RI-46C Glass Body Reed Switch Equivalent & Substitute Parts

Part Overview

The RI-46C is a glass body reed switch manufactured by Comus International, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a switching capacity of 1A at 250V AC. This through-hole mounted component is rated for 40W power dissipation and operates across a temperature range of -55°C to 125°C. The RI-46C is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where legacy component specifications must be maintained.

Substiute Parts

RI-46C

Comus InternationalIn Stock: 668RI-46C Datasheet

Current PartRFQ

RI-48GP-5055

Comus InternationalIn Stock: 1513RI-48GP-5055 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RI-46C is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Circuit configuration must remain SPST-NO
• Switching current rating must equal or exceed 1A (AC/DC)
• AC voltage rating must equal or exceed 250V
• DC voltage rating must equal or exceed 200V
• Operating temperature range must encompass -55°C to 125°C

Mechanical Equivalence Criteria:

• Glass body reed switch type
• Physical dimensions (body size and overall length)
• Termination style (axial)
• Capacitance specification (0.2 pF)

Compliance Criteria:

• RoHS compliance status
• REACH compliance status

The RI-48GP-5055 meets all electrical equivalence requirements with identical switching voltage ratings, matching circuit configuration, and compatible temperature range. Physical dimensions and termination style are identical. The substitute part maintains RoHS and REACH compliance status equivalent to the original component.

Parameter Comparison

Engineering Selection Recommendations

The RI-48GP-5055 serves as an electrical and dimensional equivalent to the obsolete RI-46C across all critical switching parameters. Both components maintain identical voltage ratings (250V AC / 200V DC), current capacity (1A AC/DC), operating temperature range (-55°C to 125°C), and physical dimensions.

Key Considerations:

The primary distinction between these components is mounting type: the RI-46C is through-hole mounted, while the RI-48GP-5055 is surface-mount. This difference requires PCB redesign if direct board-level substitution is required. The RI-48GP-5055 provides higher power rating (70W versus 40W), which represents an enhancement over the original specification and does not create compatibility issues.

Both components maintain current regulatory compliance. The RI-46C carries RoHS Compliant status, while the RI-48GP-5055 carries ROHS3 Compliant status, representing updated compliance certification. Both are REACH Unaffected.

The RI-48GP-5055 is currently in active production status with 1494 units in stock, ensuring availability for replacement and new applications.

Frequently Asked Questions (FAQ)

Q: Can the RI-48GP-5055 directly replace the RI-46C in existing PCB assemblies?

A: Electrical substitution is valid. However, mounting type differs: RI-46C is through-hole while RI-48GP-5055 is surface-mount. Direct board-level substitution requires PCB redesign to accommodate surface-mount footprint.

Q: Are the switching voltage and current ratings identical between these parts?

A: Yes. Both components are rated for 1A switching current at 250V AC and 200V DC. Operating temperature ranges are identical (-55°C to 125°C).

Q: What is the significance of the higher power rating on the RI-48GP-5055?

A: The RI-48GP-5055 is rated for 70W versus the RI-46C's 40W. This represents increased power handling capability and does not create compatibility issues when substituting into applications designed for the lower-rated component.

Q: Are both components RoHS compliant?

A: Yes. The RI-46C carries RoHS Compliant certification. The RI-48GP-5055 carries ROHS3 Compliant certification, representing updated compliance standards. Both meet current regulatory requirements.

Q: What is the packaging difference between these components?

A: The RI-46C is supplied in standard packaging. The RI-48GP-5055 is supplied in bulk packaging, which may affect procurement quantities and handling procedures.

Q: Are the physical dimensions identical?

A: Yes. Both components have identical body dimensions (0.106" diameter x 0.807" length / 2.70mm x 20.50mm) and overall length (2.157" / 54.79mm). Termination style is axial for both.