TC86F-1-504 Equivalent & Substitute Parts

Part Overview

The TC86F-1-504 is a 500 kOhms trimmer potentiometer manufactured by Bourns Inc., part of the Trimpot® TC86 series. This through-hole component features PC pin termination, cermet resistive material, and top adjustment capability with 1 turn operation. The part is rated for 0.3W power dissipation with ±20% tolerance and ±250ppm/°C temperature coefficient.

The TC86F-1-504 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this model is no longer procurable.

Substiute Parts

TC86F-1-504

Bourns Inc.In Stock: 759TC86F-1-504 Datasheet

Current PartRFQ

3306F-1-504

Bourns Inc.In Stock: 32153306F-1-504 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC86F-1-504 is determined by the following critical parameters:

• Resistance value: 500 kOhms (exact match required)
• Resistive material: Cermet (maintains performance characteristics)
• Mounting type: Through Hole (PCB integration compatibility)
• Termination style: PC Pins (board connection method)
• Adjustment type: Top Adjustment (user interface consistency)
• Number of turns: 1 (operational consistency)
• Temperature coefficient: ±250ppm/°C (thermal stability requirement)

The 3306F-1-504 meets all critical substitution criteria. While the power rating differs (0.2W versus 0.3W), the 3306F-1-504 operates within the same electrical and mechanical framework, with identical resistance, material composition, mounting configuration, and thermal characteristics. The substitute part is currently in active production status, ensuring long-term availability.

Parameter Comparison

Engineering Selection Recommendations

The 3306F-1-504 is the qualified substitute for the obsolete TC86F-1-504. Both components are manufactured by Bourns Inc. and maintain identical electrical specifications for resistance, temperature coefficient, and tolerance performance. Both parts are ROHS3 compliant and carry MSL rating 1, ensuring equivalent environmental and regulatory compliance.

The 3306F-1-504 is currently in active production status, providing assured long-term component availability. The substitute part is suitable for direct replacement in applications where the TC86F-1-504 is no longer procurable. The minor dimensional difference (0.319" versus 0.303" width) and power rating reduction (0.2W versus 0.3W) do not affect functional substitution in standard trimmer potentiometer applications.

Frequently Asked Questions (FAQ)

Q: Can the 3306F-1-504 directly replace the TC86F-1-504 in existing designs?

A: Yes. Both parts share identical resistance (500 kOhms), temperature coefficient (±250ppm/°C), adjustment type (top adjustment), mounting configuration (through hole PC pins), and resistive material (cermet). The substitute part is functionally equivalent for trimmer potentiometer applications.

Q: What is the significance of the power rating difference (0.3W versus 0.2W)?

A: The TC86F-1-504 is rated for 0.3W dissipation, while the 3306F-1-504 is rated for 0.2W. In applications where power dissipation remains below 0.2W, the substitute part operates within specification. Applications requiring power dissipation between 0.2W and 0.3W must be evaluated against actual circuit requirements.

Q: Are there dimensional compatibility concerns?

A: The 3306F-1-504 is slightly wider (0.319" versus 0.303"). Both parts maintain identical height (0.268") and use PC pin termination. PCB layout must accommodate the increased width. The through-hole mounting configuration remains compatible.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TC86F-1-504 and 3306F-1-504 are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity level). Regulatory and environmental compliance is equivalent.

Q: Why is the TC86F-1-504 obsolete?

A: The TC86F-1-504 is classified as obsolete by the manufacturer. The 3306F-1-504, part of the active Trimpot® 3306 series, represents the current production equivalent within the Bourns trimmer potentiometer portfolio.