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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PTC Thermistors-Over Current Protection

PTC thermistors for over-current protection, often referred to as resettable fuses or PPTCs, are critical safety components designed to protect electronic circuits from excessive current. These devices exhibit a positive temperature coefficient, meaning their electrical resistance increases significantly as the temperature rises. When a fault condition occurs and current exceeds a specific threshold, the device heats up and limits the current flow, preventing damage to sensitive downstream components. They are commonly utilized in power supplies, automotive electronics, and consumer appliances. When selecting a PTC thermistor for over-current protection, several key parameters must be considered to ensure circuit stability. Primary considerations include the holding current, which is the maximum current the device can carry without tripping, and the trip current, which is the minimum current required to trigger the resistance increase. Additionally, the maximum voltage rating and the resistance value at room temperature are essential factors for proper integration. These specifications ensure the component reacts appropriately to fault conditions while maintaining normal operation. Centenary Materials offers in-stock supply, fast quotation and sourcing service for parts not currently listed.
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