Name: MEAN WELL PSD-30 series: Single-output DC/DC switching power supply - PSD-30B-24
Brand: MEAN WELL
SKU: PSD-30B-24
Price: 31.9 USD
Availability: InStock

MEAN WELL PSD-30 series: Single-output DC/DC switching power supply - PSD-30B-24

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Description

PSD-30B-24 — Single-output DC/DC switching power supply

MEAN WELL PSD-30B-24 is a single-output DC/DC switching power supply with an 18–36 V DC input range. It provides 24 V DC, up to 1.25 A and 30 W rated output, with free-air convection cooling. Apply the specified input-voltage, temperature and mounting-orientation limits.

Download MEAN WELL PSD-30 Datasheet (PDF)
Download MEAN WELL DC-DC Installation Manual (PDF)
Download MEAN WELL EMI Testing Guidance (PDF)

PSD-30: PDF pages 3–4.

Output specifications

Nominal output voltage	24 V DC.
Rated output current	1.25 A.
Output current range	0–1.25 A.
Rated output power	30 W.
Output voltage adjustment	22–26 V DC.
Ripple and noise	150 mVp-p maximum. Measured at 20 MHz bandwidth using a 12-inch twisted-pair lead terminated with 0.1 µF and 47 µF capacitors in parallel.
Voltage tolerance	±1%; includes setup tolerance, line regulation and load regulation.
Line regulation	±1%.
Load regulation	±1%.
Setup and rise time	Setup 2 s; rise time 50 ms, at full load.

Input and efficiency

Input voltage	18–36 V DC. The series has a 2:1 wide input range.
Efficiency	83% typical for this model.
DC input-current table reference	The series table lists 4.5 A at 12 V DC, 2.5 A at 24 V DC and 1.1 A at 48 V DC. These are catalog input-reference figures; use PSD-30B-24 only within its stated 18–36 V DC input range and confirm the applicable figure for the supplied configuration.
Input filtering and output noise	Built-in EMI filtering is shown in the block diagram. The series is designed for low ripple and noise; use the model-specific maximum above.

Protection and environment

Protection functions	Short-circuit, overload, overvoltage and input-polarity protection are listed in the series features.
Overload protection	105–150% of rated output power. Hiccup mode; automatic recovery after the fault condition is removed.
Overvoltage protection	27–32.5 V. Hiccup mode; automatic recovery after the fault condition is removed.
Reverse-polarity response	The internal fuse opens under reverse input polarity.
Cooling	Free-air convection.
Working temperature	−20 to +60°C; apply the appropriate load-derating curve.
Ambient-temperature load curve	Horizontal mounting: 80% load at −20°C, 100% from −10 to +50°C, and 60% at +60°C. Follow the curve between the marked points.
Working humidity	20–90% RH, non-condensing.
Storage conditions	−20 to +85°C; 10–95% RH.
Temperature coefficient	±0.03%/°C over 0–50°C.
High-altitude derating	For this fanless supply, reduce the allowable ambient temperature by 3.5°C per 1000 m above 2000 m altitude.
Vibration	10–500 Hz, 2 G, 10 minutes per cycle; 60 minutes along each of the X, Y and Z axes.

Safety, EMC and reliability

Safety standards and scope	EAC TP TC 004 approved; IEC62368-1 CB approved by DEKRA. BS EN/EN62368-1 is a design reference.
Withstand voltage	Input to output: 1.5 kVAC; input to FG: 2.0 kVAC; output to FG: 0.5 kVAC.
Isolation resistance	Input to output, input to FG and output to FG: 100 MΩ at 500 VDC.
EMC emission	BS EN/EN55032 (CISPR32), Class B; EAC TP TC 020.
EMC immunity	BS EN/EN61000-4-2, -3, -4, -6 and -8; ENV50204; BS EN/EN55035, light-industry level; EAC TP TC 020.
Final-system EMC	The supply is a component intended for installation in a final system. Re-confirm EMC compliance in the complete equipment.
Quality and reliability design	100% full-load burn-in testing; low-cost, high-reliability design.
MTBF	Minimum 3871.7 thousand hours by Telcordia SR-332 (Bellcore); minimum 639.9 thousand hours by MIL-HDBK-217F at 25°C.
Manufacturer warranty	2 years.

Connections, mounting and packing

Dimensions	101.6 × 50.8 × 30 mm (L × W × H). Mechanical drawing units are millimetres; general tolerance ±1 mm.
Mounting drawing	Four Ø3.2 mm mounting holes on 95.25 × 44.45 mm centres, with 3.175 mm edge offsets. Side view: 30 mm height and 3 mm maximum underside lead protrusion. The plan view identifies mounting locations M1 and M2.
DC input connector	CN1: JST B3P-VH-B or equivalent. Pin 1 = DC−; pin 2 = NC; pin 3 = DC+. Mating housing: JST VHR or equivalent; contact: JST SVH-21T-P1.1 or equivalent.
DC output connector	CN2: JST B4P-VH-B or equivalent. Pins 1 and 2 = +V output; pins 3 and 4 = −V output. Mating housing: JST VHR or equivalent; contact: JST SVH-21T-P1.1 or equivalent.
Connector compatibility	The listed housing and contact references identify mating connection specifications; verify the supplied equivalent and connector pin numbering before wiring.
Packing and weight	150 g, catalog packing reference per unit; not a measured net-weight claim. Outer packing: 72 pieces, 10.8 kg, 0.82 CUFT.
General test conditions	Unless otherwise specified, the series parameters are measured at 12, 24 or 48 V DC input, rated load and 25°C ambient temperature. For PSD-30B-24, use only a test input within its specified 18–36 V DC input range.

Installation and system guidance

Installation safety and polarity	Disconnect the system supply before installation or maintenance and prevent inadvertent reconnection. Have faults examined by a qualified technician; do not attempt repairs yourself. Do not reverse input or output polarity. Avoid high moisture, water, fire sources and ambient temperatures beyond the model specification.
PCB clearance and ventilation	Keep at least 5 mm insulation distance around the PCB unit. Provide good ventilation and keep 10–15 cm clearance when an adjacent device is a heat source. Nonstandard mounting orientation or high ambient temperature may require output-current derating; use the model-specific mounting drawing and derating curves.
Conductor and connector selection	The installation guide recommends these wire columns: 18 AWG / 0.75 mm² for 6 A; 16 AWG / 1.00 mm² for 6–10 A; 14 AWG / 1.5 mm² for 10–16 A; 12 AWG / 2.5 mm² for 16–25 A; 10 AWG / 4 mm² for 25–32 A; and 8 AWG / 6 mm² for 32–40 A. These are paired guide entries, not exact unit conversions. When five or more wires connect to the unit, derate each listed wire-current recommendation to 80%. Select compatible mating housings and terminals from this model’s connector specification.
Rated loading and system inrush	Keep output current and power within the selected model’s ratings and applicable derating conditions. The system may require an additional inrush-current limiting circuit; consult MEAN WELL if the system requirement is uncertain.
System enclosure and grounding	Install this component converter inside the final system enclosure. The surrounding equipment enclosure must have flammability rating V1 or better. Identify the designated FG point from the markings on the supplied unit and confirm it with MEAN WELL if unclear; connect that point to protective earth.
Complete-system EMC verification	Recheck EMC with the converter installed in the final equipment and connected to a representative load. Wiring and assembly affect the result; the linked component EMI guidance does not certify the finished equipment.