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Mean Well

Mean Well SDM30-12S12 DC-DC Converter - 25.2W - 9.2~18V in 12V out 2.1A

SKU SDM30-12S12
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Overview

SDM30-12S12 is the 12V output model of this series: rated current 2.1A, rated power 25.2W, typical efficiency 80%.

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

SDM30-12S12Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
2.1A
CURRENT RANGE
0 ~ 2.1A
RATED POWER
25.2W
RIPPLE & NOISE (max.)Note.2
100mVp-p
VOLTAGE TOLERANCENote.3
±2.0% max.
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.)
80%
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
13.8 ~ 18V 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

SDM30-12S12 Block Diagram
Block Diagram
SDM30-12S12 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SDM30-12S12 for 12V sensors, relays, or compact automation devices from a 9.2-18V source?

Yes, it is intended for constant-voltage 12V loads when the available input is within 9.2-18V. It can deliver up to 2.1A, so the connected 12V devices need to stay within that output current and the 25.2W rating.

Is this model suitable for a 12V display, HMI, or small control interface board?

It can fit 12V interface electronics that use constant-voltage power and stay within 2.1A output current. Its 25.2W capacity makes it a better match for compact control electronics than for larger 12V loads.

Can the SDM30-12S12 be used in embedded equipment with a low-voltage battery or DC bus?

It is designed for applications where the source stays in the 9.2-18V input range and the load requires 12V constant-voltage output. That makes it usable for embedded and control equipment built around a low-voltage input rail.

Is the SDM30-12S12 suitable for outdoor or high-temperature environments?

The operating temperature range is -25°C to +85°C, which is broad for enclosed industrial or embedded equipment. No IP rating is listed, so outdoor suitability depends on the enclosure and not on the converter by itself.

How does the SDM30-12S12 compare with the other SDM30 versions listed here?

In the listed SDM30 family, the 12V-input options are SDM30-12S3 at 16.5W, 3.3V, 5A; SDM30-12S5 at 25W, 5V, 5A; SDM30-12S12 at 25.2W, 12V, 2.1A; and SDM30-12S15 at 25.5W, 15V, 1.7A. The higher-input versions shown are SDM30-24S12 at 30W, 12V, 2.5A; SDM30-24S15 at 30W, 15V, 2A; SDM30-24S3 at 16.5W, 3.3V, 5A; SDM30-24S5 at 25W, 5V, 5A; SDM30-48S12 at 30W, 12V, 2.5A; SDM30-48S15 at 30W, 15V, 2A; SDM30-48S3 at 16.5W, 3.3V, 5A; and SDM30-48S5 at 25W, 5V, 5A.

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Mean Well SDM30-12S12 DC-DC Converter - 25.2W - 9.2~18V in 12V out 2.1A
Mean Well

Mean Well SDM30-12S12 DC-DC Converter - 25.2W - 9.2~18V in 12V out 2.1A

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SDM30-12S12 is the 12V output model of this series: rated current 2.1A, rated power 25.2W, typical efficiency 80%.

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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