Equivalent & Substitute Parts for RT100AS6R80KB

Part Overview

The RT100AS6R80KB is a 6.8 Ohm, 100W wirewound potentiometer manufactured by Vishay Sfernice, designed for panel mount applications with solder lug termination. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations where this resistance value and power rating are required.

Substiute Parts

RT100AS6R80KB

Vishay SferniceIn Stock: 1099RT100AS6R80KB Datasheet

Current PartRFQ

RKS7R5E

OhmiteIn Stock: 704RKS7R5E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT100AS6R80KB is determined by the following critical parameters:

• Power Rating: 100W minimum requirement
• Resistive Material: Wirewound construction
• Termination Style: Solder Lug
• Mounting Type: Panel Mount
• Number of Turns: 1.0 turn
• Rotation: 300° mechanical rotation
• Tolerance: ±10%

The substitute part RKS7R5E from Ohmite meets these core electrical and mechanical specifications. The resistance value differs (7.5 Ohms versus 6.8 Ohms), which falls within the ±10% tolerance band and represents the closest available equivalent in the active product portfolio.

Parameter Comparison

Engineering Selection Recommendations

The RKS7R5E from Ohmite is the designated substitute for the obsolete RT100AS6R80KB. Selection of this substitute is based on:

• Product Status: The RT100AS6R80KB is obsolete; the RKS7R5E is in active production with confirmed inventory availability (642 Pcs).
• Electrical Equivalence: Both components share identical power ratings (100W), resistive material (wirewound), termination style (solder lug), and mechanical rotation (300°).
• Resistance Tolerance: The 7.5 Ohm resistance of the RKS7R5E falls within the ±10% tolerance specification of the original part, making it functionally equivalent for applications requiring 6.8 Ohm nominal resistance.
• Compliance: The RKS7R5E carries ROHS3 compliance certification, meeting current regulatory requirements for electronic components.

Frequently Asked Questions (FAQ)

Q: Can the RKS7R5E directly replace the RT100AS6R80KB in existing designs?

A: Yes. Both components share identical electrical specifications (100W power rating, wirewound construction, solder lug termination, 1.0 turn, 300° rotation) and mechanical mounting characteristics (panel mount). The 7.5 Ohm resistance of the RKS7R5E is within the ±10% tolerance band of the 6.8 Ohm original specification.

Q: What is the resistance tolerance impact of using RKS7R5E instead of RT100AS6R80KB?

A: The RKS7R5E provides 7.5 Ohms nominal resistance compared to the original 6.8 Ohms. This represents a 10.3% increase, which falls within the ±10% tolerance specification applicable to both components. Circuit designs must accommodate this tolerance band.

Q: Are there packaging differences between these components?

A: The RT100AS6R80KB packaging is not specified in available documentation. The RKS7R5E is supplied in bulk packaging. Both components use solder lug termination for panel mount applications.

Q: Does the RKS7R5E meet current regulatory requirements?

A: Yes. The RKS7R5E carries ROHS3 compliance certification. The original RT100AS6R80KB product status is listed as obsolete with no RoHS specification provided.

Q: What is the mechanical compatibility between these potentiometers?

A: Both components are panel mount wirewound potentiometers with identical rotation specifications (300°) and single-turn construction. The RKS7R5E features a flatted actuator type with 0.875" length and 0.250" diameter, compared to the RT100AS6R80KB round actuator at 0.984" length and 0.236" diameter. Physical mounting compatibility must be verified for specific panel cutout and actuator engagement requirements.