RF Receiver FM 76MHz-108MHz Module 27984 Equivalent & Substitute Parts

Part Overview

The Parallax Inc. 27984 is an RF receiver module designed for FM band reception spanning 76MHz to 108MHz. This component integrates receiver circuitry on a single chip module with through-hole PCB mounting, operating across a wide supply voltage range of 2.7V to 5.5V. The product is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support, legacy equipment maintenance, and design continuity in applications requiring FM reception capability within the specified frequency band.

Substiute Parts

27984

Parallax Inc.In Stock: 114427984 Datasheet

Current PartRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution criteria for the Parallax Inc. 27984 RF receiver module are determined by the following critical parameters:

Frequency Compatibility: The substitute component must support FM reception within the 76MHz to 108MHz band. This is the primary functional requirement for direct substitution.

Modulation Standard: FM modulation capability is mandatory. Substitutes must decode frequency-modulated signals within the specified frequency range.

Supply Voltage Range: The substitute must operate within the 2.7V to 5.5V supply voltage window to ensure compatibility with existing power distribution architectures.

Current Consumption: Receiving current of 25mA establishes the power budget baseline. Substitutes with equivalent or lower current consumption maintain system power efficiency.

Mounting and Package: Through-hole mounting with module-level packaging is required for direct PCB integration without redesign of mounting infrastructure.

Operating Temperature: The 0°C to 50°C operating range defines the thermal envelope. Substitutes must maintain functional specifications across this temperature band.

Data Interface: PCB through-hole connectivity is mandatory for mechanical and electrical compatibility.

No substitute parts have been identified in the provided database that meet all specified parameters for direct substitution of the Parallax Inc. 27984 module.

Parameter Comparison

Engineering Selection Recommendations

The Parallax Inc. 27984 is classified as an obsolete product. For applications currently utilizing this component, the following engineering considerations apply:

Inventory Management: Existing stock of 1117 pieces provides a finite supply window for legacy system support and repair operations.

Compliance Status: The component carries ECCN classification EAR99 and HTSUS code 8473.30.1180, establishing regulatory compliance for the original specification.

Moisture Sensitivity: MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage, handling, or deployment.

Alternative Approaches: When direct substitutes are unavailable, system redesign incorporating modern FM receiver integrated circuits or modules may be necessary. Such redesign requires evaluation of form factor, interface protocols, and integration complexity against the cost of maintaining legacy component inventory.

Frequently Asked Questions (FAQ)

Q: Why are no substitute parts listed for the Parallax 27984?

A: The provided component database contains no parts meeting all critical substitution parameters: FM modulation, 76MHz-108MHz frequency range, 2.7V-5.5V supply voltage, 25mA receiving current, through-hole mounting, and module packaging simultaneously.

Q: Can I use a different RF receiver module with different frequency coverage?

A: No. Direct substitution requires frequency range compatibility within 76MHz to 108MHz. Components with different frequency bands will not receive the intended FM broadcast signals.

Q: What is the significance of the 2.7V to 5.5V supply voltage range?

A: This range defines the acceptable power supply inputs. Substitutes must operate across this entire voltage window to ensure compatibility with existing power distribution circuits without modification.

Q: Does the through-hole mounting requirement limit substitution options?

A: Yes. The through-hole package type is a mechanical constraint. Surface-mount alternatives require PCB redesign and assembly process changes.

Q: What does MSL 1 (Unlimited) mean for component handling?

A: Moisture Sensitivity Level 1 indicates the component has no moisture sensitivity restrictions. Standard storage and handling procedures are sufficient without specialized dry-pack requirements.

Q: Is the 25mA receiving current a maximum or typical specification?

A: Based on the parameter designation "Current - Receiving," this represents the operational current draw during FM reception. Substitutes with equal or lower current consumption are preferred for power budget compliance.

Q: Can I modify the circuit to use a different receiver module?

A: Circuit modification is outside the scope of direct substitution. Any component change requiring circuit redesign constitutes a design revision rather than a component substitution.