RJ-6W504 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The RJ-6W504 is a 500 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based component features top adjustment with PC pin termination and is designed for applications requiring precision resistance tuning in compact form factors. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and functional characteristics align with the main part's core parameters, enabling direct replacement in circuit designs.

Substiute Parts

RJ-6W504

Nidec Components CorporationIn Stock: 767RJ-6W504 Datasheet

Current PartRFQ

72PR500KLF

TT Electronics/BIIn Stock: 204372PR500KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RJ-6W504 is determined by strict alignment of the following core parameters:

• Resistance value: 500 kOhms (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Tolerance: ±10% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Number of turns: 1 (exact match required)
• Adjustment type: Top Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pins (exact match required)
• Regulatory compliance: RoHS3 Compliant (minimum requirement)

The 72PR500KLF from TT Electronics/BI meets all electrical and functional specifications. Physical form factor differences (round vs. square body) do not affect electrical performance or circuit compatibility when PCB layout accommodates the substitute geometry.

Parameter Comparison

Engineering Selection Recommendations

Both the RJ-6W504 and 72PR500KLF are Active status components with full RoHS3 compliance and REACH unaffected designation. Selection between these parts should be based on:

• PCB layout constraints: The RJ-6W504 occupies a smaller circular footprint (7.00mm diameter), while the 72PR500KLF requires a larger square footprint (9.53mm x 9.53mm). Verify available board space before substitution.
• Inventory availability: The 72PR500KLF currently has higher stock levels (1969 pcs vs. 696 pcs for RJ-6W504).
• Supplier lead times and procurement timelines.

All electrical and functional parameters are identical, ensuring direct circuit compatibility when physical mounting constraints are satisfied.

Frequently Asked Questions (FAQ)

Q: Can the 72PR500KLF directly replace the RJ-6W504 in my circuit?

A: Yes, from an electrical standpoint. All core specifications—resistance, power rating, tolerance, temperature coefficient, adjustment type, and termination style—are identical. The primary consideration is physical form factor: the 72PR500KLF has a larger footprint and requires verification that your PCB layout accommodates the square body geometry.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are RoHS3 compliant, REACH unaffected, and carry the same ECCN and HTSUS classifications.

Q: What is the significance of the different physical dimensions?

A: The RJ-6W504 uses a round body (7.00mm diameter), while the 72PR500KLF uses a square body (9.53mm x 9.53mm). This affects PCB footprint design and mounting hole placement. Electrical performance is unaffected by body shape.

Q: Do both parts have the same adjustment mechanism?

A: Yes. Both feature single-turn top adjustment, allowing identical tuning access and control characteristics in your application.

Q: What is the moisture sensitivity rating difference?

A: The RJ-6W504 has MSL 1 (Unlimited), while the 72PR500KLF lists MSL as Not Applicable. This does not affect substitution eligibility, as both parts are suitable for standard storage and handling conditions.