TC89P-1-501 Equivalent & Substitute Parts Reference

Part Overview

The TC89P-1-501 is a 500 Ohm, 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 (1.0 turn) design. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and legacy system support where original stock is depleted.

Substiute Parts

TC89P-1-501

Bourns Inc.In Stock: 891TC89P-1-501 Datasheet

Current PartRFQ

409HA501M

TE Connectivity Passive ProductIn Stock: 940409HA501M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC89P-1-501 is determined by strict equivalence across the following critical parameters:

• Resistance value: 500 Ohms (exact match required)
• Power rating: 0.5W minimum
• Tolerance: ±20% or better
• Temperature coefficient: ±250ppm/°C or better
• Number of turns: 1.0 turn (single turn)
• Resistive material: Cermet
• Mounting type: Through hole
• Termination style: PC pins
• Physical dimensions: Rectangular 11.50mm x 8.80mm face
• Environmental compliance: ROHS3 compliant minimum

The TE Connectivity Passive Product 409HA501M meets all core electrical and mechanical substitution criteria. While this part offers enhanced adjustment capability (top and bottom adjustment versus top-only), the primary functional parameters remain equivalent, and the physical footprint and mounting characteristics are identical.

Parameter Comparison

Engineering Selection Recommendations

The 409HA501M from TE Connectivity Passive Product (Citec series) qualifies as a direct functional substitute for the obsolete TC89P-1-501. Both components share identical electrical specifications (500 Ohms, 0.5W, ±20% tolerance, ±250ppm/°C temperature coefficient) and mechanical characteristics (through-hole PC pin termination, 11.50mm x 8.80mm rectangular form factor, single-turn design).

The 409HA501M maintains active product status with current manufacturing availability (862 pcs in stock), whereas the TC89P-1-501 is obsolete. Both parts meet ROHS3 compliance requirements and carry MSL rating 1 (unlimited moisture sensitivity level), ensuring equivalent environmental and regulatory suitability.

The primary functional difference is adjustment capability: the 409HA501M provides both top and bottom adjustment access, compared to the TC89P-1-501's top-only adjustment. This enhanced feature does not compromise backward compatibility and may provide operational advantages in applications requiring bidirectional trimming access.

Frequently Asked Questions (FAQ)

Q: Can the 409HA501M directly replace the TC89P-1-501 in existing circuit boards?

A: Yes. Both components share identical electrical parameters (500 Ohms, 0.5W, ±20% tolerance, ±250ppm/°C), identical physical dimensions (11.50mm x 8.80mm), and identical termination style (PC pins through-hole). The footprint and mounting characteristics are fully compatible.

Q: What is the significance of the adjustment type difference (top-only versus top and bottom)?

A: The TC89P-1-501 provides adjustment access from the top surface only. The 409HA501M provides adjustment access from both top and bottom surfaces. This difference does not affect electrical performance or circuit compatibility. The enhanced adjustment capability of the 409HA501M is a superset feature that maintains full backward compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the TC89P-1-501 and 409HA501M are ROHS3 compliant and carry MSL rating 1 (unlimited), meeting equivalent environmental and regulatory standards.

Q: Why is the TC89P-1-501 classified as obsolete?

A: The TC89P-1-501 is no longer in active production by Bourns Inc. The 409HA501M represents the current active alternative from TE Connectivity with equivalent electrical and mechanical specifications.

Q: Are there any tolerance or temperature coefficient differences between these parts?

A: No. Both components specify ±20% tolerance and ±250ppm/°C temperature coefficient, ensuring equivalent performance characteristics across operating temperature ranges.