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Mean Well SD-50B-5 DC-DC Converter - 50W - 19~36V in 5V out 10A
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SD-50B-5 is the 5V output model of this series: rated current 10A, rated power 50W, typical efficiency 73%.
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
- 5V
- RATED CURRENT
- 10A
- CURRENT RANGE
- 0 ~ 10A
- RATED POWER
- 50W
- RIPPLE & NOISE (max.)Note.2
- 100mVp-p
- VOLTAGE ADJ. RANGE
- 4.5 ~ 5.5VDC
- VOLTAGE TOLERANCENote.3
- ±2.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±0.5%
- SETUP, RISE, HOLD UP TIME
- 2.5s, 50ms, ------ at full load
INPUT
- VOLTAGE RANGE
- B:19 ~ 36VDC
- EFFICIENCY (Typ.)
- 73%
- DC CURRENT
- 3A/24V
PROTECTION
- OVERLOAD
- 105 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 5.75 ~ 6.75V/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
- 3293.1K hrs min. Telcordia SR-332 (Bellcore) ; 512.8K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 159*97*38mm (L*W*H)
- PACKING
- 0.43Kg; 24pcs/11.35Kg/0.83CUFT
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-50B-5 for 5V industrial logic or controller electronics from a 19-36V source?
Yes, it provides a 5V constant-voltage output and is rated for 10A. It is intended for applications that need regulated 5V power while operating from a 19-36V input range.
Is the SD-50B-5 suitable for embedded computers or 5V single-board systems in industrial equipment?
It can be used where the load needs 5V constant voltage and remains within the 10A output rating. The input side must stay within the specified 19-36V range.
Can this model run 5V automation interfaces, gateways, or low-voltage peripherals?
It is a fit for 5V automation or embedded loads that require stable constant-voltage power up to 10A. The key match points are the 5V output and the 19-36V input window.
Is the SD-50B-5 rated for outdoor or exposed environments?
The provided specs show an operating temperature range of -10C to +60C, but they do not include an IP rating. That means thermal limits are stated, while outdoor or wet-location suitability is not defined in the listed data.
What are the output options in the SD-50B range?
Within the SD-50B group, SD-50B-5 provides 5V at 10A, SD-50B-12 provides 12V at 4.2A, and SD-50B-24 provides 24V at 2.1A. All three use the same 19-36V input range.
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Other SD-50B Models
2 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well SD-50B-24 DC-DC Converter - 50W - 19~36V in 24V out 2.1A | 50.4W | 24V | 2.1A | IP20 | View |
| Mean Well SD-50B-12 DC-DC Converter - 50W - 19~36V in 12V out 4.2A | 50.4W | 12V | 4.2A | IP20 | View |
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