Equivalent & Substitute Parts for 3059P-1-502

Part Overview

The 3059P-1-502 is a 5 kOhm, 1W chassis mount trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® 3059 Sealed series. This component features cermet resistive material, side adjustment capability, and PC pin termination for through-hole mounting applications. The part maintains active product status and is available in tube packaging with 703 units in current inventory.

Equivalent and substitute parts are identified to address component availability, compliance requirements, or specific application constraints while maintaining functional compatibility within the defined electrical and mechanical parameters.

Key Parameters

Parameter	Value
Resistance	5 kOhms
Power Rating	1W
Tolerance	±10%
Temperature Coefficient	±100ppm/°C
Number of Turns	22
Adjustment Type	Side Adjustment
Resistive Material	Cermet
Termination Style	PC Pins
Mounting Type	Chassis Mount

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: resistance value (5 kOhms), power rating (1W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (22), adjustment type (side adjustment), resistive material (cermet), and termination style (PC pins).

The 3059P-1-502 has two identified substitutes:

Direct Substitute (3059P-1-502LF): Identical electrical specifications and series designation. Differs only in RoHS compliance status (ROHS3 compliant versus non-compliant) and packaging format (tube). Mounting type remains chassis mount with identical physical dimensions.

Similar Substitute (78PR5KLF): Matches all critical electrical parameters and termination style. Differs in manufacturer (TT Electronics/BI), series designation (78 series), mounting type (through hole versus chassis mount), physical dimensions (1.250" x 0.195" face versus 0.315" x 0.190" face), packaging format (bulk), and REACH compliance status (unaffected versus affected).

Parameter Comparison

Parameter	3059P-1-502	3059P-1-502LF	78PR5KLF
Manufacturer	Bourns Inc.	Bourns Inc.	TT Electronics/BI
Series	Trimpot® 3059 - Sealed	Trimpot® 3059 - Sealed	78
Resistance	5 kOhms	5 kOhms	5 kOhms
Power Rating	1W	1W	1W
Tolerance	±10%	±10%	±10%
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C
Number of Turns	22	22	22
Adjustment Type	Side Adjustment	Side Adjustment	Side Adjustment
Resistive Material	Cermet	Cermet	Cermet
Termination Style	PC Pins	PC Pins	PC Pins
Mounting Type	Chassis Mount	Chassis Mount	Through Hole
Size / Dimension	0.315" x 0.190" (8.00mm x 4.83mm)	0.315" x 0.190" (8.00mm x 4.83mm)	1.250" x 0.195" (31.75mm x 4.95mm)
Packaging	Tube	Tube	Bulk
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Affected	REACH Affected	REACH Unaffected
Product Status	Active	Active	Active
Inventory	703 Pcs	1036 Pcs	1531 Pcs

Engineering Selection Recommendations

3059P-1-502LF is the primary direct substitute. It maintains identical electrical specifications, series designation, and physical dimensions. Selection of this part is appropriate when RoHS3 compliance is required or when ROHS3-compliant inventory is preferred. Both parts share REACH Affected status.

78PR5KLF is a functional equivalent for applications where mounting type flexibility exists. This part is suitable when through-hole mounting is acceptable and when REACH Unaffected status is required. The larger physical dimensions (1.250" x 0.195" face) must be verified against PCB layout constraints. Selection of this part requires confirmation that the increased footprint does not conflict with circuit board design.

All three parts maintain active product status and are currently in stock. Selection should prioritize compliance requirements and physical mounting constraints specific to the application.

Frequently Asked Questions (FAQ)

Q: Can 3059P-1-502LF be used as a direct replacement for 3059P-1-502?

A: Yes. Both parts are identical in electrical specifications, series designation, physical dimensions, and mounting type. The primary difference is RoHS compliance status. 3059P-1-502LF is ROHS3 compliant while 3059P-1-502 is non-compliant.

Q: What are the key differences between 3059P-1-502 and 78PR5KLF?

A: Electrical specifications and termination style are identical. Differences include: manufacturer (Bourns Inc. versus TT Electronics/BI), series designation (Trimpot® 3059 versus 78), mounting type (chassis mount versus through hole), physical dimensions (0.315" x 0.190" versus 1.250" x 0.195" face), packaging format (tube versus bulk), and REACH compliance status (affected versus unaffected).

Q: Is 78PR5KLF suitable for applications requiring chassis mount configuration?

A: No. 78PR5KLF is specified as through-hole mounting. Chassis mount applications require either 3059P-1-502 or 3059P-1-502LF.

Q: What compliance considerations apply to these parts?

A: 3059P-1-502 is RoHS non-compliant and REACH Affected. 3059P-1-502LF is ROHS3 compliant and REACH Affected. 78PR5KLF is ROHS3 compliant and REACH Unaffected. Selection should align with application compliance requirements.

Q: Are physical dimensions interchangeable between these parts?

A: No. 3059P-1-502 and 3059P-1-502LF share identical dimensions (0.315" x 0.190" face). 78PR5KLF has larger dimensions (1.250" x 0.195" face) and requires PCB layout verification before substitution.

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