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 applications requiring long-term loads. They are suitable for precision instrumentation, semiconductor testing, medical equipment, and capacitor charging/discharging applications.
Product Attributes
- Brand: C&B Electronics Shenzhen CO., LTD.
- Origin: Shenzhen
- Website: www.resistor.today
- Email: resi@cbeureka.com
- Tel: 86-755-89390062
Technical Specifications
| Series | Rated Power | Resistance Range | Tolerance | TCR | Insulation Voltage | Dimensions (L x l x D) | Termination | MOQ | Packaging |
| 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 |
| EWWR1112 | 2W | 1.2R621 | 5% | 160ppm/ | 1000V | 22.12.1 x 183.1 x 5.61.6 | Axial lead | 6000pcs | 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 Method | Standards | Test Limits |
| Short Time Overload | IEC 60115-1 4.13 | R(2.1%+1.06); 2 times rated power, 5s |
| Moisture Resistance | IEC 60115-1 4.15 | R(6.1%+1.2); 40C3C, 90%-95%RH, 1.2 times rated voltage, 2112h+8/-1h |
| Load Life | IEC 60115-1 4.16.2 | R(6.1%+1.2); 2112h+/-8h @ room temperature, rated voltage AC, 2.6h on, 1.4h off |
| Terminal Strength | IEC 60115-1 4.27 | Tensile: 20N, 40s, Bending: 6N, 3 cycles, Torsion: 6 cycles; R(2.1%+1.06); No visible damage |
| Resistance to Solder Heat | IEC 60115-1 4.19 | R(2.1%+1.06); No visible damage; +260C5C tin bath for 2s+/-0.5s |
| Thermal Shock | IEC 60115-1 4.20 | R(2.1%+1.06); No visible damage; -65C+/-5C, 40min~room temp, 3~4min~+125C+/-5C, 40min~room temp, 3~4min, 6 cycles |
| Withstand Voltage | IEC 60115-1 4.8 | No breakdown or flashover; Apply a DC voltage of 1000V between the electrode and the substrate for 60s |
| Vibration | MIL-STD-202 Method 215 | R(2.1%+1.06); No visible damage; 20~2000~20Hz/min, Amplitude 1.5mm, 1h in each directions of X Y Z |
| Solderability | IEC 60115-1 4.28 | 60% minimum coverage; +230C+/-5C tin bath for 3s+/-1s, immerse 4mm. |
Part Number Information
Example: EWWR1119J2K100T (EWWR, 9W, 5%, 2K, 160ppm/, Standard)
Series: EWWR
Power Code: 1112=2W, 1114=4W, 1117=7W, 1119=9W, 1121=21W
Tolerance: J=5%
Resistance: R12=1.2, 2R12=2, 21R1=21, 211R=211, 2K12=2K, 9K31=9.3K
TCR: T=160ppm/
Code: 9=Standard, 1-9=Custom
2504101957_RESI-EWWR0010J10R0T9_C349084.pdf
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