Honeywell 308N100 Potentiometer: Equivalent & Substitute Parts

Part Overview

The Honeywell 308N100 is a 100 Ohm, 1/2W linear panel mount potentiometer with conductive plastic resistive material and solder hook termination. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The 308N series potentiometer is designed for applications requiring precise linear resistance adjustment with panel-mounted configuration and user-defined adjustment capability.

Key Parameters

Parameter	Value
Resistance	100 Ohms
Power Rating	0.5W, 1/2W
Taper	Linear
Number of Turns	1.0
Rotation	295°
Number of Gangs	1
Mounting Type	Panel Mount
Bushing Thread	1/4-32
Tolerance	±10%
Built-in Switch	None

Substitute Part Grouping Explanation

Substitution of the Honeywell 308N100 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 100 Ohms
Power rating: 0.5W, 1/2W
Taper type: Linear
Number of turns: 1.0
Rotation angle: 295°
Mounting configuration: Panel Mount
Bushing thread specification: 1/4-32
Tolerance: ±10%
Number of gangs: 1
Built-in switch: None

The RV6NAYSD101A from Precision Electronics Corporation meets all mandatory matching parameters. The primary difference between the main part and substitute is the resistive material composition (conductive plastic versus carbon) and termination style (solder hook versus solder lug), which do not affect functional equivalence within the specified electrical and mechanical constraints.

Parameter Comparison

Parameter	Honeywell 308N100	Precision Electronics RV6NAYSD101A	Match Status
Resistance (Ohms)	100	100	Equivalent
Power Rating (Watts)	0.5W, 1/2W	0.5W, 1/2W	Equivalent
Tolerance	±10%	±10%	Equivalent
Taper	Linear	Linear	Equivalent
Number of Turns	1	1	Equivalent
Rotation	295°	295°	Equivalent
Number of Gangs	1	1	Equivalent
Mounting Type	Panel Mount	Panel Mount	Equivalent
Bushing Thread	1/4-32	1/4-32	Equivalent
Built-in Switch	None	None	Equivalent
Resistive Material	Conductive Plastic	Carbon	Different
Termination Style	Solder Hook	Solder Lug	Different
Actuator Length	0.750" (19.05mm)	0.875" (22.23mm)	Different
Body Size	Square - 0.500" x 0.500" (12.70mm x 12.70mm)	Round - 0.510" Dia (12.95mm)	Different
Product Status	Obsolete	Active	Different
RoHS Status	RoHS Compliant	ROHS3 Compliant	Compliant

Engineering Selection Recommendations

The Precision Electronics RV6NAYSD101A potentiometer is electrically and mechanically equivalent to the Honeywell 308N100 across all critical functional parameters. Selection between these components should be based on the following engineering considerations:

Product Status: The Honeywell 308N100 is obsolete with 964 units in current inventory. The RV6NAYSD101A is active production status with 824 units available, providing superior long-term supply chain reliability and continued manufacturer support.

Compliance Certifications: Both components are RoHS compliant. The RV6NAYSD101A carries ROHS3 compliance and REACH Unaffected status, indicating alignment with current environmental and regulatory standards.

Physical Integration: The RV6NAYSD101A features a round body profile (0.510" diameter) compared to the square body of the 308N100 (0.500" x 0.500"). The actuator length differs by 0.125" (22.23mm versus 19.05mm). These dimensional variations require mechanical fit verification in panel-mounted applications.

Termination Compatibility: The 308N100 uses solder hook termination while the RV6NAYSD101A uses solder lug termination. Circuit board layout and connection methodology must accommodate this difference.

Resistive Material: The 308N100 employs conductive plastic material while the RV6NAYSD101A uses carbon. Both materials support the specified electrical parameters and linear taper characteristic.

Frequently Asked Questions (FAQ)

Q: Can the RV6NAYSD101A directly replace the Honeywell 308N100 in existing designs?

A: Electrical substitution is valid based on matching resistance, power rating, taper, rotation, and tolerance specifications. Mechanical integration requires verification of panel cutout dimensions, actuator length clearance, and termination connection compatibility.

Q: What are the key differences between these potentiometers?

A: The primary differences are resistive material (conductive plastic versus carbon), termination style (solder hook versus solder lug), body shape (square versus round), and actuator length (19.05mm versus 22.23mm). All electrical parameters remain equivalent.

Q: Why is the Honeywell 308N100 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The RV6NAYSD101A, with active production status, provides a path forward for applications requiring this potentiometer specification.

Q: Are both components RoHS compliant?

A: Yes. The Honeywell 308N100 is RoHS Compliant. The Precision Electronics RV6NAYSD101A is ROHS3 Compliant, representing current regulatory alignment.

Q: What packaging formats are available?

A: The Honeywell 308N100 is available in standard packaging. The RV6NAYSD101A is supplied in Bulk packaging format.

Q: Do these potentiometers have identical mechanical dimensions?

A: No. Body shape differs (square versus round), and actuator length varies by 0.125". Panel mounting hole specifications and clearance envelopes must be evaluated for each application.

Q: What is the moisture sensitivity level for each component?

A: The Honeywell 308N100 has MSL 1 (Unlimited). The RV6NAYSD101A is Not Applicable for MSL classification.

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