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Mean Well SD-25C-24 DC-DC Converter - 25W - 36~72V in 24V out 1.1A
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SD-25C-24 is the 24V output model of this series: rated current 1.1A, rated power 26.4W, typical efficiency 81%.
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
- C:36 ~ 72VDC
- EFFICIENCY (Typ.)
- 81%
- DC CURRENT
- 0.8A/48V
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-25C-24 for a small 24V control circuit in a 48V-class system?
Yes, it is designed for inputs within 36-72V and provides 24V constant voltage output. With 1.1A output current and 26.4W total power, it is best suited to low-power 24V controls, compact automation electronics, and similar loads.
Is the SD-25C-24 a good fit for 24V relays, transmitters, or panel accessories?
It can support smaller 24V loads that stay within the 1.1A and 26.4W output limits. This makes it more appropriate for light-duty 24V instrumentation and panel devices than for larger 24V motors or high-current actuators.
Can this model be used in telecom or automation cabinets that provide a 36-72V input range?
It is intended for exactly that input window, with a 2:1 wide input range of 36-72V and a regulated 24V output. The 26.4W rating keeps it in the small-load category for embedded and control applications.
What is the difference between the SD-25C-24 and the other SD-25C versions?
The SD-25C versions in this size class are SD-25C-5 at 25W, 5V, 5A; SD-25C-12 at 25.2W, 12V, 2.1A; and SD-25C-24 at 26.4W, 24V, 1.1A. They all share the same 36-72V input range while offering different output combinations.
Can the SD-25C-24 be used outdoors or in exposed locations?
The specs provided do not list an IP rating, so there is no stated protection level for outdoor exposure. Its operating temperature range is -10°C to +60°C, so it should be considered for protected indoor equipment environments within that range.
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Other SD-25C Models
2 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well SD-25C-12 DC-DC Converter - 25W - 36~72V in 12V out 2.1A | 25.2W | 12V | 2.1A | IP20 | View |
| Mean Well SD-25C-5 DC-DC Converter - 25W - 36~72V in 5V out 5A | 25W | 5V | 5A | IP20 | View |
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