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Specifications
Resistance:
2Ω
Power(Watts):
25W
Tolerance:
±1%
Mfr. Part #:
RH0252R000FE02
Package:
Through Hole
Key Attributes
Model Number:
RH0252R000FE02
Product Description
Vishay Dale Wirewound Resistors, Industrial Power, Aluminum Housed, Chassis Mount
These industrial power wirewound resistors are designed for chassis mounting, utilizing the heat-sink effect for efficient thermal management. They feature a molded construction for complete environmental protection and welded construction for reliability. Available in both standard (RH) and non-inductive (NH) styles, these resistors are suitable for applications requiring high power dissipation and excellent stability. The non-inductive NH series utilizes an Ayrton-Perry winding for minimal reactive components.
Product Attributes
- Brand: Vishay Dale
- Construction: Molded, Welded
- Certifications: Meets applicable requirements of MIL-PRF-18546
- Material Compliance: Refer to www.vishay.com/doc?99912 for definitions
- Terminations: RoHS-compliant and non-RoHS-compliant options available (e.g., leaded parts are not RoHS-compliant)
Technical Specifications
| Global Model | Historical Model | Power Rating (P25C) W | Resistance Range ( 0.05%, 0.1%) | Resistance Range ( 0.25%) | Resistance Range ( 0.5%) | Resistance Range ( 1%, 3%, 5%) | Weight (typical) g | Temperature Coefficient ppm/C | Maximum Working Voltage V (P x R)1/2 | Insulation Resistance | Solderability | Operating Temperature Range C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RH005 | RH-5 | 7.5 | 0.5 to 6.75K | 0.1 to 8.6K | 0.05 to 8.6K | 0.02 to 24.5K | 3 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| NH005 | NH-5 | 7.5 | 0.5 to 2.32K | 0.1 to 3.27K | 0.05 to 3.27K | 0.05 to 12.75K | 3 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| RH010 | RH-10 | 12.5 | 0.5 to 12.7K | 0.1 to 16.69K | 0.05 to 16.69K | 0.01 to 47.1K | 5 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| NH010 | NH-10 | 12.5 | 0.5 to 4.45K | 0.1 to 5.54K | 0.05 to 5.54K | 0.05 to 23.5K | 5 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| RH025 | RH-25 | 25 | 0.5 to 25.7K | 0.1 to 32.99K | 0.05 to 32.99K | 0.01 to 95.2K | 12 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| NH025 | NH-25 | 25 | 0.5 to 9.09K | 0.1 to 12.8K | 0.05 to 12.8K | 0.05 to 47.6K | 12 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| RH050 | RH-50 | 50 | 0.5 to 73.4K | 0.1 to 96K | 0.05 to 96K | 0.01 to 273K | 28 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| NH050 | NH-50 | 50 | 0.5 to 26K | 0.1 to 36.7K | 0.05 to 36.7K | 0.05 to 136K | 28 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| RH100 | RH-100 | 100 | 0.5 to 90K | 0.1 to 90K | 0.05 to 90K | 0.05 to 90K | 353 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| NH100 | NH-100 | 100 | 0.5 to 37.5K | 0.1 to 37.5K | 0.05 to 37.5K | 0.05 to 37.5K | 353 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| RH250 | RH-250 | 250 | 0.5 to 116K | 0.1 to 116K | 0.05 to 116K | 0.05 to 116K | 637 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
| NH250 | NH-250 | 250 | 0.5 to 48.5K | 0.1 to 48.5K | 0.05 to 48.5K | 0.05 to 48.5K | 637 | 20 ( 10), 50 (1 to 9.9), 100 (0.1 to 0.99) | (P x R)1/2 | 10 000 M min. dry, 1000 M min. after moisture test | Meets ANSI J-STD-002 | -55 to +250 |
Material Specifications
- Element: Copper-nickel alloy or nickel-chrome alloy (depending on resistance value)
- Core: Ceramic (steatite or alumina, depending on physical size)
- Encapsulant: Silicone molded construction
- Housing: Aluminum with hard anodic coating
- End Caps: Stainless steel
- Standard Terminals: Tin/lead (60/40 Sn/Pb w/Nickel underplate) or lead-free (Ni/Pd/Au on copper clad steel core) for RH005-RH050. Threaded stainless steel for RH100 and RH250.
Part Marking
Marked with: Vishay Dale, model, wattage, value, tolerance, date code.
Non-Inductive Models (NH)
Models with equivalent physical and electrical specifications are available with non-inductive (Ayrton-Perry) winding. Identified by substituting 'N' for 'R' in the model number (e.g., NH005).
Special Modifications
Available upon request, including terminal configurations.
2412061720_VISHAY-RH0252R000FE02_C3009744.pdf
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