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3386F-1-102LF Trimmer Potentiometer Equivalent & Substitute Parts
Part Overview
The Bourns 3386F-1-102LF is a 1 kOhm, 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 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the 3386F-1-102LF are grouped based on strict parameter matching across electrical and mechanical specifications. The primary substitution criteria are:
- Resistance value: 1 kOhms
- Power rating: 0.5W (1/2W)
- Tolerance: ±10%
- Temperature coefficient: ±100ppm/°C
- Number of turns: 1 turn
- Resistive material: Cermet
- Mounting type: Through hole
- Termination style: PC pins
- Regulatory compliance: ROHS3 or RoHS compliant
Substitute parts are classified into two groups: direct equivalents with identical adjustment type (top adjustment) and compatible alternatives with different adjustment types (side adjustment) or packaging configurations. Physical dimensions and adjustment mechanism may vary while maintaining functional equivalence.
Parameter Comparison
| Part Number | Manufacturer | Resistance | Power (W) | Tolerance | Temp Coeff | Turns | Material | Adjustment | Termination | RoHS Status | Packaging |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3386F-1-102LF | Bourns Inc. | 1 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Cermet | Top | PC Pins | ROHS3 | Tube |
| 25PR1KLF | TT Electronics/BI | 1 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Cermet | Top | PC Pins | RoHS | Tube |
| 72PR1KLF | TT Electronics/BI | 1 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Cermet | Top | PC Pins | ROHS3 | Bulk |
| 72PMR1KLF | TT Electronics/BI | 1 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Cermet | Top | PC Pins | ROHS3 | Bulk |
| 82PR1KLF | TT Electronics/BI | 1 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Cermet | Top | PC Pins | ROHS3 | Bulk |
| M63P102KB40 | Vishay Spectrol | 1 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Cermet | Side | PC Pins | ROHS3 | Bulk |
Engineering Selection Recommendations
All listed substitute parts maintain electrical equivalence to the 3386F-1-102LF across resistance, power rating, tolerance, and temperature coefficient specifications. Selection among substitutes should be based on the following criteria:
Top Adjustment Equivalents (Direct Functional Replacement): The 25PR1KLF, 72PR1KLF, and 72PMR1KLF maintain identical adjustment mechanism (top adjustment) to the primary part. These are suitable for direct substitution in applications where adjustment access from the top surface is required. All three parts are ROHS3 or RoHS compliant and meet regulatory requirements.
Side Adjustment Alternative: The M63P102KB40 provides electrical equivalence but features side adjustment instead of top adjustment. This part is suitable only for applications where side-mounted adjustment access is acceptable or preferred. MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions.
Packaging Considerations: The 3386F-1-102LF is supplied in tube packaging. Substitute parts 25PR1KLF is also tube-packaged. Parts 72PR1KLF, 72PMR1KLF, and M63P102KB40 are supplied in bulk packaging, which may affect procurement and handling procedures.
Frequently Asked Questions (FAQ)
Q: Can the 25PR1KLF directly replace the 3386F-1-102LF? A: Yes. The 25PR1KLF matches all electrical parameters (1 kOhm, 0.5W, ±10% tolerance, ±100ppm/°C) and maintains top adjustment with PC pin termination. Both are RoHS compliant. The primary difference is physical size: 25PR1KLF has a 0.270" square face versus 0.375" for the 3386F-1-102LF.
Q: What is the difference between 72PR1KLF and 72PMR1KLF? A: Both parts are electrically identical and share the same 0.375" square face dimension. The primary difference is packaging: 72PR1KLF is supplied in bulk, while 72PMR1KLF is also bulk-packaged. Both are ROHS3 compliant and suitable for top adjustment applications.
Q: Can M63P102KB40 be used in place of the 3386F-1-102LF? A: The M63P102KB40 is electrically equivalent but features side adjustment instead of top adjustment. It is suitable only if the application design accommodates side-mounted adjustment access. Physical dimensions also differ: 0.395" square face versus 0.375" for the primary part.
Q: Are all substitute parts ROHS3 compliant? A: The 3386F-1-102LF, 72PR1KLF, 72PMR1KLF, 82PR1KLF, and M63P102KB40 are ROHS3 compliant. The 25PR1KLF is RoHS compliant. Both certifications meet regulatory requirements for this component category.
Q: Does packaging affect electrical performance? A: No. Tube and bulk packaging do not affect electrical specifications or performance. Packaging selection is based on procurement volume, handling procedures, and inventory management requirements.
Q: What is the significance of the 82PR1KLF round form factor? A: The 82PR1KLF maintains all electrical equivalence but features a round 0.250" diameter form factor instead of square. It is suitable for applications where circular mounting geometry is required or preferred, while maintaining identical electrical performance and top adjustment mechanism.
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