TC89P-1-504 Equivalent & Substitute Parts Reference

Part Overview

The TC89P-1-504 is a 500 kOhms trimmer potentiometer manufactured by Bourns Inc., rated at 0.5W with PC pin termination for through-hole mounting. This component features cermet resistive material, single-turn top adjustment, and rectangular form factor (11.50mm x 8.80mm). The part is currently obsolete, making identification of functionally equivalent alternatives essential for design continuity and procurement planning.

Substiute Parts

TC89P-1-504

Bourns Inc.In Stock: 1020TC89P-1-504 Datasheet

Current PartRFQ

409HA504M

TE Connectivity Passive ProductIn Stock: 925409HA504M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC89P-1-504 is determined by strict alignment across the following critical parameters:

• Resistance value: 500 kOhms (exact match required)
• Power rating: 0.5W minimum
• Tolerance: ±20% or tighter
• Temperature coefficient: ±250ppm/°C or better
• Number of turns: 1 turn
• Resistive material: Cermet
• Mounting type: Through hole
• Termination style: PC pins
• Physical dimensions: Rectangular 11.50mm x 8.80mm
• Compliance: ROHS3 compliant

The 409HA504M from TE Connectivity Passive Product meets all substitution criteria. While this part offers top and bottom adjustment capability (versus top-only on the original), the core electrical and mechanical specifications remain compatible for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The 409HA504M qualifies as a direct functional equivalent to the TC89P-1-504 based on electrical performance, mechanical compatibility, and regulatory compliance. Both components meet ROHS3 requirements and share identical electrical specifications across resistance, power rating, tolerance, and temperature coefficient.

The primary distinction is product status: the TC89P-1-504 is obsolete, while the 409HA504M remains in active production. This status difference supports the 409HA504M as the preferred selection for new designs and ongoing procurement requirements.

The adjustment mechanism difference (top-only versus top and bottom) does not affect electrical performance or mechanical fit. Component selection should be based on application requirements and PCB layout constraints.

Frequently Asked Questions (FAQ)

Q: Can the 409HA504M replace the TC89P-1-504 in existing designs?

A: Yes. Both components share identical electrical specifications (500 kOhms, 0.5W, ±20% tolerance, ±250ppm/°C), cermet resistive material, through-hole PC pin termination, and physical dimensions (11.50mm x 8.80mm). The 409HA504M is mechanically and electrically compatible for direct substitution.

Q: What is the significance of the adjustment type difference?

A: The TC89P-1-504 features top adjustment only, while the 409HA504M offers both top and bottom adjustment. This difference does not affect electrical performance or mechanical mounting. The additional adjustment access on the 409HA504M provides operational flexibility without compromising compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the TC89P-1-504 and 409HA504M are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: Why is the TC89P-1-504 marked as obsolete?

A: Obsolescence indicates the part is no longer manufactured by Bourns Inc. The 409HA504M from TE Connectivity Passive Product provides functional continuity for applications requiring 500 kOhms trimmer potentiometers with identical electrical and mechanical specifications.

Q: Are there any compliance differences between the two parts?

A: Both components are ROHS3 compliant and share the same ECCN (EAR99) and HTSUS (8533.40.8050) classifications. The 409HA504M REACH status is listed as vendor undefined, while the TC89P-1-504 is REACH unaffected. This distinction does not impact substitution eligibility for most applications.