8/14/2026 7:27:26 AM   By  Symond  in


Introduction

The Resettable Fuses - PPTC 1206L035/30WR by Littelfuse are designed to provide resettable overcurrent protection for electronic circuits and PCB assemblies. Using Positive Temperature Coefficient technology, these devices help limit excessive current during fault conditions and can recover toward their normal operating state after the fault is removed.

As part of Circuit Protection, Thermistors, and Resettable Fuses - PPTC, the 1206L035/30WR Resettable Fuses - PPTC are suitable for compact electronic designs where reliable and reusable overcurrent protection is required.


Technical Specifications of 1206L035/30WR Resettable Fuses - PPTC

General Specifications

  • Manufacturer: Littelfuse

  • Part Number: 1206L035/30WR

  • Product Type: Resettable Fuse

  • Technology: PPTC (Polymeric Positive Temperature Coefficient)

  • Mounting Style: Surface Mount

  • Product Category: Circuit Protection

  • Product Family: Thermistors

  • Subcategory: Resettable Fuses - PPTC

  • Application: Electronic circuit overcurrent protection

  • Package Format: Compact surface-mount design

The 1206L035/30WR Resettable Fuses - PPTC are designed for applications where a resettable protective component can help safeguard electronic circuitry from excessive current. Their compact construction makes them suitable for PCB applications involving Circuit Protection, Thermistors, and Resettable Fuses - PPTC.


Key Features of 1206L035/30WR Resettable Fuses - PPTC

Design and Performance Benefits

  • Resettable protection against overcurrent conditions.

  • PPTC technology supports reusable circuit protection.

  • Compact surface-mount construction.

  • Suitable for space-constrained PCB designs.

  • Helps protect sensitive electronic circuitry.

  • Can reduce the need for frequent replacement after a fault.

  • Suitable for a wide range of electronic equipment.

  • Manufactured by Littelfuse for circuit protection applications.

The 1206L035/30WR Resettable Fuses - PPTC provide a practical solution for electronic designs requiring dependable Circuit Protection, Thermistors, and Resettable Fuses - PPTC.


Applications of 1206L035/30WR Resettable Fuses - PPTC

Common Use Cases

  • Consumer electronics

  • Computer and peripheral equipment

  • Telecommunications equipment

  • Industrial electronic systems

  • Power supply circuits

  • Battery-powered equipment

  • Control boards

  • Embedded electronic systems

  • Portable electronic devices

  • PCB-based electronic equipment

The 1206L035/30WR Resettable Fuses - PPTC can be incorporated into electronic systems where Circuit Protection, Thermistors, and Resettable Fuses - PPTC are required to help protect circuits against excessive current.


How PPTC Resettable Fuses Work

Protection Principle

Under normal operating conditions, a PPTC resettable fuse has relatively low resistance and allows the circuit to operate normally. When excessive current flows, the component heats up and its resistance increases significantly, helping limit the current passing through the protected circuit.

Once the excessive-current condition is removed and the component cools, its resistance can return toward its normal operating condition. This resettable characteristic makes the 1206L035/30WR Resettable Fuses - PPTC useful for applications where repeated fault events may occur.


Installation and PCB Design Overview

Installation Guidelines

  • Verify the component specifications against the circuit requirements.

  • Confirm the recommended PCB footprint before placement.

  • Follow the manufacturer's recommended soldering conditions.

  • Ensure the component is correctly positioned on the PCB.

  • Keep the normal operating current within the specified limits.

  • Consider temperature and fault conditions during component selection.

  • Test the completed circuit after assembly.

Correct component selection and installation are important for achieving reliable performance from the 1206L035/30WR Resettable Fuses - PPTC.


Use Case Example: Compact Electronic Control Board

Practical Implementation

Application: Compact electronic control equipment.

Challenge: Protecting sensitive PCB circuitry against excessive current while using a compact protection component.

Solution: Engineers can use the 1206L035/30WR Resettable Fuses - PPTC by Littelfuse as part of the circuit protection design.

Result: The surface-mount construction allows resettable overcurrent protection to be incorporated into compact electronic assemblies.

This example demonstrates how the 1206L035/30WR Resettable Fuses - PPTC can support electronic systems requiring Circuit Protection, Thermistors, and Resettable Fuses - PPTC.


Datasheet Information

For complete electrical ratings, resistance characteristics, trip characteristics, maximum voltage, maximum current, temperature derating, dimensions, PCB footprint, and soldering requirements, refer to the official Littelfuse product documentation before selecting the component for a specific application.


Why Buy 1206L035/30WR Resettable Fuses - PPTC from X-On Electronics?

Purchasing 1206L035/30WR Resettable Fuses - PPTC by Littelfuse from X-On Electronics provides several advantages:

  • Genuine Littelfuse products

  • Competitive pricing

  • Bulk purchasing options

  • Global sourcing support

  • Worldwide shipping

  • Professional customer support

  • Reliable sourcing for electronic circuit protection requirements

Choose X-On Electronics for genuine Circuit Protection, Thermistors, and Resettable Fuses - PPTC products backed by dependable global service.


FAQs – 1206L035/30WR Resettable Fuses - PPTC

What is the 1206L035/30WR used for?

The 1206L035/30WR Resettable Fuses - PPTC are designed to provide resettable overcurrent protection for electronic circuits and PCB assemblies.

Who manufactures the 1206L035/30WR?

The 1206L035/30WR is manufactured by Littelfuse.

What does PPTC mean?

PPTC stands for Polymeric Positive Temperature Coefficient. PPTC devices increase resistance when excessive current causes the component to heat, helping limit current through the protected circuit.

Are PPTC resettable fuses reusable?

Yes. PPTC devices are designed to return toward their normal low-resistance state after the fault condition is removed and the component cools.

Where can I buy genuine 1206L035/30WR Resettable Fuses - PPTC?

You can purchase genuine 1206L035/30WR Resettable Fuses - PPTC from X-On Electronics with worldwide shipping and customer support.


Conclusion

The 1206L035/30WR Resettable Fuses - PPTC by Littelfuse provide a compact solution for resettable overcurrent protection in electronic circuits. Their PPTC technology makes them suitable for PCB designs where protection against excessive current and recovery after a fault are important.

As an important product within Circuit Protection, Thermistors, and Resettable Fuses - PPTC, the 1206L035/30WR Resettable Fuses - PPTC can be considered for consumer electronics, industrial equipment, telecommunications systems, control boards, and other electronic applications. Purchase genuine Littelfuse products from X-On Electronics for competitive pricing, reliable sourcing, and worldwide delivery.


Copyright ©2026  X-ON Electronic Services. All rights reserved.