Honeywell 53C15K Potentiometer: Equivalent & Substitute Parts

Part Overview

The Honeywell 53C15K is a 5k Ohm, 2-watt linear panel mount potentiometer featuring conductive plastic resistive material and solder lug termination. This component is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing production and maintenance applications. The 53C series potentiometer is designed for user-defined adjustment applications requiring 1-gang, single-turn operation with 312° rotation and panel mounting configuration.

Substiute Parts

53C15K

Honeywell Sensing and Productivity SolutionsIn Stock: 115553C15K Datasheet

Current PartRFQ

CU5021E

OhmiteIn Stock: 858CU5021E Datasheet

DirectRFQ

287T364R502A11

CTS ElectrocomponentsIn Stock: 876287T364R502A11 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 53C15K are qualified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Resistance value: 5k Ohm
• Power rating: 2W
• Tolerance: ±10%
• Taper: Linear

Mechanical Parameters (Must Match):

• Number of gangs: 1
• Number of turns: 1
• Rotation angle: 312°
• Termination style: Solder Lug
• Mounting type: Panel Mount
• Bushing thread: 3/8-32
• Actuator type: Round
• Actuator length: 2.000" (50.80mm)
• Actuator diameter: 0.250" (6.35mm)

Variable Parameter (Allowed Difference):

• Resistive material: Conductive Plastic (main part) vs. Carbon or Cermet (substitutes)

The primary distinction among qualified substitutes is the resistive material composition. All identified substitutes maintain identical electrical performance specifications and mechanical form factors while utilizing alternative resistive technologies.

Parameter Comparison

Engineering Selection Recommendations

CU5021E (Ohmite) - Direct Substitute:

The Ohmite CU5021E qualifies as a direct electrical and mechanical substitute for the obsolete 53C15K. This component maintains all critical electrical parameters (5k Ohm, 2W, ±10% tolerance, linear taper) and mechanical specifications (312° rotation, solder lug termination, panel mount configuration, identical actuator dimensions and bushing thread). The primary difference is resistive material composition: carbon versus conductive plastic. The CU5021E carries active product status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment. Body diameter variation (1.157" vs. 1.094") remains within acceptable mechanical tolerance for panel mount applications.

287T364R502A11 (CTS Electrocomponents) - Direct Substitute:

The CTS 287T364R502A11 provides equivalent electrical and mechanical performance to the 53C15K. All critical specifications align: 5k Ohm resistance, 2W power rating, ±10% tolerance, linear taper, 312° rotation, solder lug termination, and identical actuator geometry. This component utilizes cermet resistive material and maintains active product status with ROHS3 compliance. Body diameter (1.051") is slightly smaller than the original specification but remains compatible with standard 3/8-32 panel mount installations. Moisture sensitivity level (1 - Unlimited) matches the original part specification.

Selection Basis:

Both substitutes are qualified based on product status (active vs. obsolete), regulatory compliance (ROHS3 certification), and complete parameter alignment across electrical and mechanical domains. The choice between CU5021E and 287T364R502A11 depends on supply chain availability, packaging requirements (bulk vs. tray), and application-specific performance characteristics related to resistive material technology.

Frequently Asked Questions (FAQ)

Q: Can the CU5021E or 287T364R502A11 be used as direct replacements for the 53C15K in existing designs?

A: Yes. Both substitutes maintain identical electrical specifications (5k Ohm, 2W, ±10% tolerance, linear taper) and mechanical form factors (312° rotation, solder lug termination, panel mount with 3/8-32 bushing thread, identical actuator dimensions). The resistive material difference (carbon or cermet vs. conductive plastic) does not affect electrical performance within the specified tolerance and power rating parameters.

Q: What is the significance of the resistive material difference?

A: The 53C15K uses conductive plastic, while CU5021E uses carbon and 287T364R502A11 uses cermet. All three materials deliver the specified 5k Ohm resistance value within ±10% tolerance at 2W power rating. Material selection affects manufacturing process and long-term reliability characteristics but does not alter the electrical performance parameters required for substitution.

Q: Are there packaging differences between the substitutes?

A: Yes. The CU5021E is supplied in bulk packaging, while the 287T364R502A11 is supplied in tray packaging. Both are new original stock. Packaging selection depends on procurement volume requirements and inventory management practices.

Q: Do the body diameter variations affect panel mount compatibility?

A: No. The body diameter differences (53C15K: 1.094", CU5021E: 1.157", 287T364R502A11: 1.051") are minor variations that do not affect panel mount installation. All three components use identical 3/8-32 bushing thread specifications and maintain compatible mechanical interfaces.

Q: What compliance certifications apply to the substitute parts?

A: Both CU5021E and 287T364R502A11 carry ROHS3 compliance certification. The original 53C15K is RoHS Compliant. Both substitutes meet current regulatory requirements for electronic component manufacturing and distribution.

Q: Is the 287T364R502A11 moisture sensitivity level compatible with the original specification?

A: Yes. The 287T364R502A11 specifies Moisture Sensitivity Level 1 (Unlimited), which matches the original 53C15K specification. This indicates no moisture sensitivity restrictions for storage, handling, or soldering operations.