RES3K5 Equivalent & Substitute Parts

Part Overview

The RES3K5 is a 3.5k Ohm wirewound potentiometer manufactured by Ohmite, designed for panel mount applications requiring linear taper adjustment. This component is classified as Active product status and is available in bulk packaging with 830 units in current inventory. The RES3K5 serves applications requiring precise resistive adjustment in 12.5W power dissipation environments with a single-turn, slotted actuator configuration. Identifying equivalent and substitute parts becomes necessary when addressing supply chain continuity, compliance requirements, or specific application constraints.

Substiute Parts

RES3K5

OhmiteIn Stock: 894RES3K5 Datasheet

Current PartRFQ

RES3K5E

OhmiteIn Stock: 1153RES3K5E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RES3K5 is determined by strict equivalence across the following critical parameters: resistance value (3.5k Ohm), power rating (12.5W), tolerance (±10%), taper characteristic (Linear), number of turns (1), resistive material composition (Wirewound), termination method (Solder Lug), and mechanical mounting interface (Panel Mount with 1/4-32 bushing thread). The RES3K5E qualifies as a direct substitute based on complete alignment with all specified electrical and mechanical parameters. Both components share identical functional specifications within the Ohmite E-series potentiometer line.

Parameter Comparison

Engineering Selection Recommendations

The RES3K5E represents a functionally equivalent substitute for the RES3K5 across all specified electrical and mechanical parameters. Both components maintain Active product status within the Ohmite E-series portfolio. A significant distinction exists in regulatory compliance: the RES3K5E achieves RoHS Compliant status, while the RES3K5 is classified as RoHS non-compliant. Applications subject to RoHS directives or requiring lead-free component specifications should prioritize the RES3K5E. The RES3K5E also carries Moisture Sensitivity Level 1 (Unlimited) designation, indicating superior environmental stability compared to the RES3K5. Current inventory levels support both options, with 1053 units of RES3K5E available against 830 units of RES3K5.

Frequently Asked Questions (FAQ)

Q: Can RES3K5E replace RES3K5 in existing designs? A: Yes. The RES3K5E provides complete electrical and mechanical equivalence. All resistance, power, tolerance, taper, termination, and mounting specifications are identical. Direct substitution is feasible without circuit redesign.

Q: What is the primary difference between these two parts? A: The RES3K5E is RoHS Compliant with Moisture Sensitivity Level 1 (Unlimited), while the RES3K5 is RoHS non-compliant. Functional performance is identical.

Q: Should I select RES3K5E over RES3K5? A: Selection depends on regulatory requirements. If RoHS compliance is mandated or preferred, RES3K5E is the appropriate choice. Both components are Active status with adequate inventory.

Q: Are there any mechanical compatibility concerns? A: No. Both components share identical panel mount configuration, 1/4-32 bushing thread, slotted actuator design, and body dimensions. Mechanical installation is interchangeable.

Q: What does ±10% tolerance mean for the 3.5k Ohm specification? A: Resistance values will fall within the range of 3.15k Ohm to 3.85k Ohm at nominal conditions. Both RES3K5 and RES3K5E maintain this tolerance specification.