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RJ-6P504 Trimmer Potentiometer - Equivalent & Substitute Parts
Part Overview
The RJ-6P504 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 mechanical compatibility parameters are met within the allowed tolerance ranges for this product category.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Type |
|---|---|---|
| Resistance | 500 kOhms | Electrical |
| Power Rating | 0.5W (1/2W) | Electrical |
| Tolerance | ±10% | Electrical |
| Temperature Coefficient | ±100ppm/°C | Electrical |
| Number of Turns | 1 | Mechanical |
| Adjustment Type | Top Adjustment | Mechanical |
| Resistive Material | Cermet | Material |
| Mounting Type | Through Hole | Mechanical |
| Termination Style | PC Pins | Mechanical |
| RoHS Status | ROHS3 Compliant | Compliance |
Substitute Part Grouping Explanation
Substitution eligibility for the RJ-6P504 is determined by strict equivalence across the following critical parameters:
Electrical Parameters (Must Match Exactly):
- Resistance value: 500 kOhms
- Power rating: 0.5W (1/2W)
- Tolerance: ±10%
- Temperature coefficient: ±100ppm/°C
Mechanical Parameters (Must Match Exactly):
- Number of turns: 1
- Adjustment type: Top Adjustment
- Resistive material: Cermet
- Mounting type: Through Hole
- Termination style: PC Pins
Compliance Parameters (Must Match or Exceed):
- RoHS Status: ROHS3 Compliant minimum
- REACH Status: REACH Unaffected
The 72PR500KLF from TT Electronics/BI meets all electrical and material specifications. Physical package dimensions differ (square 0.375" x 0.375" versus round 0.276" diameter), but both maintain identical electrical performance and functional characteristics within the allowed parameter set for this trimmer potentiometer category.
Parameter Comparison
| Parameter | RJ-6P504 (Nidec) | 72PR500KLF (TT Electronics/BI) | Match Status |
|---|---|---|---|
| Resistance | 500 kOhms | 500 kOhms | Equivalent |
| Power Rating | 0.5W (1/2W) | 0.5W (1/2W) | Equivalent |
| Tolerance | ±10% | ±10% | Equivalent |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | Equivalent |
| Number of Turns | 1 | 1 | Equivalent |
| Adjustment Type | Top Adjustment | Top Adjustment | Equivalent |
| Resistive Material | Cermet | Cermet | Equivalent |
| Mounting Type | Through Hole | Through Hole | Equivalent |
| Termination Style | PC Pins | PC Pins | Equivalent |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| REACH Status | REACH Unaffected | REACH Unaffected | Equivalent |
| Package Dimension | Round - 0.276" Dia (7.00mm) | Square - 0.375" x 0.375" Face (9.53mm x 9.53mm) | Different Form Factor |
Engineering Selection Recommendations
Both the RJ-6P504 and 72PR500KLF maintain Active product status with full ROHS3 and REACH compliance. Selection between these parts should be based on:
Physical Space Constraints: The RJ-6P504 offers a smaller round package (7.00mm diameter) suitable for compact PCB layouts. The 72PR500KLF provides a square footprint (9.53mm x 9.53mm) that may offer improved mechanical stability in certain mounting configurations.
Supply Chain Availability: Current inventory shows 1969 units of 72PR500KLF available versus 849 units of RJ-6P504. Substitute selection may be driven by lead time and stock position requirements.
Electrical Performance: Both components deliver identical electrical characteristics across all specified parameters, ensuring functional interchangeability within circuit designs rated for 500 kOhm, 0.5W trimmer potentiometer applications.
Frequently Asked Questions (FAQ)
Q: Can the 72PR500KLF directly replace the RJ-6P504 in existing designs?
A: Yes, provided that the physical package dimensions (square 9.53mm x 9.53mm versus round 7.00mm) are compatible with the PCB layout and mechanical assembly. All electrical parameters, tolerance, temperature coefficient, and compliance certifications are identical.
Q: Are there any electrical performance differences between these parts?
A: No. Both components specify 500 kOhms resistance, ±10% tolerance, ±100ppm/°C temperature coefficient, and 0.5W power rating. Electrical behavior is equivalent.
Q: What is the significance of the different package shapes?
A: The RJ-6P504 uses a round form factor (0.276" diameter), while the 72PR500KLF uses a square form factor (0.375" x 0.375"). This affects PCB footprint design and mechanical mounting considerations but does not impact electrical function.
Q: Are both parts compliant with current environmental regulations?
A: Yes. Both the RJ-6P504 and 72PR500KLF are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions.
Q: Can I use these parts interchangeably in high-temperature applications?
A: Both parts maintain the same temperature coefficient specification (±100ppm/°C). Selection should be based on the specific operating temperature range requirements of the application and the thermal characteristics of the PCB assembly.
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