Phoenix Contact 2967743 SSR Relay SPST-NO 100mA 3-48V Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2967743 is a solid-state relay (SSR) module configured as SPST-NO (Single Pole Single Throw - Normally Open) with a 1 Form A circuit. This component is designed for DIN rail mounting and operates with input voltage of 48VDC and load voltage range of 3V to 48V, supporting load currents up to 100mA. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and new designs requiring this relay topology.

Substiute Parts

2967743

Phoenix ContactIn Stock: 7042967743 Datasheet

Current PartRFQ

2900353

Phoenix ContactIn Stock: 10512900353 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Phoenix Contact 2967743 is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPST-NO (1 Form A) topology
• Output type: DC switching
• Input voltage: 48VDC
• Load voltage range: 3V to 48V
• Load current capacity: 100mA minimum
• Mounting interface: DIN rail
• Termination method: Spring terminal
• Package form: Module

The substitute part 2900353 maintains identical electrical specifications and mechanical interface requirements, differing only in product status (active vs. obsolete) and series designation (PLC-OPT vs. PLC).

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2900353 is the direct functional equivalent for the obsolete 2967743. Both components share identical electrical ratings, mechanical interfaces, and compliance certifications. The 2900353 is currently in active production status with confirmed inventory availability (969 units), whereas the 2967743 is obsolete with limited stock (685 units). For new designs and system replacements, the 2900353 provides continuity of supply and ongoing manufacturer support. Both parts maintain RoHS compliance and equivalent moisture sensitivity ratings (MSL 1 - Unlimited).

Frequently Asked Questions (FAQ)

Q: Can the 2900353 directly replace the 2967743 in existing installations?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: SPST-NO circuit topology, 48VDC input, 3-48V load voltage range, 100mA load current, DIN rail mounting, and spring terminal termination. No circuit modifications are required.

Q: What is the difference between the PLC and PLC-OPT series designations?

A: The series designation reflects internal product line organization within Phoenix Contact. The electrical and mechanical specifications remain identical. The PLC-OPT designation (2900353) indicates the current active product line, while PLC (2967743) represents the obsolete predecessor.

Q: Are there packaging differences between these parts?

A: The 2967743 is supplied with standard packaging, while the 2900353 is supplied in bulk packaging. Both are module-form components suitable for DIN rail installation. Packaging differences do not affect electrical performance or mechanical compatibility.

Q: What compliance certifications apply to both parts?

A: Both the 2967743 and 2900353 are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. Both are classified under ECCN EAR99 for export purposes.

Q: Should I prioritize the 2900353 over the 2967743 for new designs?

A: Yes. The 2900353 is the active product with ongoing manufacturer support and confirmed supply availability. The 2967743 is obsolete and should be considered only for direct replacement in existing systems where supply is critical.