82PR100KLF Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The 82PR100KLF is a 100 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 identified based on matching electrical specifications, mechanical form factors, and regulatory compliance requirements.

Key Parameters

Parameter	Value
Resistance	100 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
Size	Round - 0.250" Dia (6.35mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across electrical and mechanical parameters. All substitute parts must match the following criteria:

Resistance value: 100 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 parts are grouped by form factor compatibility. The 82PR100KLF uses a round 0.250" diameter package. Bourns Trimpot® 3329 series parts maintain this round form factor and are direct mechanical equivalents. Bourns Trimpot® 3386 series parts use a larger square 0.375" x 0.375" form factor and Nidec CT6 series uses a square 0.276" x 0.276" form factor; these represent alternative form factors with identical electrical specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Power (W)	Tolerance	Temp Coeff (ppm/°C)	Turns	Adjustment	Material	Mounting	Termination	Size / Dimension	RoHS Status	Inventory (Pcs)
82PR100KLF	TT Electronics/BI	100 kOhms	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	Round - 0.250" Dia (6.35mm)	ROHS3 Compliant	876
3329H-1-104LF	Bourns Inc.	100 kOhms	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	Round - 0.250" Dia (6.35mm)	ROHS3 Compliant	4704
3329P-1-104LF	Bourns Inc.	100 kOhms	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	Round - 0.250" Dia (6.35mm)	ROHS3 Compliant	3200
3386F-1-104LF	Bourns Inc.	100 kOhms	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	Square - 0.375" x 0.375" Face (9.53mm x 9.53mm)	ROHS3 Compliant	1767
3386G-1-104LF	Bourns Inc.	100 kOhms	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	Square - 0.375" x 0.375" Face (9.53mm x 9.53mm)	ROHS3 Compliant	790
3386P-1-104LF	Bourns Inc.	100 kOhms	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	Square - 0.375" x 0.375" Face (9.53mm x 9.53mm)	ROHS3 Compliant	20100
3386R-1-104LF	Bourns Inc.	100 kOhms	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	Square - 0.375" x 0.375" Face (9.53mm x 9.53mm)	ROHS3 Compliant	1045
CT-6EP104	Nidec Components Corporation	100 kOhms	0.5	±10%	±100	1	Top	Cermet	Through Hole	PC Pins	Square - 0.276" x 0.276" Face (7.00mm x 7.00mm)	ROHS3 Compliant	31282

Engineering Selection Recommendations

All listed substitute parts meet the electrical specifications of the 82PR100KLF and maintain ROHS3 compliance. Selection between substitutes depends on form factor requirements and PCB layout constraints.

For direct mechanical replacement with identical round form factor (0.250" diameter), the Bourns Trimpot® 3329 series—specifically 3329H-1-104LF and 3329P-1-104LF—are preferred. Both parts are ROHS3 compliant and maintain the same footprint as the original 82PR100KLF.

For applications where form factor flexibility exists, the Bourns Trimpot® 3386 series (3386F-1-104LF, 3386G-1-104LF, 3386P-1-104LF, 3386R-1-104LF) provides larger square packages (0.375" x 0.375") with higher inventory availability. The 3386P-1-104LF variant offers the highest stock level at 20,100 units.

The Nidec CT-6EP104 provides a compact square alternative (0.276" x 0.276") with the highest inventory availability at 31,282 units and is suitable for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 82PR100KLF with a Bourns 3386 series trimmer potentiometer?

A: Yes, electrically the 3386 series is fully equivalent. However, the 3386 uses a square 0.375" x 0.375" form factor compared to the 82PR100KLF's round 0.250" diameter package. PCB layout and mounting hole patterns must be verified for compatibility.

Q: What is the difference between 3329H-1-104LF and 3329P-1-104LF?

A: Both parts are electrically identical 100 kOhms, 0.5W cermet trimmers with identical round form factors and ROHS3 compliance. The difference lies in the base product series designation (3329H versus 3329P). Both are suitable direct replacements for the 82PR100KLF.

Q: Is the Nidec CT-6EP104 a direct replacement for the 82PR100KLF?

A: The CT-6EP104 is electrically equivalent but uses a different form factor—a compact square 0.276" x 0.276" package versus the 82PR100KLF's round 0.250" diameter. PCB layout compatibility must be confirmed before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts carry ROHS3 compliance status, matching the regulatory requirement of the original 82PR100KLF.

Q: Which substitute offers the best inventory availability?

A: The Nidec CT-6EP104 provides the highest stock level at 31,282 units. Among Bourns alternatives, the 3386P-1-104LF offers 20,100 units in inventory.

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