MICRF022YM-FS48 Equivalent & Substitute Parts

Part Overview

The MICRF022YM-FS48 is an RF receiver module designed for ASK/OOK modulation in the 300–440 MHz frequency band. Manufactured by Microchip Technology, this surface-mount component operates at -97 dBm sensitivity with a maximum data rate of 10 kbps, making it suitable for remote keyless entry (RKE) applications. The device is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts may be required due to inventory constraints, application-specific frequency requirements, or performance optimization needs within compatible electrical and mechanical parameters.

Key Parameters

Parameter	Value
Manufacturer Part Number	MICRF022YM-FS48
Manufacturer	Microchip Technology
Frequency Range	300 MHz – 440 MHz
Sensitivity	-97 dBm
Data Rate (Max)	10 kbps
Modulation Protocol	ASK, OOK
Supply Voltage	4.75 V – 5.5 V
Receiving Current	2.2 mA
Operating Temperature	-40°C – 85°C
Mounting Type	Surface Mount
Package	8-SOIC (0.154", 3.90 mm Width)
Product Status	Active
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MICRF022YM-FS48 is determined by the following critical parameters:

Frequency Compatibility: The substitute must operate within or overlap the 300–440 MHz band, or support the specific application frequency (e.g., 433.92 MHz for ISM applications).
Modulation Support: ASK/OOK or equivalent digital modulation protocols.
Sensitivity Performance: Minimum -97 dBm or better to maintain signal reception capability.
Data Rate: Support for 10 kbps or higher.
Supply Voltage Range: Overlap with 4.75 V – 5.5 V operating window.
Mounting & Package: Surface-mount technology compatible with PCB integration.
Regulatory Compliance: ROHS3 compliance and equivalent certifications (REACH Unaffected, EAR99).
Operating Temperature: Coverage of -40°C – 85°C or extended range.

The MICRF230YQS meets these criteria as a manufacturer-recommended substitute, with enhanced sensitivity (-112 dBm) and higher data rate capability (20 kbps), though it operates at a fixed ISM frequency (433.92 MHz) rather than the broader 300–440 MHz range.

Parameter Comparison

Parameter	MICRF022YM-FS48	MICRF230YQS
Manufacturer	Microchip Technology	Microchip Technology
Frequency	300 MHz – 440 MHz	433.92 MHz
Sensitivity	-97 dBm	-112 dBm
Data Rate (Max)	10 kbps	20 kbps
Modulation Protocol	ASK, OOK	ISM
Supply Voltage	4.75 V – 5.5 V	4.6 V – 5.5 V
Receiving Current	2.2 mA	6 mA
Operating Temperature	-40°C – 85°C	-40°C – 105°C
Mounting Type	Surface Mount	Surface Mount
Package	8-SOIC (0.154", 3.90 mm Width)	16-QSOP (0.154", 3.90 mm Width)
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both the MICRF022YM-FS48 and MICRF230YQS are active-status products manufactured by Microchip Technology with identical ROHS3 compliance and MSL ratings. Selection between these components depends on application-specific requirements:

MICRF022YM-FS48 is appropriate for applications requiring tunable frequency operation across the 300–440 MHz band with lower power consumption (2.2 mA receiving current) and an 8-pin package footprint.

MICRF230YQS is appropriate for fixed-frequency ISM band applications (433.92 MHz) where enhanced sensitivity (-112 dBm) and higher data rate capability (20 kbps) provide performance advantages. The extended operating temperature range (-40°C – 105°C) supports broader environmental conditions. The 16-pin package requires additional PCB layout space.

Both components maintain equivalent regulatory certifications (EAR99, REACH Unaffected) and are suitable for direct substitution within their respective frequency and performance constraints.

Frequently Asked Questions (FAQ)

Q: Can the MICRF230YQS replace the MICRF022YM-FS48 in all applications?

A: The MICRF230YQS is suitable only for applications operating at 433.92 MHz. The MICRF022YM-FS48 supports the broader 300–440 MHz range, allowing frequency tuning. If your application requires operation outside 433.92 MHz, the MICRF022YM-FS48 is the correct choice.

Q: What are the package differences between these parts?

A: The MICRF022YM-FS48 uses an 8-SOIC package with 8 pins, while the MICRF230YQS uses a 16-QSOP package with 16 pins. Both maintain the same 0.154" (3.90 mm) width. PCB layout and pinout must be verified before substitution.

Q: Does the MICRF230YQS provide better performance?

A: The MICRF230YQS offers improved sensitivity (-112 dBm vs. -97 dBm) and higher data rate support (20 kbps vs. 10 kbps). However, it draws higher receiving current (6 mA vs. 2.2 mA) and operates at a fixed frequency. Performance improvement is application-dependent.

Q: Are both parts RoHS compliant?

A: Yes. Both the MICRF022YM-FS48 and MICRF230YQS are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the voltage compatibility between these parts?

A: The MICRF022YM-FS48 operates at 4.75 V – 5.5 V, while the MICRF230YQS operates at 4.6 V – 5.5 V. The MICRF230YQS has a wider lower voltage tolerance. Both are compatible with standard 5 V supply systems.

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