Bourns 3386M-1-202 Trimmer Potentiometer: Equivalent & Substitute Parts

Part Overview

The Bourns 3386M-1-202 is a 2 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3386 series component features cermet resistive material and is designed for precision circuit tuning applications. The part is currently active in production. Equivalent and substitute parts may be required due to inventory availability, packaging preferences, compliance requirements, or specific mechanical constraints in board layout.

Substiute Parts

3386M-1-202

Bourns Inc.In Stock: 10103386M-1-202 Datasheet

Current PartRFQ

25PR2KLF

TT Electronics/BIIn Stock: 560825PR2KLF Datasheet

SimilarRFQ

72PR2KLF

TT Electronics/BIIn Stock: 142172PR2KLF Datasheet

SimilarRFQ

82PR2KLF

TT Electronics / BI TechnologiesIn Stock: 209082PR2KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3386M-1-202 is determined by matching the following critical parameters: 2 kOhm resistance value, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, single-turn adjustment, top adjustment type, cermet resistive material, through-hole mounting, and PC pin termination. All three substitute parts (25PR2KLF, 72PR2KLF, 82PR2KLF) meet these core electrical and functional specifications. Mechanical differences exist in package size and form factor, which may affect board layout compatibility. Compliance and packaging variations are secondary considerations that depend on application requirements.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts satisfy the core electrical and functional requirements of the 3386M-1-202. Selection should be based on the following factors:

25PR2KLF (TT Electronics/BI): This part is electrically equivalent and offers RoHS compliance with REACH unaffected status. The smaller square form factor (0.270" x 0.270") requires verification of board layout compatibility. Tube packaging matches the original part's packaging format.

72PR2KLF (TT Electronics/BI): This part maintains identical dimensions to the 3386M-1-202 (0.375" x 0.375" square) and provides ROHS3 compliance with REACH unaffected status. Bulk packaging differs from the original tube packaging. This option is suitable when mechanical fit is a primary constraint.

82PR2KLF (TT Electronics/BI): This part provides ROHS3 compliance and REACH unaffected status but features a round form factor (0.250" diameter) that differs significantly from the original square package. Board layout compatibility must be confirmed before selection.

All substitute parts carry active product status and are available in production quantities.

Frequently Asked Questions (FAQ)

Q: Can the 25PR2KLF be used as a direct replacement for the 3386M-1-202? A: The 25PR2KLF is electrically equivalent and functionally compatible. However, its smaller square footprint (0.270" x 0.270" versus 0.375" x 0.375") requires board layout verification to ensure mechanical fit within the mounting area.

Q: What is the primary difference between the 72PR2KLF and 82PR2KLF? A: Both parts are electrically identical to the 3386M-1-202. The 72PR2KLF maintains the original square form factor (0.375" x 0.375"), while the 82PR2KLF uses a round form factor (0.250" diameter). Form factor selection depends on available board space and mounting hole configuration.

Q: Does the 3386M-1-202 have RoHS compliance? A: No, the 3386M-1-202 is RoHS non-compliant and REACH affected. All three substitute parts (25PR2KLF, 72PR2KLF, 82PR2KLF) offer RoHS compliance and REACH unaffected status.

Q: Are there packaging differences between the substitute parts? A: Yes. The 25PR2KLF is supplied in tube packaging, matching the original part. The 72PR2KLF and 82PR2KLF are supplied in bulk packaging, which may affect handling and inventory management procedures.

Q: What electrical parameters must remain constant for substitution? A: The following parameters must match: 2 kOhm resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, single-turn adjustment, top adjustment type, cermet resistive material, through-hole mounting, and PC pin termination.