SMD2920RB Series PPTC Resettable Fuse | High-Power Surface Mount Polyfuse for Energy Storage & Industrial Circuits
The SMD2920RB Series is a high-power, high-current resettable fuse with a 2920 (7351 metric) surface mount package. Designed for high-energy applications, it offers hold currents ranging from 3A to 5A and voltage ratings up to 60V. These devices respond rapidly during overcurrent events, transition to a high-resistance state to limit current, and reset automatically after cooling. With excellent thermal stability and low leakage current, the SMD2920RB is widely used in battery protection circuits for energy storage systems, industrial power interfaces, motor controllers, PoE systems, and EV electronics.
| 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) | ||
| JR030-2920RB | 0.3 | 0.6 | 60 | 100 | 1.5 | 1.5 | 3 | 0.6 | 4.8 | 2920 |
| JR050-2920RB | 0.5 | 1 | 60 | 100 | 1.5 | 2.5 | 4 | 0.18 | 1.4 | 2920 |
| JR075-2920RB | 0.75 | 1.5 | 33 | 100 | 1.5 | 8 | 0.3 | 0.1 | 1 | 2920 |
| JR075-60-2920RB | 0.75 | 1.5 | 60 | 40 | 1.5 | 8 | 0.3 | 0.1 | 1 | 2920 |
| JR100-2920RB | 1 | 2.2 | 33 | 100 | 1.5 | 8 | 0.5 | 0.065 | 0.41 | 2920 |
| JR125-2920RB | 1.25 | 2.5 | 33 | 100 | 1.5 | 8 | 2 | 0.05 | 0.25 | 2920 |
| JR150-2920RB | 1.5 | 3 | 33 | 100 | 1.5 | 8 | 2 | 0.035 | 0.23 | 2920 |
| JR185-2920RB | 1.85 | 3.7 | 33 | 100 | 1.5 | 8 | 2.5 | 0.03 | 0.15 | 2920 |
| JR200-2920RB | 2 | 4 | 16 | 100 | 1.5 | 8 | 4.5 | 0.02 | 0.12 | 2920 |
| JR200-24-2920RB | 2 | 4 | 24 | 100 | 1.5 | 8 | 4.5 | 0.02 | 0.12 | 2920 |
| JR250-2920RB | 2.5 | 5 | 16 | 100 | 1.5 | 8 | 16 | 0.02 | 0.085 | 2920 |
| JR260-2920RB | 2.6 | 5.2 | 16 | 100 | 1.5 | 8 | 10 | 0.014 | 0.075 | 2920 |
| JR300-2920RB | 3 | 6 | 6 | 100 | 1.5 | 8 | 20 | 0.012 | 0.048 | 2920 |
| JR300-16-2920RB | 3 | 6 | 16 | 100 | 1.5 | 8 | 20 | 0.012 | 0.048 | 2920 |
| JR400-16-2920RB | 4 | 8 | 16 | 40 | 1.5 | 20 | 4 | 0.008 | 0.04 | 2920 |
| JR500-16-2920RB | 5 | 10 | 16 | 40 | 1.5 | 25 | 5 | 0.005 | 0.031 | 2920 |
| JR600-12-2920RB | 6 | 12 | 12 | 40 | 1.5 | 25 | 6 | 0.004 | 0.02 | 2920 |
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