SMS02 Equivalent & Substitute Parts Reference

Part Overview

The SMS02 is an interlock magnetic DPST switch manufactured by Carlo Gavazzi Inc., designed for non-contact magnetic actuation applications. This component operates at 100VAC with a 250mA AC current rating and features IP67 ingress protection for dust-tight, waterproof operation. The SMS02 is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations.

Substiute Parts

SMS02

Carlo Gavazzi Inc.In Stock: 840SMS02 Datasheet

Current PartRFQ

MC88CH1O1CRA2

Carlo Gavazzi Inc.In Stock: 986MC88CH1O1CRA2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMS02 is based on the following critical parameters:

• Magnetic Actuation Principle: Both the main part and substitute must employ non-contact magnetic sensing technology
• Circuit Output Configuration: Compatibility requires NO/NC (normally open/normally closed) output capability
• Voltage Compatibility: The substitute must operate within or accommodate the 100VAC supply requirement through appropriate interface circuitry
• Current Handling: The substitute must support or exceed the 250mA AC current rating for equivalent load switching
• Environmental Protection: IP67 rating is essential for applications requiring dust-tight and waterproof operation
• Operating Temperature Range: The substitute must function within the -25°C to 70°C operational envelope
• Actuation Distance: The substitute must provide comparable must-operate (10mm) and must-release (15mm) distances for mechanical compatibility

The MC88CH1O1CRA2 is identified as a functionally equivalent substitute based on shared magnetic sensing architecture and NO/NC output capability, though voltage and termination specifications differ and require evaluation for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The MC88CH1O1CRA2 represents an active product alternative to the obsolete SMS02. Both components are manufactured by Carlo Gavazzi Inc. and employ magnetic sensing technology with NO/NC output capability.

Key considerations for selection:

• Voltage Requirement: The MC88CH1O1CRA2 operates at 12V to 24V DC, requiring voltage conversion or interface circuitry if direct 100VAC operation is required
• Product Status: The MC88CH1O1CRA2 maintains active product status with current manufacturing support and inventory availability (920 Pcs in stock), whereas the SMS02 is obsolete
• Environmental Rating: Specific ingress protection specifications for the MC88CH1O1CRA2 are not provided; verification against IP67 requirements is necessary for sealed or wet environment applications
• Termination Compatibility: The MC88CH1O1CRA2 uses cable termination versus wire leads on the SMS02, requiring mechanical interface adaptation
• Temperature Range: The MC88CH1O1CRA2 extends the upper operating temperature to 80°C, providing broader thermal compatibility

Frequently Asked Questions (FAQ)

Q: Can the MC88CH1O1CRA2 directly replace the SMS02 in existing installations?

A: Direct replacement requires evaluation of voltage supply architecture. The SMS02 operates at 100VAC, while the MC88CH1O1CRA2 requires 12V to 24V DC. Mechanical termination differences (wire leads versus cable) also necessitate interface adaptation.

Q: What is the primary functional difference between these components?

A: Both employ magnetic actuation with NO/NC output capability. The SMS02 is a DPST switch rated for 250mA AC at 100VAC, while the MC88CH1O1CRA2 is a reed switch-based safety sensor operating at 12V to 24V DC. Application requirements determine which architecture is appropriate.

Q: Are there environmental protection differences?

A: The SMS02 specifies IP67 ingress protection. The MC88CH1O1CRA2 environmental specifications are not provided in available documentation. Applications requiring IP67 dust-tight and waterproof operation must verify the MC88CH1O1CRA2 meets these requirements.

Q: What is the actuation distance compatibility?

A: The SMS02 specifies 10mm must-operate and 15mm must-release distances. Corresponding specifications for the MC88CH1O1CRA2 are not provided. Mechanical compatibility verification is required for applications with specific actuation distance constraints.

Q: Why is the SMS02 listed as obsolete?

A: The SMS02 is classified as obsolete by the manufacturer. The MC88CH1O1CRA2, maintained as an active product, represents the current manufacturing alternative for magnetic sensing applications within the Carlo Gavazzi product portfolio.