PVC6M203A01B00 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The PVC6M203A01B00 is a 20 kOhms, 0.5W through-hole trimmer potentiometer manufactured by Bourns Inc. with ceramic resistive material and top adjustment capability. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Resistance	20 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
Size / Dimension	Square - 0.272" x 0.272" Face (6.90mm x 6.90mm)

Substitute Part Grouping Explanation

Substitution eligibility for the PVC6M203A01B00 is determined by matching the following critical parameters:

Resistance value: 20 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 specifications. Variations in resistive material (ceramic to cermet), physical dimensions, and compliance certifications do not affect functional substitutability within the specified parameter range.

Parameter Comparison

Part Number	Manufacturer	Resistance	Power (W)	Tolerance	Temp Coeff	Turns	Adjustment	Material	Mounting	Termination	Status	RoHS
PVC6M203A01B00	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Ceramic	Through Hole	PC Pins	Obsolete	Non-compliant
3362U-1-203LF	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Active	ROHS3 Compliant
25PR20KLF	TT Electronics/BI	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Active	RoHS Compliant
72PR20KLF	TT Electronics/BI	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Active	ROHS3 Compliant
82PR20KLF	TT Electronics/BI	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Active	ROHS3 Compliant
CT-6ETV203	Nidec Components Corporation	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: 3362U-1-203LF

The 3362U-1-203LF is the direct Bourns equivalent with active product status and ROHS3 compliance. This part maintains manufacturer continuity and is the preferred choice for new designs and obsolescence mitigation.

Alternative Options:

The 25PR20KLF, 72PR20KLF, 82PR20KLF, and CT-6ETV203 are functionally equivalent alternatives from TT Electronics/BI and Nidec Components Corporation. All are active products with current RoHS compliance certifications. Selection among these alternatives should be based on packaging requirements, physical dimensions, and supply chain availability.

Compliance Considerations:

The original PVC6M203A01B00 is RoHS non-compliant. All substitute parts listed are RoHS compliant, meeting current regulatory requirements for new applications and procurement cycles.

Frequently Asked Questions (FAQ)

Q: Can the PVC6M203A01B00 be directly replaced with any of these substitute parts?

A: Yes. All listed substitute parts match the critical electrical parameters (20 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn, top adjustment, through-hole mounting, PC pin termination). Physical dimensions vary slightly between models, but all are compatible with standard through-hole PCB layouts designed for 0.272" to 0.375" square or round footprints.

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

A: Both materials meet the specified electrical parameters. Cermet (ceramic-metal composite) offers improved stability and is used in the active substitute parts. The original PVC6M203A01B00 uses ceramic material. This material difference does not affect functional substitutability within the specified tolerance and temperature coefficient ranges.

Q: Are there packaging differences I should consider?

A: Yes. The 3362U-1-203LF is supplied in Tube packaging. The 25PR20KLF is supplied in Tube packaging. The 72PR20KLF and 82PR20KLF are supplied in Bulk packaging. The CT-6ETV203 is supplied in Tape & Box (TB) packaging. Packaging selection should align with procurement and assembly requirements.

Q: Why is the original PVC6M203A01B00 marked as obsolete?

A: Obsolete status indicates the part is no longer manufactured or supported by Bourns Inc. The 3362U-1-203LF represents the current active equivalent from the same manufacturer and should be used for new designs and ongoing production support.

Q: Do all substitute parts have the same physical footprint?

A: No. Physical dimensions vary: PVC6M203A01B00 is 0.272" x 0.272" square; 3362U-1-203LF is 0.275" x 0.260" rectangular; 25PR20KLF is 0.270" x 0.270" square; 72PR20KLF is 0.375" x 0.375" square; 82PR20KLF is 0.250" diameter round; CT-6ETV203 is 0.276" x 0.276" square. PCB layout modifications may be required depending on the substitute selected.

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