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Mean Well

Mean Well SDM30-24S3 DC-DC Converter - 16.5W - 18~36V in 3.3V out 5A

SKU SDM30-24S3
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Overview

SDM30-24S3 is the 3.3V output model of this series: rated current 5A, rated power 16.5W, typical efficiency 79%.

Features

  • Wide 2:1 DC input range
  • In/out capacitance1000pF
  • Protections: Short circuit / Overload / Over voltage
  • 1000VDC I/O isolation for D/D
  • Cooling by free air convection
  • Built-in remote ON-OFF control
  • 100% full load burn-in test
  • Fixed switching frequency at 225KHz
  • Low cost
  • High reliability
  • 2 years warranty

Specifications

SDM30-24S3Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE
3.3V
RATED CURRENT
5A
CURRENT RANGE
0 ~ 5A
RATED POWER
16.5W
RIPPLE & NOISE (max.)Note.2
75mVp-p
VOLTAGE TOLERANCENote.3
±3.0%
LINE REGULATION
±1.0%
LOAD REGULATION
±1.0%
TRIM OUTPUT
±13%(Typ.) output voltage

INPUT

RATED DC INPUT
12S: 12VDC 24S: 24VDC 48S: 48VDC
VOLTAGE RANGE
12S: 9.2 ~ 18VDC 24S: 18~ 36VDC 48S: 36~ 72VDC
EFFICIENCY (Typ.)
79%
DC CURRENT
12S:3.6A 24S:2A 48S:1A
IDLE CURRENT
12S:35mA 24S/48S:30mA

PROTECTION

OVERLOAD
Above 105% rated output power Protection type : Over power limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
3.8 ~ 4.95V Protection type : Shut off o/p voltage, clamping by zener diode
SHORT CIRCUIT
Protection type : Constant current limiting, recovers automatically after fault condition is removed

FUNCTION

ON/OFF CONTROL
Logic "1" or open: power on Logic "0" short to Vin-: power off

ENVIRONMENT

WORKING TEMP.
-25 ~ +85℃ (Refer to "Derating Curve")
STORAGE TEMP., HUMIDITY
-25 ~ +85℃, 0 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0~50℃)

SAFETY & EMC (Note 6)

SAFETY STANDARDS
Design refer to LVD, EAC TP TC 004 approved
ISOLATION VOLTAGE
I/P-O/P:1KVDC
ISOLATION RESISTANCE
I/P-O/P: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/EN61000-2,3,4,6,8, BS EN/EN55035, light industry level, EAC TP TC 020

OTHERS

MTBF
8083.5K hrs min. Telcordia SR-332 (Bellcore) ; 777.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
50.8*50.8*16mm (2"*2"*0.63") (L*W*H)
PACKING
0.1Kg; 150pcs/15.8Kg/0.94CUFT
Test conditions and notes7
  1. 1. All parameters NOT specially mentioned are measured at 12,24,48VDC input, rated load and 25℃ of ambient temperature.
  2. 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. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Short circuit not more than 60 second.
  5. 5. DC source wires ≧5cm, an input external al capacitor 47 ~ 100uF is required.
  6. 6. 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 230mm*230mm 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 )
  7. 7. 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

SDM30-24S3 Block Diagram
Block Diagram
SDM30-24S3 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SDM30-24S3 for 3.3V embedded controllers in industrial equipment with 24V-class DC available?

Yes, when the source is within the specified 18-36VDC input range and the 3.3V load stays within 16.5W and 5A. That makes it suitable for regulated 3.3V embedded logic and controller loads that need constant-voltage output at that power level.

Is the SDM30-24S3 appropriate for 3.3V automation communication or processing boards?

It can be a fit for 3.3V boards used in automation or embedded systems as long as their total demand does not exceed 5A and 16.5W. The converter is designed for constant 3.3V output from an 18-36VDC input source.

Can this model support 3.3V digital logic loads that need higher current?

Yes, this version is rated for up to 5A at 3.3V, which is relatively high current within the series for a low-voltage rail. The total output power still needs to remain within the 16.5W rating.

Is the SDM30-24S3 suitable for outdoor use or only protected environments?

Its operating temperature range is -25°C to +85°C, with load derating at higher ambient temperatures per the derating curve, so it is specified for a wide range of temperatures. The supplied specs do not include an IP rating, so the product data here does not confirm exposed outdoor or water-resistant use.

What should I know when comparing the SDM30-24S3 with other SDM30 converters?

The listed series covers 3.3V at 16.5W and 5A, 5V at 25W and 5A, 12V at 25.2W and 2.1A or 30W at 2.5A, and 15V at 25.5W and 1.7A or 30W at 2A. Input families are 9.2-18V, 18-36V, and 36-72V, and the SDM30-24S3 is the 18-36V input option with 3.3V output at 16.5W and 5A.

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Mean Well SDM30-24S3 DC-DC Converter - 16.5W - 18~36V in 3.3V out 5A
Mean Well

Mean Well SDM30-24S3 DC-DC Converter - 16.5W - 18~36V in 3.3V out 5A

Log in to see price

SDM30-24S3 is the 3.3V output model of this series: rated current 5A, rated power 16.5W, typical efficiency 79%.

Features

  • Wide 2:1 DC input range
  • In/out capacitance1000pF
  • Protections: Short circuit / Overload / Over voltage
  • 1000VDC I/O isolation for D/D
  • Cooling by free air convection
  • Built-in remote ON-OFF control
  • 100% full load burn-in test
  • Fixed switching frequency at 225KHz
  • Low cost
  • High reliability
  • 2 years warranty
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