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3386Y-1-103 Equivalent & Substitute Parts
Part Overview
The Bourns 3386Y-1-103 is a 10 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3386 series component is actively produced and widely used in circuit calibration and tuning applications. Substitute parts are necessary when the primary part is unavailable, when packaging requirements differ, or when compliance certifications must be updated for specific applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 10 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 |
| Size | Square - 0.375" x 0.375" (9.53mm x 9.53mm) |
Substitute Part Grouping Explanation
Substitution eligibility for the 3386Y-1-103 is determined by matching the following critical parameters: resistance value (10 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1), resistive material (Cermet), mounting type (through hole), and termination style (PC pins). Adjustment type and physical dimensions are secondary considerations that may vary depending on application constraints. All listed substitute parts maintain electrical equivalence across these core parameters while differing in packaging, physical form factor, or compliance certifications.
Parameter Comparison
| Part Number | Manufacturer | Resistance | Power (W) | Tolerance | Temp Coeff | Turns | Adjustment | Material | Mount Type | Termination | Size | Packaging | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3386Y-1-103 | Bourns Inc. | 10 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Top | Cermet | Through Hole | PC Pins | Square 9.53mm | Tube | Non-compliant |
| 25PR10KLF | TT Electronics/BI | 10 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Top | Cermet | Through Hole | PC Pins | Square 6.86mm | Tube | Compliant |
| 72PMR10KLF | TT Electronics/BI | 10 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Top | Cermet | Through Hole | PC Pins | Square 9.53mm | Bulk | ROHS3 Compliant |
| 82MR10KLF | TT Electronics/BI | 10 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Top | Cermet | Through Hole | PC Pins | Round 6.35mm | Bulk | ROHS3 Compliant |
| 82PR10KLF | TT Electronics/BI | 10 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Top | Cermet | Through Hole | PC Pins | Round 6.35mm | Bulk | ROHS3 Compliant |
| 82PR10KLFTB | TT Electronics / BI Technologies | 10 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Top | Cermet | Through Hole | PC Pins | Round 6.35mm | Tube | ROHS3 Compliant |
| M63P103KB40 | Vishay Spectrol | 10 kOhms | 0.5 | ±10% | ±100ppm/°C | 1 | Side | Cermet | Through Hole | PC Pins | Square 10.03mm | Bulk | ROHS3 Compliant |
Engineering Selection Recommendations
All substitute parts listed maintain electrical equivalence to the 3386Y-1-103 across resistance, power rating, tolerance, temperature coefficient, and resistive material specifications. Selection among substitutes depends on specific application requirements:
For RoHS3 compliance requirements: 72PMR10KLF, 82MR10KLF, 82PR10KLF, 82PR10KLFTB, and M63P103KB40 all meet ROHS3 compliance standards, whereas the primary 3386Y-1-103 is RoHS non-compliant.
For packaging format: 25PR10KLF, 82PR10KLFTB, and the primary 3386Y-1-103 are supplied in tube packaging. 72PMR10KLF, 82MR10KLF, 82PR10KLF, and M63P103KB40 are supplied in bulk packaging.
For physical form factor: 72PMR10KLF maintains the square 9.53mm footprint of the primary part. 82MR10KLF and 82PR10KLF use a smaller round 6.35mm form factor. 25PR10KLF uses a smaller square 6.86mm form factor. M63P103KB40 uses a slightly larger square 10.03mm footprint and features side adjustment rather than top adjustment.
For adjustment accessibility: M63P103KB40 differs in providing side adjustment instead of top adjustment, which may affect circuit board layout and accessibility requirements.
Frequently Asked Questions (FAQ)
Q: Can 82MR10KLF replace 3386Y-1-103 in my circuit? A: Yes, electrically. Both parts share identical resistance (10 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), and resistive material (Cermet). The primary differences are physical form factor (round 6.35mm versus square 9.53mm) and packaging (bulk versus tube). Verify that your PCB layout accommodates the smaller round footprint.
Q: What is the difference between 82PR10KLF and 82PR10KLFTB? A: Both parts are electrically identical with the same resistance, power rating, tolerance, and temperature coefficient. The difference is packaging: 82PR10KLF is supplied in bulk, while 82PR10KLFTB is supplied in tube format. Both meet ROHS3 compliance.
Q: Is M63P103KB40 a direct replacement for 3386Y-1-103? A: M63P103KB40 is electrically equivalent but differs in two ways: it features side adjustment instead of top adjustment, and its physical dimensions are slightly larger (10.03mm square versus 9.53mm square). Verify that your application can accommodate side adjustment and the larger footprint.
Q: Why would I choose 25PR10KLF over other substitutes? A: 25PR10KLF is the smallest substitute option (6.86mm square footprint) while maintaining tube packaging and RoHS compliance. Select this part if space constraints are critical and you require tube packaging format.
Q: Are all substitute parts REACH compliant? A: All substitute parts listed are REACH Unaffected. The primary 3386Y-1-103 is REACH Affected. Verify REACH compliance requirements for your specific application.
Q: Can I use bulk-packaged substitutes instead of tube-packaged parts? A: Yes, from an electrical and functional standpoint. Bulk packaging is suitable for high-volume manufacturing and automated assembly. Tube packaging is typically preferred for lower-volume applications or manual assembly. Verify your procurement and assembly process requirements.
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