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| Part Number | ERA-1ARB2490C | ERA-1ARB5490C | ERA-1ARB2491C | ERA-1ARB2430C | 
|---|---|---|---|---|
| Manufacturer | Panasonic Electronic Components | Panasonic Electronic Components | Panasonic Electronic Components | Panasonic Electronic Components | 
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | 
| Resistance | 249 Ohms | 549 Ohms | 2.49 kOhms | 243 Ohms | 
| Tolerance | ±0.1% | ±0.1% | ±0.1% | ±0.1% | 
| Power (Watts) | 0.05W, 1/20W | 0.05W, 1/20W | 0.05W, 1/20W | 0.05W, 1/20W | 
| Composition | Thin Film | Thin Film | Thin Film | Thin Film | 
| Features | - | - | - | - | 
| Temperature Coefficient | ±10ppm/°C | ±10ppm/°C | ±10ppm/°C | ±10ppm/°C | 
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | 
| Package / Case | 0201 (0603 Metric) | 0201 (0603 Metric) | 0201 (0603 Metric) | 0201 (0603 Metric) | 
| Supplier Device Package | 0201 | 0201 | 0201 | 0201 | 
| Ratings | - | - | - | - | 
| Size / Dimension | 0.024" L x 0.012" W (0.60mm x 0.30mm) | 0.024" L x 0.012" W (0.60mm x 0.30mm) | 0.024" L x 0.012" W (0.60mm x 0.30mm) | 0.024" L x 0.012" W (0.60mm x 0.30mm) | 
| Height - Seated (Max) | 0.010" (0.26mm) | 0.010" (0.26mm) | 0.010" (0.26mm) | 0.010" (0.26mm) | 
| Number of Terminations | 2 | 2 | 2 | 2 | 
| Failure Rate | - | - | - | - |