Equivalent & Substitute Parts Reference for 3639NF/2

Part Overview

The APEM Inc. 3639NF/2 is an active SPDT toggle switch designed for panel mount applications, featuring an On-Off-On switch function. With an electrical rating of 6A at 125V AC and 12A at 28V DC, this model is suitable for standard control and switching functions in industrial and equipment design. Bulk packaging and ROHS3 compliance facilitate sourcing and integration for volume builds. Alternate models are vital for maintaining build schedules when inventory availability or procurement constraints occur.

Substiute Parts

3639NF/2

APEM Inc.In Stock: 10613639NF/2 Datasheet

Current PartRFQ

S3AWF

NKK SwitchesIn Stock: 825S3AWF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is validated when key product parameters are electrically and mechanically equivalent between models. Accepted substitute parts must match or exceed the following criteria: actuator type and length, circuit configuration (SPDT), switch function (On-Off-On), panel mount form factor, termination style, electrical ratings (current and voltage), non-illuminated functional spec, panel cutout compatibility, part status (active), and compliance (ROHS3, MSL 1, REACH). Only parameters explicitly provided in the main and substitute part definitions are considered.

Parameter Comparison

Engineering Selection Recommendations

Both the 3639NF/2 (APEM Inc.) and S3AWF (NKK Switches) toggle switches have active part status and are ROHS3 compliant with MSL 1 unlimited rating. Both models are also REACH unaffected, suitable for use in compliant equipment and assemblies. Only substitute parts with documented compliance status and active product status should be selected for designs requiring regulatory conformity and product lifecycle assurance.

Frequently Asked Questions (FAQ)

Q: What defines compatibility in toggle switch substitution?
A: Compatibility is determined strictly by matching circuit type (SPDT), switch function (On-Off-On), mounting type (panel mount), termination style, actuator specifications, and electrical ratings as provided.

Q: Are panel cutout dimensions and bushing threads critical for direct interchange?
A: Only the listed panel cutout dimensions and bushing threads should be compared. Substitutes must align with the specified mechanical parameters for fit.

Q: Do termination styles affect substitution eligibility?
A: Yes. Termination style is specified as Quick Connect - 0.250" (6.3mm) for both models and must match for compatibility.

Q: What role does part status and compliance play in substitute selection?
A: Only active status and fully compliant alternatives (ROHS3, MSL 1, REACH unaffected) are listed as substitutes, ensuring regulatory and lifecycle support.

Q: Are packaging types relevant for substitution?
A: Main and substitute parts are supplied in bulk packaging. For production and procurement, packaging must be considered if specifically required.

Q: Does actuator material or plating affect functional equivalence?
A: Selection is based on supplied actuator specifications; only parameters provided above should be considered in direct equivalence.