Equivalent & Substitute Parts for RI-46AA Reed Switch

Part Overview

The RI-46AA is a Glass Body Reed Switch manufactured by Comus International, configured as SPST-NO (Single Pole Single Throw - Normally Open) with a switching capacity of 750mA at 200V. This through-hole component is rated for 30W power dissipation and operates across a temperature range of -55°C to 125°C. The RI-46AA is classified as obsolete, making identification of compatible substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

RI-46AA

Comus InternationalIn Stock: 658RI-46AA Datasheet

Current PartRFQ

RI-46GP1520

Comus InternationalIn Stock: 1495RI-46GP1520 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RI-46AA is determined by strict alignment with the following critical parameters:

Circuit Configuration: Both the main part and substitute must maintain SPST-NO topology to ensure functional equivalence in switching applications.

Voltage Rating: Switching voltage must remain at 200V (AC/DC) to preserve circuit compatibility and safety margins.

Power Rating: The 30W power dissipation specification must be maintained or exceeded in substitute components.

Mounting and Termination: Through-hole mounting with axial termination is required for mechanical and electrical compatibility with existing PCB designs.

Temperature Range: Operating temperature specification of -55°C to 125°C must be supported.

Current Capacity: The substitute component must support the switching current requirements of the application. The RI-46AA specifies 750mA switching current; substitutes with equal or higher current ratings are acceptable.

Series Compatibility: Components within the RI-46 series from Comus International maintain consistent physical dimensions and electrical interfaces.

Parameter Comparison

Engineering Selection Recommendations

The RI-46GP1520 is a direct substitute for the obsolete RI-46AA based on electrical and mechanical parameter alignment. Both components share identical voltage ratings (200V AC/DC), power dissipation (30W), physical dimensions, and switching response times (0.35ms operate, 0.03ms release).

The RI-46GP1520 provides enhanced specifications in current capacity: 1A switching current versus the RI-46AA's 750mA, and 2.5A DC carry current versus 2A. These higher ratings ensure the substitute component accommodates the RI-46AA's operational requirements with additional margin.

The RI-46GP1520 maintains active product status with ROHS3 compliance certification, providing long-term availability and regulatory alignment. The RI-46AA's obsolete classification necessitates transition to the RI-46GP1520 for new procurements and system redesigns.

Both components are classified as REACH Unaffected and carry EAR99 export classification, maintaining consistent regulatory positioning.

Frequently Asked Questions (FAQ)

Q: Can the RI-46GP1520 directly replace the RI-46AA in existing circuit designs?

A: Yes. The RI-46GP1520 maintains identical electrical specifications (200V, 30W, SPST-NO configuration) and physical dimensions (2.157" length, 0.106" diameter body, axial termination). Through-hole mounting compatibility is preserved. The substitute component's higher current ratings (1A switching, 2.5A carry) do not create incompatibility with applications designed for the RI-46AA's 750mA switching specification.

Q: What is the significance of the RI-46AA's obsolete status?

A: Obsolete classification indicates the RI-46AA is no longer manufactured or supported by Comus International. New component procurement is not available. The RI-46GP1520, classified as active, represents the current production equivalent within the RI-46 series and is the appropriate selection for replacement inventory and new designs.

Q: Are there packaging differences between the RI-46AA and RI-46GP1520?

A: The RI-46AA is specified with "-" packaging notation in the provided data. The RI-46GP1520 is supplied in bulk packaging. Both components maintain identical physical form factors and through-hole termination, ensuring compatibility with standard PCB assembly processes.

Q: How do the operate and release ranges differ between these components?

A: The RI-46AA specifies an operate range of 10-19AT (Ampere-Turns) with a release range of 4-12AT. The RI-46GP1520 specifies an operate range of 15-20AT. These ranges define the magnetic field strength required for switch activation and deactivation. The RI-46GP1520's operate range is shifted higher, reflecting its enhanced current capacity. Application compatibility depends on the magnetic field characteristics of the actuating mechanism; verify that the application's magnetic field aligns with the RI-46GP1520's 15-20AT operate specification.

Q: What compliance certifications apply to both components?

A: Both the RI-46AA and RI-46GP1520 are RoHS compliant, REACH unaffected, and classified as EAR99 for export purposes. The RI-46GP1520 carries ROHS3 certification, representing enhanced compliance with current regulatory standards. Both components carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions.