Service Hours: Monday to Friday,Saturday: Guangfu Road branch only, Closed on Sundays and public holidays. For specific hours, please see details for each branch.
All marked prices are tax-inclusive and in TWD. Free shipping for purchases over 1200 (mainland Taiwan).
Language: English Centenary Materials Co., Ltd.
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Categories Centenary Materials Co., Ltd.
02 Batteries & Chargers & Spot Weldings Centenary Materials Co., Ltd.
03 Cables / Wires & Accessories Centenary Materials Co., Ltd.
05 Capacitors Centenary Materials Co., Ltd.
06 Computer Accessories Centenary Materials Co., Ltd.
07 Cable Assembly Centenary Materials Co., Ltd.
09 RF Cable & RF Antenna & Coaxial Connectors & Tools Centenary Materials Co., Ltd.
10 Multipole-Connectors & Tools Centenary Materials Co., Ltd.
11 Terminals, Test Leads & Spring Probes Centenary Materials Co., Ltd.
13 Circular & Rectangular Heavy-Duty Industrial Connectors Centenary Materials Co., Ltd.
18 Fuses & Circuit Protections Centenary Materials Co., Ltd.
21 Lighting, Lamps & Torches Centenary Materials Co., Ltd.
23 Optoelectronics & Indicators Centenary Materials Co., Ltd.
27 Power Supplies & UPS Centenary Materials Co., Ltd.
29 Relays & Solenoids Centenary Materials Co., Ltd.
30 Resistors & Potentiometers Centenary Materials Co., Ltd.
31 Discretes, TVS, Traics, SCRs & Diacs Centenary Materials Co., Ltd.
47 Soldering & Desoldering Centenary Materials Co., Ltd.
49 Inductors & Filters Centenary Materials Co., Ltd.
50 Switches & Control Gear Centenary Materials Co., Ltd.
52 Timers, Counters & Hour Meters Centenary Materials Co., Ltd.
54 MPU Programmers & Development Tools Centenary Materials Co., Ltd.
57 Logic Analysis, EPROM Programmers & IC Test Sockets Centenary Materials Co., Ltd.
58 Multimeters & Panel Meters Centenary Materials Co., Ltd.
59 Oscilloscopes, Signal Generators & Frequency Counter Centenary Materials Co., Ltd.
62 Lubricants & Greases Centenary Materials Co., Ltd.
66 Fasteners, Fixings & Snap Rivets Centenary Materials Co., Ltd.
68 Hand Tools & Kits Centenary Materials Co., Ltd.
76 Enclosures, Storage & Tool Cases Centenary Materials Co., Ltd.
80 New Products Centenary Materials Co., Ltd.
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3-40W Single Output Switching Power Supply

The 3-40W Single Output Switching Power Supply category consists of compact AC-DC converters designed to provide a stable, regulated DC voltage from a single output rail. These power supplies are commonly utilized in small-scale industrial automation, embedded systems, IoT devices, and consumer electronics where space is limited and power requirements are modest. By converting alternating current to a precise direct current, these units ensure reliable operation for sensors, controllers, and small peripheral modules. When selecting a switching power supply within this power range, key considerations include the output voltage level, maximum current capacity, and physical form factor. Users should evaluate the required wattage to ensure sufficient overhead for the load and check for specific certifications or protection features, such as short-circuit or over-voltage protection, to maintain system stability. Efficiency ratings and thermal management capabilities are also important factors depending on the enclosure environment. Centenary Materials offers in-stock supply, fast quotation and sourcing service for parts not currently listed.
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