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 lower ohmic value ranges and can be tapped using adjustable collars for flexible configuration. Suitable for industrial high power applications.
Product Attributes
- Brand: Vishay Sfernice
- Material: WELDED STAINLESS STEEL 304 L COLLARS, SCREWED STAINLESS STEEL 304 L COLLARS
- Certifications: NF F 16101, 10/1988 and 16102, 04/1992: Not applicable
- Material Categorization: Refer to www.vishay.com/doc?99912 for compliance definitions.
Technical Specifications
| Model Size | Resistance Range () | Rated Power (W) at 25 C | Tolerance (%) | Approx. Average Unit Weight (g) | Dimensions (mm) - L | Dimensions (mm) - B MAX. | Dimensions (mm) - C MIN. |
| RSSD 8 x 34 | 0.12 to 10 | 16 | 5, 10, 20 | 10 | 34 | 10 | 4.1 |
| RSSD 10 x 50 | 0.12 to 22 | 25 | 5, 10, 20 | 22 | 50 | 11.5 | 5 |
| RSSD 13 x 70 | 0.12 to 43 | 42 | 5, 10, 20 | 38 | 70 | 14.5 | 6.7 |
| RSSD 16 x 94 | 0.33 to 75 | 70 | 5, 10, 20 | 55 | 94 | 18 | 9.2 |
| RSSD 20 x 117 | 0.22 to 100 | 100 | 5, 10, 20 | 80 | 117 | 22 | 12.6 |
| RSSD 25 x 138 | 0.10 to 150 | 140 | 5, 10, 20 | 90 | 138 | 27 | 16.4 |
| RSSD 25 x 168 | 0.12 to 220 | 200 | 5, 10, 20 | 115 | 168 | 27 | 16.4 |
| RSSD 30 x 250 | 0.22 to 360 | 280 | 5, 10, 20 | 240 | 250 | 32 | 21.3 |
| RSSD 40 x 370 | 0.47 to 470 | 450 | 5, 10, 20 | 845 | 370 | 43 | 22.3 |
| RSSD 50 x 373 | 0.68 to 560 | 600 | 5, 10, 20 | 1270 | 373 | 53 | 27.1 |
Performance Tests
| Test | Conditions | Requirements | Typical Values and Drifts |
| Short Time Overload | 10 Pr during 5 s | 2 % | 1 % |
| Climatic Sequence | -55 C, +200 C, 5 cycles | 3 % | 1 % |
| Thermal Shock | Load at 100 % Pr followed by cold -55 C / 15 min | 2 % or 0.05 | 1 % |
| Load Life | 90 / 30 cycle, 1000 h at Pr at +25 C | 5 % | 5 % |
Mechanical Specifications
| Specification | Details |
| Mechanical Protection | Vishay Sfernice special cement |
| Resistive Element | Nickel alloy wire |
| Connections | AN collars, CS supporting collars |
| Temperature Range | -55 C to +450 C |
| Climatic Category | -55 C / +200 C / 56 days |
2412091029_VISHAY-RSSD50373C5600JB01_C17652735.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible