TC86W-1-104 Equivalent & Substitute Parts

Part Overview

The TC86W-1-104 is a 100 kOhms trimmer potentiometer manufactured by Bourns Inc., part of the Trimpot® TC86 series. This through-hole component features PC pin termination, side adjustment, and cermet resistive material rated for 0.3W operation. The TC86W-1-104 is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and production continuity.

Substiute Parts

TC86W-1-104

Bourns Inc.In Stock: 1115TC86W-1-104 Datasheet

Current PartRFQ

3306W-1-104

Bourns Inc.In Stock: 24983306W-1-104 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TC86W-1-104 is based on the following critical parameters that must remain consistent:

• Resistance value: 100 kOhms (exact match required)
• Adjustment type: Side Adjustment (functional requirement)
• Resistive material: Cermet (performance characteristic)
• Mounting type: Through Hole (PCB compatibility)
• Termination style: PC Pins (connection method)
• Temperature coefficient: ±250ppm/°C (thermal stability)
• Number of turns: 1 (adjustment range)

The 3306W-1-104 qualifies as a substitute based on matching all critical parameters. Differences in power rating (0.2W vs. 0.3W) and tolerance (±25% vs. ±20%) represent acceptable variations within the allowed electrical and mechanical specifications for this product category. Physical dimensions show minor variation but remain compatible with standard through-hole PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

The 3306W-1-104 serves as the active production substitute for the obsolete TC86W-1-104. Both components are manufactured by Bourns Inc. and maintain identical compliance certifications (ROHS3, REACH Unaffected, EAR99 classification). The substitute part is currently in active production status with confirmed inventory availability.

Selection of the 3306W-1-104 is appropriate for applications where the 0.2W power rating meets circuit requirements. The lower power specification represents a design constraint that must be evaluated against actual circuit dissipation. Both parts share identical temperature coefficient performance and cermet resistive material characteristics, ensuring equivalent thermal stability and long-term reliability.

Physical dimension differences are minor and compatible with standard through-hole PCB footprints. The tolerance variance (±25% vs. ±20%) is acceptable for general trimmer potentiometer applications where fine adjustment capability is the primary functional requirement.

Frequently Asked Questions (FAQ)

Q: Can the 3306W-1-104 directly replace the TC86W-1-104 in existing designs?

A: Yes, provided the circuit power dissipation does not exceed 0.2W. The 3306W-1-104 maintains all critical functional parameters: 100 kOhms resistance, 1-turn side adjustment, cermet material, through-hole mounting, and PC pin termination. Physical dimensions are compatible with standard PCB layouts.

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

A: The power rating indicates maximum continuous dissipation capability. The TC86W-1-104 is rated for 0.3W while the 3306W-1-104 is rated for 0.2W. Circuit designs must ensure actual power dissipation remains within the substitute part's 0.2W specification. This is determined by applied voltage and circuit resistance values.

Q: Are there compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical EAR99 ECCN classification. Moisture sensitivity level is 1 (unlimited) for both components, indicating no special handling requirements.

Q: How do tolerance specifications affect substitution?

A: The TC86W-1-104 specifies ±20% tolerance while the 3306W-1-104 specifies ±25%. Both tolerances are typical for cermet trimmer potentiometers. Applications requiring tighter tolerance control must evaluate whether the ±25% specification of the substitute part is acceptable for the intended circuit function.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: The TC86W-1-104 measures 0.303" x 0.268" (7.70mm x 6.80mm) while the 3306W-1-104 measures 0.268" x 0.319" (6.81mm x 8.10mm). Both are rectangular through-hole components with PC pin termination. Dimension differences are minor and typically compatible with standard trimmer potentiometer footprints, though PCB layout verification is recommended.

Q: Why is the TC86W-1-104 listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The 3306W-1-104 represents the current production equivalent from Bourns Inc., with confirmed inventory availability and active manufacturing support.