Phoenix Contact 2904692 SSR Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2904692 is a solid-state relay (SSR) module with SPST-NO (1 Form A) configuration, designed for DC load switching applications. This component operates with a 230VAC/DC input signal and supports load voltages from 3V to 48V at 100mA maximum current. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations. The PLC-OSC series module is mounted on DIN rail and features screw terminal connections.

Substiute Parts

2904692

Phoenix ContactIn Stock: 11382904692 Datasheet

Current PartRFQ

2908177

Phoenix ContactIn Stock: 9902908177 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2904692 is determined by the following critical parameters:

• Circuit configuration must remain SPST-NO (1 Form A)
• Output type must be DC
• Input voltage must be 230VAC/DC
• Mounting type must be DIN Rail
• Termination style must be Screw Terminal
• Load voltage range and load current capacity must be compatible with the application requirements

The substitute part 2908177 maintains identical circuit configuration, output type, input voltage, mounting type, and termination style. However, the load voltage range (5V ~ 30V) is narrower than the original part, and the load current capacity (3mA) is significantly lower. Substitution is valid only when the application load voltage operates within the 5V to 30V range and the required current does not exceed 3mA.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2908177 is an active product within the same PLC-OSC series and maintains full compatibility with the electrical interface and mechanical mounting requirements of the 2904692. Both components are RoHS compliant and feature identical input voltage specifications and circuit topology.

Selection of the 2908177 as a substitute is appropriate when the application load voltage remains within the 5V to 30V operating window and the load current requirement does not exceed 3mA. Applications requiring load voltages below 5V or above 30V, or load currents exceeding 3mA, cannot use the 2908177 as a direct substitute.

The active product status of the 2908177 ensures continued availability and supply chain stability compared to the obsolete 2904692.

Frequently Asked Questions (FAQ)

Q: Can the 2908177 replace the 2904692 in all applications?

A: No. The 2908177 has reduced load voltage range (5V ~ 30V versus 3V ~ 48V) and significantly lower load current capacity (3mA versus 100mA). Substitution is valid only when both the load voltage and current requirements fall within the 2908177 specifications.

Q: What is the primary difference between these two parts?

A: The main differences are load voltage range and load current capacity. The 2904692 supports higher voltage (down to 3V and up to 48V) and higher current (100mA), while the 2908177 is limited to 5V ~ 30V and 3mA.

Q: Are both parts mechanically compatible?

A: Yes. Both parts use DIN rail mounting and screw terminal connections, ensuring identical mechanical integration into existing systems.

Q: Why is the 2904692 obsolete?

A: Product obsolescence is determined by the manufacturer. The 2908177, as an active product in the same series, represents the current offering for similar applications within its specified parameter range.

Q: Do both parts have the same input voltage requirement?

A: Yes. Both the 2904692 and 2908177 require 230VAC/DC input voltage and maintain identical circuit configuration (SPST-NO).