QAM-RX5-433 RF Receiver Module: Equivalent & Substitute Parts

Part Overview

The QAM-RX5-433 is an RF receiver module manufactured by RF Solutions operating at 433MHz with AM modulation. This through-hole PCB module is designed for remote control, RKE (Remote Keyless Entry), and security system applications. The module features -106dBm sensitivity and supports data rates up to 3KHz.

The QAM-RX5-433 is classified as obsolete. 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 component.

Substiute Parts

QAM-RX5-433

RF SolutionsIn Stock: 821QAM-RX5-433 Datasheet

Current PartRFQ

AM-RX9-433P

RF SolutionsIn Stock: 867AM-RX9-433P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the QAM-RX5-433 is evaluated based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Compatibility Criteria:

• Frequency: 433MHz (mandatory match)
• Modulation: AM (mandatory match)
• Voltage Supply Range: Must encompass or overlap with 2.5V ~ 5.5V
• Sensitivity: -106dBm or better (lower absolute value acceptable)
• Data Rate: Must support minimum 3KHz operation

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole (required for PCB integration)
• Package Type: Module format
• Data Interface: PCB-compatible connection method

Availability & Compliance Criteria:

• Product Status: Active or current production preferred for obsolete parts
• Moisture Sensitivity: MSL 1 acceptable
• Regulatory Compliance: REACH and RoHS status documented

The AM-RX9-433P qualifies as a substitute based on matching frequency (433MHz), modulation (AM), mounting type (Through Hole), and package format (Module). The substitute demonstrates improved electrical performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration: Data Interface Difference

The most significant difference between QAM-RX5-433 and AM-RX9-433P is the data interface specification. The main part uses PCB through-hole connection, while the substitute specifies SPI (Serial Peripheral Interface). This difference requires circuit board redesign evaluation to determine compatibility with existing host controller interfaces.

Electrical Performance Advantages of AM-RX9-433P:

The substitute part demonstrates superior electrical characteristics: improved sensitivity (-109dBm versus -106dBm), higher maximum data rate (10kbps versus 3KHz), and reduced receiving current (2.6mA versus 4.7mA). These improvements are beneficial for power-constrained applications and higher-speed data transmission requirements.

Supply Voltage Compatibility:

Both parts operate within overlapping supply voltage ranges (2.4V ~ 5.5V for substitute; 2.5V ~ 5.5V for main part). The substitute's lower minimum voltage (2.4V) provides additional flexibility for battery-powered applications.

Regulatory and Compliance Status:

The AM-RX9-433P is classified as active product status with ROHS3 compliance certification, providing assurance of ongoing manufacturer support and adherence to current environmental regulations. The main part's obsolete status necessitates transition planning.

Substitution Feasibility:

Direct substitution is feasible for applications where SPI interface integration is compatible with existing system architecture. Applications requiring the original PCB through-hole interface specification may require alternative solutions or custom interface adaptation.

Frequently Asked Questions (FAQ)

Q1: Can AM-RX9-433P directly replace QAM-RX5-433 without circuit modifications?

A: Direct replacement depends on data interface compatibility. The main part uses PCB through-hole connection while the substitute uses SPI interface. If your system controller supports SPI communication, substitution is feasible. If your design requires PCB through-hole connection, circuit board redesign is necessary.

Q2: What are the key electrical differences between these two modules?

A: The AM-RX9-433P offers improved sensitivity (-109dBm versus -106dBm), supports higher data rates (10kbps versus 3KHz), and consumes less current during reception (2.6mA versus 4.7mA). Both operate at 433MHz with AM modulation and compatible supply voltage ranges.

Q3: Is the AM-RX9-433P suitable for remote control and security system applications?

A: The AM-RX9-433P is specified for AM radio receiver applications. While it operates at the same frequency and modulation as the original part, application suitability depends on specific system requirements including data rate, interface protocol, and performance specifications. Engineering evaluation is required for application-specific confirmation.

Q4: What is the significance of the different data interface specifications?

A: The main part (QAM-RX5-433) uses PCB through-hole connection for direct board integration, while the substitute (AM-RX9-433P) uses SPI (Serial Peripheral Interface), a standard digital communication protocol. SPI requires a compatible host controller with SPI capability. This difference affects circuit board design and firmware implementation.

Q5: Are both parts environmentally compliant?

A: Both parts have MSL 1 (Unlimited) moisture sensitivity rating. The AM-RX9-433P is certified ROHS3 compliant. The main part's compliance status is not specified in available documentation. For new designs, the substitute's active status and RoHS3 certification provide regulatory assurance.

Q6: What is the inventory status for these parts?

A: QAM-RX5-433 has 750 pieces in stock (obsolete status). AM-RX9-433P has 775 pieces in stock (active product status). For long-term supply planning, the active product status of the substitute provides greater availability assurance.

Q7: How do the supply voltage ranges compare?

A: QAM-RX5-433 operates at 2.5V ~ 5.5V. AM-RX9-433P operates at 2.4V ~ 5.5V. The substitute's lower minimum voltage (2.4V) provides additional flexibility for battery-powered applications operating at lower voltage levels.