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TE Connectivity 1-1623838-0 Trimmer Potentiometer Equivalent & Substitute Parts
Part Overview
The TE Connectivity 1-1623838-0 is a 10 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination, side adjustment, and cermet resistive material. This component is classified as Active product status. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, mounting characteristics, and termination styles align with the original part, enabling direct replacement in circuit applications without functional degradation.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 10 kOhms |
| Power Rating | 0.5W (1/2W) |
| Tolerance | ±10% |
| Temperature Coefficient | ±250ppm/°C |
| Number of Turns | 1 |
| Adjustment Type | Side Adjustment |
| Resistive Material | Cermet |
| Mounting Type | Through Hole |
| Termination Style | PC Pins |
| Size | Square - 0.374" x 0.374" (9.50mm x 9.50mm) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by matching the following critical parameters across all candidate parts:
Electrical Parameters:
- Resistance value: 10 kOhms
- Power rating: 0.5W (1/2W)
- Tolerance: ±10%
- Number of turns: 1
Mechanical & Functional Parameters:
- Adjustment type: Side Adjustment
- Resistive material: Cermet
- Mounting type: Through Hole
- Termination style: PC Pins
- Physical size: Square format approximately 0.375" x 0.375" (9.53mm x 9.53mm)
All substitute parts listed meet these core criteria. Variations in temperature coefficient, RoHS compliance status, and REACH classification are noted but do not disqualify substitution eligibility. Packaging format (Tube vs. Bulk) and inventory availability are operational considerations independent of functional equivalence.
Parameter Comparison
| Part Number | Manufacturer | Resistance | Power (W) | Tolerance | Temp. Coeff. (ppm/°C) | Turns | Adjustment | Material | Mount Type | Termination | Size (Face) | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1-1623838-0 | TE Connectivity | 10k | 0.5 | ±10% | ±250 | 1 | Side | Cermet | Through Hole | PC Pins | 0.374" (9.50mm) | ROHS3 |
| 3386B-1-103LF | Bourns Inc. | 10k | 0.5 | ±10% | ±100 | 1 | Side | Cermet | Through Hole | PC Pins | 0.375" (9.53mm) | ROHS3 |
| 3386C-1-103LF | Bourns Inc. | 10k | 0.5 | ±10% | ±100 | 1 | Side | Cermet | Through Hole | PC Pins | 0.375" (9.53mm) | ROHS3 |
| 3386H-1-103 | Bourns Inc. | 10k | 0.5 | ±10% | ±100 | 1 | Side | Cermet | Through Hole | PC Pins | 0.375" (9.53mm) | Non-compliant |
| 3386H-1-103LF | Bourns Inc. | 10k | 0.5 | ±10% | ±100 | 1 | Side | Cermet | Through Hole | PC Pins | 0.375" (9.53mm) | ROHS3 |
| 3386S-1-103LF | Bourns Inc. | 10k | 0.5 | ±10% | ±100 | 1 | Side | Cermet | Through Hole | PC Pins | 0.375" (9.53mm) | ROHS3 |
| 3386W-1-103 | Bourns Inc. | 10k | 0.5 | ±10% | ±100 | 1 | Side | Cermet | Through Hole | PC Pins | 0.375" (9.53mm) | Non-compliant |
| 3386W-1-103LF | Bourns Inc. | 10k | 0.5 | ±10% | ±100 | 1 | Side | Cermet | Through Hole | PC Pins | 0.375" (9.53mm) | ROHS3 |
| 3386X-1-103LF | Bourns Inc. | 10k | 0.5 | ±10% | ±100 | 1 | Side | Cermet | Through Hole | PC Pins | 0.375" (9.53mm) | ROHS3 |
| 72XR10KLF | TT Electronics / BI Technologies | 10k | 0.5 | ±10% | ±100 | 1 | Side | Cermet | Through Hole | PC Pins | 0.375" (9.53mm) | ROHS3 |
Engineering Selection Recommendations
ROHS3 Compliant Substitutes (Preferred for Regulated Applications):
The following parts maintain ROHS3 compliance matching the original TE Connectivity 1-1623838-0:
- Bourns 3386B-1-103LF
- Bourns 3386C-1-103LF
- Bourns 3386H-1-103LF
- Bourns 3386S-1-103LF
- Bourns 3386W-1-103LF
- Bourns 3386X-1-103LF
- TT Electronics 72XR10KLF
These parts are suitable for applications requiring regulatory compliance with RoHS Directive 3 requirements.
Non-Compliant Alternatives (Legacy or Unrestricted Applications):
The following parts do not maintain ROHS3 compliance:
- Bourns 3386H-1-103
- Bourns 3386W-1-103
These parts are functionally equivalent but carry RoHS non-compliance status and REACH Affected classification. Selection of these parts is appropriate only when regulatory restrictions do not apply.
Temperature Coefficient Consideration:
The original TE Connectivity part specifies ±250ppm/°C temperature coefficient. All Bourns Trimpot 3386 series and TT Electronics 72 series substitutes specify ±100ppm/°C, representing improved temperature stability. This difference does not prevent substitution but indicates enhanced performance in temperature-sensitive applications.
Frequently Asked Questions (FAQ)
Q: Can Bourns 3386 series trimmer potentiometers directly replace the TE Connectivity 1-1623838-0?
A: Yes. All Bourns 3386 series variants listed (3386B-1-103LF, 3386C-1-103LF, 3386H-1-103LF, 3386S-1-103LF, 3386W-1-103LF, 3386X-1-103LF) meet the electrical and mechanical specifications of the original part. Physical dimensions are nominally equivalent (0.375" vs. 0.374" face dimension represents standard manufacturing tolerance). PC pin termination, through-hole mounting, and side adjustment functionality are identical.
Q: What is the difference between 3386H-1-103 and 3386H-1-103LF?
A: The suffix "LF" indicates lead-free termination and ROHS3 compliance. The 3386H-1-103 (without LF suffix) is RoHS non-compliant. Both are functionally equivalent in electrical and mechanical performance. Selection depends on regulatory requirements of the application.
Q: Is the TT Electronics 72XR10KLF equivalent to the TE Connectivity original part?
A: Yes. The 72XR10KLF meets all electrical specifications (10 kOhm, 0.5W, ±10% tolerance, 1 turn, side adjustment, cermet material) and mechanical requirements (through-hole, PC pins, square format). It is ROHS3 compliant and REACH unaffected. Packaging is supplied in Bulk format rather than Tube.
Q: Why do substitute parts show ±100ppm/°C temperature coefficient while the original shows ±250ppm/°C?
A: Temperature coefficient specification reflects the resistive element performance characteristics of different product families. The ±100ppm/°C specification of substitute parts indicates tighter temperature stability. This does not prevent substitution; it represents a performance improvement in temperature-dependent applications.
Q: Are there any physical dimension incompatibilities between the original and substitute parts?
A: No. The original TE Connectivity part specifies 0.374" x 0.374" face dimension (9.50mm x 9.50mm). Substitute parts specify 0.375" x 0.375" (9.53mm x 9.53mm). This 0.03mm difference per side falls within standard PCB pad tolerance and component mounting clearance specifications for through-hole applications.
Q: What packaging formats are available for these substitute parts?
A: Bourns 3386 series parts are supplied in Tube packaging. TT Electronics 72XR10KLF is supplied in Bulk packaging. Packaging format does not affect functional equivalence but may impact procurement quantity requirements and handling procedures.
Q: Can non-ROHS3 compliant parts (3386H-1-103, 3386W-1-103) be used in new designs?
A: Non-compliant parts are functionally equivalent but carry regulatory restrictions. Use is limited to applications where RoHS compliance is not mandated. For new designs subject to RoHS Directive 3 requirements, ROHS3 compliant alternatives must be selected.
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