Honeywell 43C110K Potentiometer - Equivalent & Substitute Parts

Part Overview

The Honeywell 43C110K is a 10k Ohm, 2-watt wirewound linear potentiometer designed for panel mount applications with solder lug termination. This component features a 1-gang configuration with 300° rotation and a round actuator measuring 2.000" in length and 0.250" in diameter.

The 43C110K carries an Obsolete product status. Locating equivalent substitute components is necessary for applications requiring continued supply, maintenance, or redesign of legacy systems utilizing this potentiometer.

Substiute Parts

43C110K

Honeywell Sensing and Productivity SolutionsIn Stock: 83743C110K Datasheet

Current PartRFQ

CU1031E

OhmiteIn Stock: 1172CU1031E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the Honeywell 43C110K is determined by the following critical parameters:

Electrical Compatibility:

• Resistance value: 10k Ohm
• Power rating: 2W minimum
• Taper characteristic: Linear
• Single-gang configuration

Mechanical Compatibility:

• Termination: Solder lug
• Panel mount configuration
• Actuator dimensions: 2.000" length, 0.250" diameter
• Bushing thread: 3/8-32

Functional Compatibility:

• User-defined adjustment type
• Round actuator type
• No integrated switch

The Ohmite CU1031E satisfies these core substitution criteria. While the resistive material differs (carbon versus wirewound), both components deliver the required 2W power rating at 10k Ohm resistance with identical mechanical interfaces and electrical taper characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Ohmite CU1031E serves as a direct functional substitute for the obsolete Honeywell 43C110K potentiometer. Both components share identical electrical ratings (10k Ohm, 2W, linear taper) and mechanical interfaces (panel mount, 3/8-32 bushing thread, matching actuator dimensions).

The CU1031E maintains Active product status with current manufacturing availability, addressing the supply constraint imposed by the 43C110K's Obsolete designation. Both components carry RoHS compliance certifications appropriate for modern manufacturing environments.

The primary electrical difference is tolerance specification: the 43C110K provides ±5% tolerance while the CU1031E specifies ±10% tolerance. The secondary difference is resistive material composition: wirewound versus carbon construction. These differences do not affect mechanical interchangeability or basic functional performance in standard potentiometer applications.

The CU1031E rotation specification of 312° represents a minor deviation from the 43C110K's 300° rotation, within acceptable operational parameters for linear taper potentiometer applications.

Frequently Asked Questions (FAQ)

Q: Can the Ohmite CU1031E directly replace the Honeywell 43C110K in existing assemblies?

A: Yes. Both potentiometers share identical mechanical interfaces (panel mount, 3/8-32 bushing thread, 2.000" actuator length, 0.250" actuator diameter) and electrical ratings (10k Ohm, 2W, linear taper, single-gang, solder lug termination). Physical installation and electrical connection are compatible.

Q: What is the significance of the tolerance difference between ±5% and ±10%?

A: The 43C110K specifies ±5% resistance tolerance while the CU1031E specifies ±10%. Applications requiring tighter resistance tolerance control should evaluate this specification against circuit requirements. For general potentiometer applications, both tolerances are within acceptable operational ranges.

Q: How does the resistive material difference affect substitution?

A: The 43C110K uses wirewound construction while the CU1031E uses carbon construction. Both deliver the required 2W power rating and 10k Ohm resistance. Material composition does not affect mechanical interchangeability or standard potentiometer functionality. Applications with specific environmental or frequency response requirements should evaluate material-specific performance characteristics against circuit specifications.

Q: What is the practical significance of the 312° rotation versus 300° rotation?

A: The CU1031E provides 312° rotation compared to the 43C110K's 300° rotation. This 12° difference represents approximately 4% additional rotation range and does not prevent mechanical or electrical substitution in standard applications.

Q: Are both components RoHS compliant?

A: Yes. The Honeywell 43C110K is RoHS Compliant. The Ohmite CU1031E is ROHS3 Compliant. Both meet current RoHS regulatory requirements for manufacturing and assembly.

Q: Why is the 43C110K listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The Ohmite CU1031E maintains Active status with current manufacturing availability, making it suitable for ongoing supply requirements.