XM131 Equivalent & Substitute Parts

Part Overview

The XM131 is a people and motion radar module manufactured by Acconeer AB, designed as an RF IC sensor operating across a 1.8V to 3.6V supply range. This component functions as a chassis-mounted radar sensor module for motion and presence detection applications. The XM131 is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure long-term component availability for new production and legacy system support.

Substiute Parts

XM131

Acconeer ABIn Stock: 765XM131 Datasheet

Current PartRFQ

XM123

Acconeer ABIn Stock: 3519XM123 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XM131 is based on functional equivalence within the Acconeer AB radar sensor module family. The primary substitute, XM123, maintains core functional compatibility as a people and motion radar module with identical RF type classification and sensor function. Both components operate within compatible supply voltage parameters and share equivalent RoHS3 compliance and moisture sensitivity specifications.

The substitution logic is determined by the following key parameters:

• Manufacturer alignment (Acconeer AB)
• Functional category (Sensor, Radar RF Type)
• Supply voltage compatibility (1.8V minimum requirement met by XM123)
• Environmental compliance (RoHS3, REACH Unaffected)
• Moisture sensitivity rating (MSL 3)

The XM123 represents an active product status alternative, addressing the obsolescence of the XM131 while maintaining sensor functionality for people and motion detection applications.

Parameter Comparison

Engineering Selection Recommendations

The XM123 is the manufacturer-recommended substitute for the obsolete XM131. Both components maintain identical compliance certifications (ROHS3 Compliant, REACH Unaffected) and equivalent moisture sensitivity specifications, ensuring regulatory and environmental compatibility.

The XM123 operates at a fixed 1.8V supply, which falls within the lower range of the XM131's 1.8V to 3.6V supply specification. Applications requiring supply voltages above 1.8V must implement appropriate voltage regulation to ensure XM123 compatibility.

The transition from chassis mount to surface mount packaging requires mechanical redesign of the mounting interface. The XM123's 28-SMD module package necessitates PCB layout modifications compared to the XM131's chassis mount configuration.

The XM123's specified 60GHz operating frequency provides defined frequency performance compared to the XM131's unspecified frequency parameter, offering improved technical clarity for system design.

Frequently Asked Questions (FAQ)

Q: Can the XM123 directly replace the XM131 without design modifications?

A: The XM123 provides functional sensor equivalence but requires mechanical redesign due to mounting type differences. The XM131 uses chassis mount configuration, while the XM123 employs surface mount technology with a 28-SMD module package. PCB layout and mechanical mounting structures must be modified accordingly.

Q: What are the supply voltage considerations when substituting XM131 with XM123?

A: The XM131 operates across 1.8V to 3.6V, while the XM123 operates at a fixed 1.8V supply. Applications designed for the XM131's higher voltage range require voltage regulation circuits to step down supply voltage to 1.8V for XM123 compatibility.

Q: Are both components compliant with current environmental regulations?

A: Yes. Both the XM131 and XM123 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the significance of the 60GHz frequency specification for the XM123?

A: The XM123 specifies 60GHz operation, providing defined frequency performance for radar sensing applications. The XM131's frequency specification is not provided in the component documentation. This frequency parameter is relevant for system design considerations related to propagation characteristics and regulatory compliance in specific geographic markets.

Q: How do the moisture sensitivity levels compare between these components?

A: Both components share identical Moisture Sensitivity Level (MSL) ratings of 3 with 168-hour exposure limits. This equivalence ensures identical handling, storage, and reflow soldering requirements during manufacturing and assembly processes.

Q: What inventory considerations exist for component selection?

A: The XM131 is obsolete with 731 pieces in stock. The XM123 is an active product with 3,422 pieces in stock, providing superior long-term availability and supply chain reliability for ongoing production requirements.