Littelfuse MINISMDC050F-2 Key Specifications

1. General Characteristics

• Type: Resettable PTC Fuse (PPTC)

• Package: 1206 (3216 metric) SMD

• Mounting: Surface Mount (RoHS compliant)

• Operating Temperature Range: -40°C to +85°C

2. Electrical Ratings

• Hold Current (IH): 0.50 A (max. current under normal operation)

• Trip Current (IT): 1.00 A (minimum current to trigger "trip" state)

• Maximum Voltage (Vmax): 6.0 V DC

• Maximum Current (Imax): 40 A (fault withstand, 8/20μs pulse)

3. Trip Performance

• Time-to-Trip:

  • 0.20 A overload: Typically >100 sec

  • 1.00 A overload: Typically <1.0 sec

  • 3.50 A overload: Typically <0.10 sec

• Power Dissipation (PD): ≤1.0 W in tripped state

4. Resistance & Durability

• Initial Resistance (Rmin): ≤0.20 Ω (at 20°C)

• Max. Resistance After Trip (R1max): ≤0.80 Ω (after recovery)

• Cycle Life: 100+ trips (typical, with full recovery)

5. Applications

• USB ports, Li-ion battery packs

• Consumer electronics (smartphones, tablets)

• Automotive electronics (12V/5V systems)

• IoT/portable devices