XT09-MI-MESH Equivalent & Substitute Parts

Part Overview

The XT09-MI-MESH is a General ISM < 1GHz transceiver module manufactured by Digi as part of the XTend® series. This chassis mount RF module operates at 900MHz with FHSS and FSK modulation, delivering 225kbps data rate and 30dBm output power. The module features MMCX antenna connectivity and UART serial interface for system integration.

The XT09-MI-MESH is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system continuity, ensure supply chain availability, and support ongoing deployments where this module is integrated into production equipment or field installations.

Substiute Parts

XT09-MI-MESH

DigiIn Stock: 873XT09-MI-MESH Datasheet

Current PartRFQ

XTP9B-DMM-001

DigiIn Stock: 1152XTP9B-DMM-001 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XT09-MI-MESH is evaluated based on the following critical parameters that define functional and mechanical compatibility:

RF Compatibility Parameters:

• RF Family/Standard: General ISM < 1GHz
• Frequency Band: 900MHz ISM band operation
• Modulation Support: FSK capability (core requirement for ISM < 1GHz modules)
• Output Power: 30dBm
• Sensitivity: -110dBm

Electrical Parameters:

• Voltage Supply Range: 2.8V ~ 5.5V
• Serial Interface: UART

Mechanical & Connectivity Parameters:

• Antenna Interface: MMCX connector
• Package Type: Module form factor
• Operating Temperature Range: -40°C ~ 85°C

Regulatory & Supply Parameters:

• Manufacturer: Digi (XTend® series continuity)
• Moisture Sensitivity: MSL 1 (Unlimited)

The XTP9B-DMM-001 qualifies as a direct substitute based on alignment across all critical parameters. While mounting type differs (surface mount vs. chassis mount), both modules share identical RF specifications, electrical characteristics, antenna interface, and operating environment ratings. The frequency range expansion (902MHz ~ 928MHz) and data rate reduction (125kbps vs. 225kbps) represent functional variations within the same product family and ISM band allocation.

Parameter Comparison

Engineering Selection Recommendations

XTP9B-DMM-001 as Primary Substitute:

The XTP9B-DMM-001 is the designated substitute for the obsolete XT09-MI-MESH. Selection is based on the following engineering criteria:

Product Status & Availability: The XTP9B-DMM-001 maintains active manufacturing status with confirmed inventory (1100 pcs), ensuring long-term supply chain continuity compared to the obsolete XT09-MI-MESH.

Regulatory Compliance: The XTP9B-DMM-001 is RoHS Compliant, meeting current environmental and regulatory standards. Both modules share identical REACH Unaffected status and ECCN/HTSUS classifications.

RF & Electrical Equivalence: Both modules operate within the General ISM < 1GHz standard with identical output power (30dBm), sensitivity (-110dBm), supply voltage range (2.8V ~ 5.5V), and UART serial interface. The frequency range of the substitute (902MHz ~ 928MHz) encompasses the original 900MHz operation point.

Physical & Connectivity Compatibility: Both modules feature MMCX antenna connectors, identical operating temperature range (-40°C ~ 85°C), and MSL 1 rating. The primary design consideration is the mounting type transition from chassis mount to surface mount, which requires PCB layout modification but does not affect electrical or RF performance.

Data Rate Consideration: The XTP9B-DMM-001 operates at 125kbps compared to the original 225kbps. This reduction must be evaluated against system bandwidth requirements during integration planning.

Frequently Asked Questions (FAQ)

Q: Can the XTP9B-DMM-001 directly replace the XT09-MI-MESH without any modifications?

A: Electrical and RF compatibility is direct. However, the mounting type differs: XT09-MI-MESH is chassis mount while XTP9B-DMM-001 is surface mount. PCB layout modification is required to accommodate the surface mount footprint. Antenna connector (MMCX) and electrical interface (UART) remain identical.

Q: What is the impact of the data rate difference (225kbps vs. 125kbps)?

A: The XTP9B-DMM-001 operates at 125kbps, which is 56% lower than the original 225kbps. System throughput requirements must be re-evaluated. If higher data rates are critical, alternative modules within the XTend® series should be reviewed.

Q: Are the frequency ranges compatible?

A: Yes. The XT09-MI-MESH operates at 900MHz, while the XTP9B-DMM-001 covers 902MHz ~ 928MHz. The substitute's frequency range encompasses the original operating point within the ISM band allocation. Regional frequency regulations must be verified for deployment.

Q: What is the significance of the RoHS Compliant status on the substitute?

A: The XTP9B-DMM-001 meets RoHS (Restriction of Hazardous Substances) requirements, ensuring compliance with current environmental regulations. This is advantageous for new designs and regulatory compliance in restricted markets.

Q: Are there any current consumption differences?

A: Yes. The XTP9B-DMM-001 has lower receive current (35mA vs. 80mA) and similar transmit current (710mA vs. 90mA ~ 730mA). Power budget analysis should be performed for battery-powered or power-constrained applications.

Q: Is the MMCX antenna interface identical on both modules?

A: Yes. Both modules use MMCX chassis mount antenna connectors with no antenna included. Existing antenna solutions are compatible with the substitute.

Q: What is the supply voltage compatibility?

A: Both modules operate within the identical 2.8V ~ 5.5V supply range. No power supply modifications are required.

Q: How does the MSL rating affect handling and storage?

A: Both modules carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special environmental controls.