LARA-R280-02B Equivalent & Substitute Parts

Part Overview

The LARA-R280-02B is a cellular RF transceiver module manufactured by u-blox, designed for 3G and 4G LTE applications across multiple frequency bands (700MHz, 900MHz, 1.8GHz, 2.1GHz). The module features castellation surface mount packaging and operates within a 3.3V to 4.4V supply voltage range with a sensitivity specification of -111.5dBm.

The LARA-R280-02B is classified as obsolete. Identification of equivalent and substitute parts is necessary to support ongoing system maintenance, production continuity, and design updates where the original component is no longer available through standard distribution channels.

Substiute Parts

LARA-R280-02B

u-bloxIn Stock: 832LARA-R280-02B Datasheet

Current PartRFQ

LARA-R6001-00B

u-bloxIn Stock: 7948LARA-R6001-00B Datasheet

SimilarRFQ

LARA-R6801-00B

u-bloxIn Stock: 9195LARA-R6801-00B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete LARA-R280-02B is based on the following criteria derived from the provided parameters:

Primary Substitution Criteria:

• Manufacturer: u-blox (same manufacturer ensures design compatibility and firmware ecosystem alignment)
• RF Family/Standard: Cellular (maintains application category)
• Mounting Type: Surface Mount (preserves PCB assembly compatibility)
• Package/Case: 100-SMD Module (ensures physical and electrical footprint compatibility)
• Operating Temperature Range: -40°C ~ 85°C (matches thermal operating envelope)
• Moisture Sensitivity Level: 4 (72 Hours) (maintains handling and storage requirements)

Secondary Compatibility Parameters:

• Serial Interfaces: GPIO, I2C, UART, USB (core interfaces present in all candidates)
• Data Rate: 10.3Mbps (consistent across all parts)
• RoHS Compliance Status: All substitute parts meet or exceed RoHS requirements

The substitute parts LARA-R6001-00B and LARA-R6801-00B are both active-status modules from the LARA-R6 series. These parts extend frequency band coverage and protocol support (GSM, LTE, WCDMA) while maintaining the core electrical and mechanical specifications required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The LARA-R280-02B is classified as obsolete. Both substitute parts, LARA-R6001-00B and LARA-R6801-00B, maintain active product status with u-blox, ensuring ongoing technical support, documentation availability, and supply chain continuity.

Compliance and Certification: All three parts maintain RoHS compliance. The substitute parts achieve ROHS3 Compliant status, representing current regulatory alignment. Both substitute parts carry REACH Unaffected designation, confirming compliance with chemical substance restrictions.

Electrical Compatibility: The substitute parts operate within an expanded voltage supply range (2.8V ~ 4.5V) that encompasses the original part's range (3.3V ~ 4.4V). Current specifications for the substitute parts are provided as ranges (50mA ~ 630mA), which include the original part's fixed 540mA specification. Both substitute parts maintain the same 10.3Mbps data rate and -40°C to 85°C operating temperature envelope.

Frequency Band Coverage: The LARA-R6001-00B and LARA-R6801-00B extend frequency band support beyond the original LARA-R280-02B. All frequency bands supported by the original part (700MHz, 900MHz, 1.8GHz, 2.1GHz) are included in both substitute parts, with additional bands available for enhanced regional coverage.

Interface Compatibility: The original part supports GPIO, I2C, SDIO, UART, and USB interfaces. Both substitute parts support GPIO, I2C, UART, and USB. The SDIO interface present in the original part is not listed for the substitutes; applications requiring SDIO functionality require design review.

Packaging and Handling: All parts utilize 100-SMD Module packaging with identical MSL 4 (72 Hours) moisture sensitivity specifications, ensuring equivalent handling, storage, and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can LARA-R6001-00B or LARA-R6801-00B be used as direct replacements for LARA-R280-02B?

A: Both parts are compatible substitutes based on matching RF family, mounting type, package configuration, operating temperature range, and moisture sensitivity level. The substitute parts support all frequency bands of the original part and maintain the same data rate and operating temperature envelope. However, applications utilizing the SDIO interface require design modification, as this interface is not available on the substitute parts.

Q: What is the difference between LARA-R6001-00B and LARA-R6801-00B?

A: Both parts are from the LARA-R6 series and share identical electrical specifications, voltage supply range, current consumption ranges, operating temperature, and interface support. The primary difference is frequency band coverage: LARA-R6001-00B supports 700MHz, 800MHz, 850MHz, 900MHz, 1.7GHz, 1.8GHz, 1.9GHz, 2.1GHz, 2.3GHz, and 2.6GHz, while LARA-R6801-00B supports 700MHz, 800MHz, 850MHz, 900MHz, 1.7GHz, 1.8GHz, 1.9GHz, 2.1GHz, and 2.6GHz (excludes 2.3GHz).

Q: Are there packaging differences between the original and substitute parts?

A: The original LARA-R280-02B is supplied in standard packaging. The substitute parts LARA-R6001-00B and LARA-R6801-00B are supplied in Tape & Reel (TR) packaging. Both packaging formats are compatible with automated assembly processes and maintain identical MSL 4 (72 Hours) moisture sensitivity specifications.

Q: What is the sensitivity difference between the original and substitute parts?

A: The LARA-R280-02B specifies -111.5dBm sensitivity, while both substitute parts specify -110dBm sensitivity. This 1.5dB difference represents a minor variation in receiver performance and does not preclude substitution for most applications.

Q: Do the substitute parts support the same protocols as the original?

A: The original LARA-R280-02B supports 3G and 4G LTE protocols. The substitute parts support GSM, LTE, and WCDMA protocols. WCDMA is a 3G standard, and LTE is a 4G standard, providing protocol coverage equivalent to or exceeding the original part. Applications requiring specific protocol support should verify compatibility with the substitute part's protocol set.

Q: What is the power output specification for the substitute parts?

A: Both LARA-R6001-00B and LARA-R6801-00B specify 33dBm power output. The original LARA-R280-02B does not provide a power output specification in the available data.

Q: Are there any interface compatibility concerns?

A: The original part includes SDIO (Secure Digital Input/Output) interface support, which is not listed for the substitute parts. Applications relying on SDIO functionality require design modification or alternative component selection. Both substitute parts support GPIO, I2C, UART, and USB interfaces, which are present in the original part.

Q: What is the inventory status of these parts?

A: The original LARA-R280-02B has 796 pieces in stock. LARA-R6001-00B has 7,929 pieces in stock, and LARA-R6801-00B has 9,119 pieces in stock, providing substantial availability for production requirements.