Seeed Technology 114990772 RF TXRX Module - Equivalent & Substitute Parts

Part Overview

The Seeed Technology 114990772 is a Bluetooth and WiFi 802.11a/b/g/n transceiver module operating at 2.4GHz with integrated trace antenna in surface mount packaging. This module integrates the ESP32 IC and supports Bluetooth v4.2 protocol with 150Mbps data rate capability. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

114990772

Seeed Technology Co., LtdIn Stock: 977114990772 Datasheet

Current PartRFQ

3320

Adafruit Industries LLCIn Stock: 8813320 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Seeed Technology 114990772 is determined by the following critical parameters:

RF Compatibility Parameters:

• RF Family/Standard: Bluetooth and WiFi support required
• Protocol: 802.11a/b/g/n and Bluetooth v4.2 support required
• Frequency: 2.4GHz operation required
• Data Rate: 150Mbps minimum required
• Sensitivity: -98dBm or better required

Electrical Parameters:

• Utilized IC: ESP32 required
• Serial Interfaces: I2C, I2S, SPI, UART support required
• Voltage Supply: Compatible range with 3V ~ 3.6V operation
• Current Consumption: Receiving and transmitting current specifications

Physical Parameters:

• Mounting Type: Surface Mount required
• Antenna Type: Integrated trace antenna required
• Package/Case: Module form factor required

Environmental Parameters:

• Operating Temperature: Minimum -40°C to 125°C range required
• Moisture Sensitivity Level: MSL 1 (Unlimited) required

The Adafruit Industries LLC part number 3320 meets all critical substitution criteria within the allowed parameter tolerances.

Parameter Comparison

Engineering Selection Recommendations

Adafruit Industries LLC Part Number 3320 as Primary Substitute:

The Adafruit 3320 qualifies as a direct functional equivalent to the Seeed 114990772 based on matching RF protocols, data rates, sensitivity specifications, serial interface support, and physical form factor. Both modules utilize the ESP32 IC and support identical communication standards.

Compliance and Status Considerations:

The Adafruit 3320 holds Active product status, ensuring ongoing availability and manufacturer support, whereas the Seeed 114990772 is classified as Obsolete. The Adafruit part carries RoHS3 compliance certification, meeting current environmental regulatory requirements.

Parameter Variance Analysis:

The Adafruit 3320 operates across an extended frequency range (2.4GHz ~ 2.5GHz) compared to the Seeed part (2.4GHz), providing broader operational capability. The voltage supply range of the Adafruit part (2.2V ~ 3.6V) encompasses the Seeed specification (3V ~ 3.6V), offering greater flexibility in power supply design.

Current consumption in the Adafruit 3320 is lower in both receiving (80mA) and transmitting (80mA) modes compared to the Seeed module (90mA each), resulting in reduced power demand.

Temperature Range Consideration:

The Adafruit 3320 specifies an operating temperature range of -40°C ~ 85°C, which is narrower than the Seeed 114990772 range of -40°C ~ 125°C. Applications requiring operation above 85°C must evaluate this specification difference against system requirements.

Frequently Asked Questions (FAQ)

Q: Can the Adafruit 3320 directly replace the Seeed 114990772 in existing designs?

A: The Adafruit 3320 is functionally equivalent across RF protocols, data rates, sensitivity, serial interfaces, and physical mounting. Pin-level compatibility and PCB layout verification are required for direct substitution. The narrower operating temperature range (-40°C ~ 85°C versus -40°C ~ 125°C) must be evaluated for specific applications.

Q: What are the key electrical differences between these modules?

A: The Adafruit 3320 accepts a wider input voltage range (2.2V ~ 3.6V) compared to the Seeed 114990772 (3V ~ 3.6V). Current consumption is lower in the Adafruit part: 80mA receiving and transmitting versus 90mA for the Seeed module. Both modules operate at identical RF specifications and sensitivity levels.

Q: Are there packaging differences between the Seeed and Adafruit modules?

A: Both modules use surface mount packaging in module form factor with integrated trace antennas. The Seeed part is packaged as "-" while the Adafruit part is packaged as Bulk. Physical dimensions and PCB footprint compatibility must be confirmed through detailed datasheets.

Q: What compliance certifications apply to the Adafruit 3320?

A: The Adafruit 3320 carries RoHS3 compliance certification. Both modules have MSL 1 (Unlimited) moisture sensitivity rating. ECCN and HTSUS classifications differ between the parts and must be verified for export and import compliance requirements.

Q: Why is the Seeed 114990772 listed as obsolete?

A: The Seeed 114990772 has reached end-of-life status. The Adafruit 3320 maintains Active product status with ongoing manufacturer support and availability, making it the recommended alternative for new designs and ongoing component procurement.

Q: How do the frequency specifications compare?

A: The Seeed 114990772 operates at 2.4GHz. The Adafruit 3320 operates across 2.4GHz ~ 2.5GHz, providing extended frequency coverage. Both support identical WiFi 802.11a/b/g/n and Bluetooth v4.2 protocols within their respective frequency ranges.