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Equivalent & Substitute Parts for 3386T-1-102
Part Overview
The Bourns 3386T-1-102 is a 1 kOhms, 0.5W through-hole trimmer potentiometer with cermet resistive material, top adjustment, and PC pin termination. This component is classified as Active product status. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and functional performance within the allowed parameter tolerances for this trimmer potentiometer category.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 1 kOhms |
| Power Rating | 0.5W (1/2W) |
| Tolerance | ±10% |
| Temperature Coefficient | ±100ppm/°C |
| Number of Turns | 1 |
| Resistive Material | Cermet |
| Mounting Type | Through Hole |
| Termination Style | PC Pins |
Substitute Part Grouping Explanation
Substitute parts for the 3386T-1-102 are qualified based on the following critical parameters:
- Resistance value: 1 kOhms
- Power rating: 0.5W (1/2W)
- Tolerance: ±10%
- Temperature coefficient: ±100ppm/°C
- Number of turns: 1
- Resistive material: Cermet
- Mounting type: Through Hole
- Termination style: PC Pins
Substitutes are grouped into two categories: direct functional equivalents with identical adjustment type (top adjustment) and mechanical variants with different adjustment types or form factors. All listed substitutes maintain electrical equivalence within the specified parameter range.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Power (Watts) | Tolerance | Temperature Coefficient | Number of Turns | Adjustment Type | Resistive Material | Mounting Type | Termination Style | Size / Dimension | RoHS Status | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3386T-1-102 | Bourns Inc. | 1 kOhms | 0.5W | ±10% | ±100ppm/°C | 1 | Top Adjustment | Cermet | Through Hole | PC Pins | Square - 0.375" x 0.375" (9.53mm x 9.53mm) | RoHS non-compliant | Active |
| 25PR1KLF | TT Electronics/BI | 1 kOhms | 0.5W | ±10% | ±100ppm/°C | 1 | Top Adjustment | Cermet | Through Hole | PC Pins | Square - 0.270" x 0.270" (6.86mm x 6.86mm) | RoHS Compliant | Active |
| 72PMR1KLF | TT Electronics/BI | 1 kOhms | 0.5W | ±10% | ±100ppm/°C | 1 | Top Adjustment | Cermet | Through Hole | PC Pins | Square - 0.375" x 0.375" (9.53mm x 9.53mm) | ROHS3 Compliant | Active |
| 72PR1KLF | TT Electronics/BI | 1 kOhms | 0.5W | ±10% | ±100ppm/°C | 1 | Top Adjustment | Cermet | Through Hole | PC Pins | Square - 0.375" x 0.375" (9.53mm x 9.53mm) | ROHS3 Compliant | Active |
| 82PR1KLF | TT Electronics/BI | 1 kOhms | 0.5W | ±10% | ±100ppm/°C | 1 | Top Adjustment | Cermet | Through Hole | PC Pins | Round - 0.250" Dia (6.35mm) | ROHS3 Compliant | Active |
| M63P102KB40 | Vishay Spectrol | 1 kOhms | 0.5W | ±10% | ±100ppm/°C | 1 | Side Adjustment | Cermet | Through Hole | PC Pins | Square - 0.395" x 0.395" (10.03mm x 10.03mm) | ROHS3 Compliant | Active |
Engineering Selection Recommendations
All substitute parts listed maintain electrical equivalence to the 3386T-1-102 across resistance, power rating, tolerance, and temperature coefficient specifications. Selection between substitutes depends on specific application requirements:
Direct Mechanical Equivalents (Identical Form Factor): The 72PMR1KLF and 72PR1KLF offer identical square 0.375" x 0.375" (9.53mm x 9.53mm) dimensions with top adjustment, matching the original part's footprint. Both are ROHS3 Compliant, providing improved regulatory compliance compared to the non-compliant 3386T-1-102.
Compact Alternative: The 25PR1KLF provides a smaller square footprint of 0.270" x 0.270" (6.86mm x 6.86mm) while maintaining all electrical parameters and top adjustment functionality. This option is suitable for space-constrained applications and is RoHS Compliant.
Alternate Form Factor: The 82PR1KLF features a round 0.250" diameter form factor with top adjustment, offering a different mechanical profile while preserving electrical specifications. This option is ROHS3 Compliant.
Adjustment Type Variant: The M63P102KB40 provides side adjustment instead of top adjustment with a square 0.395" x 0.395" (10.03mm x 10.03mm) footprint. This part is electrically equivalent but requires different mechanical integration due to adjustment orientation and is ROHS3 Compliant.
Frequently Asked Questions (FAQ)
Q: Can 25PR1KLF replace 3386T-1-102 in a PCB layout? A: The 25PR1KLF is electrically equivalent but has a smaller footprint (0.270" x 0.270" versus 0.375" x 0.375"). PCB layout compatibility depends on available space and pad positioning. Verify mechanical clearance before substitution.
Q: What is the difference between 72PMR1KLF and 72PR1KLF? A: Both parts are identical in electrical specifications, adjustment type (top), and form factor (0.375" x 0.375" square). The primary difference is packaging: 72PMR1KLF is supplied in Bulk, while 72PR1KLF is also supplied in Bulk. Both are ROHS3 Compliant.
Q: Why is M63P102KB40 listed as a substitute if it has side adjustment instead of top adjustment? A: M63P102KB40 is electrically equivalent across all critical parameters (resistance, power, tolerance, temperature coefficient, turns, material, mounting, and termination). The side adjustment variant is functionally equivalent but requires different mechanical integration and operator access considerations.
Q: Are all substitute parts RoHS compliant? A: The 3386T-1-102 is RoHS non-compliant. All listed substitutes (25PR1KLF, 72PMR1KLF, 72PR1KLF, 82PR1KLF, and M63P102KB40) are either RoHS Compliant or ROHS3 Compliant, providing improved regulatory alignment for new designs.
Q: Can I use 82PR1KLF as a direct replacement for 3386T-1-102? A: The 82PR1KLF is electrically equivalent and maintains top adjustment functionality. However, its round 0.250" diameter form factor differs from the original square 0.375" x 0.375" footprint. Mechanical compatibility depends on PCB layout and mounting hole positioning.
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