Product Overview
The Vishay Sfernice RSSD series offers industrial high-power, vitreous tubular, adjustable wirewound resistors designed for demanding applications. These resistors are known for their ability to withstand heavy transient conditions, severe shock, and vibration. They complement existing Vishay styles in the low ohmic value range and feature adjustable collars for precise tapping. Ideal for applications requiring high power ratings, robust construction, and excellent stability.
Product Attributes
- Brand: Vishay Sfernice
- Material: WELDED STAINLESS STEEL 304 L COLLARS, SCREWED STAINLESS STEEL 304 L COLLARS, Resistive Element Nickel alloy wire, Mechanical Protection Vishay Sfernice special cement
- Certifications: NF F 16101, 10/1988 and 16102, 04/1992 (Not applicable)
Technical Specifications
| Model Size | Resistance Range | Rated Power P25 C W | Tolerance % | Approx. Average Unit Weight (g) | Dimensions (mm) L x | Max. Number of Additional Tapping | Reduction % of Ohmic Value by Tapping |
| RSSD 8 x 34 | 0.12 to 10 | 16 | 5, 10, 20 | 10 | 34 x 8 | 0 | 23 |
| RSSD 10 x 50 | 0.12 to 22 | 25 | 5, 10, 20 | 22 | 50 x 10 | 1 | 21 |
| RSSD 13 x 70 | 0.12 to 43 | 42 | 5, 10, 20 | 38 | 70 x 13 | 1 | 14 |
| RSSD 16 x 94 | 0.33 to 75 | 70 | 5, 10, 20 | 55 | 94 x 16 | 1 | 11 |
| RSSD 20 x 117 | 0.22 to 100 | 100 | 5, 10, 20 | 80 | 117 x 20 | 1 | 10 |
| RSSD 25 x 138 | 0.10 to 150 | 140 | 5, 10, 20 | 90 | 138 x 25 | 1 | 8 |
| RSSD 25 x 168 | 0.12 to 220 | 200 | 5, 10, 20 | 115 | 168 x 25 | 2 | 6.5 |
| RSSD 30 x 250 | 0.22 to 360 | 280 | 5, 10, 20 | 240 | 250 x 30 | 2 | 6 |
| RSSD 40 x 370 | 0.47 to 470 | 450 | 5, 10, 20 | 845 | 370 x 40 | 4 | 5.7 |
| RSSD 50 x 373 | 0.68 to 560 | 600 | 5, 10, 20 | 1270 | 373 x 50 | 4 | 5.7 |
2412091029_VISHAY-RSSD50373C4500JB01_C17692666.pdf
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