82PR20KLF Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The 82PR20KLF is a 20 kOhms, 0.5W through-hole trimmer potentiometer manufactured by TT Electronics/BI. This cermet-based component features top adjustment with PC pin termination and is rated for ±10% tolerance with a temperature coefficient of ±100ppm/°C. The part is currently active in production with ROHS3 compliance. Equivalent and substitute parts are necessary when the original part becomes unavailable, when alternative packaging formats are required, or when design specifications allow for compatible form factors from qualified manufacturers.

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
Resistive Material	Cermet
Mounting Type	Through Hole
Termination Style	PC Pins

Substitute Part Grouping Explanation

Substitution eligibility for the 82PR20KLF is determined by strict equivalence across the following critical parameters: resistance value (20 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1), adjustment type (top adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins). All substitute parts listed maintain these core electrical and mechanical specifications. Physical form factor variations (round versus rectangular versus square) are permitted as they do not affect electrical performance or circuit board integration when mounting footprints are compatible. Packaging format differences (bulk, tube, cut tape) represent logistical variations only and do not impact functional equivalence.

Parameter Comparison

Part Number	Manufacturer	Resistance	Power (W)	Tolerance	Temp Coeff	Turns	Adjustment	Material	Mount Type	Termination	Form Factor	RoHS Status
82PR20KLF	TT Electronics/BI	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Round 0.250" Dia	ROHS3
3329P-1-203LF	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Round 0.250" Dia	ROHS3
3362H-1-203	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Rectangular 0.275" x 0.260"	Non-compliant
3362H-1-203LF	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Rectangular 0.275" x 0.260"	ROHS3
3362P-1-203	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Rectangular 0.275" x 0.260"	Non-compliant
3362P-1-203LF	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Rectangular 0.275" x 0.260"	ROHS3
3362P-1-203RLF	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Rectangular 0.275" x 0.260"	ROHS3
3362R-1-203LF	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Rectangular 0.275" x 0.260"	ROHS3
3386F-1-203	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Square 0.375" x 0.375"	Non-compliant
3386F-1-203LF	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Square 0.375" x 0.375"	ROHS3
3386G-1-203LF	Bourns Inc.	20 kΩ	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Square 0.375" x 0.375"	ROHS3

Engineering Selection Recommendations

All listed substitute parts maintain electrical equivalence to the 82PR20KLF across resistance, power rating, tolerance, temperature coefficient, and adjustment characteristics. Selection among substitutes should prioritize ROHS3 compliance status for regulatory alignment. The 3329P-1-203LF maintains identical round form factor (0.250" diameter) to the original part, making it the direct geometric equivalent. Bourns Trimpot 3362 series parts (3362H-1-203LF, 3362P-1-203LF, 3362P-1-203RLF, 3362R-1-203LF) offer rectangular form factors (0.275" x 0.260") with ROHS3 compliance and represent high-volume availability options. Bourns Trimpot 3386 series parts (3386F-1-203LF, 3386G-1-203LF) provide square form factors (0.375" x 0.375") with ROHS3 compliance. Parts designated with non-compliant RoHS status (3362H-1-203, 3362P-1-203, 3386F-1-203) are functionally equivalent but may not meet regulatory requirements for new designs. Packaging format selection (tube, cut tape, bulk) depends on procurement and assembly workflow requirements and does not affect electrical performance.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 82PR20KLF with any of the listed Bourns parts?

A: Yes, all listed Bourns parts are electrically equivalent. Substitution is valid when the mounting footprint accommodates the physical form factor. The 3329P-1-203LF maintains the same round geometry; 3362 series parts use rectangular geometry; 3386 series parts use square geometry. Verify PCB layout compatibility before selection.

Q: What is the difference between parts with "LF" suffix and those without?

A: The "LF" suffix indicates lead-free termination, which is required for ROHS3 compliance. Parts without the "LF" designation use traditional lead-based termination and are marked as RoHS non-compliant. For new designs, specify parts with the "LF" suffix.

Q: Are there any electrical performance differences between the round, rectangular, and square form factors?

A: No. All form factors maintain identical electrical specifications: 20 kOhms resistance, 0.5W power rating, ±10% tolerance, and ±100ppm/°C temperature coefficient. Form factor selection is determined solely by available PCB space and mounting hole layout.

Q: What packaging options are available?

A: Substitute parts are available in Tube, Cut Tape (CT), and Bulk packaging. Packaging format does not affect component performance and should be selected based on assembly process requirements and order quantity.

Q: Which substitute part has the highest inventory availability?

A: The 3362P-1-203LF offers the highest stock level at 65,600 pieces, followed by 3362H-1-203LF at 1,294 pieces. Inventory levels should be confirmed with the supplier for current availability.

Q: Can I use a non-compliant RoHS part as a substitute?

A: Functionally, yes. However, parts marked as RoHS non-compliant (3362H-1-203, 3362P-1-203, 3386F-1-203) may not meet regulatory requirements for products subject to ROHS3 directives. Use ROHS3-compliant alternatives for new designs and regulated applications.

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