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Mean Well SD-100D-24 DC-DC Converter - 100W - 72~144V in 24V out 4.2A
Overview
SD-100D-24 is the 24V output model of this series: rated current 4.2A, rated power 100.8W, typical efficiency 83%.
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
- D:72 ~ 144VDC or 85 ~ 132VAC
- EFFICIENCY (Typ.)
- 83%
- DC CURRENT (Typ.)
- 1.8A/96V
- 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-100D-24 to power a 24V PLC or relay panel from a 72-144V DC source?
Yes. This converter is built for 72-144V input and provides regulated 24V constant-voltage output. With 100.8W total power and 4.2A output current, it suits moderate-load 24V control and relay applications.
Is the SD-100D-24 suitable for 24V industrial sensors, gateways, or control electronics?
It is intended for 24V electronic loads that need stable output from a higher-voltage DC bus. The 4.2A output current and 100.8W rating fit many sensor hubs, gateways, and control modules within that power range. Its constant-voltage design is appropriate for equipment specified for 24V input.
Can this converter be used in transportation or automation systems with a nominal 96V or 110V DC bus?
It can be used where the source remains within the stated 72-144V input range. The output is fixed at 24V with up to 4.2A available, so the connected 24V load must stay within 100.8W. That makes it relevant for 24V automation electronics on higher-voltage DC platforms.
Is the SD-100D-24 okay for unsealed outdoor cabinets?
No IP rating is provided, so it is better suited to protected indoor enclosures than unsealed outdoor cabinets. The published operating range is -10°C to +60°C for the SD-100D series, which covers ambient temperature but not direct exposure to water or dust. Outdoor use would generally require a separate enclosure with the needed environmental protection.
How does the SD-100D-24 compare with the other SD-100D output options?
In the same SD-100D group, this model is 100.8W at 24V and 4.2A. The SD-100D-12 version is 102W at 12V and 8.5A, while the SD-100D-5 version is 100W at 5V and 18A. The family keeps roughly the same 100W class while changing the output voltage and current combination.
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