MICRF219AYQS-TR Equivalent & Substitute Parts

Part Overview

The MICRF219AYQS-TR is an RF receiver module manufactured by Microchip Technology, designed for ASK and OOK modulation schemes in the 300MHz to 450MHz frequency band. This surface-mount component operates at 3V to 3.6V supply voltage with a sensitivity of -110dBm and supports data rates up to 10kbps. The part is Active status and ROHS3 compliant, making it suitable for industrial and consumer RF applications requiring low-power reception in the UHF band.

Equivalent and substitute parts are identified when designs require alternative sourcing, improved performance specifications, or different packaging configurations while maintaining functional compatibility within the same frequency band and modulation protocol.

Substiute Parts

MICRF219AYQS-TR

Microchip TechnologyIn Stock: 1160MICRF219AYQS-TR Datasheet

Current PartRFQ

MICRF219AAYQS

Microchip TechnologyIn Stock: 2603MICRF219AAYQS Datasheet

DirectRFQ

MICRF220AYQS-TR

Microchip TechnologyIn Stock: 33487MICRF220AYQS-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MICRF219AYQS-TR is determined by the following critical parameters:

• Frequency band compatibility (300MHz ~ 450MHz)
• Modulation support (ASK, OOK protocols)
• Supply voltage range (3V ~ 3.6V)
• Package type (16-SSOP surface mount)
• Operating temperature range (-40°C ~ 105°C)
• RoHS and regulatory compliance status

Two substitute parts meet these core criteria: MICRF219AAYQS and MICRF220AYQS-TR. Both are manufactured by Microchip Technology and share the same frequency band, modulation protocols, voltage requirements, package configuration, and compliance certifications. Variations in sensitivity, data rate, receiving current, and packaging format represent the primary differences between the main part and substitutes.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and full ROHS3 compliance with REACH unaffected designation, ensuring regulatory compatibility across applications.

MICRF219AAYQS offers improved sensitivity (-112.5dBm versus -110dBm) and reduced receiving current (4.3mA versus 6mA), making it suitable for power-constrained applications. This part is available in Tube packaging format.

MICRF220AYQS-TR provides the highest data rate capability (20kbps versus 10kbps) with equivalent sensitivity improvement (-112.5dBm) and maintains the same receiving current as the main part (6mA). This part is available in Cut Tape and Digi-Reel® packaging formats, offering flexible procurement options.

Selection between substitutes depends on application requirements for data rate throughput and power consumption constraints, balanced against packaging and inventory availability considerations.

Frequently Asked Questions (FAQ)

Q: Can MICRF219AAYQS replace MICRF219AYQS-TR in existing designs?

A: Yes. Both parts share identical frequency range (300MHz ~ 450MHz), modulation protocols (ASK, OOK), supply voltage (3V ~ 3.6V), package type (16-SSOP), and operating temperature range (-40°C ~ 105°C). MICRF219AAYQS provides superior sensitivity (-112.5dBm) and lower receiving current (4.3mA), making it functionally compatible and performance-enhanced for the same PCB layout.

Q: What are the differences between MICRF220AYQS-TR and MICRF219AYQS-TR?

A: Both parts operate in the same frequency band with identical supply voltage and package configuration. MICRF220AYQS-TR supports higher data rates (20kbps versus 10kbps) and offers improved sensitivity (-112.5dBm versus -110dBm). Receiving current remains equivalent at 6mA. The MICRF220 series includes RSSI (Received Signal Strength Indicator) functionality and is marketed under the QwikRadio® product line.

Q: Are packaging differences significant for PCB assembly?

A: No. All three parts use identical 16-SSOP surface-mount packages (0.154", 3.90mm width). Packaging format differences (Digi-Reel®, Tube, Cut Tape) affect procurement and handling only, not PCB footprint or electrical performance.

Q: Which substitute offers the best power efficiency?

A: MICRF219AAYQS draws the lowest receiving current at 4.3mA compared to 6mA for both MICRF219AYQS-TR and MICRF220AYQS-TR, making it the optimal choice for battery-powered or energy-constrained applications.

Q: Do all parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity level), ensuring equivalent regulatory and environmental compliance across applications.