MICRF005YM TR Equivalent & Substitute Parts

Part Overview

The MICRF005YM TR is an RF receiver module designed for OOK (On-Off Keying) modulation in the 800MHz to 1GHz frequency band. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The module integrates automatic tuning functionality and operates from a 4.75V to 5.3V supply, delivering -84dBm sensitivity at a maximum data rate of 115kbps. Surface mount integration in a 14-SOIC package supports compact PCB implementations for wireless applications such as game controllers.

Key Parameters

Parameter	MICRF005YM TR
Frequency Range	800MHz ~ 1GHz
Sensitivity	-84dBm
Data Rate (Max)	115kbps
Modulation	OOK
Supply Voltage	4.75V ~ 5.3V
Current - Receiving	10mA
Operating Temperature	-40°C ~ 85°C
Package	14-SOIC
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MICRF005YM TR is determined by alignment across the following critical parameters:

Modulation Support: The substitute must support OOK modulation, as this is the primary protocol for the original component.

Frequency Compatibility: While the original operates at 800MHz ~ 1GHz, substitute parts may operate within adjacent or overlapping frequency bands (850MHz ~ 950MHz) provided the target application frequency falls within the substitute's specified range.

Sensitivity and Data Rate: The substitute MICRF221AYQS provides superior sensitivity (-109dBm versus -84dBm) but operates at a reduced maximum data rate (10kbps versus 115kbps). This trade-off is acceptable only if the application does not require the full 115kbps throughput.

Supply Voltage: The original requires 4.75V ~ 5.3V, while the substitute operates at 3V ~ 3.6V. This represents a significant difference requiring circuit redesign and is a limiting factor for direct substitution in existing designs.

Package and Mounting: Both components use surface mount technology. The original uses 14-SOIC packaging while the substitute uses 16-QSOP packaging, necessitating PCB layout modifications.

Compliance: Both components meet ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Parameter Comparison

Parameter	MICRF005YM TR	MICRF221AYQS	Notes
Frequency Range	800MHz ~ 1GHz	850MHz ~ 950MHz	Overlapping range 850MHz ~ 950MHz
Sensitivity	-84dBm	-109dBm	Substitute offers 25dB improvement
Data Rate (Max)	115kbps	10kbps	Substitute operates at lower throughput
Modulation	OOK	ASK, OOK	Substitute supports both ASK and OOK
Supply Voltage	4.75V ~ 5.3V	3V ~ 3.6V	Different supply requirements
Current - Receiving	10mA	9.3mA	Comparable power consumption
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Identical range
Package	14-SOIC	16-QSOP	Different pin counts and footprints
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Both compliant
Moisture Sensitivity Level	3 (168 Hours)	1 (Unlimited)	Substitute has lower MSL

Engineering Selection Recommendations

The MICRF221AYQS is the manufacturer-recommended substitute for the obsolete MICRF005YM TR. However, substitution requires careful evaluation of application requirements:

Frequency Alignment: Confirm that the target application operates within the 850MHz ~ 950MHz band. If the original design requires operation above 950MHz or below 850MHz, this substitute is not suitable.

Data Rate Requirements: Applications requiring throughput exceeding 10kbps cannot use the MICRF221AYQS. The original 115kbps capability is not matched by this substitute.

Supply Voltage Redesign: The shift from 4.75V ~ 5.3V to 3V ~ 3.6V requires power supply circuit modifications. Existing 5V designs must be re-engineered to accommodate the lower voltage requirement.

PCB Layout Modification: The change from 14-SOIC to 16-QSOP packaging necessitates new PCB layout and component placement. Pin assignments must be verified against the respective datasheets.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs.

Frequently Asked Questions (FAQ)

Q: Can the MICRF221AYQS directly replace the MICRF005YM TR on existing PCBs?

A: No. The MICRF221AYQS uses a 16-QSOP package versus the 14-SOIC package of the original, requiring PCB redesign. Additionally, the supply voltage differs (3V ~ 3.6V versus 4.75V ~ 5.3V), necessitating power supply circuit modifications.

Q: What is the primary limitation when substituting to the MICRF221AYQS?

A: The maximum data rate is reduced from 115kbps to 10kbps. Applications requiring higher throughput cannot use this substitute.

Q: Are there frequency band differences between these components?

A: Yes. The original operates at 800MHz ~ 1GHz, while the substitute operates at 850MHz ~ 950MHz. The overlapping range is 850MHz ~ 950MHz. Verify that your application frequency falls within this overlap.

Q: Do both components meet the same regulatory standards?

A: Yes. Both the MICRF005YM TR and MICRF221AYQS are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What is the sensitivity difference between these parts?

A: The MICRF221AYQS provides -109dBm sensitivity compared to -84dBm for the original, representing a 25dB improvement in receiver sensitivity.

Q: Is the MICRF221AYQS suitable for wireless game controller applications?

A: Suitability depends on the specific application requirements. If the design operates within the 850MHz ~ 950MHz band and does not require data rates exceeding 10kbps, the substitute is viable. Power supply and PCB layout modifications are mandatory.

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