WiFi 802.11b/g/n Transceiver Module 113990108 Equivalent & Substitute Parts

Part Overview

The Seeed Technology Co., Ltd model 113990108 is a WiFi 802.11b/g/n transceiver module with integrated trace antenna for 2.4GHz applications. This component integrates RF transmission and reception functionality in a surface mount module package with SPI and UART serial interfaces.

The 113990108 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this module.

Substiute Parts

113990108

Seeed Technology Co., LtdIn Stock: 1172113990108 Datasheet

Current PartRFQ

ATSAMW25H18-MR210PB

Microchip TechnologyIn Stock: 1964ATSAMW25H18-MR210PB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 113990108 is determined by the following critical parameters:

Core Functional Requirements:

• RF Family/Standard: WiFi
• Protocol: 802.11b/g/n
• Frequency: 2.4GHz
• Serial Interfaces: SPI, UART
• Antenna Type: Integrated, Trace
• Mounting Type: Surface Mount
• Package / Case: Module

Electrical Compatibility Criteria:

• Voltage - Supply range must accommodate or exceed the original 3V ~ 3.6V specification
• Power - Output and Sensitivity must meet or exceed the original performance levels
• RF transmission and reception characteristics must support the same protocol standards

The ATSAMW25H18-MR210PB from Microchip Technology satisfies all core functional requirements and maintains compatibility with the 802.11b/g/n protocol, 2.4GHz frequency band, SPI/UART interfaces, integrated trace antenna configuration, and surface mount module package format.

Parameter Comparison

Engineering Selection Recommendations

The ATSAMW25H18-MR210PB is a direct functional substitute for the obsolete 113990108 based on the following engineering criteria:

Protocol and Frequency Compatibility: Both modules operate on the 802.11b/g/n standard at 2.4GHz, ensuring compatibility with existing RF designs and network infrastructure.

Interface Compatibility: Both modules provide SPI and UART serial interfaces, supporting identical host processor communication protocols.

Physical and Electrical Compatibility: Both modules are surface mount packages in module form factor with integrated trace antennas. The ATSAMW25H18-MR210PB voltage supply range (3V ~ 4.3V) encompasses the original specification (3V ~ 3.6V), ensuring power supply compatibility.

Performance Enhancement: The ATSAMW25H18-MR210PB provides improved RF performance with higher output power (18.5dBm versus 16.5dBm) and superior receiver sensitivity (-98dBm versus -87dBm).

Product Status and Compliance: The ATSAMW25H18-MR210PB is active in production with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the ATSAMW25H18-MR210PB directly replace the 113990108 in existing designs?

A: Yes. Both modules share identical protocol support (802.11b/g/n), frequency band (2.4GHz), serial interfaces (SPI, UART), antenna configuration (integrated trace), and package format (surface mount module). The ATSAMW25H18-MR210PB voltage supply range is compatible with the original specification.

Q: What are the key differences between these modules?

A: The ATSAMW25H18-MR210PB provides enhanced RF performance (18.5dBm output versus 16.5dBm, -98dBm sensitivity versus -87dBm), extended voltage supply range (3V ~ 4.3V versus 3V ~ 3.6V), and is currently in active production with ROHS3 compliance. The original 113990108 is obsolete.

Q: Are there any moisture sensitivity considerations?

A: The 113990108 has MSL 1 (unlimited moisture sensitivity), while the ATSAMW25H18-MR210PB has MSL 3 (168 hours). Standard surface mount assembly and storage practices for MSL 3 components are required.

Q: Do both modules support the same data rates and modulation?

A: Both modules support 802.11b/g/n protocols. The ATSAMW25H18-MR210PB specifies DSSS and OFDM modulation with 72.2Mbps data rate capability.

Q: What is the inventory status of these parts?

A: The 113990108 has 1084 pieces in stock (obsolete status). The ATSAMW25H18-MR210PB has 1890 pieces in stock with active product status.