RS02B7K500FS70 Equivalent & Substitute Parts

Part Overview

The RS02B7K500FS70 is a 7.5 kOhms ±1% 3W wirewound axial resistor manufactured by Vishay Dale. This through-hole component features moisture-resistant construction and operates across a wide temperature range from -65°C to 250°C. The part maintains Active product status with 802 units currently in stock. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility to support procurement flexibility and supply chain continuity.

Substiute Parts

RS02B7K500FS70

Vishay DaleIn Stock: 912RS02B7K500FS70 Datasheet

Current PartRFQ

43F7K5

OhmiteIn Stock: 108843F7K5 Datasheet

MFR RecommendedRFQ

83F7K5

OhmiteIn Stock: 96583F7K5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RS02B7K500FS70 are qualified based on the following critical parameters:

• Resistance value: 7.5 kOhms
• Tolerance: ±1%
• Power rating: 3W
• Composition: Wirewound
• Package: Axial through-hole
• Temperature coefficient: ±20ppm/°C
• Number of terminations: 2

Both identified substitutes—43F7K5 (Ohmite Ohmicone® 40 series) and 83F7K5 (Ohmite Acrasil® 80 series)—meet all core electrical and mechanical parameters. Physical dimensions vary slightly between models but remain compatible with standard axial component footprints.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RS02B7K500FS70, 43F7K5, and 83F7K5—maintain Active product status and share identical electrical specifications. Selection between these components should be based on:

• Packaging requirements: RS02B7K500FS70 is supplied in Tape & Reel format; 43F7K5 and 83F7K5 are supplied in Bulk packaging
• Physical dimensions: The Vishay Dale part features a smaller diameter (0.187") compared to Ohmite alternatives (0.217"–0.220")
• Compliance certifications: All parts carry EAR99 ECCN classification and identical HTSUS codes
• Moisture sensitivity: RS02B7K500FS70 specifies moisture-resistant features; 83F7K5 carries MSL 1 (Unlimited) rating

Frequently Asked Questions (FAQ)

Q: Can 43F7K5 or 83F7K5 be used as direct replacements for RS02B7K500FS70?

A: Yes. Both Ohmite parts match the critical electrical parameters: 7.5 kOhms resistance, ±1% tolerance, 3W power rating, ±20ppm/°C temperature coefficient, and axial through-hole package. Physical dimensions differ slightly but remain compatible with standard PCB layouts designed for axial components.

Q: What is the primary difference between 43F7K5 and 83F7K5?

A: Both parts are functionally equivalent in electrical performance. The 43F7K5 belongs to the Ohmicone® 40 series, while 83F7K5 belongs to the Acrasil® 80 series. Physical dimensions vary marginally (diameter 0.220" vs. 0.217"), and 83F7K5 carries an MSL 1 (Unlimited) moisture sensitivity rating.

Q: Are there packaging considerations when substituting these parts?

A: Yes. RS02B7K500FS70 is supplied in Tape & Reel format suitable for automated assembly. The Ohmite substitutes (43F7K5 and 83F7K5) are supplied in Bulk packaging, which may require different handling procedures depending on assembly requirements.

Q: Do all three parts comply with the same regulatory standards?

A: All three parts carry EAR99 ECCN classification and 8533.21.0080 HTSUS codes. None are RoHS compliant. Compliance with specific application requirements should be verified against your design specifications.

Q: What is the operating temperature range for these substitutes?

A: The RS02B7K500FS70 specifies -65°C to 250°C. Operating temperature data for 43F7K5 and 83F7K5 is not provided in the available specifications; this parameter should be confirmed with the manufacturer if extended temperature operation is required.