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Mean Well SD-100B-24 DC-DC Converter - 100W - 19~36V in 24V out 4.2A
Overview
SD-100B-24 is the 24V output model of this series: rated current 4.2A, rated power 100.8W, typical efficiency 78%.
Features
- 2:1 wide input range
- Protections: Short circuit / Overload / Over voltage
- 1500VAC I/O isolation
- Built-in EMI filter, low ripple noise
- Low cost
- High reliability
- 2 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 24V
- RATED CURRENT
- 4.2A
- CURRENT RANGE
- 0 ~ 4.2A
- RATED POWER
- 100.8W
- 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 TIME
- 2s, 50ms(only D mode) at full load
- HOLD UP TIME (Typ.)
- 20ms(only D mode) at full load
INPUT
- VOLTAGE RANGE
- B:19 ~ 36VDC
- EFFICIENCY (Typ.)
- 78%
- DC CURRENT (Typ.)
- 4.8A/24V
- INRUSH CURRENT (Typ.)
- D:18A/96VDC
- LEAKAGE CURRENT
- <0.75mA/120VAC(SD-100D)
PROTECTION
- OVERLOAD
- 105 ~ 135% 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.
- -15 ~ +60℃(SD-100A), -10 ~ +60℃(SD-100B/C/D) (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -20 ~ +85℃, 10 ~ 95% RH non-condensing
- 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
- IEC/BS EN/EN 62368-1(for D type only), EAC TP TC 004 approved, design refer to AS/NZS 62368.1
- WITHSTAND VOLTAGE
- I/P-O/P:1.5KVAC I/P-FG:1.5KVAC 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, light industry level, EAC TP TC 020
OTHERS
- MTBF
- 2600.2K hrs min. Telcordia SR-332 (Bellcore) ; 399.9K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 199*98*38mm (L*W*H)
- PACKING
- 0.65Kg; 20pcs/13.8Kg/0.85CUFT
Test conditions and notes5
- 1. All parameters NOT specially mentioned are measured at 12,24,48,96VDC 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-100B-24 for 24V PLC I/O, sensors, or industrial control circuits from a 19-36V source?
Yes, it provides regulated 24V constant voltage output up to 4.2A with a 100.8W power rating. That makes it suitable for 24V automation and control loads when the input available is within 19-36V.
Is the SD-100B-24 a good fit for 24V industrial networking or communications equipment?
It can be used for 24V communications or control hardware that requires constant voltage and remains within 4.2A and 100.8W. The 19-36V input range can be useful in systems where the upstream DC source varies across that range.
Can the SD-100B-24 power a 24V embedded or automation subsystem inside equipment cabinets?
This model is intended for 24V constant voltage loads and can support subsystems up to 4.2A. Its 100.8W rating suits moderate-power embedded and automation assemblies rather than larger 24V loads.
Can the SD-100B-24 be used in outdoor cabinets or exposed locations?
The published specs include an operating temperature range of -15°C to +60°C, but they do not list an IP rating. Based on the stated data, it is better treated as a converter for protected indoor or enclosed use where that temperature range can be maintained.
What are the main differences between the SD-100B-24 and other SD-100 models?
In the SD-100 family, the 24V models SD-100A-24, SD-100B-24, SD-100C-24, and SD-100D-24 are each rated at 100.8W and 4.2A. The 12V versions SD-100A-12, SD-100B-12, SD-100C-12, and SD-100D-12 are 102W and 8.5A, while the 5V versions SD-100A-5, SD-100B-5, SD-100C-5, and SD-100D-5 are 90W and 18A.
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