MICRF005BM TR Equivalent & Substitute Parts

Part Overview

The MICRF005BM 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 system support and new design implementations. 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 layouts for wireless applications including game controllers.

Key Parameters

Parameter	MICRF005BM 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	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MICRF005BM TR is determined by alignment across the following critical parameters:

Modulation Compatibility: The substitute must support OOK modulation. The MICRF221AYQS supports both ASK and OOK, satisfying this requirement.

Frequency Band Overlap: The original part operates 800MHz ~ 1GHz. The substitute operates 850MHz ~ 950MHz, providing partial overlap within the 850MHz to 950MHz range.

Surface Mount Integration: Both parts use surface mount technology with PCB-based antenna connections, maintaining design compatibility.

Operating Temperature Range: Both parts operate across -40°C to 85°C, ensuring thermal compatibility.

Supply Voltage Difference: The original requires 4.75V ~ 5.3V while the substitute requires 3V ~ 3.6V. This represents a significant difference requiring circuit redesign for voltage regulation or supply adjustment.

Package Difference: The original uses 14-SOIC while the substitute uses 16-QSOP, necessitating PCB layout modifications.

Parameter Comparison

Parameter	MICRF005BM TR	MICRF221AYQS	Notes
Frequency Range	800MHz ~ 1GHz	850MHz ~ 950MHz	Partial overlap; substitute covers narrower band
Sensitivity	-84dBm	-109dBm	Substitute offers improved sensitivity
Data Rate (Max)	115kbps	10kbps	Substitute supports lower data rates
Modulation	OOK	ASK, OOK	Substitute supports both modulation types
Supply Voltage	4.75V ~ 5.3V	3V ~ 3.6V	Different voltage requirements
Current - Receiving	10mA	9.3mA	Substitute draws slightly less current
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Identical range
Package	14-SOIC	16-QSOP	Different package footprints
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Substitute meets current RoHS requirements

Engineering Selection Recommendations

The MICRF221AYQS is the manufacturer-recommended substitute for the obsolete MICRF005BM TR. Selection of this substitute requires evaluation of the following factors:

Compliance Advantage: The MICRF221AYQS achieves ROHS3 compliance, addressing regulatory requirements that the original part does not meet.

Frequency Band Consideration: Applications operating exclusively within the 850MHz to 950MHz range can utilize the substitute without modification. Applications requiring full 800MHz to 1GHz coverage must retain the original part or identify alternative solutions.

Supply Voltage Redesign: Circuit modifications are necessary to accommodate the 3V to 3.6V supply requirement of the substitute, as opposed to the original 4.75V to 5.3V specification.

Data Rate Limitation: The substitute supports a maximum data rate of 10kbps compared to the original 115kbps. Applications requiring higher data rates cannot use this substitute.

Package Footprint Change: PCB layout redesign is required due to the transition from 14-SOIC to 16-QSOP packaging.

Frequently Asked Questions (FAQ)

Q: Can the MICRF221AYQS directly replace the MICRF005BM TR without PCB modifications?

A: No. The substitute requires modifications to accommodate different supply voltage (3V ~ 3.6V versus 4.75V ~ 5.3V), different package footprint (16-QSOP versus 14-SOIC), and lower maximum data rate (10kbps versus 115kbps).

Q: What frequency range does the MICRF221AYQS cover?

A: The MICRF221AYQS operates in the 850MHz to 950MHz band. This represents a subset of the original part's 800MHz to 1GHz range. Applications requiring coverage below 850MHz or above 950MHz cannot use this substitute.

Q: Does the MICRF221AYQS support OOK modulation?

A: Yes. The MICRF221AYQS supports both ASK and OOK modulation, meeting the modulation requirement of the original part.

Q: What is the sensitivity difference between these parts?

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

Q: Are there compliance differences between these parts?

A: Yes. The MICRF005BM TR is RoHS non-compliant, while the MICRF221AYQS is ROHS3 compliant. Both parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: What is the package difference?

A: The original part uses a 14-SOIC package with 0.154" width (3.90mm). The substitute uses a 16-QSOP package with the same 0.154" width (3.90mm) but different pin configuration and count, requiring PCB layout redesign.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message