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Honeywell 392C250K Potentiometer - Equivalent & Substitute Parts
Part Overview
The Honeywell 392C250K is a 50k Ohm 1/2W linear panel mount potentiometer featuring conductive plastic resistive material and PC pin termination. This component is classified as obsolete, necessitating identification of active substitute parts for new designs and ongoing production requirements. The 392 series potentiometer is designed for user-defined adjustment applications requiring 295° rotation and panel-mounted installation with slotted actuator control.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 50k Ohm |
| Power Rating | 0.5W, 1/2W |
| Tolerance | ±10% |
| Taper | Linear |
| Number of Turns | 1 |
| Number of Gangs | 1 |
| Rotation | 295° |
| Mounting Type | Panel Mount |
| Bushing Thread | 1/4-32 |
| Actuator Type | Slotted |
| Actuator Length | 0.625" (15.88mm) |
| Actuator Diameter | 0.125" (3.18mm) |
| Body Size | Round - 0.510" Dia (12.95mm) |
Substitute Part Grouping Explanation
Substitution of the Honeywell 392C250K is determined by strict equivalence across the following critical parameters:
- Electrical Specifications: Resistance value (50k Ohm), power rating (0.5W, 1/2W), and tolerance (±10%) must be identical
- Mechanical Configuration: Linear taper, single-turn, single-gang design with 295° rotation
- Physical Dimensions: Panel mount installation with 1/4-32 bushing thread, slotted actuator with specified length (0.625") and diameter (0.125"), and round body diameter (0.510")
- Functional Characteristics: User-defined adjustment type with no built-in switch
The substitute part RV6LAYSA503A meets all electrical and mechanical equivalence criteria. The primary difference is the resistive material composition (carbon versus conductive plastic) and termination style (solder lug versus PC pins), which do not affect functional substitution within the specified parameter constraints.
Parameter Comparison
| Parameter | Honeywell 392C250K | Precision Electronics RV6LAYSA503A | Match Status |
|---|---|---|---|
| Resistance (Ohms) | 50k | 50k | Equivalent |
| Power (Watts) | 0.5W, 1/2W | 0.5W, 1/2W | Equivalent |
| Tolerance | ±10% | ±10% | Equivalent |
| Taper | Linear | Linear | Equivalent |
| Number of Turns | 1 | 1 | Equivalent |
| Number of Gangs | 1 | 1 | Equivalent |
| Rotation | 295° | 295° | Equivalent |
| Mounting Type | Panel Mount | Panel Mount | Equivalent |
| Bushing Thread | 1/4-32 | 1/4-32 | Equivalent |
| Actuator Type | Slotted | Slotted | Equivalent |
| Actuator Length | 0.625" (15.88mm) | 0.625" (15.88mm) | Equivalent |
| Actuator Diameter | 0.125" (3.18mm) | 0.125" (3.18mm) | Equivalent |
| Body Size | Round - 0.510" Dia (12.95mm) | Round - 0.510" Dia (12.95mm) | Equivalent |
| Resistive Material | Conductive Plastic | Carbon | Different |
| Termination Style | PC Pins | Solder Lug | Different |
| Product Status | Obsolete | Active | Substitute Available |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Compliant |
Engineering Selection Recommendations
The Precision Electronics RV6LAYSA503A potentiometer serves as a direct functional substitute for the obsolete Honeywell 392C250K based on complete electrical and mechanical parameter equivalence. The RV6LAYSA503A is classified as active product status, ensuring ongoing availability and supply chain continuity.
Both components maintain RoHS compliance. The Honeywell 392C250K carries RoHS Compliant certification, while the Precision Electronics RV6LAYSA503A meets ROHS3 Compliant standards, satisfying current regulatory requirements.
The primary design consideration is termination compatibility. The Honeywell 392C250K uses PC pins, while the RV6LAYSA503A employs solder lug termination. Circuit board layout and connection methodology must accommodate this difference. The resistive material difference (conductive plastic versus carbon) does not affect electrical performance within the specified tolerance and power rating parameters.
Frequently Asked Questions (FAQ)
Q: Can the RV6LAYSA503A directly replace the Honeywell 392C250K in existing designs?
A: Electrical and mechanical substitution is valid based on parameter equivalence. Termination style modification (PC pins to solder lug) requires circuit board connection redesign.
Q: What is the significance of the resistive material difference?
A: Both conductive plastic and carbon materials meet the specified 50k Ohm resistance, ±10% tolerance, and 0.5W power rating. Material selection does not affect functional performance within these constraints.
Q: Why is the Honeywell 392C250K classified as obsolete?
A: Obsolete status indicates the manufacturer has discontinued production. The RV6LAYSA503A provides active product continuity for equivalent applications.
Q: Are there packaging differences between these components?
A: The Honeywell 392C250K is packaged in standard format with 688 pieces in stock. The Precision Electronics RV6LAYSA503A is supplied in bulk packaging with 895 pieces available. Both are new original inventory.
Q: What compliance certifications apply to both parts?
A: Both components are RoHS compliant. The Honeywell 392C250K carries RoHS Compliant status. The Precision Electronics RV6LAYSA503A meets ROHS3 Compliant requirements. The RV6LAYSA503A is also REACH Unaffected.
Q: How do the electrical specifications compare?
A: Resistance (50k Ohm), power rating (0.5W, 1/2W), tolerance (±10%), and all functional parameters are identical between both components.
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