XB24-API-001 Equivalent & Substitute Parts

Part Overview

The XB24-API-001 is an 802.15.4 Transceiver Module manufactured by Digi, featuring a 2.4GHz integrated trace antenna and surface mount packaging. This module operates at 250kbps data rate with -92dBm sensitivity and is part of the XBee® 802.15.4 series. The product is currently obsolete, necessitating identification of active equivalent alternatives to maintain system compatibility and ensure continued component availability for new designs and legacy system support.

Substiute Parts

XB24-API-001

DigiIn Stock: 749XB24-API-001 Datasheet

Current PartRFQ

XB3-24Z8PT-J

DigiIn Stock: 18289XB3-24Z8PT-J Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The XB3-24Z8PT-J qualifies as a functional substitute for the XB24-API-001 based on the following core substitution criteria:

Maintained Electrical Compatibility:

• RF Standard: Both operate on 802.15.4
• Frequency: Both operate at 2.4GHz
• Data Rate: Both support 250kbps
• Modulation: Both use DSSS
• Operating Temperature Range: Both rated -40°C ~ 85°C
• Antenna Configuration: Both feature integrated trace antenna

Enhanced Performance Characteristics:

• Sensitivity improved from -92dBm to -103dBm
• Power output increased from 0dBm to 8dBm
• Supply voltage range expanded from 2.8V~3.4V to 2.1V~3.6V
• Current consumption reduced in receive mode (15mA vs 50mA)

Mechanical and Packaging Differences:

• Mounting type changes from Surface Mount (SMD) to Through Hole (TH)
• Serial interfaces expanded from UART only to I2C, SPI, and UART
• Product status upgraded from Obsolete to Active

Parameter Comparison

Engineering Selection Recommendations

The XB3-24Z8PT-J is the active equivalent for the obsolete XB24-API-001. Selection of this substitute is supported by:

Compliance and Availability:

• XB3-24Z8PT-J maintains active product status with verified programmability and RoHS compliance
• XB24-API-001 is obsolete with no ongoing manufacturing or support

Electrical Equivalence:

• Core RF parameters (802.15.4, 2.4GHz, 250kbps, DSSS) are identical
• Operating temperature range is identical
• Supply voltage range of XB3-24Z8PT-J encompasses the original specification

Performance Enhancement:

• Improved receiver sensitivity (-103dBm vs -92dBm) provides better link budget
• Increased transmit power (8dBm vs 0dBm) extends communication range
• Reduced receive current consumption (15mA vs 50mA) improves power efficiency

Design Integration Consideration:

• Mounting type transition from Surface Mount to Through Hole requires PCB layout modification
• Expanded serial interface options (I2C, SPI addition) provide design flexibility without constraint

Frequently Asked Questions (FAQ)

Q: Can XB3-24Z8PT-J directly replace XB24-API-001 in existing designs?

A: Electrical and RF compatibility is maintained. However, the mounting type differs (Through Hole vs Surface Mount), requiring PCB redesign. Pin configuration and signal levels must be verified against respective datasheets before implementation.

Q: What are the key differences in power consumption?

A: Receive current is significantly reduced (15mA vs 50mA), while transmit current is slightly lower (40mA vs 45mA). This results in improved overall power efficiency for battery-powered applications.

Q: Are both modules compatible with 802.15.4 networks?

A: Yes. Both operate on the 802.15.4 standard at 2.4GHz with 250kbps data rate. The XB3-24Z8PT-J adds Zigbee® protocol support, providing additional network capability.

Q: What is the impact of the supply voltage range difference?

A: XB3-24Z8PT-J operates from 2.1V to 3.6V, compared to XB24-API-001's 2.8V to 3.4V. The expanded lower limit allows operation with lower supply voltages, while the upper limit remains compatible with standard 3.3V systems.

Q: Does the improved sensitivity affect system design?

A: The -103dBm sensitivity of XB3-24Z8PT-J versus -92dBm of XB24-API-001 represents an 11dB improvement, extending communication range and improving reception in noise-limited environments without requiring design changes.

Q: Are there serial interface compatibility considerations?

A: XB24-API-001 supports UART only, while XB3-24Z8PT-J supports I2C, SPI, and UART. Existing UART implementations remain compatible; additional interfaces are optional for new designs.