MEAN WELL PD-45 series: Dual-Output Open-Frame AC/DC Power Supply - PD-45A

Description

MEAN WELL PD-45A is a dual-output open-frame AC/DC power supply with +5 V and +12 V outputs. It provides 40 W total with natural convection, or up to 52 W with at least 18 CFM airflow, within the stated current and derating limits.

Product Datasheet

Download MEAN WELL PD-45 Datasheet (PDF)

The PD-45 section is on PDF pages 3, 4. Refer to the complete mechanical drawings and notes when planning installation.

Model and Selection

Complete model PD-45A.
Series and format PD-45 dual-output open-frame AC/DC switching power supply.
Output arrangement CH1 +5 V and CH2 +12 V share the COM terminals. Both channels belong to one complete power supply.
Natural-convection rating 40 W total across both outputs, subject to the derating curve.
Forced-air rating Maximum 52 W total with at least 18 CFM airflow, subject to the applicable operating limits.
Factory burn-in 100% full-load burn-in test.

Select the load using both channel current ranges and the applicable combined-power limit. The maximum currents of both channels cannot be used simultaneously if their combined output power exceeds that limit.

CH1 Output

Nominal output +5 VDC relative to COM.
Rated current 3.2 A.
Current range 0.4–5 A; observe this minimum load and the combined-power limit.
Ripple and noise, maximum 50 mVp-p.
Voltage tolerance ±4.0%.
Line regulation ±1.0%.
Load regulation ±3.0%.
Voltage adjustment 4.75–5.5 V for CH1.

CH2 Output

Nominal output +12 VDC relative to COM.
Rated current 2 A.
Current range 0.2–2.5 A; observe this minimum load and the combined-power limit.
Ripple and noise, maximum 120 mVp-p.
Voltage tolerance ±7.0%.
Line regulation ±2.0%.
Load regulation ±4.0%.

Output Conditions

Combined natural-convection power 40 W, using the two rated-current entries as the reference loading.
Efficiency, typical 77%.
Tolerance definition Includes set-up tolerance, line regulation and load regulation.

Unless otherwise stated, parameters are measured at 230 VAC input, rated load and 25°C ambient. Ripple and noise are measured with 20 MHz bandwidth, using a 12-inch twisted pair terminated with parallel 0.1 µF and 47 µF capacitors. Keep both channel currents within their specified ranges and apply thermal and input derating together.

Input and Timing

AC input 90–264 VAC; 47–440 Hz.
DC input 127–370 VDC.
AC current, typical 1 A at 115 VAC; 0.7 A at 230 VAC.
Cold-start inrush, typical 15 A at 115 VAC; 30 A at 230 VAC.
Leakage current <0.75 mA.
Set-up / rise time 800 ms / 20 ms at full load.
Hold-up time, typical 60 ms at full load.
Switching frequency Fixed 65 kHz.

Protection

Short circuit / overload Overload threshold 53–75 W. Hiccup mode, with automatic recovery after the fault is removed.
CH1 overvoltage 5.75–6.75 VDC on CH1; hiccup mode, with automatic recovery after the fault is removed.

Cooling and Environment

Working ambient −10 to +60°C, subject to the horizontal-installation derating curve.
Temperature derating 80% load at −10°C, rising to 100% at 0°C; 100% through approximately 45°C, then decreasing to 50% at 60°C.
Cooling and total power Natural convection uses the 40 W model rating. At least 18 CFM forced airflow is required for the separate 52 W maximum total rating.
Static-characteristic curves The A-model curves show +5 V and +12 V output voltage and ripple versus input at 60 Hz. Use these together with the specified input range; they do not extend that range.
Altitude derating Above 2000 m, reduce the allowable ambient by 3.5°C per 1000 m for fanless cooling, or by 5°C per 1000 m with fan cooling.
Operating humidity 20–90% RH, non-condensing.
Storage −20 to +85°C; 10–95% RH.
Temperature coefficient ±0.04%/°C over 0–50°C, on the +5 V output.
Vibration 10–500 Hz, 2 G; 10 minutes per cycle, for 60 minutes along each X, Y and Z axis.

Dimensions and Installation

Dimensions, L × W × H 127 × 76 × 28 mm.
Mounting holes Four Ø3.8 mm holes, with 115.8 × 64.8 mm center spans and 5.6 mm edge offsets. General drawing tolerance ±1 mm.
Safety grounding Grounding is required; M1 is the safety-ground point. Ground mounting holes M1 and M2 for EMI purposes.
Heat-sink clearance HS1 and HS2 must not be shorted together.
Fitted AC fuse FS1: F4A/250V.

Follow the complete mechanical drawing for connector orientation, clearances and mounting. Install the component power supply in suitable final equipment.

Connections and Mating Parts

AC input CN1 Molex 5277-02 or equivalent: pin 1 AC/N; pin 2 AC/L.
DC output CN2 Molex 5273-06 or equivalent: pin 1 +V (CH2, +12 V); pins 2 and 3 +5 V (CH1); pins 4 and 5 COM; pin 6 NC.
Mating housings Molex 5195 family or equivalent, matched to each connector circuit count.
Mating terminals Molex 5194 family or equivalent.

Select the complete mating housing and contacts for the circuit count and wire assembly shown. Loose mating parts, an external fan and mounting hardware are not stated as included.

Safety and EMC

Safety approvals UL62368-1, TUV BS EN/EN62368-1 and EAC TP TC004 approved; the cover also identifies IEC62368-1 CB certification.
Withstand voltage Input/output 3 kVAC; input/FG 2 kVAC; output/FG 0.5 kVAC.
Insulation resistance Input/output, input/FG and output/FG: 100 MΩ at 500 VDC, 25°C and 70% RH.
Emissions BS EN/EN55032 (CISPR32) Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020.
Immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035, light-industry level; EAC TP TC020.

EMC testing uses a 360 × 360 mm metal plate, 1 mm thick. Reconfirm compliance in the completed equipment with its actual wiring and mounting. Component approvals do not certify the complete system.

Weight and Reliability

Single-unit catalogue reference weight 200 g from the explicit per-unit PACKING value; a catalogue reference rather than measured net or shipping weight.
Packing reference 0.2 kg per unit; 72 pieces / 16 kg / 1.28 CUFT.
MTBF, minimum estimates 3814.3 thousand hours, Telcordia SR-332 (Bellcore); 498.8 thousand hours, MIL-HDBK-217F at 25°C.
Manufacturer warranty 2-year manufacturer warranty, subject to applicable terms.
Catalogue revision PD-45-SPEC, 2024-10-30; PDF pages 3–4.

MEAN WELL PD-45 series: Dual-Output Open-Frame AC/DC Power Supply - PD-45A

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MEAN WELL PD-45A is a dual-output open-frame AC/DC power supply with +5 V and +12 V outputs. It provides 40... Read more

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    Description

    MEAN WELL PD-45A is a dual-output open-frame AC/DC power supply with +5 V and +12 V outputs. It provides 40 W total with natural convection, or up to 52 W with at least 18 CFM airflow, within the stated current and derating limits.

    Product Datasheet

    Download MEAN WELL PD-45 Datasheet (PDF)

    The PD-45 section is on PDF pages 3, 4. Refer to the complete mechanical drawings and notes when planning installation.

    Model and Selection

    Complete model PD-45A.
    Series and format PD-45 dual-output open-frame AC/DC switching power supply.
    Output arrangement CH1 +5 V and CH2 +12 V share the COM terminals. Both channels belong to one complete power supply.
    Natural-convection rating 40 W total across both outputs, subject to the derating curve.
    Forced-air rating Maximum 52 W total with at least 18 CFM airflow, subject to the applicable operating limits.
    Factory burn-in 100% full-load burn-in test.

    Select the load using both channel current ranges and the applicable combined-power limit. The maximum currents of both channels cannot be used simultaneously if their combined output power exceeds that limit.

    CH1 Output

    Nominal output +5 VDC relative to COM.
    Rated current 3.2 A.
    Current range 0.4–5 A; observe this minimum load and the combined-power limit.
    Ripple and noise, maximum 50 mVp-p.
    Voltage tolerance ±4.0%.
    Line regulation ±1.0%.
    Load regulation ±3.0%.
    Voltage adjustment 4.75–5.5 V for CH1.

    CH2 Output

    Nominal output +12 VDC relative to COM.
    Rated current 2 A.
    Current range 0.2–2.5 A; observe this minimum load and the combined-power limit.
    Ripple and noise, maximum 120 mVp-p.
    Voltage tolerance ±7.0%.
    Line regulation ±2.0%.
    Load regulation ±4.0%.

    Output Conditions

    Combined natural-convection power 40 W, using the two rated-current entries as the reference loading.
    Efficiency, typical 77%.
    Tolerance definition Includes set-up tolerance, line regulation and load regulation.

    Unless otherwise stated, parameters are measured at 230 VAC input, rated load and 25°C ambient. Ripple and noise are measured with 20 MHz bandwidth, using a 12-inch twisted pair terminated with parallel 0.1 µF and 47 µF capacitors. Keep both channel currents within their specified ranges and apply thermal and input derating together.

    Input and Timing

    AC input 90–264 VAC; 47–440 Hz.
    DC input 127–370 VDC.
    AC current, typical 1 A at 115 VAC; 0.7 A at 230 VAC.
    Cold-start inrush, typical 15 A at 115 VAC; 30 A at 230 VAC.
    Leakage current <0.75 mA.
    Set-up / rise time 800 ms / 20 ms at full load.
    Hold-up time, typical 60 ms at full load.
    Switching frequency Fixed 65 kHz.

    Protection

    Short circuit / overload Overload threshold 53–75 W. Hiccup mode, with automatic recovery after the fault is removed.
    CH1 overvoltage 5.75–6.75 VDC on CH1; hiccup mode, with automatic recovery after the fault is removed.

    Cooling and Environment

    Working ambient −10 to +60°C, subject to the horizontal-installation derating curve.
    Temperature derating 80% load at −10°C, rising to 100% at 0°C; 100% through approximately 45°C, then decreasing to 50% at 60°C.
    Cooling and total power Natural convection uses the 40 W model rating. At least 18 CFM forced airflow is required for the separate 52 W maximum total rating.
    Static-characteristic curves The A-model curves show +5 V and +12 V output voltage and ripple versus input at 60 Hz. Use these together with the specified input range; they do not extend that range.
    Altitude derating Above 2000 m, reduce the allowable ambient by 3.5°C per 1000 m for fanless cooling, or by 5°C per 1000 m with fan cooling.
    Operating humidity 20–90% RH, non-condensing.
    Storage −20 to +85°C; 10–95% RH.
    Temperature coefficient ±0.04%/°C over 0–50°C, on the +5 V output.
    Vibration 10–500 Hz, 2 G; 10 minutes per cycle, for 60 minutes along each X, Y and Z axis.

    Dimensions and Installation

    Dimensions, L × W × H 127 × 76 × 28 mm.
    Mounting holes Four Ø3.8 mm holes, with 115.8 × 64.8 mm center spans and 5.6 mm edge offsets. General drawing tolerance ±1 mm.
    Safety grounding Grounding is required; M1 is the safety-ground point. Ground mounting holes M1 and M2 for EMI purposes.
    Heat-sink clearance HS1 and HS2 must not be shorted together.
    Fitted AC fuse FS1: F4A/250V.

    Follow the complete mechanical drawing for connector orientation, clearances and mounting. Install the component power supply in suitable final equipment.

    Connections and Mating Parts

    AC input CN1 Molex 5277-02 or equivalent: pin 1 AC/N; pin 2 AC/L.
    DC output CN2 Molex 5273-06 or equivalent: pin 1 +V (CH2, +12 V); pins 2 and 3 +5 V (CH1); pins 4 and 5 COM; pin 6 NC.
    Mating housings Molex 5195 family or equivalent, matched to each connector circuit count.
    Mating terminals Molex 5194 family or equivalent.

    Select the complete mating housing and contacts for the circuit count and wire assembly shown. Loose mating parts, an external fan and mounting hardware are not stated as included.

    Safety and EMC

    Safety approvals UL62368-1, TUV BS EN/EN62368-1 and EAC TP TC004 approved; the cover also identifies IEC62368-1 CB certification.
    Withstand voltage Input/output 3 kVAC; input/FG 2 kVAC; output/FG 0.5 kVAC.
    Insulation resistance Input/output, input/FG and output/FG: 100 MΩ at 500 VDC, 25°C and 70% RH.
    Emissions BS EN/EN55032 (CISPR32) Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020.
    Immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035, light-industry level; EAC TP TC020.

    EMC testing uses a 360 × 360 mm metal plate, 1 mm thick. Reconfirm compliance in the completed equipment with its actual wiring and mounting. Component approvals do not certify the complete system.

    Weight and Reliability

    Single-unit catalogue reference weight 200 g from the explicit per-unit PACKING value; a catalogue reference rather than measured net or shipping weight.
    Packing reference 0.2 kg per unit; 72 pieces / 16 kg / 1.28 CUFT.
    MTBF, minimum estimates 3814.3 thousand hours, Telcordia SR-332 (Bellcore); 498.8 thousand hours, MIL-HDBK-217F at 25°C.
    Manufacturer warranty 2-year manufacturer warranty, subject to applicable terms.
    Catalogue revision PD-45-SPEC, 2024-10-30; PDF pages 3–4.

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