PVC6M503A01B00 Equivalent & Substitute Parts

Part Overview

The PVC6M503A01B00 is a 50 kOhms 0.5W through-hole trimmer potentiometer manufactured by Bourns Inc. with ceramic resistive material, top adjustment, and PC pin termination. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. Active alternatives with compatible electrical and mechanical specifications are available from both Bourns Inc. and TT Electronics/BI manufacturers.

Key Parameters

Parameter	Value
Resistance	50 kOhms
Power Rating	0.5W (1/2W)
Tolerance	±10%
Temperature Coefficient	±100ppm/°C
Number of Turns	1.0 Turn
Adjustment Type	Top Adjustment
Mounting Type	Through Hole
Termination Style	PC Pins

Substitute Part Grouping Explanation

Substitution eligibility for the PVC6M503A01B00 is determined by matching the following critical parameters: 50 kOhms resistance value, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1.0 turn adjustment, top adjustment type, through-hole mounting, and PC pin termination. All listed substitute parts meet these electrical specifications. Physical dimensions vary across substitute options, requiring verification of board layout compatibility. Resistive material differs between the original ceramic composition and substitute cermet compositions, which do not affect electrical performance within the specified tolerance and temperature coefficient ranges.

Parameter Comparison

Part Number	Manufacturer	Resistance	Power (W)	Tolerance	Temp Coeff	Turns	Adjustment	Mounting	Termination	Status	RoHS
PVC6M503A01B00	Bourns Inc.	50 kOhms	0.5	±10%	±100ppm/°C	1.0	Top	Through Hole	PC Pins	Obsolete	Non-compliant
3362U-1-503LF	Bourns Inc.	50 kOhms	0.5	±10%	±100ppm/°C	1.0	Top	Through Hole	PC Pins	Active	ROHS3 Compliant
25PR50KLF	TT Electronics/BI	50 kOhms	0.5	±10%	±100ppm/°C	1.0	Top	Through Hole	PC Pins	Active	RoHS Compliant
72PMR50KLF	TT Electronics/BI	50 kOhms	0.5	±10%	±100ppm/°C	1.0	Top	Through Hole	PC Pins	Active	ROHS3 Compliant
72PR50KLF	TT Electronics/BI	50 kOhms	0.5	±10%	±100ppm/°C	1.0	Top	Through Hole	PC Pins	Active	ROHS3 Compliant
82PR50KLF	TT Electronics/BI	50 kOhms	0.5	±10%	±100ppm/°C	1.0	Top	Through Hole	PC Pins	Active	ROHS3 Compliant

Engineering Selection Recommendations

The 3362U-1-503LF from Bourns Inc. is the primary direct substitute, offering active product status and ROHS3 compliance. This part maintains manufacturer continuity and is available in tube packaging with 2441 units in stock.

The 25PR50KLF, 72PMR50KLF, 72PR50KLF, and 82PR50KLF from TT Electronics/BI are functionally equivalent alternatives with active status and ROHS3 compliance. Selection among these options depends on physical dimension requirements for board layout integration. The 25PR50KLF features a square 0.270" x 0.270" face dimension closest to the original PVC6M503A01B00 specification of 0.272" x 0.272". The 72PMR50KLF and 72PR50KLF both present a larger 0.375" x 0.375" square form factor. The 82PR50KLF offers a round 0.250" diameter configuration.

All substitute parts meet the electrical specifications of 50 kOhms resistance, 0.5W power rating, ±10% tolerance, and ±100ppm/°C temperature coefficient. Packaging availability varies: 3362U-1-503LF is supplied in tube format, while TT Electronics/BI alternatives are available in bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can the 3362U-1-503LF directly replace the PVC6M503A01B00 without circuit modification?

A: The 3362U-1-503LF matches all electrical parameters and termination style. Physical dimensions differ slightly (0.275" x 0.260" versus 0.272" x 0.272"), requiring verification that board layout accommodates the rectangular form factor of the substitute.

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

A: Both materials meet the specified electrical performance within the ±10% tolerance and ±100ppm/°C temperature coefficient. Cermet composition used in substitute parts provides equivalent functional performance for this application.

Q: Are there dimensional constraints when selecting among the TT Electronics/BI alternatives?

A: Yes. The 25PR50KLF maintains a compact square footprint (0.270" x 0.270") suitable for space-constrained layouts. The 72PMR50KLF and 72PR50KLF require larger board area (0.375" x 0.375" square). The 82PR50KLF uses a round 0.250" diameter configuration. Board layout compatibility must be confirmed before selection.

Q: What is the inventory status for these substitute parts?

A: The 3362U-1-503LF has 2441 units in stock. The 25PR50KLF has 11557 units available. The 72PMR50KLF, 72PR50KLF, and 82PR50KLF have 1166, 1341, and 1017 units respectively in stock.

Q: Do all substitute parts meet current RoHS requirements?

A: The 3362U-1-503LF, 72PMR50KLF, 72PR50KLF, and 82PR50KLF are ROHS3 compliant. The 25PR50KLF is RoHS compliant. The original PVC6M503A01B00 is RoHS non-compliant and obsolete.

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