TC89P-1-101 Equivalent & Substitute Parts

Part Overview

The TC89P-1-101 is a 100 Ohm, 0.5W trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® TC89 series. This through-hole component features PC pin termination, cermet resistive material, and top adjustment capability. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

TC89P-1-101

Bourns Inc.In Stock: 732TC89P-1-101 Datasheet

Current PartRFQ

409HA101M

TE Connectivity Passive ProductIn Stock: 1271409HA101M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC89P-1-101 is determined by strict equivalence across the following critical parameters:

• Resistance value: 100 Ohms
• Power rating: 0.5W minimum
• Tolerance: ±20%
• Temperature coefficient: ±250ppm/°C
• Resistive material: Cermet
• Mounting type: Through Hole
• Termination style: PC Pins
• Physical footprint: 0.453" x 0.346" rectangular face

The TE Connectivity 409HA101M meets all electrical and mechanical requirements for direct substitution. While this part offers both top and bottom adjustment capability compared to the TC89P-1-101's top-only adjustment, this represents an enhancement rather than a limitation, as the additional adjustment access does not compromise compatibility with existing designs.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 409HA101M is a direct functional equivalent to the TC89P-1-101 for applications requiring a 100 Ohm, 0.5W cermet trimmer potentiometer with through-hole PC pin termination. The substitute part maintains all critical electrical specifications and physical compatibility while offering active product status and continued manufacturing support.

The 409HA101M provides dual adjustment access (top and bottom) compared to the TC89P-1-101's single top adjustment. This enhanced feature does not introduce incompatibility and may provide operational advantages in applications where bottom-side access is beneficial.

Both parts comply with RoHS3 requirements and carry MSL 1 (Unlimited) moisture sensitivity classification, ensuring equivalent environmental performance in standard storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can the 409HA101M directly replace the TC89P-1-101 in existing circuit designs?

A: Yes. The 409HA101M meets all electrical and mechanical specifications of the TC89P-1-101, including resistance value, power rating, tolerance, temperature coefficient, and physical footprint. PCB layout and component placement require no modification.

Q: What is the significance of the dual adjustment capability on the 409HA101M?

A: The 409HA101M provides adjustment access from both top and bottom surfaces, whereas the TC89P-1-101 provides top adjustment only. This does not affect electrical performance or compatibility; it represents an additional feature that may simplify assembly or maintenance procedures depending on application requirements.

Q: Are there compliance or certification differences between these parts?

A: Both parts carry RoHS3 compliance and MSL 1 classification. The TC89P-1-101 includes REACH Unaffected status; the 409HA101M lists RoHS status as Not applicable. Both are classified under ECCN EAR99 and HTSUS 8533.40.8050.

Q: Why is the TC89P-1-101 marked as obsolete?

A: Obsolete status indicates the part is no longer in active production by Bourns Inc. The 409HA101M, maintained in active production by TE Connectivity, provides functional continuity for designs requiring this component specification.

Q: Are there any physical installation differences?

A: No. Both parts share identical rectangular dimensions (0.453" x 0.346" face, 11.50mm x 8.80mm) and through-hole PC pin termination, ensuring identical PCB mounting and spacing requirements.