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WT1206-050/24 PPTC Resettable Fuse 1206 Package

SKU: 3D5LKXKNPV
The WT1206-050/24 PPTC Resettable Fuse is a compact surface-mount circuit protection device designed to safeguard electronic equipment from overcurrent and short-circuit conditions. Rated for a maximum operating voltage of 24V and a hold current of 500mA, it provides reliable and reusable protection for a wide range of electronic applications. This device utilizes Polymeric Positive Temperature Coefficient (PPTC) technology, which allows...
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Specifications

Specifications:

Part Number: WT1206-050/24
Device Type: PPTC Resettable Fuse (Polymeric Positive Temperature Coefficient)
Package Size: 1206 SMD (3.2mm × 1.6mm)
Hold Current (Ihold): 500mA
Trip Current (Itrip): Typically 1A
Maximum Operating Voltage: 24V DC
Maximum Fault Current: As specified by manufacturer
Initial Resistance: Low resistance under normal operating conditions
Resettable: Yes, automatically resets after fault removal and cooling
Mounting Type: Surface Mount Device (SMD)
Operating Temperature Range: -40°C to +85°C (typical)

Additional Resources

Resettable Fuse – 24V 500mA – 1206.PDF

FAQ

1. What is the WT1206-050/24 PPTC Resettable Fuse?

The WT1206-050/24 is a PPTC (Polymeric Positive Temperature Coefficient) resettable fuse designed to protect electronic circuits from overcurrent conditions. It features a 500mA hold current, 24V maximum operating voltage, and comes in a compact 1206 SMD package.

2. How does the WT1206-050/24 resettable fuse work?

Under normal operating conditions, the fuse exhibits low resistance. When excessive current flows through the device, its resistance increases dramatically, limiting current and protecting the circuit. Once the fault is removed and the device cools down, it automatically resets to its normal state.

3. What are the typical applications of the WT1206-050/24 PPTC fuse?

This resettable fuse is commonly used in USB devices, battery-powered equipment, power supplies, communication systems, consumer electronics, and embedded circuits requiring overcurrent protection.

4. What does the 500mA rating indicate?

The 500mA rating refers to the hold current, which is the maximum continuous current the fuse can carry under normal conditions without tripping. Currents above this level may cause the device to enter its protective high-resistance state.

5. What are the advantages of using a PPTC resettable fuse instead of a traditional fuse?

Unlike conventional fuses that must be replaced after operation, a PPTC resettable fuse automatically recovers once the fault condition is removed. This reduces maintenance costs, improves reliability, and provides reusable circuit protection.

View full product details

The WT1206-050/24 PPTC Resettable Fuse is a compact surface-mount circuit protection device designed to safeguard electronic equipment from overcurrent and short-circuit conditions. Rated for a maximum operating voltage of 24V and a hold current of 500mA, it provides reliable and reusable protection for a wide range of electronic applications.

This device utilizes Polymeric Positive Temperature Coefficient (PPTC) technology, which allows it to automatically transition from a low-resistance state to a high-resistance state when excessive current flows through the circuit. By limiting the current during fault conditions, the fuse helps prevent damage to sensitive electronic components. Once the fault is removed and the device cools down, it automatically resets and returns to normal operation without requiring replacement.

Housed in a standard 1206 surface-mount package, the WT1206-050/24 is ideal for compact PCB designs where space is limited. Its small footprint, combined with reliable overcurrent protection, makes it suitable for use in USB-powered devices, battery-operated equipment, power supplies, communication systems, consumer electronics, and embedded control circuits.

The resettable nature of the fuse reduces maintenance costs and improves product reliability compared to traditional one-time-use fuses. Its fast response to fault conditions and long operational life make it an effective solution for protecting modern electronic systems from accidental overloads and short circuits.