# 0603L050YR (Component) ## Description Polymeric PTC Resettable Fuse 6V 500 mA Ih Surface Mount 0603 (1608 Metric), Concave The 0603L050YR is a surface-mount resettable fuse (PPTC – Polymer Positive Temperature Coefficient) designed to provide overcurrent protection in low-voltage electronic circuits. Housed in a compact 0603 package, this device automatically increases its resistance when excessive current flows, thereby limiting fault current and protecting downstream components. Once the fault condition is removed and power is cycled or reduced, the device resets to its original low-resistance state. Key Features Resettable overcurrent protection (PPTC technology) Compact 0603 surface-mount package Fast trip response to fault conditions Automatic recovery after fault removal Low resistance in normal operating state RoHS compliant and halogen-free Electrical Characteristics Hold Current (I_hold): 500 mA Trip Current (I_trip): ~1 A Maximum Voltage: 6 V Maximum Current: 40 A (short duration fault) Initial Resistance (R_min / R_max): Low resistance range typical for 0603 PPTC devices Thermal Characteristics Operating Temperature Range: -40°C to +85°C Trip Time: Dependent on fault current and ambient temperature Thermal cycling endurance suitable for standard SMT processes Mechanical Characteristics Package: 0603 (1608 Metric) Mounting Type: Surface Mount (SMD/SMT) Termination: Nickel barrier with matte tin plating Weight: Ultra-light, suitable for high-density PCB layouts Applications USB ports and peripherals Battery-powered devices Consumer electronics Power supply protection Embedded systems and IoT devices Compliance and Standards RoHS compliant Lead-free construction Meets industry standards for resettable fuses (PPTC devices) #commonpartslibrary #circuitprotection #ptc #fuse ## Component Details - **Owner:** lcsc - **Created:** 11/5/2024 - **Last Updated:** 4/28/2026 - **Visibility:** Public - **Manufacturer Part Number:** 0603L050YR - **Datasheet URL:** https://www.littelfuse.com/assetdocs/resettable-ptcs-0603l-datasheet?assetguid=879563f9-97a7-4e71-adba-37de085b333f - **Manufacturer Name:** Littelfuse Inc. - **Product Info Url:** https://lcsc.com/product-detail/Surface-Mount-Fuses_Littelfuse_0603L050YR_Littelfuse-0603L050YR_C207015.html - **Part Type:** Resettable Fuses - **LCSC Part Number:** C207015 - **JLCPCB Part Class:** Extended Part - **Package or Case Code:** F0603 - **License:** https://creativecommons.org/licenses/by/4.0/ - **Used in:** 3 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/0603l050yr/littelfuse.html?utm_currency=USD&region=nac) | $0.8108 | 675 | | [Digi-Key](https://www.digikey.com/en/products/detail/littelfuse-inc/0603L050YR/2764996) | N/A | N/A | | [LCSC](https://www.lcsc.com/product-detail/C207015.html) | N/A | N/A | | [Mouser](https://www.mouser.com/ProductDetail/Littelfuse/0603L050YR?qs=B4sXYbYweUo1w57JmM2jJQ%3D%3D) | $0.97 | 6.5K | | [Verical](https://www.verical.com/pd/littelfuse-ptc-resettable-fuse-0603L050YR-756046) | N/A | N/A | - **Part Type:** Circuit Protection Devices - **Manufacturer:** Littelfuse - **MPN:** 0603L050YR - **Mount Type:** Surface Mount - **Package / Case Code:** 6-R - **Pin Count:** 2 - **Compliance:** Rohs, Halogen Free, Lead Free ## Pins | Pin | Name | Type | |-----|------|------| | 1 | 1 | | | 2 | 2 | | --- *Generated from [https://www.flux.ai/lcsc/0603l050yr~ua87](https://www.flux.ai/lcsc/0603l050yr~ua87)*