RJ-6P503 Trimmer Potentiometer: Equivalent & Substitute Parts

Part Overview

The RJ-6P503 is a 50 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 731 units in current inventory. Substitute parts are identified based on matching electrical specifications and mechanical compatibility within the through-hole trimmer potentiometer category.

Substiute Parts

RJ-6P503

Nidec Components CorporationIn Stock: 763RJ-6P503 Datasheet

Current PartRFQ

25PR50KLF

TT Electronics/BIIn Stock: 1166425PR50KLF Datasheet

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3329H-1-503LF

Bourns Inc.In Stock: 64933329H-1-503LF Datasheet

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72PR50KLF

TT Electronics/BIIn Stock: 140172PR50KLF Datasheet

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82PR50KLF

TT Electronics/BIIn Stock: 110082PR50KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RJ-6P503 are qualified based on electrical parameter equivalence and mechanical compatibility. All substitute candidates match the following critical parameters: 50 kOhm resistance value, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1-turn adjustment, top adjustment type, cermet resistive material, through-hole mounting, and PC pin termination. Physical dimensions vary across substitute options, accommodating different PCB layout requirements while maintaining functional equivalence. All substitutes maintain Active product status and comply with RoHS and REACH regulations.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and meet or exceed the RoHS and REACH compliance requirements of the RJ-6P503. Selection among substitutes depends on PCB layout constraints and available inventory:

The 25PR50KLF offers the smallest footprint with square geometry (6.86mm x 6.86mm) and highest inventory availability (11557 units), suitable for space-constrained applications.

The 3329H-1-503LF (Bourns Trimpot® 3329 Sealed series) provides a compact round form factor (6.35mm diameter) with sealed construction and ROHS3 compliance, with 6384 units available.

The 72PR50KLF features a larger square footprint (9.53mm x 9.53mm) for applications with less stringent space requirements, with 1341 units in stock.

The 82PR50KLF offers a compact round geometry (6.35mm diameter) matching the 3329H-1-503LF footprint, with 1017 units available.

Frequently Asked Questions (FAQ)

Q: What electrical parameters must match for substitution? A: The substitute part must maintain 50 kOhm resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1-turn adjustment, top adjustment type, cermet resistive material, through-hole mounting, and PC pin termination.

Q: How do physical dimensions affect substitution? A: Physical dimensions vary across substitute options (round or square, ranging from 6.35mm to 9.53mm). Selection depends on available PCB space and hole pattern compatibility. All substitutes use identical PC pin spacing for through-hole mounting.

Q: Are all substitutes RoHS compliant? A: Yes. The RJ-6P503 is ROHS3 compliant. All substitute parts meet RoHS requirements: 25PR50KLF is RoHS compliant, while 3329H-1-503LF, 72PR50KLF, and 82PR50KLF are ROHS3 compliant.

Q: What is the difference between round and square form factors? A: Round and square geometries accommodate different PCB layout designs. Round parts (RJ-6P503, 3329H-1-503LF, 82PR50KLF) offer compact profiles, while square parts (25PR50KLF, 72PR50KLF) provide alternative mounting footprints. Electrical performance is identical.

Q: Which substitute has the highest inventory availability? A: The 25PR50KLF (TT Electronics/BI) has the highest inventory with 11557 units in stock, followed by the 3329H-1-503LF with 6384 units.

Q: Are sealed variants available among the substitutes? A: The 3329H-1-503LF is part of the Bourns Trimpot® 3329 Sealed series, providing sealed construction for enhanced environmental protection compared to standard variants.