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Mean Well

Mean Well SD-150B-12 DC-DC Converter - 150W - 19~36V in 12V out 12.5A

2:1 wide input range1.5~2KVAC isolation by models
SKU SD-150B-12
$56.02 USD
Shipping calculated at checkout.
In stock
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Overview

SD-150B-12 is the 12V output model of this series: rated current 12.5A, rated power 150W, typical efficiency 75%.

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
  • 24V and 48V input voltage design refer to LVD
  • Low cost
  • High reliability
  • 2 years warranty

Specifications

SD-150B-12Specifications from the official datasheet (2024-09-03 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
12.5A
CURRENT RANGE
0 ~ 12.5A
RATED POWER
150W
RIPPLE & NOISE (max.)Note.2
120mVp-p
VOLTAGE ADJ. RANGE
11 ~ 16VDC
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIME
2s, 50ms(only D mode) at full load
HOLD UP TIME (Typ.)
24ms(only D mode) at full load

INPUT

VOLTAGE RANGE
B:19 ~ 36VDC
EFFICIENCY (Typ.)
75%
DC CURRENT (Typ.)
8.5A/24V
INRUSH CURRENT (Typ.)
D:22.5A/96VDC
LEAKAGE CURRENT
<0.75mA / 120VAC (SD-150D)

PROTECTION

OVERLOAD
105 ~ 135% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
16.8V ~ 20V/10% LOAD Protection type : Hiccup mode, recovers automatically after fault condition is removed

ENVIRONMENT

WORKING TEMP.
-10 ~ +60℃ (Refer to output load 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
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:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMI CONDUCTION & RADIATION
Compliance to BS EN/EN55032 (CISPR32) Class B, EAC TP TC 020
EMS IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,6,8; BS EN/EN55035, BS EN/ENV50204, light industry level, EAC TP TC 020

OTHERS

MTBF
2897.06K hrs min. Telcordia SR-332 (Bellcore) ; 419.6K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
199*110*50mm (L*W*H)
PACKING
0.86Kg; 16pcs/14.5Kg/0.95CUFT
Test conditions and notes5
  1. 1. All parameters NOT specially mentioned are measured at 24,48,96VDC 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. 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. 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

SD-150B-12 Mechanical Specification
Mechanical Specification
SD-150B-12 Block Diagram
Block Diagram
SD-150B-12 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SD-150B-12 to power a 12V automation panel from a 24V DC system?

Yes. This converter accepts 19-36V input and provides regulated 12V constant-voltage output. With 150W total power and 12.5A output current, it is suited to 12V automation and control loads on nominal 24V DC systems.

Is the SD-150B-12 a good fit for 12V industrial PCs, HMIs, or monitoring devices?

It can be a fit when the equipment requires a stable 12V supply and the load stays within 150W or 12.5A. The 19-36V input range matches many industrial DC systems in the 24V class. Its constant-voltage operation is intended for electronics that are specified for fixed 12V input power.

Can this converter support several 12V control devices from one 24V battery or DC bus?

It can support grouped 12V loads as long as the total demand remains within 150W and 12.5A. That makes it suitable for moderate-current 12V control, communication, and embedded devices on a 19-36V source.

Is the SD-150B-12 suitable for indoor and outdoor installations?

No IP rating is listed, so this model is better suited to protected indoor enclosures rather than exposed outdoor locations. The operating temperature range is -10°C to +60°C, with output load derating at higher ambient temperatures (see the derating curve). For outdoor service, an enclosure would need to provide the appropriate environmental protection.

How does the SD-150B-12 compare with other SD-150 models?

Within the SD-150 group, the SD-150B-12 is 150W at 12V and 12.5A, while the SD-150B-24 is 151.2W at 24V and 6.3A. The SD-150C-12 and SD-150D-12 are also 150W, 12V, 12.5A, and the SD-150C-24 and SD-150D-24 are 151.2W, 24V, 6.3A. Models with the same output differ by input range: B is 19-36V, C is 36-72V, and D is 72-144V.

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Mean Well SD-150B-12 DC-DC Converter - 150W - 19~36V in 12V out 12.5A
Mean Well

Mean Well SD-150B-12 DC-DC Converter - 150W - 19~36V in 12V out 12.5A

$56.02 USD

SD-150B-12 is the 12V output model of this series: rated current 12.5A, rated power 150W, typical efficiency 75%.

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
  • 24V and 48V input voltage design refer to LVD
  • Low cost
  • High reliability
  • 2 years warranty
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