SMD0603 Series PPTC Resettable Fuse | Ultra-Compact Surface Mount Overcurrent Protection for Portable & Interface Circuits
The SMD0603 Series is a surface-mount PPTC resettable fuse designed for space-constrained overcurrent protection. Utilizing 0603 (1608 metric) ultra-compact packaging, these fuses rapidly switch to a high-resistance state when overcurrent occurs, effectively limiting current flow. After the fault is cleared and the device cools, it automatically resets. With hold current ratings from 50mA to 500mA, this series is ideal for USB lines, HDMI ports, I²C buses, TWS earbuds, wearables, touch panels, and consumer PCB protection.
| JRPart Number | Hold Current |
Trip Current | Rated Voltage | Max Current |
Typical Power |
Maximum Time To Trip | Resistance | Size | ||
| I hold (A) | I trip (A) | V max (Vdc) | I max (A) | P dtyp. (W) | Current (A) | Time (Sec.) | R min (Ω) | R 1max (Ω) | ||
| JR001-0603RB | 0.01 | 0.03 | 30 | 20 | 0.5 | 0.2 | 1 | 15 | 100 | 603 |
| JR002-0603RB | 0.02 | 0.06 | 30 | 20 | 0.5 | 0.2 | 1 | 12 | 70 | 603 |
| JR003-0603RB | 0.03 | 0.09 | 30 | 20 | 0.5 | 0.15 | 1 | 6 | 65 | 603 |
| JR004-0603RB | 0.04 | 0.12 | 24 | 20 | 0.5 | 0.2 | 1 | 4 | 45 | 603 |
| JR005-0603RB | 0.05 | 0.15 | 24 | 20 | 0.5 | 0.25 | 1 | 3 | 35 | 603 |
| JR010-0603RB | 0.1 | 0.3 | 15 | 40 | 0.5 | 0.5 | 1 | 0.9 | 8 | 603 |
| JR020-0603RB | 0.2 | 0.5 | 9 | 40 | 0.5 | 1 | 0.6 | 0.55 | 3.5 | 603 |
| JR025-0603RB | 0.25 | 0.55 | 9 | 40 | 0.5 | 8 | 0.08 | 0.5 | 3 | 603 |
| JR030-0603RB | 0.3 | 0.7 | 6 | 40 | 0.5 | 8 | 0.1 | 0.3 | 2 | 603 |
| JR035-0603RB | 0.35 | 0.75 | 6 | 40 | 0.5 | 8 | 0.1 | 0.2 | 1.4 | 603 |
| JR040-0603RB | 0.4 | 0.8 | 6 | 40 | 0.5 | 8 | 0.1 | 0.15 | 0.9 | 603 |
| JR050-0603RB | 0.5 | 1 | 6 | 40 | 0.5 | 8 | 0.1 | 0.1 | 0.8 | 603 |
| JRPart Number | Hold Current |
Trip Current | Rated Voltage | Max Current |
Typical Power |
Maximum Time To Trip | Resistance | Size | ||
| I hold (A) | I trip (A) | V max (Vdc) | I max (A) | P dtyp. (W) | Current (A) | Time (Sec.) | R min (Ω) | R 1max (Ω) | ||
| JR050-0603RZB | 0.5 | 1 | 6 | 50 | 0.5 | 8 | 0.6 | 0.07 | 0.4 | 603 |
| JR075-0603RZB | 0.75 | 1.5 | 6 | 50 | 0.5 | 8 | 1 | 0.055 | 0.25 | 603 |
| JR100-0603RZB | 1 | 2 | 6 | 50 | 0.5 | 8 | 2 | 0.045 | 0.12 | 603 |
| JR125-0603RZB | 1.25 | 2.5 | 6 | 50 | 0.5 | 8 | 3 | 0.035 | 0.1 | 603 |
| JR150-0603RZB | 1.5 | 3 | 6 | 50 | 0.5 | 8 | 4 | 0.012 | 0.08 | 603 |
| JR175-0603RZB | 1.75 | 3.5 | 6 | 50 | 0.5 | 8 | 5 | 0.012 | 0.07 | 603 |
| JR200-0603RZB | 2 | 4 | 6 | 50 | 0.5 | 8 | 5 | 0.012 | 0.06 | 603 |
| JR260-0603RZB | 2.6 | 5.2 | 6 | 50 | 0.5 | 8 | 5 | 0.008 | 0.05 | 603 |
| JR300-0603RZB | 3 | 6 | 6 | 50 | 0.5 | 8 | 5 | 0.008 | 0.04 | 603 |
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