

ENVIRONMENT

WORKING TEMP.
-10 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-20 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS
EAC TP TC 004 approved, Design refer to LVD, AS/NZS 62368.1
WITHSTAND VOLTAGE
I/P-O/P:1.5KVAC 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, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,6,8, BS EN/EN55035,heavy industry level, EAC TP TC 020

OTHERS

MTBF
3682.6K hrs min. Telcordia SR-332 (Bellcore) ; 528.8K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
99*97*36mm (L*W*H)
PACKING
0.38Kg; 45pcs/17.8Kg/0.94CUFT
Test conditions and notes5
  1. 1. All parameters NOT specially mentioned are measured at 12,24,48VDC 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 0.1μF & 47μF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 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. 5. 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

SD-25A-24 Mechanical Specification
Mechanical Specification
SD-25A-24 Block Diagram
Block Diagram
SD-25A-24 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SD-25A-24 for a low-power 24V automation device?

It can be used for a 24V constant-voltage automation load that stays within 1.1A and 26.4W. The listed input range is 9.2-18VDC.

Is the SD-25A-24 suitable for 24V industrial sensors or transmitters?

Yes, if the 24V sensor or transmitter requires constant-voltage power and draws no more than 1.1A. The converter is rated for 26.4W output.

Can this converter power a 24V embedded control module?

It is appropriate for a 24V embedded control module when the load remains at or below 1.1A and 26.4W. It is designed as a constant-voltage unit with 9.2-18VDC input.

How does the SD-25A-24 compare with the other SD-25A output options?

The SD-25A family includes SD-25A-12 at 25.2W, 12V, 2.1A; SD-25A-24 at 26.4W, 24V, 1.1A; and SD-25A-5 at 25W, 5V, 5A. They share the same listed 9.2-18VDC input range, with the output rating changing by model.

Is the SD-25A-24 rated for outdoor environments?

The specs show an operating temperature range of -10°C to +60°C, with output derating at higher temperatures per the derating curve, but no IP rating is provided. That supports temperature planning, but it does not confirm outdoor or moisture-resistant use.

Payment & Security

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Mean Well SD-25A-24 DC-DC Converter - 25W - 9.2~18V in 24V out 1.1A
Mean Well

Mean Well SD-25A-24 DC-DC Converter - 25W - 9.2~18V in 24V out 1.1A

$27.69 USD

SD-25A-24 is the 24V output model of this series: rated current 1.1A, rated power 26.4W, typical efficiency 75%.

Features

  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage
  • 1500VAC I/O isolation
  • Built-in EMI filter, low ripple noise
  • 100% full load burn-in test
  • Fixed switching frequency at 83KHz
  • Low cost
  • High reliability
  • 2 years warranty
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