MEAN WELL PD-25 series: Open-Frame Dual-Output AC/DC Power Supply - PD-2512

Description

MEAN WELL PD-2512 is an open-frame dual-output AC/DC power supply. CH1 provides 12 V at 1 A and CH2 provides −12 V at 1 A, with a combined rated power of 24 W. Free-air convection, minimum channel loads and installation-orientation derating apply.

Product Datasheet

Download MEAN WELL PD-25 Datasheet (PDF)

The PD-25 section is on PDF pages 1, 2. Refer to the complete mechanical drawings and notes when planning installation.

Complete Dual-Output Unit

Complete model PD-2512.
Outputs referenced to COM CH1: 12 V DC; CH2: −12 V DC.
Combined rated output power 24 W for the complete two-output supply.
Cooling Free-air convection; apply the horizontal or vertical temperature curve.
Efficiency, typical 74%.

Both channels belong to one power supply. Keep each channel within its specified current range, including the minimum load, and keep total output power within 24 W. The individual maximum currents are not an additional combined-power rating; apply the two channel limits and total power limit together.

CH1 Output Specifications

Nominal output voltage 12 V DC relative to COM.
Rated current 1 A.
Specified current range 0.1 to 1.2 A.
Minimum load current 0.1 A.
Maximum ripple and noise 50 mVp-p.
Voltage tolerance ±4.0%.
Line regulation ±0.5%.
Load regulation ±3.0%.
Overvoltage threshold 13.8 to 16.2 V, with the indicated output polarity.

CH2 Output Specifications

Nominal output voltage −12 V DC relative to COM.
Rated current 1 A.
Specified current range 0.1 to 1.2 A.
Minimum load current 0.1 A.
Maximum ripple and noise 50 mVp-p.
Voltage tolerance ±4.0%.
Line regulation ±0.5%.
Load regulation ±3.0%.
Overvoltage threshold −13.8 to −16.2 V, with the indicated output polarity.

Input, Timing and Test Conditions

Input range 85–264 VAC or 120–370 VDC.
AC frequency 47–63 Hz.
Typical input current 0.65 A at 115 VAC; 0.4 A at 230 VAC.
Typical cold-start inrush 32 A.
Leakage current Less than 0.5 mA at 240 VAC.
Set-up / rise time 250 / 50 ms at 230 VAC; 250 / 30 ms at 115 VAC, full load.
Typical hold-up time 100 ms at 230 VAC; 16 ms at 115 VAC, full load.
Switching frequency Fixed 100 kHz.
Production test 100% full-load burn-in test.

Unless stated otherwise, specifications are measured at 230 VAC input, rated load and 25°C ambient. Ripple/noise uses 20 MHz bandwidth and a 12-inch twisted pair terminated with parallel 0.1 µF and 47 µF capacitors. Voltage tolerance includes set-up tolerance, line regulation and load regulation.

Protection

Short circuit / overload Above 105% of rated output power; hiccup mode with automatic recovery after the fault condition is removed.
Overvoltage response Output shutoff with clamping by a zener diode; channel-specific thresholds are listed above.
Overtemperature Output shutdown; re-power on to recover.

Cooling and Environment

Working temperature −10 to +60°C, subject to the installation-orientation derating curve.
Horizontal installation 80% load at −10°C, rising to 100% at 0°C; full load through 50°C, then decreasing to 60% at 60°C.
Vertical installation 80% load at −10°C, rising to 100% at 0°C; full load through 45°C, then decreasing to 60% at 55°C.
Working humidity 20–90% RH, non-condensing.
Storage −20 to +85°C; 10–95% RH.
Temperature coefficient ±0.03%/°C over 0–50°C on CH1 only.
Vibration 10–500 Hz, 2 G; 10 minutes per cycle, 60 minutes along each X, Y and Z axis.
High-altitude temperature adjustment Above 2000 m, reduce allowable ambient temperature by 3.5°C per 1000 m for fanless models, or 5°C per 1000 m for fan-cooled models.

Maintain free airflow around the power supply. The static-characteristic chart on PDF page 2 illustrates PD-25A output voltage and ripple versus input voltage; it is not a separate maximum-load curve for all models.

Mechanical Installation and Grounding

Dimensions, L × W × H 107 × 61 × 28 mm.
Drawing tolerance ±1 mm.
Mounting holes Four Ø3.5 mm holes; centre spacing 94 × 53 mm. The drawing also marks 6.35 mm and 3.81 mm edge references.
Underside projection 3 mm maximum projection below the board; maintain the required mounting clearance.
Grounding Connect the mounting points identified by the “To Chassis Grounding” arrows to chassis ground.
Heatsink isolation HS1, HS2 and HS3 must not be shorted together.
AC fuse marking 2.5 A / 250 V, marked FS1 in the drawing.

Use the complete mechanical drawing for mounting orientation and electrical clearances. Keep conductive fixings and chassis parts clear of the marked heatsinks.

Connectors and Mating Parts

AC input CN1 Molex 41791-03 or equivalent: pin 1 AC/L; pin 2 no pin; pin 3 AC/N.
Dual output CN2 Molex 41791-04 or equivalent: pin 1 V1 (CH1); pins 2 and 3 COM; pin 4 V2 (CH2).
This model at CN2 Pin 1: 12 V; pins 2–3: COM; pin 4: −12 V.
Mating housing reference Molex 2139 or equivalent, as identified in the connector table.
Terminal reference Molex 2478 or equivalent, as identified in the connector table.

Select the complete mating housing and contact reference for the required circuit count and wire size. The catalogue identifies the connector and mating-part references; it does not specify a supplied cable kit or separate mounting-accessory kit.

Safety and Electromagnetic Compatibility

Listed safety approvals UL62368-1, TUV BS EN/EN62368-1 and EAC TP TC004.
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.
Emission compliance BS EN/EN55032 (CISPR32) Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020; GB9254 Class B and GB17625.1.
Immunity compliance BS EN/EN61000-4-2, -3, -4 and -5; BS EN/EN55035, light-industry level; EAC TP TC020.

This power supply is an installation component. EMC testing uses a 360 × 360 mm metal plate, 1 mm thick. Verify the final equipment against the applicable safety and EMC requirements with its actual mounting and wiring.

Weight, Reliability and Catalogue

Single-unit reference weight 150 g (0.15 kg), explicitly listed per unit in PACKING; not the carton weight.
Carton packing 96 pieces / 15.9 kg / 1.2 CUFT.
MTBF, minimum estimates 5363.3 thousand hours under Telcordia SR-332 (Bellcore); 707.6 thousand hours under MIL-HDBK-217F at 25°C.
Warranty Two-year manufacturer warranty, subject to applicable terms.
Catalogue revision PD-25-SPEC, 2024-10-30; combined PDF pages 1–2.

MEAN WELL PD-25 series: Open-Frame Dual-Output AC/DC Power Supply - PD-2512

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MEAN WELL PD-2512 is an open-frame dual-output AC/DC power supply. CH1 provides 12 V at 1 A and CH2 provides... Read more

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    Description

    MEAN WELL PD-2512 is an open-frame dual-output AC/DC power supply. CH1 provides 12 V at 1 A and CH2 provides −12 V at 1 A, with a combined rated power of 24 W. Free-air convection, minimum channel loads and installation-orientation derating apply.

    Product Datasheet

    Download MEAN WELL PD-25 Datasheet (PDF)

    The PD-25 section is on PDF pages 1, 2. Refer to the complete mechanical drawings and notes when planning installation.

    Complete Dual-Output Unit

    Complete model PD-2512.
    Outputs referenced to COM CH1: 12 V DC; CH2: −12 V DC.
    Combined rated output power 24 W for the complete two-output supply.
    Cooling Free-air convection; apply the horizontal or vertical temperature curve.
    Efficiency, typical 74%.

    Both channels belong to one power supply. Keep each channel within its specified current range, including the minimum load, and keep total output power within 24 W. The individual maximum currents are not an additional combined-power rating; apply the two channel limits and total power limit together.

    CH1 Output Specifications

    Nominal output voltage 12 V DC relative to COM.
    Rated current 1 A.
    Specified current range 0.1 to 1.2 A.
    Minimum load current 0.1 A.
    Maximum ripple and noise 50 mVp-p.
    Voltage tolerance ±4.0%.
    Line regulation ±0.5%.
    Load regulation ±3.0%.
    Overvoltage threshold 13.8 to 16.2 V, with the indicated output polarity.

    CH2 Output Specifications

    Nominal output voltage −12 V DC relative to COM.
    Rated current 1 A.
    Specified current range 0.1 to 1.2 A.
    Minimum load current 0.1 A.
    Maximum ripple and noise 50 mVp-p.
    Voltage tolerance ±4.0%.
    Line regulation ±0.5%.
    Load regulation ±3.0%.
    Overvoltage threshold −13.8 to −16.2 V, with the indicated output polarity.

    Input, Timing and Test Conditions

    Input range 85–264 VAC or 120–370 VDC.
    AC frequency 47–63 Hz.
    Typical input current 0.65 A at 115 VAC; 0.4 A at 230 VAC.
    Typical cold-start inrush 32 A.
    Leakage current Less than 0.5 mA at 240 VAC.
    Set-up / rise time 250 / 50 ms at 230 VAC; 250 / 30 ms at 115 VAC, full load.
    Typical hold-up time 100 ms at 230 VAC; 16 ms at 115 VAC, full load.
    Switching frequency Fixed 100 kHz.
    Production test 100% full-load burn-in test.

    Unless stated otherwise, specifications are measured at 230 VAC input, rated load and 25°C ambient. Ripple/noise uses 20 MHz bandwidth and a 12-inch twisted pair terminated with parallel 0.1 µF and 47 µF capacitors. Voltage tolerance includes set-up tolerance, line regulation and load regulation.

    Protection

    Short circuit / overload Above 105% of rated output power; hiccup mode with automatic recovery after the fault condition is removed.
    Overvoltage response Output shutoff with clamping by a zener diode; channel-specific thresholds are listed above.
    Overtemperature Output shutdown; re-power on to recover.

    Cooling and Environment

    Working temperature −10 to +60°C, subject to the installation-orientation derating curve.
    Horizontal installation 80% load at −10°C, rising to 100% at 0°C; full load through 50°C, then decreasing to 60% at 60°C.
    Vertical installation 80% load at −10°C, rising to 100% at 0°C; full load through 45°C, then decreasing to 60% at 55°C.
    Working humidity 20–90% RH, non-condensing.
    Storage −20 to +85°C; 10–95% RH.
    Temperature coefficient ±0.03%/°C over 0–50°C on CH1 only.
    Vibration 10–500 Hz, 2 G; 10 minutes per cycle, 60 minutes along each X, Y and Z axis.
    High-altitude temperature adjustment Above 2000 m, reduce allowable ambient temperature by 3.5°C per 1000 m for fanless models, or 5°C per 1000 m for fan-cooled models.

    Maintain free airflow around the power supply. The static-characteristic chart on PDF page 2 illustrates PD-25A output voltage and ripple versus input voltage; it is not a separate maximum-load curve for all models.

    Mechanical Installation and Grounding

    Dimensions, L × W × H 107 × 61 × 28 mm.
    Drawing tolerance ±1 mm.
    Mounting holes Four Ø3.5 mm holes; centre spacing 94 × 53 mm. The drawing also marks 6.35 mm and 3.81 mm edge references.
    Underside projection 3 mm maximum projection below the board; maintain the required mounting clearance.
    Grounding Connect the mounting points identified by the “To Chassis Grounding” arrows to chassis ground.
    Heatsink isolation HS1, HS2 and HS3 must not be shorted together.
    AC fuse marking 2.5 A / 250 V, marked FS1 in the drawing.

    Use the complete mechanical drawing for mounting orientation and electrical clearances. Keep conductive fixings and chassis parts clear of the marked heatsinks.

    Connectors and Mating Parts

    AC input CN1 Molex 41791-03 or equivalent: pin 1 AC/L; pin 2 no pin; pin 3 AC/N.
    Dual output CN2 Molex 41791-04 or equivalent: pin 1 V1 (CH1); pins 2 and 3 COM; pin 4 V2 (CH2).
    This model at CN2 Pin 1: 12 V; pins 2–3: COM; pin 4: −12 V.
    Mating housing reference Molex 2139 or equivalent, as identified in the connector table.
    Terminal reference Molex 2478 or equivalent, as identified in the connector table.

    Select the complete mating housing and contact reference for the required circuit count and wire size. The catalogue identifies the connector and mating-part references; it does not specify a supplied cable kit or separate mounting-accessory kit.

    Safety and Electromagnetic Compatibility

    Listed safety approvals UL62368-1, TUV BS EN/EN62368-1 and EAC TP TC004.
    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.
    Emission compliance BS EN/EN55032 (CISPR32) Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020; GB9254 Class B and GB17625.1.
    Immunity compliance BS EN/EN61000-4-2, -3, -4 and -5; BS EN/EN55035, light-industry level; EAC TP TC020.

    This power supply is an installation component. EMC testing uses a 360 × 360 mm metal plate, 1 mm thick. Verify the final equipment against the applicable safety and EMC requirements with its actual mounting and wiring.

    Weight, Reliability and Catalogue

    Single-unit reference weight 150 g (0.15 kg), explicitly listed per unit in PACKING; not the carton weight.
    Carton packing 96 pieces / 15.9 kg / 1.2 CUFT.
    MTBF, minimum estimates 5363.3 thousand hours under Telcordia SR-332 (Bellcore); 707.6 thousand hours under MIL-HDBK-217F at 25°C.
    Warranty Two-year manufacturer warranty, subject to applicable terms.
    Catalogue revision PD-25-SPEC, 2024-10-30; combined PDF pages 1–2.

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