TC86K-1-102 Equivalent & Substitute Parts

Part Overview

The TC86K-1-102 is a 1 kOhms trimmer potentiometer manufactured by Bourns Inc., rated at 0.3W with PC pin termination for through-hole mounting. This component features cermet resistive material, side adjustment capability, and 1-turn operation. The product is currently obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

TC86K-1-102

Bourns Inc.In Stock: 755TC86K-1-102 Datasheet

Current PartRFQ

3306K-1-102

Bourns Inc.In Stock: 13203306K-1-102 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC86K-1-102 is determined by the following critical parameters:

• Resistance value: 1 kOhms (exact match required)
• Adjustment type: Side Adjustment (functional requirement)
• Resistive material: Cermet (performance characteristic)
• Mounting type: Through Hole (mechanical requirement)
• Termination style: PC Pins (board interface requirement)
• Number of turns: 1 (operational specification)
• Temperature coefficient: ±250ppm/°C (thermal stability)

The 3306K-1-102 meets all core substitution criteria. While power rating differs (0.2W versus 0.3W), tolerance specification varies (±25% versus ±20%), and physical dimensions differ slightly, these parameters remain within acceptable substitution boundaries for equivalent functional performance in legacy applications.

Parameter Comparison

Engineering Selection Recommendations

The 3306K-1-102 is the designated substitute for the obsolete TC86K-1-102. Both components are manufactured by Bourns Inc. and maintain identical core electrical specifications: 1 kOhms resistance, 1-turn side adjustment, cermet construction, and ±250ppm/°C temperature coefficient.

The 3306K-1-102 carries Active product status, ensuring continued availability and supply chain reliability. Both parts maintain ROHS3 compliance and MSL Level 1 rating, supporting equivalent environmental and moisture handling requirements.

Physical dimensions differ marginally (7.70mm x 6.80mm versus 6.81mm x 8.10mm), requiring PCB layout verification during substitution. Power rating reduction from 0.3W to 0.2W and tolerance widening from ±20% to ±25% must be evaluated against circuit design margins and application thermal conditions.

Frequently Asked Questions (FAQ)

Q: Can the 3306K-1-102 directly replace the TC86K-1-102 on existing PCBs?

A: Direct mechanical replacement requires PCB layout verification. The 3306K-1-102 dimensions (6.81mm x 8.10mm) differ from the TC86K-1-102 (7.70mm x 6.80mm). Pad spacing and mounting hole alignment must be confirmed before substitution.

Q: What is the impact of the power rating difference (0.3W to 0.2W)?

A: The 3306K-1-102 operates at 0.2W (1/5W) versus the original 0.3W specification. Circuit design must ensure actual power dissipation remains below 0.2W under maximum operating conditions. Thermal analysis of the application is required.

Q: Does the tolerance change from ±20% to ±25% affect circuit performance?

A: The wider ±25% tolerance of the 3306K-1-102 introduces greater resistance variation. Applications with tight tolerance requirements must evaluate whether the expanded tolerance range remains acceptable for circuit function and performance specifications.

Q: Are both parts RoHS and REACH compliant?

A: Both TC86K-1-102 and 3306K-1-102 are ROHS3 compliant and REACH unaffected. Environmental and regulatory compliance requirements are equivalent.

Q: Why is the TC86K-1-102 obsolete?

A: The TC86K-1-102 is classified as obsolete. The 3306K-1-102 from the active Trimpot® 3306 series represents the current production equivalent for this resistance and power rating combination.