RS01A50R00FS70 Equivalent & Substitute Parts

Part Overview

The RS01A50R00FS70 is a 50 Ohm, 1W wirewound axial resistor manufactured by Vishay Dale with ±1% tolerance and moisture-resistant construction. This component is designed for through-hole applications requiring precision resistance in high-temperature environments. The part is currently active in production with 722 units available in tape and reel packaging. Substitute parts are necessary when tape and reel packaging is unavailable or when alternative compliance certifications are required for specific applications.

Substiute Parts

RS01A50R00FS70

Vishay DaleIn Stock: 790RS01A50R00FS70 Datasheet

Current PartRFQ

RS01A50R00FE70

Vishay DaleIn Stock: 3525RS01A50R00FE70 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RS01A50R00FS70 is determined by the following critical parameters:

• Resistance value: 50 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1W (exact match required)
• Composition: Wirewound (exact match required)
• Package type: Axial (exact match required)
• Temperature coefficient: ±20ppm/°C (exact match required)
• Operating temperature range: -65°C to 250°C (exact match required)
• Physical dimensions: 0.094" Dia x 0.406" L (exact match required)
• Moisture resistance: Required feature (exact match required)

The primary difference between the main part and its substitute is packaging format: tape and reel (TR) versus cut tape (CT). Both formats contain identical electrical and mechanical specifications, with the distinction affecting only procurement and assembly processes.

Parameter Comparison

Engineering Selection Recommendations

The RS01A50R00FE70 is a direct functional equivalent to the RS01A50R00FS70, with identical electrical and mechanical specifications. Selection between these parts should be based on the following criteria:

Packaging Requirements: Choose RS01A50R00FS70 (tape and reel) for automated assembly processes requiring continuous reel feeding. Choose RS01A50R00FE70 (cut tape) for manual assembly, small-batch production, or applications where individual component handling is preferred.

Compliance Requirements: The RS01A50R00FE70 offers ROHS3 compliance and REACH unaffected status, making it suitable for applications with strict environmental and regulatory requirements. The RS01A50R00FS70 is RoHS non-compliant and REACH affected, requiring evaluation against specific application regulations.

Availability: The RS01A50R00FE70 provides significantly higher inventory availability (3459 units) compared to the RS01A50R00FS70 (722 units), making it preferable for applications with extended lead time constraints.

Frequently Asked Questions (FAQ)

Q: Can RS01A50R00FE70 be used as a direct replacement for RS01A50R00FS70?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance values, tolerance, power rating, temperature coefficient, operating temperature range, and physical dimensions. The only difference is packaging format (cut tape versus tape and reel).

Q: What is the difference between tape and reel (TR) and cut tape (CT) packaging?

A: Tape and reel packaging supplies components on a continuous reel suitable for automated pick-and-place assembly equipment. Cut tape packaging provides components in individual strips, typically used for manual assembly or small-batch production. Both formats contain the same component specifications.

Q: Are there compliance differences between these parts?

A: Yes. The RS01A50R00FE70 is ROHS3 compliant and REACH unaffected, while the RS01A50R00FS70 is RoHS non-compliant and REACH affected. Applications subject to environmental regulations should specify the RS01A50R00FE70.

Q: Do these parts have identical physical dimensions?

A: Yes. Both parts measure 0.094" diameter by 0.406" length (2.39mm x 10.31mm), ensuring identical board layout and mechanical fit.

Q: Which part should be selected for high-volume automated assembly?

A: The RS01A50R00FS70 in tape and reel format is designed for automated assembly processes. However, the RS01A50R00FE70 in cut tape format can also be used with appropriate feeder equipment, and offers superior availability and compliance certifications.