Bourns 3362R-1-502 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 3362R-1-502 is a 5 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination, top adjustment, and cermet resistive material. This sealed Trimpot® 3362 series component is designed for precision adjustment applications in electronic circuits. The part is currently active in production with 774 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications and compatible mechanical parameters to support component sourcing flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Resistance	5 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 3362R-1-502 is determined by strict equivalence across the following critical parameters: resistance value (5 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 identified substitute parts match these electrical and functional specifications. Mechanical variations in package dimensions and form factors are noted but do not preclude functional substitution when physical space constraints are not limiting factors. Packaging format (tube vs. bulk) and RoHS compliance status are secondary considerations that may influence procurement decisions based on application requirements and regulatory mandates.

Parameter Comparison

Part Number	Manufacturer	Resistance	Power (W)	Tolerance	Temp Coeff	Turns	Adjustment	Material	Mount Type	Termination	Size/Dimension	RoHS Status	Inventory
3362R-1-502	Bourns Inc.	5 kOhms	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Rectangular 0.275" x 0.260" (6.99mm x 6.60mm)	Non-compliant	774 Pcs
3362R-1-502LF	Bourns Inc.	5 kOhms	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Rectangular 0.275" x 0.260" (6.99mm x 6.60mm)	ROHS3 Compliant	1189 Pcs
25PR5KLF	TT Electronics/BI	5 kOhms	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Square 0.270" x 0.270" (6.86mm x 6.86mm)	RoHS Compliant	9327 Pcs
72PMR5KLF	TT Electronics/BI	5 kOhms	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Square 0.375" x 0.375" (9.53mm x 9.53mm)	ROHS3 Compliant	4800 Pcs
72PR5KLF	TT Electronics/BI	5 kOhms	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Square 0.375" x 0.375" (9.53mm x 9.53mm)	ROHS3 Compliant	1817 Pcs
82PR5KLF	TT Electronics/BI	5 kOhms	0.5	±10%	±100ppm/°C	1	Top	Cermet	Through Hole	PC Pins	Round 0.250" Dia (6.35mm)	ROHS3 Compliant	2596 Pcs

Engineering Selection Recommendations

The 3362R-1-502LF is the direct equivalent of the 3362R-1-502, maintaining identical electrical specifications and mechanical dimensions while offering ROHS3 compliance. This part is preferred for applications subject to RoHS regulations and represents the same Bourns Trimpot® 3362 sealed series with higher inventory availability (1189 units).

The TT Electronics/BI alternatives (25PR5KLF, 72PMR5KLF, 72PR5KLF, 82PR5KLF) provide functional equivalence with all critical electrical parameters matched. These parts differ in physical form factor and package dimensions. Selection among these alternatives depends on available printed circuit board space and mechanical mounting constraints. All TT Electronics/BI substitutes carry ROHS3 compliance status.

For applications where RoHS compliance is mandatory, the 3362R-1-502LF or any TT Electronics/BI substitute is appropriate. For legacy systems without RoHS requirements, the original 3362R-1-502 remains available.

Frequently Asked Questions (FAQ)

Q: Can the 3362R-1-502LF be used as a direct replacement for the 3362R-1-502?

A: Yes. The 3362R-1-502LF is electrically and mechanically identical to the 3362R-1-502, with the primary difference being ROHS3 compliance status. Both parts share the same Bourns Trimpot® 3362 series designation, identical resistance (5 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), and physical dimensions (rectangular 0.275" x 0.260" face).

Q: What are the physical differences between the Bourns and TT Electronics/BI substitutes?

A: The Bourns 3362R series maintains a rectangular form factor (0.275" x 0.260"). The TT Electronics/BI 25PR5KLF uses a square form factor (0.270" x 0.270"), while the 72PMR5KLF and 72PR5KLF use a larger square form factor (0.375" x 0.375"). The 82PR5KLF uses a round form factor with 0.250" diameter. These dimensional variations require verification against available PCB space before substitution.

Q: Are all substitute parts functionally equivalent in electrical performance?

A: Yes. All listed substitute parts match the critical electrical specifications: 5 kOhms resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn, top adjustment, cermet resistive material, through-hole mounting, and PC pin termination. Functional performance in the circuit is equivalent across all parts.

Q: What packaging formats are available?

A: The Bourns 3362R-1-502 and 3362R-1-502LF are supplied in tube packaging. The TT Electronics/BI alternatives (25PR5KLF, 72PMR5KLF, 72PR5KLF, 82PR5KLF) are supplied in bulk packaging. Packaging format selection depends on assembly process requirements and inventory management practices.

Q: Which substitute offers the best inventory availability?

A: The 25PR5KLF (TT Electronics/BI, 25 series) offers the highest inventory level at 9327 units, followed by 72PMR5KLF at 4800 units. The 3362R-1-502LF (Bourns direct equivalent) has 1189 units available.

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