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 loads, severe shock, and vibration conditions. They are suitable for low ohmic value requirements and can be tapped using adjustable collars for flexible resistance adjustments. The RSSD series complements existing Vishay resistor lines in the low value range, providing robust performance and high long-term stability.
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: for definitions of compliance please see www.vishay.com/doc?99912
Technical Specifications
| Model Size | Resistance Range | Rated Power P25 C W | Tolerance % | Approx. Average Unit Weight (g) |
| RSSD 8 x 34 | 0.12 to 10 | 16 | 5, 10, 20 | 10 |
| RSSD 10 x 50 | 0.12 to 22 | 25 | 5, 10, 20 | 22 |
| RSSD 13 x 70 | 0.12 to 43 | 42 | 5, 10, 20 | 38 |
| RSSD 16 x 94 | 0.33 to 75 | 70 | 5, 10, 20 | 55 |
| RSSD 20 x 117 | 0.22 to 100 | 100 | 5, 10, 20 | 80 |
| RSSD 25 x 138 | 0.10 to 150 | 140 | 5, 10, 20 | 90 |
| RSSD 25 x 168 | 0.12 to 220 | 200 | 5, 10, 20 | 115 |
| RSSD 30 x 250 | 0.22 to 360 | 280 | 5, 10, 20 | 240 |
| RSSD 40 x 370 | 0.47 to 470 | 450 | 5, 10, 20 | 845 |
| RSSD 50 x 373 | 0.68 to 560 | 600 | 5, 10, 20 | 1270 |
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 % |
Ordering Information
Example: RSSD 10 50 AN 10U 5 % BA25
GLOBAL MODEL SIZE LEADS OHMIC VALUE TOLERANCE PACKAGING SPECIAL
RSSD 08 x 34, 10 x 50, 13 x 70, 16 x 94, 20 x 117, 25 x 138, 25 x 168, 30 x 250, 40 x 370, 50 x 373
A = AN, B = B, C = CS, F = faston
Ohmic Value: The three first digits are significant figures and the last digit specifies the number of zeros to follow. R designates decimal point. (e.g., 4700 = 470 , 48R5 = 48.5 , R010 = 0.01 )
Tolerance: J = 5 %, K = 10 %, M = 20 %
Packaging: Standard packaging: BXX = box, XXPCS (fixed qty depending on size). No standard packaging: B00 = box, qty open.
2412091029_VISHAY-RSSD50373A27R0JB01_C17674347.pdf
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