TC86F-1-101 Equivalent & Substitute Parts

Part Overview

The TC86F-1-101 is a 100 Ohm, 0.3W through-hole trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® TC86 series. This component features cermet resistive material, PC pin termination, and top adjustment capability with a single turn. The TC86F-1-101 is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

TC86F-1-101

Bourns Inc.In Stock: 948TC86F-1-101 Datasheet

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3306F-1-101

Bourns Inc.In Stock: 29603306F-1-101 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TC86F-1-101 is determined by the following critical parameters:

• Resistance value: 100 Ohms (exact match required)
• Adjustment type: Top Adjustment (functional requirement)
• Mounting type: Through Hole with PC Pins (mechanical compatibility)
• Resistive material: Cermet (performance characteristic)
• Number of turns: 1 (operational specification)
• Temperature coefficient: ±250ppm/°C (thermal stability)

The 3306F-1-101 meets these core substitution criteria. While the power rating differs (0.2W versus 0.3W), the 3306F-1-101 maintains electrical and mechanical compatibility for applications within its specified power envelope. The tolerance specification widens from ±20% to ±25%, which represents a measurable but acceptable deviation for general trimmer potentiometer applications.

Parameter Comparison

Engineering Selection Recommendations

The 3306F-1-101 is the designated substitute for the obsolete TC86F-1-101. Selection of this substitute is supported by the following factors:

• Both components are manufactured by Bourns Inc., ensuring consistent design philosophy and quality standards
• Active product status of the 3306F-1-101 ensures long-term availability and supply chain continuity
• Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements
• Electrical parameters (resistance, temperature coefficient, adjustment type) are identical
• Mechanical compatibility is maintained through identical PC pin termination and through-hole mounting
• The 3306F-1-101 is available in higher inventory quantities (2900 Pcs), supporting production requirements

The primary design consideration is the reduced power rating (0.2W versus 0.3W). This substitution is valid only for applications where the circuit dissipation does not exceed 0.2W at the trimmer potentiometer element.

Frequently Asked Questions (FAQ)

Q: Can the 3306F-1-101 be used as a direct replacement for the TC86F-1-101?

A: The 3306F-1-101 is electrically and mechanically compatible with the TC86F-1-101 for applications operating within the 0.2W power envelope. Verify that your circuit design does not require the higher 0.3W power rating of the original component.

Q: What is the difference in tolerance between these parts?

A: The TC86F-1-101 specifies ±20% tolerance, while the 3306F-1-101 specifies ±25% tolerance. Both tolerances are typical for cermet trimmer potentiometers. Confirm that your circuit design can accommodate the wider tolerance of the substitute part.

Q: Are there physical size differences between these components?

A: Yes. The TC86F-1-101 measures 0.303" x 0.268" (7.70mm x 6.80mm), while the 3306F-1-101 measures 0.319" x 0.268" (8.10mm x 6.80mm). The substitute is slightly wider. Verify PCB layout clearance before substitution.

Q: Do both parts have the same temperature coefficient?

A: Yes. Both the TC86F-1-101 and 3306F-1-101 specify a temperature coefficient of ±250ppm/°C, ensuring equivalent thermal stability across the operating temperature range.

Q: What is the primary reason for substitution?

A: The TC86F-1-101 is obsolete. The 3306F-1-101 is an active product with equivalent electrical characteristics and superior supply availability, making it the appropriate substitute for design continuity and production support.