Ohmite RJS1R0 1 Ohm 50W Wirewound Linear Potentiometer - Equivalent & Substitute Parts

Part Overview

The Ohmite RJS1R0 is a 1 ohm, 50-watt wirewound linear potentiometer designed for panel mount applications with a 1-turn adjustment mechanism. This component is classified as Active product status and is currently in stock inventory. The RJS1R0 features a flatted actuator with solder lug termination, making it suitable for applications requiring precise resistance adjustment in high-power environments. Substitute parts are identified to provide alternatives for procurement flexibility, inventory management, or compliance requirements.

Substiute Parts

RJS1R0

OhmiteIn Stock: 871RJS1R0 Datasheet

Current PartRFQ

RJS1R0E

OhmiteIn Stock: 726RJS1R0E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RJS1R0 is determined by matching the following critical electrical and mechanical parameters:

• Resistance value: 1 Ohm
• Power rating: 50W
• Taper characteristic: Linear
• Number of turns: 1
• Resistive material: Wirewound
• Termination style: Solder Lug
• Mounting configuration: Panel Mount
• Rotation angle: 300°
• Tolerance: ±10%
• Bushing thread specification: 3/8-32
• Body size: Round - 2.310" Dia (58.67mm)
• Actuator type: Flatted
• Actuator dimensions: 0.875" (22.23mm) length, 0.250" (6.35mm) diameter

The RJS1R0E qualifies as a direct substitute based on identical electrical specifications and mechanical dimensions. Both parts are manufactured by Ohmite and belong to the J series potentiometer line.

Parameter Comparison

Engineering Selection Recommendations

The RJS1R0E serves as a direct electrical and mechanical equivalent to the RJS1R0. Both parts maintain identical functional specifications across all critical parameters including resistance value, power rating, taper characteristic, termination style, and mechanical dimensions.

The primary distinction between these parts is regulatory compliance status. The RJS1R0E achieves ROHS3 compliance and REACH Unaffected status, whereas the RJS1R0 is classified as RoHS non-compliant. Selection between these parts should be based on applicable regulatory requirements for the end application and target market. Applications subject to RoHS3 or REACH regulations require the RJS1R0E. Applications without such regulatory constraints may utilize either part based on inventory availability and procurement lead times.

Both parts are manufactured by Ohmite and maintain Active product status, ensuring continued availability and technical support.

Frequently Asked Questions (FAQ)

Q: Can the RJS1R0E be used as a direct replacement for the RJS1R0 in existing designs?

A: Yes. The RJS1R0E is electrically and mechanically identical to the RJS1R0. All functional parameters, including resistance, power rating, taper, termination style, and mechanical dimensions, are equivalent. No circuit redesign or mechanical modification is required.

Q: What is the difference between the RJS1R0 and RJS1R0E?

A: The primary difference is regulatory compliance. The RJS1R0E is ROHS3 compliant and REACH Unaffected, while the RJS1R0 is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements. For applications subject to RoHS3 or REACH regulations, specify the RJS1R0E. For applications without such constraints, either part is functionally suitable based on availability.

Q: Are the physical dimensions and mounting interfaces identical?

A: Yes. Both parts feature identical body size (2.310" diameter), bushing thread (3/8-32), actuator dimensions (0.875" length, 0.250" diameter), and panel mount configuration. No mechanical modifications are required for substitution.

Q: What is the tolerance specification for these potentiometers?

A: Both the RJS1R0 and RJS1R0E maintain a tolerance of ±10% on the 1 ohm resistance value.

Q: Are these parts suitable for high-power applications?

A: Yes. Both parts are rated for 50-watt continuous operation, making them suitable for high-power resistance adjustment applications. The wirewound construction provides the thermal characteristics necessary for sustained power dissipation.