XB24-WFSIT-001 Equivalent & Substitute Parts

Part Overview

The XB24-WFSIT-001 is a WiFi 802.11b/g/n transceiver module operating at 2.4GHz with RP-SMA antenna connector and through-hole mounting. This module is classified as Obsolete, making identification of compatible substitute parts essential for ongoing system support and new procurement decisions. The XBee® series designation indicates this component belongs to Digi's established wireless module platform.

Substiute Parts

XB24-WFSIT-001

DigiIn Stock: 1117XB24-WFSIT-001 Datasheet

Current PartRFQ

XB2B-WFST-001

DigiIn Stock: 2028XB2B-WFST-001 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The XB2B-WFST-001 qualifies as a direct substitute based on the following alignment of critical parameters:

Matching Parameters:

• Manufacturer: Digi (same OEM)
• RF Family/Standard: WiFi (identical wireless standard)
• Protocol: 802.11b/g/n (compatible protocol support)
• Frequency: 2.4GHz (identical operating band)
• Antenna Type: Antenna Not Included, RP-SMA (identical connector and configuration)
• Mounting Type: Through Hole (identical mechanical interface)
• Package/Case: Module (identical form factor)
• Moisture Sensitivity Level: 1 (Unlimited) (identical environmental rating)

Series Relationship: The XB2B-WFST-001 belongs to the XBee® Wi-Fi series, representing an evolution within the same product family as the XB24-WFSIT-001 (XBee® series). Both modules maintain compatibility with the RP-SMA connector standard and through-hole mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement: The XB2B-WFST-001 is the designated substitute for the XB24-WFSIT-001. Both modules share identical RF standards, frequency band, antenna interface, and mounting configuration. The XB2B-WFST-001 carries "Not For New Designs" status, indicating it represents a transitional product within the XBee® Wi-Fi series evolution.

Compliance Considerations: The XB2B-WFST-001 is RoHS Compliant, whereas the XB24-WFSIT-001 compliance status is not specified. Both modules are REACH Unaffected and carry identical Moisture Sensitivity Level ratings.

Performance Trade-offs: The XB2B-WFST-001 provides improved data rate (72Mbps vs. 65Mbps) and marginally higher power output (16dBm vs. 15dBm). The XB24-WFSIT-001 maintains superior receiver sensitivity (-97dBm vs. -93dBm) and supports extended low-temperature operation (-40°C vs. -30°C minimum). Current consumption differs between receive and transmit modes; the XB2B-WFST-001 draws less current during reception but more during transmission.

Supply Voltage Compatibility: The XB2B-WFST-001 supply voltage range (3.14V ~ 3.46V) is a subset of the XB24-WFSIT-001 range (3.1V ~ 3.6V). Systems operating at the extremes of the original specification (below 3.14V or above 3.46V) require design review.

Frequently Asked Questions (FAQ)

Q: Can the XB2B-WFST-001 directly replace the XB24-WFSIT-001 in existing designs?

A: Yes, for applications where the supply voltage remains within 3.14V to 3.46V and operating temperature does not fall below -30°C. The identical RP-SMA connector, through-hole mounting, and 802.11b/g/n protocol support enable direct substitution in most configurations. Applications requiring operation below -30°C or at supply voltages below 3.14V require circuit modification or alternative sourcing.

Q: What are the key differences in electrical performance?

A: The XB2B-WFST-001 offers higher data throughput (72Mbps vs. 65Mbps) and marginally higher transmit power (16dBm vs. 15dBm). The XB24-WFSIT-001 provides superior receiver sensitivity (-97dBm vs. -93dBm), beneficial for weak-signal applications. Transmit current consumption is higher in the XB2B-WFST-001 (309mA vs. 260mA), while receive current is lower (100mA vs. 140mA).

Q: Are there mechanical compatibility concerns?

A: No. Both modules use identical through-hole mounting and RP-SMA antenna connectors. PCB layout and connector placement remain compatible between the two parts.

Q: What is the significance of the product status designations?

A: The XB24-WFSIT-001 is marked Obsolete, indicating end-of-life status and limited availability. The XB2B-WFST-001 is marked "Not For New Designs," indicating it is a transitional product suitable for replacement applications but not recommended for new development. For new designs, consult Digi's current XBee® product portfolio.

Q: Does the XB2B-WFST-001 require different firmware or software configuration?

A: Both modules support 802.11b/g/n protocols and RP-SMA antenna interfaces. The XB2B-WFST-001 explicitly specifies SPI and UART serial interfaces, whereas the XB24-WFSIT-001 does not document interface specifications. Verify firmware compatibility and interface requirements with Digi technical documentation for your specific application.

Q: What compliance certifications apply to each module?

A: The XB2B-WFST-001 is RoHS Compliant. Both modules are REACH Unaffected and carry identical Moisture Sensitivity Level 1 (Unlimited) ratings. The XB24-WFSIT-001 compliance status is not fully specified in available documentation.