RS00550K00FS73 Equivalent & Substitute Parts

Part Overview

The RS00550K00FS73 is a 50 kOhms ±1% 5W wirewound axial resistor manufactured by Vishay Dale. This component is designed for through-hole applications requiring moisture-resistant performance across industrial temperature ranges. The part is currently active in production. Substitute parts are identified to address packaging format availability and compliance requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

RS00550K00FS73

Vishay DaleIn Stock: 861RS00550K00FS73 Datasheet

Current PartRFQ

RS00550K00FE73

Vishay DaleIn Stock: 4340RS00550K00FE73 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RS00550K00FE73 qualifies as a direct substitute for the RS00550K00FS73 based on the following criteria:

Electrical Parameters (Identical):

• Resistance value: 50 kOhms
• Tolerance: ±1%
• Power rating: 5W
• Temperature coefficient: ±20ppm/°C
• Operating temperature range: -65°C to 250°C

Mechanical Parameters (Identical):

• Composition: Wirewound
• Package type: Axial
• Physical dimensions: 0.312" Dia x 0.875" L (7.92mm x 22.23mm)
• Number of terminations: 2
• Features: Moisture Resistant

Packaging Difference: The primary distinction between these parts is the distribution format. RS00550K00FS73 is supplied in Tape & Reel (TR) format, while RS00550K00FE73 is supplied in Cut Tape (CT) format. Both formats contain identical components with no functional or performance differences.

Parameter Comparison

Engineering Selection Recommendations

Both RS00550K00FS73 and RS00550K00FE73 are functionally equivalent and interchangeable from an electrical and mechanical standpoint. Selection between these parts should be based on the following factors:

Packaging Format Requirements: Choose RS00550K00FS73 (Tape & Reel) for automated assembly processes requiring continuous reel feeding. Select RS00550K00FE73 (Cut Tape) for manual assembly, small-batch production, or applications where individual component handling is preferred.

Compliance Considerations: RS00550K00FE73 carries RoHS3 compliance certification, while RS00550K00FS73 is RoHS non-compliant. For applications subject to RoHS regulatory requirements, RS00550K00FE73 is the appropriate selection.

Inventory and Lead Time: Current stock levels differ between formats. RS00550K00FE73 maintains higher inventory availability (4268 pcs) compared to RS00550K00FS73 (782 pcs), which may influence procurement decisions for time-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can RS00550K00FE73 be used as a direct replacement for RS00550K00FS73 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The only difference is the packaging format (Cut Tape vs. Tape & Reel). No circuit design modifications are required.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) format supplies components on a continuous reel suitable for automated pick-and-place assembly equipment. Cut Tape (CT) format provides components on tape segments, typically used for manual assembly or lower-volume production runs. The components themselves are identical.

Q: Are there any performance differences between these two part numbers?

A: No. Both parts have identical electrical specifications (50 kOhms ±1%, 5W, ±20ppm/°C temperature coefficient, -65°C to 250°C operating range) and mechanical dimensions (0.312" Dia x 0.875" L). Performance is equivalent.

Q: Why does RS00550K00FE73 have RoHS3 compliance while RS00550K00FS73 does not?

A: RoHS compliance status may differ between packaging formats due to manufacturing process variations or supply chain sourcing. Both parts contain identical resistive elements. If RoHS compliance is a design requirement, RS00550K00FE73 is the appropriate selection.

Q: Can I mix these parts in the same production batch?

A: Yes, from a functional standpoint. However, assembly process compatibility should be evaluated. Tape & Reel format requires automated equipment, while Cut Tape format is suitable for manual or semi-automated assembly. Mixing formats may require process adjustments.

Q: What is the moisture resistance rating for these components?

A: Both parts are specified as moisture-resistant wirewound resistors. Specific moisture sensitivity levels are not applicable to this product category. The moisture-resistant feature provides protection in humid operating environments within the specified temperature range.