Over 15 years experience of providing support of MEAN WELL Power Supplies
Image shown is a representation only. Exact specifications should be obtained from the product datasheet.
Mean Well SD-50B-24 DC-DC Converter - 50W - 19~36V in 24V out 2.1A
Log in to see priceOverview
SD-50B-24 is the 24V output model of this series: rated current 2.1A, rated power 50.4W, typical efficiency 80%.
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
- 2.1A
- CURRENT RANGE
- 0 ~ 2.1A
- RATED POWER
- 50.4W
- 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
- B:19 ~ 36VDC
- EFFICIENCY (Typ.)
- 80%
- DC CURRENT
- 3A/24V
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
- 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-24 for a 24V industrial sensor or control circuit from a 19-36V source?
Yes, this model is a 24V constant-voltage converter rated for 2.1A output. It is intended for systems where the available input is within 19-36V and the load requires regulated 24V.
Is the SD-50B-24 a fit for small 24V automation loads in a control cabinet?
It can suit low-power 24V automation equipment that needs constant voltage and draws up to 2.1A. The defining limits are the 24V output and the 19-36V input range.
Can this converter power 24V embedded or industrial communication hardware?
It is appropriate for embedded or industrial hardware that requires a steady 24V output and stays within the 2.1A rating. This model is selected when the source side falls within the specified 19-36V range.
Can the SD-50B-24 be used in hot or cold indoor equipment spaces?
The listed operating temperature range is -10C to +60C. No IP rating is included in the provided specs, so the temperature envelope is defined but sealed outdoor use is not established here.
How does the SD-50B-24 compare with the other 24V SD-50 versions?
The SD-50A-24, SD-50B-24, and SD-50C-24 all provide 24V output at 2.1A. Their difference is input range: 9-18V for SD-50A-24, 19-36V for SD-50B-24, and 36-72V for SD-50C-24.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Other SD-50B Models
2 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well SD-50B-5 DC-DC Converter - 50W - 19~36V in 5V out 10A | 50W | 5V | 10A | 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 |
Please log in to write a review.
Write a review
Reviews are checked before publishing. By submitting you confirm this is your genuine experience with this product.
Submitting your review…
It's published and now helps other buyers.
We're checking it and it'll appear shortly.
Please try again.
