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Mean Well

Mean Well PM-20-12 Power Supply 20W 12V 1.8A

SKU PM-20-12
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End of Life, Succeeded by MPM-20-12
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Overview

PM-20-12 is the 12V output model of this series: rated current 1.8A, rated power 21.6W, typical efficiency 81%.

Features

  • Universal AC input / Full range
  • Low leakage current <300μA
  • Protections: Short circuit / Overload / Over voltage
  • Ultra-miniature size, light weight
  • Cooling by free air convection
  • Medical safety approved (2 x MOPP between primary to secondary)
  • No load power consumption<0.75W
  • 100% full load burn-in test
  • Fixed switching frequency at 90KHz
  • High reliability
  • Suitable for BF application with appropriate system consideration
  • 3 years warranty

Specifications

PM-20-12Specifications from the official datasheet (2022-09-20 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
1.8A
CURRENT RANGE
0 ~ 1.8A
RATED POWER
21.6W
RIPPLE & NOISE (max.)Note.2
150mVp-p
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
500ms, 20ms/230VAC 500ms, 20ms/115VAC at full load
HOLD UP TIME (Typ.)
50ms/230VAC 15ms/115VAC at full load

INPUT

VOLTAGE RANGE
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 440Hz
EFFICIENCY (Typ.)
81%
AC CURRENT (Typ.)
0.6A/115VAC 0.4A/230VAC
INRUSH CURRENT (Typ.)
COLD START 30A/115VAC 65A/230VAC
LEAKAGE CURRENTNote.6
Earth leakage current < 300 μA/264VAC , Touch current < 100μ A/264VAC

PROTECTION

OVERLOAD
Above 105% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
13.8 ~ 16.2V Protection type : Shut off o/p voltage, clamping by zener diode

ENVIRONMENT

WORKING TEMP.
-20 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS
ANSI/AAMI ES60601-1, TUV EN60601-1, IEC60601-1, EAC TP TC 004 approved
ISOLATION LEVEL
Primary-Secondary: 2xMOPP, Primary-Earth:1xMOPP, Secondary-Earth:1xMOPP
WITHSTAND VOLTAGE
I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to EN55011(CISPR11),EN55032 (CISPR32) Class B, EN61000-3-2,-3, EAC TP TC 020
EMC IMMUNITY
Compliance to EN61000-4-2,3,4,5,6,8,11, EN55035, EN60601-1-2, EN61204-3, medical level, EAC TP TC 020

OTHERS

MTBF
487.8Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
94*56*22.7mm (L*W*H)
PACKING
0.18Kg; 90pcs/17.2Kg/0.94CUFT
Test conditions and notes6
  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 0.1uf & 47uf 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 http://www.meanwell.com)
  5. 5. Touch current was measured from primary input to DC output.
  6. 6. 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

PM-20-12 Block Diagram
Block Diagram
PM-20-12 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the PM-20-12 for a 12V PLC accessory or control circuit?

Yes, it is a constant-voltage 12V supply rated for 1.8A and 21.6W. It fits small 12V control and automation loads as long as the total requirement stays within 1.8A and 21.6W.

Is the PM-20-12 suitable for 12V sensors, relays, or monitoring hardware in industrial equipment?

It can be used with 12V sensors, relays, and monitoring electronics that require regulated 12V DC. The available output is 1.8A, with a maximum of 21.6W.

Can this model power a small 12V embedded or automation subsystem?

It is intended for constant-voltage 12V applications, so it can support small embedded or automation subsystems designed for 12V input. The connected load must remain within the 21.6W and 1.8A output limits.

Is the PM-20-12 intended for indoor or outdoor environments?

The operating temperature range is -20°C to +60°C, which defines its temperature envelope. No IP rating is listed in the specs, so the product data does not indicate protection for outdoor exposure or wet locations.

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Mean Well

Mean Well PM-20-12 Power Supply 20W 12V 1.8A

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PM-20-12 is the 12V output model of this series: rated current 1.8A, rated power 21.6W, typical efficiency 81%.

Features

  • Universal AC input / Full range
  • Low leakage current <300μA
  • Protections: Short circuit / Overload / Over voltage
  • Ultra-miniature size, light weight
  • Cooling by free air convection
  • Medical safety approved (2 x MOPP between primary to secondary)
  • No load power consumption<0.75W
  • 100% full load burn-in test
  • Fixed switching frequency at 90KHz
  • High reliability
  • Suitable for BF application with appropriate system consideration
  • 3 years warranty
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