Phoenix Contact 2902756 Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2902756 is an RF transceiver module operating in the 902MHz to 928MHz ISM band with analog interface and DIN rail mounting capability. Designed for industrial wireless applications, this component provides direct frequency band coverage for unlicensed spectrum communication. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system redesign, legacy system maintenance, and new procurement planning.

Substiute Parts

2902756

Phoenix ContactIn Stock: 11002902756 Datasheet

Current PartRFQ

2901540

Phoenix ContactIn Stock: 10452901540 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2902756 is determined by the following critical parameters:

Frequency Compatibility: The substitute must operate within or encompass the 902MHz to 928MHz ISM band to maintain RF channel alignment with existing system infrastructure.

Functional Classification: The substitute must provide transceiver functionality (simultaneous or sequential transmit/receive capability) to preserve bidirectional communication architecture.

Supply Voltage Range: The substitute must accept 24V operation or operate within a voltage range that includes 24V to ensure direct integration into existing power distribution systems.

Interface Protocol: While the main part uses analog interface, substitutes with digital interfaces (RS-232, RS-485) are acceptable when system architecture permits protocol conversion or when the substitute provides integrated modem functionality.

Product Status: Active or current production status is required to ensure ongoing availability and supply chain continuity.

The Phoenix Contact 2901540 qualifies as a substitute based on overlapping frequency band (900MHz core frequency within ISM spectrum), transceiver/modem function, and active product status, despite differences in interface type and supply voltage range.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Phoenix Contact 2901540

The 2901540 is the designated substitute for the obsolete 2902756. Selection is based on:

• Frequency Alignment: 900MHz operation maintains ISM band compatibility with the original 902–928MHz specification.
• Functional Equivalence: Both components provide transceiver functionality for bidirectional RF communication.
• Supply Voltage Compatibility: The 2901540 supply range of 10.8V to 30.5V encompasses the 24V requirement of the original design.
• Active Product Status: The 2901540 is in active production, ensuring long-term availability and supply chain stability.
• Regulatory Compliance: Both components meet RoHS requirements; the 2901540 achieves ROHS3 compliance and is REACH affected.

Integration Considerations:

The 2901540 introduces digital serial interfaces (RS-232, RS-485) and integrated modem functionality with FHSS protocol, replacing the analog interface of the 2902756. System redesign must account for interface protocol conversion and signal conditioning if the original design relied on direct analog signal processing. The 2901540 does not specify DIN rail mounting; mechanical integration may require custom mounting solutions or enclosure adaptation.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2901540 directly replace the 2902756 without system modifications?

A: Direct pin-for-pin replacement is not possible due to interface type differences. The 2902756 uses analog interface while the 2901540 provides RS-232 and RS-485 digital serial interfaces. System architecture must be evaluated to determine if protocol conversion or signal conditioning is required.

Q: Are both parts certified for the same regulatory standards?

A: Both components are RoHS compliant. The 2902756 is RoHS Compliant; the 2901540 is ROHS3 Compliant. The 2901540 is additionally REACH affected. Verify compliance requirements for your specific application and regional market.

Q: Does the 2901540 operate at the same frequency as the 2902756?

A: The 2902756 operates across 902–928MHz while the 2901540 operates at 900MHz. Both frequencies fall within the ISM band. Verify that your system design and any frequency-dependent components (antennas, filters) are compatible with 900MHz operation.

Q: What is the supply voltage requirement for the 2901540?

A: The 2901540 requires 10.8V to 30.5V. The original 24V supply falls within this range, allowing direct voltage compatibility without additional power conditioning.

Q: Is the 2901540 available in the same packaging as the 2902756?

A: The 2901540 is supplied in bulk packaging. The original 2902756 packaging specification is not detailed. Verify mechanical form factor and mounting requirements for your application, as the 2901540 does not specify DIN rail mount compatibility.

Q: What is the data rate capability of the 2901540?

A: The 2901540 supports a maximum data rate of 500kbps with FHSS modulation. The original 2902756 data rate is not specified. Confirm that 500kbps meets your application bandwidth requirements.