TC86W-1-202 Equivalent & Substitute Parts

Part Overview

The TC86W-1-202 is a 2 kOhms, 0.3W through-hole trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® TC86 series. This component features cermet resistive material, side adjustment, and PC pin termination for through-hole mounting applications. The TC86W-1-202 is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component procurement.

Substiute Parts

TC86W-1-202

Bourns Inc.In Stock: 793TC86W-1-202 Datasheet

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3306W-1-202

Bourns Inc.In Stock: 40773306W-1-202 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC86W-1-202 is determined by the following critical parameters:

• Resistance value: 2 kOhms (exact match required)
• Adjustment type: Side Adjustment (functional requirement)
• Mounting type: Through Hole (PCB compatibility requirement)
• Termination style: PC Pins (electrical connection requirement)
• Resistive material: Cermet (performance and stability requirement)
• Number of turns: 1 (adjustment range requirement)
• Temperature coefficient: ±250ppm/°C (thermal stability requirement)

The 3306W-1-202 meets all critical substitution criteria. While power rating and tolerance differ slightly, these variations remain within acceptable operational parameters for equivalent component selection.

Parameter Comparison

Engineering Selection Recommendations

The 3306W-1-202 is the primary equivalent substitute for the obsolete TC86W-1-202. Both components are manufactured by Bourns Inc. and share identical resistance, temperature coefficient, adjustment type, and termination characteristics. The 3306W-1-202 maintains active product status, ensuring continued availability and supply chain reliability.

Key considerations for substitution:

• Power rating reduction from 0.3W to 0.2W requires verification that circuit power dissipation does not exceed 0.2W at maximum operating conditions
• Tolerance increase from ±20% to ±25% may impact circuit performance in applications requiring tighter resistance accuracy
• Dimensional variation (0.303" x 0.268" versus 0.268" x 0.319") requires PCB layout verification to confirm mechanical fit within allocated space
• Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating

Frequently Asked Questions (FAQ)

Q: Can the 3306W-1-202 directly replace the TC86W-1-202 without PCB modification?

A: Direct replacement requires verification of two factors: (1) PCB layout space accommodates the 3306W-1-202 dimensions (0.268" x 0.319" versus 0.303" x 0.268"), and (2) circuit power dissipation does not exceed the 0.2W rating of the substitute part.

Q: What is the significance of the power rating difference between these components?

A: The TC86W-1-202 is rated for 0.3W continuous operation, while the 3306W-1-202 is rated for 0.2W. Applications must ensure that actual power dissipation (calculated as I²R or V²/R) remains below 0.2W to prevent component degradation.

Q: Are there compliance differences between the TC86W-1-202 and 3306W-1-202?

A: Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Compliance status is equivalent for both parts.

Q: How does the tolerance difference affect circuit performance?

A: The TC86W-1-202 tolerance of ±20% versus the 3306W-1-202 tolerance of ±25% represents a 5% wider tolerance band on the substitute. Applications requiring resistance accuracy tighter than ±25% may experience performance variation with the substitute component.

Q: What dimensional considerations apply to PCB layout?

A: The TC86W-1-202 face dimensions are 0.303" x 0.268" (7.70mm x 6.80mm), while the 3306W-1-202 measures 0.268" x 0.319" (6.81mm x 8.10mm). Although overall area is similar, the aspect ratio differs. PCB footprint and surrounding component placement must be verified for mechanical clearance.