RJ-6S103 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The RJ-6S103 is a 10 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based side-adjustment component is designed for PC pin termination in applications requiring precision variable resistance. The part maintains Active product status with full RoHS3 compliance and REACH unaffected classification. Substitute parts are identified to provide alternative sourcing options when primary inventory is unavailable or when packaging and dimensional specifications align with application requirements.

Substiute Parts

RJ-6S103

Nidec Components CorporationIn Stock: 927RJ-6S103 Datasheet

Current PartRFQ

25SR10KLF

TT Electronics/BIIn Stock: 759725SR10KLF Datasheet

SimilarRFQ

72XR10KLF

TT Electronics / BI TechnologiesIn Stock: 371872XR10KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RJ-6S103 are qualified based on electrical parameter equivalence and mechanical compatibility. The following criteria determine substitutability:

Electrical Parameters (Must Match):

• Resistance value: 10 kOhms
• Power rating: 0.5W (1/2W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 1
• Adjustment type: Side Adjustment
• Resistive material: Cermet

Mechanical Parameters (Must Match):

• Mounting type: Through Hole
• Termination style: PC Pins

Variable Parameters (Allowed to Differ):

• Physical dimensions (face size)
• Packaging format (Bulk, Tube)
• Manufacturer

The substitute parts 25SR10KLF and 72XR10KLF meet all electrical and core mechanical requirements. Dimensional differences exist and must be evaluated against specific PCB layout constraints.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and meet environmental compliance requirements. Selection between RJ-6S103, 25SR10KLF, and 72XR10KLF is determined by PCB layout constraints and available inventory.

RJ-6S103 (Nidec Components Corporation): Primary specification with rectangular 7.00mm x 6.60mm footprint. ROHS3 compliant. Suitable for designs with rectangular trimmer potentiometer mounting patterns.

25SR10KLF (TT Electronics/BI): Square 6.86mm x 6.86mm footprint. Compact alternative with minimal dimensional difference from primary part. Tube packaging. RoHS compliant. Suitable for space-constrained applications.

72XR10KLF (TT Electronics/BI): Square 9.53mm x 9.53mm footprint. Larger form factor. ROHS3 compliant. Suitable for applications where increased physical size is acceptable or preferred.

Frequently Asked Questions (FAQ)

Q: Can 25SR10KLF replace RJ-6S103 in existing designs? A: Yes, provided PCB layout accommodates the square 6.86mm x 6.86mm footprint. All electrical parameters are equivalent. Verify mounting hole spacing and clearance requirements.

Q: What is the primary difference between 25SR10KLF and 72XR10KLF? A: Physical dimensions differ. 25SR10KLF has a 6.86mm square face; 72XR10KLF has a 9.53mm square face. Electrical specifications are identical. Selection depends on available PCB space.

Q: Are all three parts RoHS compliant? A: Yes. RJ-6S103 and 72XR10KLF are ROHS3 compliant. 25SR10KLF is RoHS compliant. All meet environmental standards.

Q: Does packaging format affect electrical performance? A: No. Bulk and Tube packaging formats do not affect component performance. Selection is based on procurement and handling requirements.

Q: Can these parts be used interchangeably in high-temperature applications? A: All parts share identical temperature coefficient specifications (±100ppm/°C). Interchangeability is determined by physical fit and compliance requirements, not thermal performance.

Q: What is the significance of the rectangular versus square footprint? A: Footprint geometry affects PCB layout compatibility. Rectangular (RJ-6S103) and square (25SR10KLF, 72XR10KLF) designs require different mounting hole patterns. Verify PCB design before substitution.