XBP24CASIT-001 Equivalent & Substitute Parts

Part Overview

The XBP24CASIT-001 is an 802.15.4 Transceiver Module manufactured by Digi, operating at 2.4GHz with RP-SMA antenna connector and through-hole mounting. This module is part of the XBee-Pro® 802.15.4 series and is currently classified as obsolete. As an obsolete product, identifying equivalent substitute parts is necessary to maintain system continuity, ensure supply chain availability, and support ongoing deployments requiring compatible 802.15.4 transceiver functionality.

Substiute Parts

XBP24CASIT-001

DigiIn Stock: 902XBP24CASIT-001 Datasheet

Current PartRFQ

XB3-24Z8ST

DigiIn Stock: 823XB3-24Z8ST Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XBP24CASIT-001 is determined by the following critical parameters that must remain consistent or compatible:

Core Compatibility Criteria:

• RF Standard: 802.15.4 compliance is mandatory
• Frequency Band: 2.4GHz operation
• Antenna Interface: RP-SMA connector type
• Mounting Configuration: Through-hole package
• Serial Communication: SPI and UART support
• Operating Temperature Range: -40°C ~ 85°C minimum
• Supply Voltage Compatibility: Overlap within 2.7V ~ 3.6V range
• Regulatory Compliance: RoHS Compliant status

The XB3-24Z8ST qualifies as a substitute based on these parameters. While it introduces enhanced capabilities (Zigbee® protocol support, higher sensitivity, lower receive current, I2C interface addition), it maintains all mandatory compatibility criteria for 802.15.4 transceiver operation in equivalent mechanical and electrical form factors.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: XB3-24Z8ST

The XB3-24Z8ST is the recommended substitute for the obsolete XBP24CASIT-001. Selection is based on the following engineering factors:

• Product Status: The XB3-24Z8ST maintains active manufacturing status, ensuring long-term availability and supply chain continuity compared to the obsolete XBP24CASIT-001.
• Regulatory Compliance: Both modules are RoHS Compliant and REACH Unaffected, maintaining equivalent environmental and regulatory standing.
• Certification Status: Both modules carry verified DiGi-Electronics Programmable certification, confirming firmware compatibility pathways.
• Mechanical Compatibility: Identical through-hole mounting and RP-SMA antenna interface enable direct form-factor substitution in existing PCB designs.
• Electrical Compatibility: Operating temperature range, supply voltage overlap, and serial interface compatibility (SPI, UART maintained) support functional equivalence in system integration.
• Performance Enhancement: The XB3-24Z8ST provides improved receiver sensitivity (-103dBm vs. -101dBm) and reduced receive current consumption (15mA vs. 31mA), offering operational advantages in power-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the XB3-24Z8ST directly replace the XBP24CASIT-001 in existing designs?

A: Yes, the XB3-24Z8ST is mechanically and electrically compatible for direct substitution. Both modules use identical through-hole mounting, RP-SMA antenna connectors, and share SPI and UART serial interfaces. The XB3-24Z8ST maintains the same operating temperature range and supply voltage compatibility window.

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

A: The XBP24CASIT-001 operates at 1Mbps data rate using basic 802.15.4 protocol, while the XB3-24Z8ST operates at 250kbps and adds Zigbee® protocol support. The XB3-24Z8ST also includes an I2C interface in addition to SPI and UART, and provides improved receiver sensitivity and lower receive current consumption.

Q: Are there any power consumption differences I should consider?

A: Yes. The XB3-24Z8ST consumes less power in receive mode (15mA vs. 31mA) but requires higher transmit current (135mA vs. 120mA). For receive-heavy applications, the substitute offers power savings; for transmit-heavy applications, power budget analysis is recommended.

Q: Do both modules support the same antenna types?

A: Yes. Both modules use RP-SMA connectors and do not include antennas. Any RP-SMA antenna compatible with 2.4GHz 802.15.4 operation is suitable for either module.

Q: What is the packaging difference between these modules?

A: The XBP24CASIT-001 is supplied in standard packaging, while the XB3-24Z8ST is supplied in tray packaging. This difference does not affect functional compatibility or PCB integration.

Q: Are firmware or software modifications required when switching to the XB3-24Z8ST?

A: Both modules are verified DiGi-Electronics Programmable components. Firmware compatibility depends on your specific application requirements and existing codebase. Consult Digi documentation for protocol-specific implementation details.

Q: Why is the XBP24CASIT-001 classified as obsolete?

A: The XBP24CASIT-001 has reached end-of-life status in Digi's product portfolio. The XB3-24Z8ST represents the current-generation equivalent with enhanced capabilities and active manufacturing support.