5V 20A 100W SMPS Switching Power Supply

SKU: PH-SMPS-100-5

$58.15

● Features a steady 5V/20A/100W output to provide dependable power for your equipment. ● Free air convection cooling provides reliable heat dissipation without noise. ● Rigorous 100% full load burn-in test guarantees reliable long-term operation. ● Low cost and high reliability make it an economical and trustworthy solution.

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Overview
Specs
Application
FAQ
Reviews

Overview

5V switching mode power supply delivers 100W output with a 20A current rating, supporting universal input AC voltage via a manual selector switch to provide stable 5V DC power. Compact, cost-effective, and highly reliable, it is ideal for LED lighting, security cameras, communications gear, industrial control systems, and household electrical appliances. Affordable and built for long-term use, this power supply is ready for your various projects—order now and enjoy great value!

Feature

Wide Compatibility: Universal AC input with selectable range via switch for flexible global usage.
User-friendly Design: User-friendly design with simple operation and convenient installation for easy daily use.
Full Protection: Built-in short circuit and overload protection ensures safe and stable operation.
Sturdy Structure: Durable housing and robust internal materials ensure excellent strength and long service life.

Details

Input 220V: Compatible with standard 220V AC household and industrial power systems.
Ground Wire: Ensures safe electrical grounding to protect the unit and connected devices.
Output Negative Terminal: Dedicated connection point for negative DC power output.
Output Positive Terminal: Dedicated connection point for positive DC power output.
Voltage Regulation: Allows precise adjustment of output voltage for stable device operation.
Indicator Light: Provides instant visual confirmation of power-on status.

Dimension (Unit: mm)

5V 20A Switching Mode Power Supply Dimension

100W SMPS Terminal Pin Number Assignment

Specs

Model		PH-S-100-5
Output	DC Voltage	5V
	Rated Current	20A
	Current Range	0 ~ 20A
	Rated Power	100W
	Ripple & Noise (Max.)(Note 2)	100mVp-p
	Voltage Adjust Range	4.75 ~ 5.5V
	Voltage Tolerance (Note 3)	±2.0%
	Line Regulation	±0.5%
	Load Regulation	±0.5%
	Setup, Rise, Holdup Time	200ms, 80ms, 20ms at full load
Input	Voltage Range	85 ~ 132VAC/180V~264VAC (selected by a switch) or 255 ~ 370VDC
	Frequency Range	47~63Hz
	Efficiency (Typ.)	78%
	AC Current (Typ.)	2.4A/115V AC 1.2A/230V AC
	Inrush Current (Typ.)	Cold start: 30A/115V AC 60A/230V AC
	Leakage Current	<1mA/240V AC
Protection	Overload	105~150% rated output power 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 Approved
	Withstand Voltage	I/P-O/P: 1.5KVAC 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 FCC Part 15 J conduction Class B
Others	MTBF	≥322.4K hrs MIN. MIL-HDBK-217F (25℃)
	Dimension	1999838mm (LWH)
	Weight	0.63kg
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: What is switching power supply's working principles?

A switching power supply works by rapidly turning electronic switches on and off to convert input AC or DC voltage into high‑frequency pulses, which are then transformed, rectified, and filtered to produce a stable DC output; a feedback circuit continuously adjusts the switching duty cycle to maintain constant output voltage, making it highly efficient, compact, and widely used in electronic devices.

Q2: What are common applications of switching power supplies?

Switching power supplies are widely used in computers, laptops, mobile phone chargers, TVs, monitors, industrial equipment, LED lighting, automotive electronics, communication devices, medical instruments, and home appliances because they are efficient, compact, and able to provide stable voltage for various electronic products.

2 review(s)

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1 2 3 4 5

From: Brandon | Date: 8/5/2026 1:21 AM

Silent and Reliable – No Cord Included

Great power supply – runs cool and quiet. Minus one star for no power cord in the box.

From: Sophie | Date: 7/21/2026 1:44 AM

Quiet and Reliable – Exactly What My LED Project Needed

Picked this up to power a big LED lighting project in my workshop, and it's been running great. The best part is the fanless design – no annoying whirring noise, just silent power. Stays cool too, even after running all day. Hookup was straightforward with the screw terminals, and the built-in protection gives me peace of mind that my LEDs aren't gonna get fried. For the price, it's a solid little workhorse. Would buy again.

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