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Mean Well

Mean Well PSD-45A-12 DC-DC Converter - 30W - 9~18V in 12V out 2.5A

2:1 wide input range1.5~2KVAC isolation by models
SKU PSD-45A-12
$22.22 USD
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In stock
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Overview

PSD-45A-12 is the 12V output model of this series: rated current 2.5A, rated power 30W, typical efficiency 78%.

Features

  • 2:1 wide input range
  • Protections:Short circuit/Over load /Over voltage/ Polarity
  • Cooling by free air convection
  • Built-in EMI filter, low ripple noise
  • 100% full load burn-in test
  • Fixed switching frequency at 96KHZ
  • Low cost
  • High reliability
  • 2 year warranty

Specifications

PSD-45A-12Specifications from the official datasheet (2024-10-30 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
2.5A
CURRENT RANGE
0 ~ 2.5A
RATED POWER
30W
RIPPLE & NOISE (max.)Note.2
120mVp-p
VOLTAGE ADJ RANGE
10.8 ~13.2V
VOLTAGE TOLERANCENote.3
± 2.0%
LINE REGULATION
± 1.0%
LOAD REGULATION
± 1.0%
SETUP, RISE, HOLD UP TIME
1000ms, 50ms, ----/12VDC/24VDC at full load; 1500ms,50ms,----48VDC at full load

INPUT

VOLTAGE RANGE
9.2 ~18VDC (12VDC)
EFFICIENCY(Typ.)
78%
DC CURRENT(Typ.)
3.5A/12VDC 2.5A/24VDC 1.2A/48VDC

PROTECTION

OVER LOAD
105% -160% rated output power Protection type :shut down, Re-power on after fault condition is removed
OVER VOLTAGE
13.8~ 16.2V/10%load Protection type : Hiccup mode, recovery automatically after fault condition is removed

ENVIRONMENT

WORKING TEMP.
-10 ~ +60℃ (Refer to output load derating curve),20~90%RH non-condensing
WORKING HUMIDITY
20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY
-20 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.05%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, Period for 60min.each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS
TUV BS EN/EN62368-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE
I/P-O/P:1.5KVAC I/P-FG:2.0KVAC 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/EN61000-6-1 Light industry level, EAC TP TC 020

OTHERS

MTBF
3067.4K hrs min. Telcordia SR-332 (Bellcore) ; 463.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
127*76*30mm (L*W*H)
PACKING
0.19Kg;72pcs/15.6Kg/1.28CUFT
Test conditions and notes5
  1. 1.All parameters NOT specially mentioned are measured at normal input,rated load and 25℃ of ambient temperature.
  2. 2.Ripple & noise are measued at 20 MHz of bandwidth by using a 12inch twisted pair-wire termined with a 0.1uf & 47uf capacitor.
  3. 3.Tolerance:includes set up tolerance,line regulation and load regulation.
  4. 4.The interval of turning ON and OFF the power supply continuously is 2 seconds.
  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

PSD-45A-12 Mechanical Specification
Mechanical Specification
PSD-45A-12 Block Diagram
Block Diagram
PSD-45A-12 Output Derating
Output Derating

Downloads

FAQ

Can I use the PSD-45A-12 to run a 12V PLC accessory or control circuit from a 9-18VDC source?

Yes, this model is a constant-voltage DC-DC converter with a 12V output and a 9.2-18VDC input range. It is suited to 12V industrial control loads that stay within its 30W and 2.5A output limits.

Is the PSD-45A-12 a fit for 12V embedded systems or industrial interface boards?

It can fit 12V embedded or interface hardware when the system needs a regulated 12V output and the total draw does not exceed 2.5A or 30W. The 2:1 wide input range also helps when the available source falls within 9.2-18VDC.

Can this converter power a small 12V relay, sensor, or alarm subsystem in automation equipment?

Yes, it is intended for constant-voltage 12V loads and provides up to 2.5A. That makes it appropriate for smaller 12V automation subcircuits as long as the combined load remains within 30W.

Would the PSD-45A-12 work for 12V mobile or battery-backed electronics inside a control enclosure?

It is often a practical fit where the source is within 9.2-18VDC and the downstream electronics require 12V constant-voltage power. The available output is capped at 30W and 2.5A, so the enclosure load has to stay inside those limits.

Is the PSD-45A-12 suitable for outdoor or harsh-environment use?

The listed operating temperature is -10°C to +60°C, so that is the defined thermal range. No IP rating is provided in the specs, so the product data does not confirm outdoor, wet, or dust-exposed use.

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Other PSD-45A Models

2 other models
ModelPowerVoltageCurrentIP Rating
Mean Well PSD-45A-5 DC-DC Converter - 30W - 9~18V in 5V out 6A 30W 5V 6A IP20 View
Mean Well PSD-45A-24 DC-DC Converter - 30W - 9~18V in 24V out 1.25A 30W 24V 1.25A IP20 View
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Mean Well PSD-45A-12 DC-DC Converter - 30W - 9~18V in 12V out 2.5A
Mean Well

Mean Well PSD-45A-12 DC-DC Converter - 30W - 9~18V in 12V out 2.5A

$22.22 USD

PSD-45A-12 is the 12V output model of this series: rated current 2.5A, rated power 30W, typical efficiency 78%.

Features

  • 2:1 wide input range
  • Protections:Short circuit/Over load /Over voltage/ Polarity
  • Cooling by free air convection
  • Built-in EMI filter, low ripple noise
  • 100% full load burn-in test
  • Fixed switching frequency at 96KHZ
  • Low cost
  • High reliability
  • 2 year warranty
View product

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