RN52-I/RM Equivalent & Substitute Parts

Part Overview

The RN52-I/RM is a Bluetooth v3.0, Class 2 transceiver module manufactured by Microchip Technology, designed for 2.4GHz RF applications with integrated trace antenna. This module features 3Mbps data rate capability and is configured for surface mount deployment in compact form factors.

The RN52-I/RM is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance where component replacement or redesign is required.

Substiute Parts

RN52-I/RM

Microchip TechnologyIn Stock: 1530RN52-I/RM Datasheet

Current PartRFQ

BM83SM1-00AB

Microchip TechnologyIn Stock: 1138BM83SM1-00AB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN52-I/RM is determined by the following critical parameters:

• RF Standard Compatibility: Both parts must operate within the Bluetooth 2.4GHz ISM band
• Mounting Configuration: Surface mount 50-SMD module form factor
• Supply Voltage Range: Operating voltage envelope must accommodate system design
• Serial Interface Support: Availability of required communication protocols (UART, SPI, I2S, USB)
• Antenna Configuration: Integrated or PCB trace antenna types suitable for the application
• Regulatory Compliance: RoHS3 and REACH compliance status
• Operating Temperature Range: -40°C to 85°C operational envelope

The BM83SM1-00AB meets these substitution criteria as a Microchip Technology Bluetooth transceiver module with compatible form factor, regulatory compliance, and operational temperature range.

Parameter Comparison

Engineering Selection Recommendations

The BM83SM1-00AB is the manufacturer-recommended substitute for the RN52-I/RM. Both components are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for electronic component deployment.

The BM83SM1-00AB maintains identical package form factor (50-SMD Module) and operating temperature range (-40°C to 85°C), enabling direct physical replacement in existing PCB layouts. The substitute part is currently in active production status, ensuring long-term supply chain availability compared to the obsolete RN52-I/RM.

Voltage supply ranges overlap between 3.2V and 3.6V. Applications operating at the lower end of the RN52-I/RM supply range (3.0V to 3.2V) require design verification to confirm BM83SM1-00AB compatibility.

Current consumption differs between the two modules. The BM83SM1-00AB exhibits higher receive current (38.5mA to 49mA versus 30mA) and variable transmit current (22mA to 59mA versus 30mA). Power budget analysis is necessary for battery-powered or current-limited applications.

Frequently Asked Questions (FAQ)

Q: Can the BM83SM1-00AB directly replace the RN52-I/RM in existing designs?

A: Physical replacement is possible due to identical 50-SMD module packaging and operating temperature range. However, electrical parameter differences require design verification, particularly for supply voltage at the lower end of the RN52-I/RM range and for applications with strict current consumption limits.

Q: What are the key differences in RF performance between these modules?

A: The BM83SM1-00AB provides superior RF characteristics: 11dBm output power versus 4dBm, and -90dBm sensitivity versus -85dBm. The RN52-I/RM supports higher data rate (3Mbps versus 2Mbps). Both operate within the 2.4GHz Bluetooth band with compatible frequency coverage.

Q: Are there supply voltage compatibility concerns?

A: The RN52-I/RM operates at 3V to 3.6V, while the BM83SM1-00AB requires 3.2V to 4.2V. The overlap range is 3.2V to 3.6V. Systems designed for 3.0V to 3.2V operation must be re-evaluated for BM83SM1-00AB compatibility.

Q: How do current consumption differences affect system design?

A: The BM83SM1-00AB draws higher receive current (38.5mA to 49mA) compared to the RN52-I/RM (30mA). Transmit current ranges from 22mA to 59mA. Power supply and battery capacity calculations must be recalculated for the substitute part.

Q: What is the antenna configuration difference?

A: The RN52-I/RM uses an integrated trace antenna, while the BM83SM1-00AB uses a PCB trace antenna. Both are integrated antenna solutions suitable for compact form factors. PCB layout considerations for antenna routing may differ between modules.

Q: Are both parts compliant with current regulatory standards?

A: Both the RN52-I/RM and BM83SM1-00AB are ROHS3 compliant and REACH unaffected. The BM83SM1-00AB, being in active production, maintains current compliance status. The RN52-I/RM, as an obsolete part, may have limited compliance verification support.