12V 12A 150W SMPS Switching Power Supply

SKU: PH-SMPS-150-12

$63.34

● Supplies a robust 12V/12.5A/150W power stream, keeping your devices running reliably. ● 100% full-load burn-in testing ensures consistent performance and long-term durability. ● Adheres to strict EMC standards for interference-free, stable operation. ● Uses quiet natural convection cooling to maintain optimal temperatures without fans.

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Overview
Specs
Application
FAQ
Reviews

Overview

150W SMSP power supply reliably converts universal AC input to stable 12V DC output with a rated current of 12.5A. It features silent free-air convection cooling, plus full short-circuit, overvoltage, and overload protection for safe and stable operation. Built for exceptional durability and outstanding cost-effectiveness, this power supply is widely suitable for LED strips, computers, printers, televisions, radios, air compressors, automotive equipment, and many other devices, delivering consistent performance you can trust for both professional and daily use.

Feature

Robust All-round Protection: Built-in safeguards against short circuits, overvoltage, and overloads shield your devices from electrical risks.
Unbeatable Value: Rugged reliability at an accessible price delivers lasting value for every project.
Global Voltage Adaptability: A switch-selectable universal AC input ensures seamless operation across worldwide power grids.

Details

Input
Ground Wire
Output Negative Terminal
Output Positive Terminal
Voltage Regulation
Indicator Light

Dimension (Unit: mm)

12V DC 150W SMPS Power Supply Dimension

150W SMPS Terminal Pin Number Assignment

Specs

Model		PH-S-150-12
Output	DC Voltage	12V
	Rated Current	12.5A
	Current Range	0 ~ 12.5A
	Rated Power	150W
	Ripple & Noise (Max.)(Note 2)	180mVp-p
	Voltage Adjust Range	10.6 ~ 13.2V
	Voltage Tolerance (Note 3)	±1.0%
	Line Regulation	±0.3%
	Load Regulation	±0.3%
	Setup, Rise, Holdup Time	100ms, 50ms, 20ms at full load
Input	Voltage Range	88 ~ 132VAC/176V~264VAC (selected by a switch) or 248 ~ 370VDC
	Frequency Range	47~63Hz
	Efficiency (Typ.)	82%
	AC Current (Typ.)	3.2A/115V AC 1.6A/230V AC
	Inrush Current (Typ.)	Cold start: 35A
	Leakage Current	<3.5mA/240V AC
Protection	Overload	105~150% rated output power Protection type: Shut down output voltage, re-power on to recover.
Protection	Overvoltage	13.8V ~ 16.2V Protection type: Shut down output voltage, re-power on to recover.
Environment	Working Temperature	-10 ~ +60℃
	Working Humidity	20~90% RH non-condensing
	Storage Temperature	-20~+85℃
	Storage Humidity	10~95% RH non-condensing
	Temperature Coefficient	±0.03%/℃ (0~50℃)
	Vibration	10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
Safety & EMC (Note 4)	Safety Standards	UL1012 UL60950-1, TUV EN60950-1, CCC GB4943 Approved
	Withstand Voltage	I/P-O/P: 3KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
	Isolation Resistance	I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC/25℃/70% RH
	EMC Emission	Compliance to EN55022 (CISPR22) Class B, EN61000-3-2, -3
	EMC Immunity	Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024, light industry level, criteria A
Others	MTBF	≥286.7K hrs MIN. MIL-HDBK-217F (25℃)
	Dimension	19911050mm (LWH)
	Weight	0.8kg
Note	1. All parameters NOT specially mentioned are measured at 230V AC input, rated load and 25°C of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3. Tolerance includes set up tolerance, line regulation and load regulation. 4. The switching power supply is considered a component which will be installed into final equipment. Please make sure that the final equipment still meets EMC directives.

Application

Household Appliances

Factory Equipment

Monitoring Equipment

Power Tools

FAQ

Q1: How to deal with the blown fuse of switching power supply (smps)?

If the fuse of a switching power supply blows, it usually signals an internal circuit fault, often caused by grid voltage spikes or surges that lead to excessive current. First, inspect the input-side components such as rectifier diodes, high-voltage filter capacitors, and inverter switching tubes for breakdown, open circuits, or damage. Check the circuit board for burnt parts or electrolyte leakage; if none are visible, use a multimeter to test for short circuits or breakdowns. Even after replacing the damaged component, do not power on the unit immediately—make sure all high-voltage components on the board are fully checked and verified normal first to avoid damaging the new parts.

Q2: How to extend the service life of a switching power supply?

To extend the life of a switching power supply, install it in a well‑ventilated area away from dust, moisture, and high temperatures. Avoid overloading or running it at full power continuously. Use a stable power input and install it properly to reduce vibration. Keep the unit clean and ensure good heat dissipation. Operate within its rated voltage and load range, and avoid frequent switching on and off.

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From: Dario | Date: 9/9/2026 2:03 AM

Solid 12V 150W Power Supply

Stable 12V output with 12.5A capacity. The fanless design runs quietly, and the overload, overvoltage, and short-circuit protection are useful. Works well with my LED strips and DIY electronics.

12V 12A 150W SMPS Switching Power Supply

Feature

Details

Dimension (Unit: mm)

Household Appliances

Factory Equipment

Monitoring Equipment

Power Tools

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