TC89P-1-103 Equivalent & Substitute Parts

Part Overview

The TC89P-1-103 is a 10 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® TC89 Open Frame series. This component features cermet resistive material, PC pin termination, and top adjustment capability with a single turn design. The part is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement.

Substiute Parts

TC89P-1-103

Bourns Inc.In Stock: 1128TC89P-1-103 Datasheet

Current PartRFQ

409HA103M

TE Connectivity Passive ProductIn Stock: 894409HA103M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC89P-1-103 is determined by the following critical parameters:

• Electrical Specifications: Resistance value (10 kOhms), power rating (0.5W), tolerance (±20%), and temperature coefficient (±250ppm/°C) must match exactly
• Physical Form Factor: Through-hole mounting with PC pin termination and rectangular dimensions (11.50mm x 8.80mm) are required for PCB compatibility
• Material Composition: Cermet resistive material ensures performance characteristics consistent with the original design
• Adjustment Configuration: Single-turn design with adjustment capability (top or top/bottom) maintains functional equivalence
• Compliance Standards: RoHS3 compliance and MSL rating of 1 ensure environmental and handling compatibility

The TE Connectivity 409HA103M meets all critical substitution criteria while offering active product status and extended availability.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 409HA103M (Citec 409 series) is a direct functional equivalent for the obsolete TC89P-1-103. Both components share identical electrical specifications, physical dimensions, and compliance certifications. The primary distinction is adjustment capability: the TC89P-1-103 provides top adjustment only, while the 409HA103M offers both top and bottom adjustment. This expanded adjustment range does not compromise compatibility and provides additional operational flexibility.

The 409HA103M maintains active product status with confirmed inventory availability (785 pcs), ensuring reliable procurement for replacement and new applications. Both parts carry ROHS3 compliance and MSL rating 1, meeting current environmental and handling standards.

Frequently Asked Questions (FAQ)

Q: Can the 409HA103M directly replace the TC89P-1-103 in existing designs?

A: Yes. Both components share identical resistance (10 kOhms), power rating (0.5W), tolerance (±20%), temperature coefficient (±250ppm/°C), physical dimensions (11.50mm x 8.80mm), and termination style (PC pins through-hole). The 409HA103M's dual adjustment capability (top and bottom) is functionally compatible with applications requiring top adjustment only.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution requires matching resistance value, power rating, tolerance, temperature coefficient, number of turns, resistive material (cermet), mounting type (through-hole), termination style (PC pins), and physical dimensions. Compliance certifications (RoHS3, MSL rating) must also align.

Q: Does the difference in adjustment type affect PCB layout or circuit performance?

A: No. Both components use identical PC pin termination and rectangular form factor (11.50mm x 8.80mm). The adjustment mechanism difference does not impact electrical performance or board-level compatibility.

Q: Are there any compliance or environmental concerns with substitution?

A: Both the TC89P-1-103 and 409HA103M are ROHS3 compliant with MSL rating 1 (unlimited moisture sensitivity level). No compliance barriers exist for substitution.

Q: Why is the TC89P-1-103 classified as obsolete?

A: Obsolescence reflects manufacturer discontinuation. The 409HA103M provides equivalent functionality with active product status and ongoing availability.