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Mean Well PT-45A Power Supply 45W 5V 12V -5V 3A
Overview
PT-45A is the 5V 12V -5V output model of this series: rated current 3A 2A 0.3A, rated power 40.5W, typical efficiency 75%.
Features
- Universal AC input/Full range
- Low leakage current<0.5mA
- Protections: Short circuit / Overload / Over voltage
- Cooling by free air convection
- 100% full load burn-in test
- Fixed switching frequency at 65KHz
- 2 years warranty
Specifications
OUTPUT
- OUTPUT NUMBER
- CH1 CH2 CH3
- DC VOLTAGE
- 5V 12V -5V
- RATED CURRENT
- 3A 2A 0.3A
- CURRENT RANGE
- 0.4 ~ 5A 0.2 ~ 2.5A 0 ~ 0.5A
- RATED POWER
- 40.5W
- OUTPUT POWER (max.)
- Rated output power for convection; 52W with 18CFM min. Forced air
- RIPPLE & NOISE (max.)Note.2
- 50mVp-p 120mVp-p 50mVp-p
- VOLTAGE ADJ. RANGE
- CH1:4.75 ~ 5.5V
- VOLTAGE TOLERANCENote.3
- ±4.0% ±7.0% ±5.0%
- LINE REGULATION
- ±1.0% ±2.0% ±1.0%
- LOAD REGULATION
- ±3.0% ±4.0% ±1.0%
- SETUP, RISE TIME
- 800ms, 20ms at full load
- HOLD UP TIME (Typ.)
- 60ms at full load
INPUT
- VOLTAGE RANGE
- 90 ~ 264VAC 127 ~370VDC
- FREQUENCY RANGE
- 47 ~ 440Hz
- EFFICIENCY (Typ.)
- 75%
- AC CURRENT (Typ.)
- 1A/115VAC 0.7A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 15A/115VAC 30A/230VAC
- LEAKAGE CURRENT
- <0.75mA
PROTECTION
- OVERLOAD
- 53 ~ 75W rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed.
- OVER VOLTAGE
- CH1: 5.75 ~ 6.75VDC Protection type : Hiccup mode, recovers automatically after fault condition is removed.
ENVIRONMENT
- WORKING TEMP.
- -10 ~ +60℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -20 ~ +85℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.04%/℃ (0 ~ 50℃) on +5V output
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDS
- UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004 approved
- WITHSTAND VOLTAGE
- I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC 1min.
- ISOLATION RESISTANCE
- I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to BS EN/EN55032 (CISPR32) 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, light industry level, EAC TP TC 020
OTHERS
- MTBF
- 3291.3K hrs min. Telcordia SR-332 (Bellcore) ; 456.9K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 127*76*28mm (L*W*H)
- PACKING
- 0.21Kg; 72pcs/17Kg/1.28CUFT
Test conditions and notes7
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
- 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. Tolerance : includes set up tolerance, line regulation and load regulation.
- 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. Mounting holes M1 and M2 should be grounded for EMI purposes.
- 6. Heat Sink HS1,HS2 can not be shorted.
- 7. 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
Certificates8
Test reports1
Catalogues1
FAQ
Can I use the PT-45A for a 5V industrial controller that also needs 12V and -5V rails?
The PT-45A is a constant voltage power supply with a 5V output rated at 3A and a total power rating of 40.5W. Its product configuration includes 5V, 12V, and -5V rails, so it fits control or interface boards built around those voltages.
Is the PT-45A suitable for embedded systems with a 5V logic section and legacy analog circuitry?
This model can fit embedded assemblies that use a 5V logic rail and also require 12V and -5V rails in the same power supply family. The 5V output is rated at 3A, and the overall unit is rated for 40.5W.
Can the PT-45A power a compact automation panel where space is limited?
The PT-45A is relatively compact at 127.0 x 76.0 x 28.0 mm and weighs 0.21 kg. That makes it a practical option for smaller industrial or automation assemblies that need a 5V 3A supply within a 40.5W platform.
Is the PT-45A appropriate for outdoor or washdown environments?
The published operating temperature range is -10°C to +60°C, but the listed specs do not include an IP rating. That makes it a better fit for protected indoor equipment or enclosed industrial systems than for exposed outdoor or washdown conditions.
How does the PT-45A compare with other Mean Well PT series siblings?
The PT-45 sheet covers three models. PT-45A is 40.5W with 5V 3A, 12V 2A and -5V 0.3A outputs; PT-45B is 42.6W with 5V 3A, 12V 2A and -12V 0.3A; PT-45C is 43.5W with 5V 3A, 15V 1.6A and -15V 0.3A. All share the 127 x 76 x 28 mm size and 90~264VAC input, so PT-45A has the lowest rated power of the three and is the one with a -5V rail.
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Other PT Series Models
7 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well PT-65C Power Supply 65W 5V 15V -15V 5.5A | 65W | 5V | 5.5A | IP20 | $20.75 | View |
| Mean Well PT-65D Power Supply 65W 5V 12V 24V 4A | 68W | 5V | 4A | IP20 | $20.75 | View |
| Mean Well PT-65B Power Supply 65W 5V 12V -12V 5.5A | 63.5W | 5V | 5.5A | IP20 | $20.75 | View |
| Mean Well PT-65A Power Supply 65W 5V 12V -5V 5.5A | 60W | 5V | 5.5A | IP20 | $20.75 | View |
| Mean Well PT-6503 Power Supply 65W 5V 5V 12V 6A | 61.8W | 5V | 6A | IP20 | $26.60 | View |
| Mean Well PT-45C Power Supply 45W 5V 15V -15V 3A | 43.5W | 5V | 3A | IP20 | $19.10 | View |
| Mean Well PT-45B Power Supply 45W 5V 12V -12V 3A | 42.6W | 5V | 3A | IP20 | $19.10 | View |
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