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Mean Well PSD-45B-12 DC-DC Converter - 45W - 18~36V in 12V out 3.75A
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PSD-45B-12 is the 12V output model of this series: rated current 3.75A, rated power 45W, typical efficiency 82%.
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
OUTPUT
- DC VOLTAGE
- 12V
- RATED CURRENT
- 3.75A
- CURRENT RANGE
- 0 ~ 3.75A
- RATED POWER
- 45W
- 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
- 18 ~ 36VDC (24VDC)
- EFFICIENCY(Typ.)
- 82%
- 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.All parameters NOT specially mentioned are measured at normal input,rated load and 25℃ of ambient temperature.
- 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.Tolerance:includes set up tolerance,line regulation and load regulation.
- 4.The interval of turning ON and OFF the power supply continuously is 2 seconds.
- 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
Downloads
FAQ
Can I use the PSD-45B-12 to power a 12V PLC, relay bank, or control panel from an 18-36VDC source?
Yes, this version is designed for a wider 18-36VDC input range and delivers a constant 12V output. It can support 12V control loads up to 45W and 3.75A.
Is the PSD-45B-12 suitable for 12V security, alarm, or monitoring electronics inside industrial equipment?
It can be a fit for 12V monitoring and alarm subsystems that need constant-voltage power and stay within 3.75A. Compared with a 30W class unit, this model provides up to 45W for higher-demand 12V loads.
Would this converter work for 12V embedded computers, HMIs, or communication devices?
Yes, provided the equipment requires 12V output and the total draw stays within 45W. The available output current is 3.75A, which gives more headroom than 12V 30W models rated at 2.5A.
Can the PSD-45B-12 run multiple 12V industrial accessories from one converter?
It can, as long as the combined accessory load remains at or below 12V, 3.75A, and 45W. That makes it usable for grouped 12V electronics in one enclosure when the source falls within 18-36VDC.
Is the PSD-45B-12 rated for outdoor or washdown locations?
The operating temperature range is -10°C to +60°C, so those are the stated thermal limits. No IP rating is listed, which means the published specs do not verify outdoor, wet, or dust-tight use.
Payment & Security
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Other PSD-45B Models
2 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well PSD-45B-5 DC-DC Converter - 45W - 18~36V in 5V out 9A | 45W | 5V | 9A | IP20 | View |
| Mean Well PSD-45B-24 DC-DC Converter - 45W - 18~36V in 24V out 1.875A | 45W | 24V | 1.875A | IP20 | View |
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