RX5501 Equivalent & Substitute Parts

Part Overview

The RX5501 is an RF receiver module manufactured by Murata Electronics, designed for ASK/OOK modulation at 315MHz with a sensitivity of -110.5dBm and maximum data rate of 19.2kbps. The device is packaged in a 20-SMD surface mount module and operates across a supply voltage range of 2.2V to 3.7V with a receiving current of 3.1mA.

The RX5501 has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this RF receiver.

Substiute Parts

RX5501

Murata ElectronicsIn Stock: 905RX5501 Datasheet

Current PartRFQ

ATA8201C-PXQW-1

Microchip TechnologyIn Stock: 1151ATA8201C-PXQW-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RX5501 is determined by the following critical parameters:

Frequency Compatibility: The substitute must operate at 315MHz to maintain RF compatibility with existing antenna and filter designs.

Modulation Support: The substitute must support ASK modulation as a minimum requirement. The RX5501 supports both ASK and OOK; substitutes supporting ASK with additional modulation types (such as FSK) are acceptable.

Sensitivity and Data Rate: The substitute sensitivity must meet or exceed -110.5dBm, and the maximum data rate must support or exceed 19.2kbps to ensure signal reception performance.

Supply Voltage Range: The substitute must operate within or be compatible with the 2.2V to 3.7V supply range. Substitutes with overlapping or contained voltage ranges are acceptable.

Operating Temperature: The substitute must maintain the -40°C to 85°C operating temperature range.

Mounting Type: The substitute must be surface mount compatible to align with PCB assembly processes.

The ATA8201C-PXQW-1 meets these substitution criteria and is identified as a manufacturer-recommended substitute.

Parameter Comparison

Engineering Selection Recommendations

The ATA8201C-PXQW-1 is an active product from Microchip Technology and serves as the manufacturer-recommended substitute for the obsolete RX5501. This substitute maintains 315MHz frequency operation and supports ASK modulation, ensuring RF compatibility with existing system designs.

The ATA8201C-PXQW-1 provides improved sensitivity at -114dBm compared to the RX5501 at -110.5dBm, and supports a marginally higher data rate of 20kbps versus 19.2kbps. The substitute operates within a narrower supply voltage range of 2.7V to 3.3V, which is contained within the RX5501 range and suitable for standard 3.3V logic systems.

The receiving current of the ATA8201C-PXQW-1 is 6.5mA, approximately double that of the RX5501 at 3.1mA. This increased current consumption must be evaluated against power budget requirements in battery-powered or low-power applications.

The ATA8201C-PXQW-1 is packaged in a 24-VQFN format, requiring PCB layout modifications compared to the 20-SMD module package of the RX5501. The substitute is RoHS3 compliant and carries REACH Unaffected status, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the ATA8201C-PXQW-1 directly replace the RX5501 without design changes?

A: The ATA8201C-PXQW-1 maintains functional compatibility at 315MHz with ASK modulation support. However, the package format differs (24-VQFN versus 20-SMD Module), requiring PCB layout and footprint modifications. Pin configuration and signal interface must be verified against application schematics.

Q: What is the impact of the increased receiving current in the ATA8201C-PXQW-1?

A: The ATA8201C-PXQW-1 draws 6.5mA during reception compared to 3.1mA for the RX5501. In continuous operation or battery-powered applications, this represents approximately 110% additional current consumption. Power supply and battery life calculations must be updated accordingly.

Q: Is the narrower supply voltage range of the ATA8201C-PXQW-1 a limitation?

A: The ATA8201C-PXQW-1 operates from 2.7V to 3.3V, which is narrower than the RX5501 range of 2.2V to 3.7V. If the application requires operation below 2.7V or above 3.3V, the substitute is not suitable. For standard 3.3V systems, this range is acceptable.

Q: Does the improved sensitivity of the ATA8201C-PXQW-1 provide practical benefits?

A: The ATA8201C-PXQW-1 sensitivity of -114dBm exceeds the RX5501 at -110.5dBm by 4.6dB, providing improved reception margin in weak signal conditions. This enhancement is beneficial for range extension or operation in RF-constrained environments.

Q: What compliance certifications apply to the ATA8201C-PXQW-1?

A: The ATA8201C-PXQW-1 is RoHS3 compliant and REACH Unaffected. These certifications align with current environmental and regulatory requirements for electronic components in most markets.