Axial Lead Wirewound Resistors EWWR
The EWWR series is an economical axial lead wirewound resistor designed for flexibility in circuit design. It offers a range of power options from 2W to 21W and resistance values from 1.2 to 9.3K, with a tightest tolerance of 5%. These resistors are capable of operating at high temperatures without damage, featuring excellent heat resistance for stable performance in demanding environments and long-term load applications. They are suitable for precision instrumentation, semiconductor testing, medical equipment, and capacitor charging/discharging applications.
Product Attributes
- Brand: C&B Electronics (Resi)
- Origin: Shenzhen, China
Technical Specifications
| Series | Rated Power | Resistance Range | Tolerance | TCR | Insulation Voltage | Dimensions (L x l x D) | Termination | MOQ | Packaging |
|---|---|---|---|---|---|---|---|---|---|
| EWWR1112 | 2W | 1.2R621 | 5% | 160ppm/ | 1000V | 22.12.1 x 183.1 x 5.61.6 | Axial lead | 6000pcs | Bulk |
| EWWR1114 | 4W | 1.2R621 | 5% | 160ppm/ | 1000V | 26.12.1 x 183.1 x 6.61.6 | Axial lead | 6000pcs | Bulk |
| EWWR1117 | 7W | 1.2R6.7K | 5% | 160ppm/ | 1000V | 34.62.1 x 183.1 x 9.12.1 | Axial lead | 2300pcs | Bulk |
| EWWR1119 | 9W | 2R9.3K | 5% | 160ppm/ | 1000V | 42.62.1 x 183.1 x 8.12.1 | Axial lead | 2300pcs | Bulk |
| EWWR1121 | 21W | 2R9.3K | 5% | 160ppm/ | 1000V | 47.62.1 x 183.1 x 8.12.1 | Axial lead | 2100pcs | Bulk |
Performance Test Standards
| Test | Standard | Test Limits |
|---|---|---|
| Short Time Overload | IEC 60115-1 4.13 | R(2.1%+1.16), 2 times rated power, 5s |
| Moisture Resistance | IEC 60115-1 4.15 | R(6.1%+1.2) |
| Load Life | IEC 60115-1 4.16.2 | R(6.1%+1.2) |
| Terminal Strength | IEC 60115-1 4.27 | R(2.1%+1.16), No visible damage |
| Resistance to Solder Heat | IEC 60115-1 4.19 | R(2.1%+1.16), No visible damage |
| Thermal Shock | IEC 60115-1 4.20 | R(2.1%+1.16), No visible damage |
| Withstand Voltage | IEC 60115-1 4.8 | No breakdown or flashover |
| Vibration | MIL-STD-202 Method 213 | R(2.1%+1.16), No visible damage |
| Solderability | IEC 60115-1 4.28 | 75% minimum coverage |
Part Number Information Example
EWWR9J2K11T (EWWR 9W 5% 2K 160ppm/ Standard)
Construction
Insulated Coating, Ceramic Rod, Lead Wire, End Cap, Resistive Wire, Color Ring
2504101957_RESI-EWWR0003J12R0T9_C348852.pdf
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