Equivalent & Substitute Parts for 585DX4Q25F502ZP

Part Overview

The Honeywell 585DX4Q25F502ZP is a 5k Ohm 2-gang logarithmic panel mount potentiometer with carbon resistive material, rated at 0.05W (1/20W) power dissipation. This component features a 300° rotation, side adjustment, and PC pin termination with a flatted actuator. The product is classified as obsolete, necessitating identification of active equivalent components for continued system support and new designs.

Substiute Parts

585DX4Q25F502ZP

Honeywell Sensing and Productivity SolutionsIn Stock: 763585DX4Q25F502ZP Datasheet

Current PartRFQ

PTD902-2020F-A502

Bourns Inc.In Stock: 1250PTD902-2020F-A502 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 585DX4Q25F502ZP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 5k Ohm
• Tolerance: ±20%
• Taper characteristic: Logarithmic
• Number of gangs: 2
• Number of turns: 1
• Rotation angle: 300°
• Resistive material: Carbon
• Termination style: PC Pins
• Mounting type: Panel Mount
• Bushing thread: M7 x 0.75
• Actuator type: Flatted
• Adjustment type: Side Adjustment

Allowable Variation:

• Power rating: Substitute parts may have equal or lower power dissipation ratings, provided the application does not exceed the substitute's maximum power specification
• Actuator length: Minor dimensional variations are acceptable within mechanical assembly constraints
• Body size: Rectangular form factor with equivalent face dimensions
• Product status: Active status preferred for long-term availability

The Bourns PTD902-2020F-A502 meets all mandatory matching parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The Bourns PTD902-2020F-A502 is a qualified substitute for the obsolete Honeywell 585DX4Q25F502ZP based on the following engineering criteria:

Functional Equivalence: All critical electrical and mechanical parameters match the original specification. The 2-gang logarithmic potentiometer configuration, 5k Ohm resistance, 300° rotation, and panel mount design are identical.

Power Rating Consideration: The substitute component has a lower power rating (0.025W versus 0.05W). This substitution is valid only when the application's actual power dissipation does not exceed 0.025W. Applications operating at or near the original 0.05W specification require thermal analysis to confirm the substitute's adequacy.

Compliance Status: The Bourns component carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The original Honeywell part is RoHS compliant and REACH affected.

Availability: The Bourns PTD902-2020F-A502 is in active production with confirmed inventory availability, ensuring long-term supply chain continuity.

Mechanical Compatibility: The 5mm reduction in actuator length (20.00mm versus 25.00mm) must be evaluated within the specific mechanical assembly context. Panel mounting dimensions and bushing thread specifications are equivalent.

Frequently Asked Questions (FAQ)

Q: Can the PTD902-2020F-A502 directly replace the 585DX4Q25F502ZP in existing designs?

A: Direct replacement is possible when the application's power dissipation does not exceed 0.025W. The electrical characteristics, mechanical mounting interface, and functional performance are equivalent. The actuator length difference (5mm shorter) must be verified against mechanical assembly constraints.

Q: What is the significance of the lower power rating on the substitute part?

A: The PTD902-2020F-A502 is rated at 0.025W compared to the original 0.05W. This means the substitute can safely dissipate up to 0.025W continuously. If your application requires the full 0.05W capacity, the substitute is not suitable without thermal management modifications.

Q: Are the PC pin terminations compatible between these two parts?

A: Yes. Both components use PC pin termination. The Bourns part includes board locks as an additional feature, which does not affect compatibility with standard PC pin footprints.

Q: How do the body dimensions compare?

A: The rectangular body dimensions are nearly identical: Honeywell 11.35mm x 9.50mm versus Bourns 11.30mm x 9.50mm. This 0.05mm difference in width is negligible for panel mount applications.

Q: What compliance certifications should I verify for my application?

A: The Bourns PTD902-2020F-A502 is ROHS3 compliant and REACH unaffected. If your application requires specific compliance certifications beyond these standards, consult the component datasheets and your regulatory requirements.

Q: Is the 5mm actuator length difference critical?

A: The actuator length difference must be evaluated within your specific mechanical design. If the original 25mm length was selected for clearance or engagement depth, the 20mm substitute may require mechanical redesign or may not function correctly. Verify against your mechanical assembly drawings.

Q: What is the availability status of the substitute part?

A: The Bourns PTD902-2020F-A502 is in active production with confirmed inventory. The original Honeywell part is obsolete and no longer manufactured.