50Pcs PPTC Resettable SMD 0603 Fuse – 10mA to 1A, 30V/60V
50Pcs PPTC Resettable SMD 0603 Fuse – 10mA to 1A, 30V/60V
50-Pack PPTC Resettable SMD 0603 Patch Fuses
Protect your electronics with confidence using these PPTC (Polymeric Positive Temperature Coefficient) resettable SMD fuses in the compact 0603 form factor. Unlike traditional one-time fuses, PPTC fuses automatically reset after the fault condition is removed, saving you time and components. This pack of 50 pieces covers a wide range of current ratings, making it an ideal stock for engineers, hobbyists, and repair technicians alike.
Key Specifications
- Package Size: SMD 0603
- Current Ratings Available: 10mA, 20mA, 30mA, 40mA, 50mA, 100mA (0.1A), 200mA (0.2A), 250mA, 300mA, 350mA, 400mA (0.4A), 500mA (0.5A), 600mA (0.6A), 650mA, 750mA, 1A
- Voltage Ratings: 30V / 60V
- Type: Resettable PPTC (self-resetting)
- Safety Standards: Meets international safety standards
- Quantity: 50 pieces per pack
- Country of Origin: Made in Mainland China
Why Choose PPTC Resettable Fuses?
- 🔁 Self-Resetting: Automatically resets once the overcurrent fault clears — no need to replace the fuse each time
- 📦 Compact SMD 0603 Form Factor: Fits seamlessly into space-constrained PCB layouts
- ⚡ Wide Current Range: Covers 10mA all the way up to 1A for versatile circuit protection across many applications
- 🔒 Overcurrent & Thermal Protection: Trips under excessive current or heat, safeguarding sensitive components
- 🛠️ Bulk Pack of 50: Ideal for prototyping, production runs, or keeping a well-stocked workshop
- ✅ International Standard Compliant: Meets recognized global safety and performance standards
Ideal Applications
- USB port and power line protection
- Battery pack and charger circuits
- Consumer electronics and IoT devices
- Motor driver and sensor protection
- Arduino, Raspberry Pi, and DIY electronics projects
- PCB design and prototyping
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Frequently Asked Questions
Q: What does PPTC mean and how does a resettable SMD fuse work?
A: PPTC stands for Polymeric Positive Temperature Coefficient. When current through the fuse exceeds its rated threshold, the polymer material heats up and its resistance increases dramatically, effectively blocking excessive current flow. Once the overcurrent condition is removed and the device cools down, the fuse resets to its low-resistance state automatically — ready to protect your circuit again without any replacement needed.
Q: What current and voltage ratings are included in the 50-piece pack?
A: This pack includes the SMD 0603 PPTC fuses in the following ratings: 10mA, 20mA, 30mA, 40mA, 50mA, 100mA (0.1A), 200mA (0.2A), 250mA, 300mA, 350mA, 400mA (0.4A), 500mA (0.5A), 600mA (0.6A), 650mA, 750mA, and 1A, at voltage ratings of 30V and 60V. This wide selection makes the pack suitable for a broad range of circuit protection applications.
Q: Are these fuses compatible with standard SMD 0603 PCB footprints?
A: Yes. These PPTC patch fuses use the industry-standard 0603 SMD footprint (1.6mm × 0.8mm), making them fully compatible with standard PCB landing patterns used in most surface-mount designs. They can be soldered using standard SMD reflow or hand-soldering techniques.
Q: Are these PPTC fuses suitable for USB protection circuits?
A: Absolutely. PPTC resettable fuses are widely used in USB power and data lines to protect against overcurrent conditions. With ratings as low as 10mA and up to 1A at 30V/60V, these 0603 SMD fuses are well-suited for USB, charging, and low-voltage protection circuits in consumer electronics and DIY projects.