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Mean Well

Mean Well PT-45C Power Supply 45W 5V 15V -15V 3A

low leakage current < 0.5mAsmall and compact
SKU PT-45C
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Overview

PT-45C is the 5V 15V -15V output model of this series: rated current 3A 1.6A 0.3A, rated power 43.5W, 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

PT-45CSpecifications from the official datasheet (2024-10-30 edition)

OUTPUT

OUTPUT NUMBER
CH1 CH2 CH3
DC VOLTAGE
5V 15V -15V
RATED CURRENT
3A 1.6A 0.3A
CURRENT RANGE
0.4 ~ 5A 0.2 ~ 2.3A 0 ~ 0.5A
RATED POWER
43.5W
OUTPUT POWER (max.)
Rated output power for convection; 52W with 18CFM min. Forced air
RIPPLE & NOISE (max.)Note.2
50mVp-p 120mVp-p 100mVp-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. 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. Mounting holes M1 and M2 should be grounded for EMI purposes.
  6. 6. Heat Sink HS1,HS2 can not be shorted.
  7. 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

PT-45C Mechanical Specification
Mechanical Specification
PT-45C Block Diagram
Block Diagram
PT-45C Derating Curve
Derating Curve

Downloads

FAQ

Can I use the PT-45C for a 5V controller that also needs +15V and -15V rails?

The PT-45C is a constant voltage power supply with a 5V output rated at 3A and a total power rating of 43.5W. Its product configuration includes 5V, 15V, and -15V rails, which suits control or signal-processing hardware built around those voltages.

Is the PT-45C suitable for embedded or industrial electronics with bipolar analog sections?

This model can fit assemblies that need a regulated 5V rail alongside +15V and -15V rails in the same supply family. The 5V output is specified at 3A, with total power rated at 43.5W.

Can the PT-45C be used in compact automation or test equipment?

The housing measures 127.0 x 76.0 x 28.0 mm and the unit weighs 0.21 kg, so it is well suited to smaller enclosed equipment layouts. It is intended for applications needing a 5V 3A supply in a 43.5W platform.

Is the PT-45C okay for exposed outdoor use?

The listed operating temperature range is -10°C to +60°C, but the specs provided do not show an IP rating. That makes it better suited to indoor equipment or protected enclosures than to direct outdoor exposure.

How does the PT-45C stack up against the other PT family options?

The PT-45 sheet lists PT-45A at 40.5W with 5V 3A, 12V 2A and -5V 0.3A outputs, and PT-45B at 42.6W with 5V 3A, 12V 2A and -12V 0.3A. PT-45C is rated at 43.5W with 5V 3A, 15V 1.6A and -15V 0.3A outputs, so it has the highest rated power of the three and is the only one with ±15V rails.

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Mean Well PT-45C Power Supply 45W 5V 15V -15V 3A
Mean Well

Mean Well PT-45C Power Supply 45W 5V 15V -15V 3A

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PT-45C is the 5V 15V -15V output model of this series: rated current 3A 1.6A 0.3A, rated power 43.5W, 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
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