PVC6D503A01B00 Equivalent & Substitute Parts

Part Overview

The PVC6D503A01B00 is a 50 kOhm 0.5W through-hole trimmer potentiometer manufactured by Bourns Inc. in the PVC6 series. This component features ceramic resistive material, PC pin termination, and top adjustment capability with 1 turn operation. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Resistance	50 kOhms
Power Rating	0.5W (1/2W)
Tolerance	±10%
Temperature Coefficient	±100ppm/°C
Number of Turns	1
Adjustment Type	Top Adjustment
Mounting Type	Through Hole
Termination Style	PC Pins
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the PVC6D503A01B00 is determined by strict equivalence across the following parameters:

Resistance value: 50 kOhms
Power rating: 0.5W (1/2W)
Tolerance: ±10%
Temperature coefficient: ±100ppm/°C
Number of turns: 1
Adjustment type: Top Adjustment
Mounting type: Through Hole
Termination style: PC Pins

All substitute parts listed meet these core electrical and mechanical requirements. Variations in resistive material (ceramic to cermet), physical dimensions, and compliance certifications do not affect functional substitutability within the specified parameter set.

Parameter Comparison

Part Number	Manufacturer	Resistance	Power (W)	Tolerance	Temp Coeff (ppm/°C)	Turns	Adjustment	Resistive Material	Product Status	RoHS Status
PVC6D503A01B00	Bourns Inc.	50k	0.5	±10%	±100	1	Top	Ceramic	Obsolete	Non-compliant
3362R-1-503LF	Bourns Inc.	50k	0.5	±10%	±100	1	Top	Cermet	Active	ROHS3 Compliant
25PR50KLF	TT Electronics/BI	50k	0.5	±10%	±100	1	Top	Cermet	Active	RoHS Compliant
72PMR50KLF	TT Electronics/BI	50k	0.5	±10%	±100	1	Top	Cermet	Active	ROHS3 Compliant
72PR50KLF	TT Electronics/BI	50k	0.5	±10%	±100	1	Top	Cermet	Active	ROHS3 Compliant
82PR50KLF	TT Electronics/BI	50k	0.5	±10%	±100	1	Top	Cermet	Active	ROHS3 Compliant

Engineering Selection Recommendations

The PVC6D503A01B00 is obsolete and no longer in active production. Direct replacement is recommended using active-status alternatives that maintain identical electrical specifications.

The 3362R-1-503LF (Bourns Inc., Trimpot® 3362 - Sealed series) is the primary direct substitute, offering the same manufacturer lineage with ROHS3 compliance and active product status. This part is available in tube packaging with 1348 units in stock.

For applications requiring alternative manufacturers, the TT Electronics/BI series provides four equivalent options: 25PR50KLF, 72PMR50KLF, 72PR50KLF, and 82PR50KLF. All maintain identical electrical parameters and active product status with ROHS3 compliance. Selection among these alternatives depends on packaging requirements (tube versus bulk) and physical form factor constraints.

All substitute parts employ cermet resistive material in place of the original ceramic composition. Cermet technology provides improved stability and reliability characteristics while maintaining the specified electrical performance envelope.

Frequently Asked Questions (FAQ)

Q: Can the PVC6D503A01B00 be directly replaced with any of the listed substitutes?

A: Yes. All listed substitute parts meet the core electrical and mechanical requirements: 50 kOhm resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn operation, top adjustment, through-hole mounting, and PC pin termination. Physical dimensions and resistive material composition differ but do not affect functional compatibility within these specified parameters.

Q: What is the difference between ceramic and cermet resistive materials in these trimmer potentiometers?

A: Both materials meet the specified electrical parameters for this application. Cermet (ceramic-metal composite) offers enhanced stability and reliability characteristics compared to ceramic. All substitute parts use cermet material, which represents current manufacturing standards for this component category.

Q: Are there packaging differences among the substitute parts?

A: Yes. The 3362R-1-503LF is supplied in tube packaging. The TT Electronics/BI alternatives (25PR50KLF, 72PMR50KLF, 72PR50KLF, 82PR50KLF) are supplied in bulk packaging. Packaging selection should align with procurement and assembly process requirements.

Q: What are the physical dimension differences?

A: The original PVC6D503A01B00 has a square face of 0.272" x 0.272" (6.90mm x 6.90mm). The 3362R-1-503LF has a rectangular face of 0.275" x 0.260" (6.99mm x 6.60mm). The 25PR50KLF has a square face of 0.270" x 0.270" (6.86mm x 6.86mm). The 72PMR50KLF and 72PR50KLF have square faces of 0.375" x 0.375" (9.53mm x 9.53mm). The 82PR50KLF has a round form factor of 0.250" diameter (6.35mm). Dimension compatibility must be verified against PCB layout constraints.

Q: Which substitute offers the best compliance status?

A: All active substitutes are ROHS3 compliant or RoHS compliant. The original PVC6D503A01B00 is RoHS non-compliant. For new designs subject to RoHS requirements, any of the listed substitutes satisfies current regulatory standards.

Q: Is the 3362R-1-503LF the recommended first choice?

A: The 3362R-1-503LF maintains Bourns Inc. manufacturer continuity and represents the direct evolution of the PVC6 series within the Trimpot® 3362 - Sealed line. It is the primary recommendation for applications where manufacturer consistency is a design consideration. Alternative selections should be based on specific packaging, form factor, or supply chain requirements.

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