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PVC6H503A01B00 Equivalent & Substitute Parts
Part Overview
The PVC6H503A01B00 is a 50 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Bourns Inc. with ceramic resistive material, side adjustment, and PC pin termination. This part is classified as obsolete, making identification of suitable substitutes necessary for ongoing production and maintenance applications. Equivalent parts must maintain the same electrical specifications (50 kOhm resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient) and mechanical compatibility (through-hole mounting, PC pins, side adjustment, 1.0 turn).
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 50 kOhms |
| Power Rating | 0.5W (1/2W) |
| Tolerance | ±10% |
| Temperature Coefficient | ±100ppm/°C |
| Number of Turns | 1.0 |
| Adjustment Type | Side Adjustment |
| Mounting Type | Through Hole |
| Termination Style | PC Pins |
| Face Dimension | Rectangular - 0.315" x 0.272" (8.00mm x 6.90mm) |
Substitute Part Grouping Explanation
Substitution for the PVC6H503A01B00 is determined by strict equivalence across the following critical parameters: resistance value (50 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1.0), adjustment type (side adjustment), mounting type (through hole), and termination style (PC pins).
The substitute parts identified maintain these core electrical and mechanical specifications. Minor variations in resistive material (ceramic to cermet) and face dimensions within tolerance are acceptable for functional equivalence. Both substitute parts are active products with current manufacturing status, addressing the obsolescence of the original part.
Parameter Comparison
| Parameter | PVC6H503A01B00 | 3362X-1-503LF | RJ-6X503 |
|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Nidec Components Corporation |
| Resistance | 50 kOhms | 50 kOhms | 50 kOhms |
| Power Rating | 0.5W | 0.5W | 0.5W |
| Tolerance | ±10% | ±10% | ±10% |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Number of Turns | 1.0 | 1.0 | 1.0 |
| Adjustment Type | Side Adjustment | Side Adjustment | Side Adjustment |
| Resistive Material | Ceramic | Cermet | Cermet |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Termination Style | PC Pins | PC Pins | PC Pins |
| Face Dimension | 0.315" x 0.272" (8.00mm x 6.90mm) | 0.275" x 0.260" (6.99mm x 6.60mm) | 0.276" x 0.260" (7.00mm x 6.60mm) |
| Product Status | Obsolete | Active | Active |
| RoHS Status | Non-compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
For applications requiring replacement of the obsolete PVC6H503A01B00, the 3362X-1-503LF (Bourns Trimpot® 3362 - Sealed series) is the primary substitute. This part maintains full electrical equivalence and is ROHS3 compliant with active product status. The sealed design of the 3362X series provides enhanced environmental protection compared to the original ceramic-element design.
The RJ-6X503 (Nidec Components Corporation RJ-6 series) serves as an alternative substitute with equivalent electrical specifications and ROHS3 compliance. This part is also actively manufactured and provides functional interchangeability.
Both substitutes employ cermet resistive material, which offers improved stability and reliability compared to the ceramic material of the original part. Face dimensions of both substitutes are slightly smaller than the original part but remain within acceptable mechanical tolerance for standard through-hole PCB layouts.
Frequently Asked Questions (FAQ)
Q: Can the 3362X-1-503LF directly replace the PVC6H503A01B00 in existing designs?
A: Yes. Both parts share identical electrical specifications (50 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient, 1.0 turn, side adjustment) and mechanical compatibility (through-hole mounting, PC pins). The slightly smaller face dimensions of the 3362X-1-503LF (6.99mm x 6.60mm versus 8.00mm x 6.90mm) do not affect PCB layout compatibility for standard through-hole applications.
Q: What is the difference between ceramic and cermet resistive materials in these trimmers?
A: Both materials meet the specified electrical parameters for this application. Cermet (ceramic-metal composite) elements, used in the 3362X and RJ-6 series, typically provide improved frequency response, lower noise, and better long-term stability compared to ceramic elements. The choice between materials does not affect functional equivalence for the specified 50 kOhm, 0.5W application.
Q: Are there packaging differences between the substitute parts?
A: The 3362X-1-503LF is supplied in tube packaging, while the RJ-6X503 is supplied in bulk packaging. Both are suitable for production environments; packaging selection depends on procurement and assembly workflow requirements.
Q: Does the RoHS compliance status affect substitution eligibility?
A: The original PVC6H503A01B00 is RoHS non-compliant, while both substitutes (3362X-1-503LF and RJ-6X503) are ROHS3 compliant. For applications subject to RoHS regulations, the compliant substitutes are required. For legacy or non-regulated applications, either substitute remains functionally equivalent.
Q: What is the REACH status difference between the parts?
A: The original part is REACH unaffected, while the 3362X-1-503LF is REACH affected. The RJ-6X503 is REACH unaffected. REACH compliance status should be evaluated based on application requirements and supply chain regulations.
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