TC86P-1-202 Equivalent & Substitute Parts

Part Overview

The TC86P-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, top adjustment, and PC pin termination for through-hole mounting applications. The TC86P-1-202 is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and production continuity.

Substiute Parts

TC86P-1-202

Bourns Inc.In Stock: 1189TC86P-1-202 Datasheet

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3306P-1-202

Bourns Inc.In Stock: 39313306P-1-202 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TC86P-1-202 is based on the following critical parameters that must remain consistent:

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

The 3306P-1-202 meets these core substitution criteria. Variations in power rating, tolerance, physical dimensions, and product status are secondary considerations that must be evaluated within the context of the specific application circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The 3306P-1-202 is the primary substitute for the obsolete TC86P-1-202. Both components are manufactured by Bourns Inc. and share identical core electrical characteristics: 2 kOhms resistance, ±250ppm/°C temperature coefficient, 1-turn top adjustment, cermet resistive material, and through-hole PC pin termination.

The 3306P-1-202 is currently in active production status, ensuring long-term availability and supply chain continuity. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) ratings, supporting equivalent environmental and regulatory requirements.

Key differences exist in power rating (0.3W versus 0.2W) and tolerance specification (±20% versus ±25%). The 3306P-1-202 has a marginally larger face dimension (0.319" versus 0.303" width), which must be verified against PCB layout constraints. These differences require evaluation within the specific application circuit to determine functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 3306P-1-202 directly replace the TC86P-1-202 in existing designs?

A: Direct replacement is possible when the application circuit operates within the 3306P-1-202 power rating of 0.2W and can tolerate the ±25% tolerance specification. PCB layout must accommodate the slightly larger face dimension (0.319" width versus 0.303"). Electrical performance remains equivalent for the core resistance, temperature coefficient, and adjustment characteristics.

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

A: The TC86P-1-202 is rated for 0.3W while the 3306P-1-202 is rated for 0.2W. This difference affects maximum allowable current and power dissipation. Applications requiring power dissipation above 0.2W must retain the original TC86P-1-202 specification or identify alternative components with higher power ratings.

Q: How do tolerance differences affect circuit performance?

A: The TC86P-1-202 specifies ±20% tolerance while the 3306P-1-202 specifies ±25% tolerance. This 5% difference in tolerance band may impact circuit accuracy in precision applications. Circuits designed with the tighter ±20% tolerance must be re-evaluated if substituting with the ±25% tolerance component.

Q: Are there physical mounting considerations for the 3306P-1-202?

A: The 3306P-1-202 has a face dimension of 0.319" x 0.268" compared to the TC86P-1-202 at 0.303" x 0.268". The 0.016" width increase must be verified against PCB layout, component spacing, and mechanical clearance requirements. Through-hole mounting and PC pin termination remain identical.

Q: What compliance certifications apply to both components?

A: Both the TC86P-1-202 and 3306P-1-202 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Regulatory and environmental requirements are equivalent between the two components.