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Mean Well SD-25A-24 DC-DC Converter - 25W - 9.2~18V in 24V out 1.1A
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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
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. All parameters NOT specially mentioned are measured at 12,24,48VDC 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. 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
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.
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Other SD-25A Models
2 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well SD-25A-5 DC-DC Converter - 25W - 9.2~18V in 5V out 5A | 25W | 5V | 5A | IP20 | View |
| Mean Well SD-25A-12 DC-DC Converter - 25W - 9.2~18V in 12V out 2.1A | 25.2W | 12V | 2.1A | IP20 | View |
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