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Mean Well

Mean Well MSP-100-12 Power Supply 102W 12V 8.5A

built-in active PFCmedical safety approvedhigh efficiencyno load power consumption < 0.5~0.8W
SKU MSP-100-12
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Select model — 6 in this family

MSP-100-12
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Overview

MSP-100-12 is the 12V output model of this series: rated current 8.5A, rated power 102W, typical efficiency 87.5%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function
  • High efficiency up to 90%
  • Withstand 300VAC surge input for 5 seconds
  • Protections: Short circuit / Overload / Over voltage
  • Protections: Over temperature (optional)
  • Cooling by free air convection
  • 1U low profile 38mm
  • Medical safety approved (MOOP level)
  • Built-in remote ON-OFF control
  • No load power consumption<0.5W
  • All using 105℃ long life electrolytic capacitors
  • 5 years warranty

Specifications

MSP-100-12Specifications from the official datasheet (2025-03-17 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
8.5A
CURRENT RANGE
0 ~ 8.5A
RATED POWER
102W
RIPPLE & NOISE (max.)Note.2
120mVp-p
VOLTAGE ADJ. RANGE
11.4 ~ 13.8V
VOLTAGE TOLERANCENote.3
±1.5%
LINE REGULATION
±0.3%
LOAD REGULATION
±0.8%
SETUP, RISE TIME
2500ms, 100ms/230VAC 2500ms, 100ms/115VAC at full load
HOLD UP TIME (Typ.)
50ms/230VAC 20ms/115VAC at full load

INPUT

VOLTAGE RANGENote.5
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF>0.95/230VAC PF>0.98/115VAC at full load
EFFICIENCY (Typ.)
87.5%
AC CURRENT (Typ.)
1.2A/115VAC 0.6A/230VAC
INRUSH CURRENT (Typ.)
35A/115VAC 65A/230VAC
LEAKAGE CURRENTNote.6
Earth leakage current < 300μA/264VAC , Touch leakage current < 100μA/264VAC

PROTECTION

OVERLOAD
105 ~ 135% rated output power Protection type : Constant current limiting for Vo=50 ~ 100% of rated voltage, recovers automatically after fault condition is removed
OVER VOLTAGE
14.4 ~ 16.8V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE
Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

REMOTE CONTROL
RC+/RC- : 0 ~ 0.8V= power on ; 4 ~ 10V = power off

ENVIRONMENT

WORKING TEMP.
-40 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.04%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDSNote.4
IEC 60601-1:2005+A1+A2, ANSI/AAMI ES 60601-1:2005+A2, CAN/CSA C22.2 No. 60601-1:2014+A2, EAC TP TC 004 approved Design refer to BS EN/EN60335-1, BS EN/EN 62368-1(by request)
ISOLATION LEVEL
Primary-Secondary: 2×MOOP, Primary-Earth: 1×MOOP, Secondary-Earth: 1×MOOP
WITHSTAND VOLTAGE
I/P-O/P:4KVAC 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
EMC EMISSION
Compliance to BS EN/EN55011 (CISPR11) Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/ EN61000-4-2,3,4,5,6,8,11, BS EN/ EN55035, BS EN/ EN60601-1-2 , EAC TP TC 020

OTHERS

MTBF
2272.8K hrs min. Telcordia SR-332 (Bellcore) ; 352.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
159*97*38mm (L*W*H)
PACKING
0.55Kg; 24pcs/ 14.3Kg/0.9CUFT
Test conditions and notes8
  1. 1. All parameters NOT specially mentioned are measured at 230VAC 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. Derating may be needed under low input voltages. Please check the derating curve for more details.
  6. 6. Touch current was measured from primary input to DC output.
  7. 7. When the input voltage is less than 40VAC, the SPS may exhibit degradation of performance. The final product manufacturers must re-confirm this deviation that does not affect basic safety or essential performance.
  8. 8. 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

MSP-100-12 Mechanical Specification
Mechanical Specification
MSP-100-12 Block Diagram
Block Diagram
MSP-100-12 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the MSP-100-12 for a 12V industrial control or automation system?

Yes. It provides constant-voltage 12V output up to 8.5A with 102W total power, which suits 12V control electronics and automation assemblies designed for regulated DC input. The wide 85-264VAC input also supports use across different AC mains conditions.

Is the MSP-100-12 suitable for 12V embedded or IT equipment that runs continuously?

It can be a good match for 12V embedded and IT hardware that needs a stable constant-voltage source within 8.5A and 102W. The spec list also includes active PFC and no-load power consumption below 0.5W, which is relevant for efficient always-on systems.

Can this power supply be used in medical or medical-adjacent equipment designs?

The provided features state that it is medical safety approved. For 12V equipment that fits within 8.5A and 102W, that makes it more appropriate for medical-oriented designs than a general-purpose supply without that approval note.

Would the MSP-100-12 work for a 12V industrial communications or network appliance?

Yes, if the equipment is designed for constant-voltage 12V input and stays within the 8.5A and 102W rating. Its 159.0 × 97.0 × 38.0 mm size can also help in compact equipment layouts where internal space is controlled.

Can the MSP-100-12 handle colder or hotter environments than a typical indoor-only supply?

Its operating temperature range is -40°C to +60°C, with output derating at higher ambient temperatures per the sheet's derating curve. No IP rating is listed, so that temperature capability still points to protected installation rather than exposed outdoor use.

What makes the MSP-100-12 different from other MSP-100 voltage options?

Within the MSP-100 group shown, the 12V model is 102W at 8.5A, while MSP-100-15 is 105W at 15V and 7A, MSP-100-24 is 108W at 24V and 4.5A, MSP-100-36 is 104.4W at 36V and 2.9A, and MSP-100-48 is 105.6W at 48V and 2.2A. Lower-voltage versions include MSP-100-3.3 at 66W and 20A, MSP-100-5 at 85W and 17A, and MSP-100-7.5 at 101.3W and 13.5A.

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Mean Well MSP-100-12 Power Supply 102W 12V 8.5A
Mean Well

Mean Well MSP-100-12 Power Supply 102W 12V 8.5A

Log in to see price

MSP-100-12 is the 12V output model of this series: rated current 8.5A, rated power 102W, typical efficiency 87.5%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function
  • High efficiency up to 90%
  • Withstand 300VAC surge input for 5 seconds
  • Protections: Short circuit / Overload / Over voltage
  • Protections: Over temperature (optional)
  • Cooling by free air convection
  • 1U low profile 38mm
  • Medical safety approved (MOOP level)
  • Built-in remote ON-OFF control
  • No load power consumption<0.5W
  • All using 105℃ long life electrolytic capacitors
  • 5 years warranty

Model

  • 100W 12V
  • 1000W 12V
  • 200W 12V
  • 300W 12V
  • 450W 12V
  • 600W 12V
View product

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