PE43502MLI Equivalent & Substitute Parts

Part Overview

The PE43502MLI is an RF attenuator manufactured by pSemi, designed for applications requiring fixed 15.5dB attenuation across the 9 kHz to 6 GHz frequency range. This component operates at 50 Ohm impedance and is packaged in a 24-VFQFN Exposed Pad configuration. The product is currently classified as Obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

PE43502MLI

pSemiIn Stock: 5107PE43502MLI Datasheet

Current PartRFQ

PE43711B-Z

pSemiIn Stock: 17595PE43711B-Z Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PE43502MLI is determined by the following critical parameters:

• Frequency Range: Must support 9 kHz ~ 6 GHz operation
• Impedance: Must maintain 50 Ohm characteristic impedance
• Package / Case: Must be compatible with 24-VFQFN Exposed Pad footprint
• Series Compatibility: UltraCMOS® series components maintain design consistency
• Attenuation Capability: Substitute must provide the required 15.5dB attenuation value

The PE43711B-Z qualifies as a substitute because it operates within the same frequency range, maintains 50 Ohm impedance, uses the identical 24-VFQFN Exposed Pad package, and belongs to the same UltraCMOS® series. The PE43711B-Z provides variable attenuation from 0dB to 31.75dB, which encompasses the fixed 15.5dB requirement of the PE43502MLI.

Parameter Comparison

Engineering Selection Recommendations

The PE43711B-Z is the qualified substitute for the obsolete PE43502MLI. Selection of this substitute is supported by the following factors:

• Active Product Status: The PE43711B-Z maintains Active product status, ensuring continued manufacturer support and availability
• Identical Electrical Specifications: Both components operate at 50 Ohm impedance across the 9 kHz to 6 GHz frequency range
• Package Compatibility: The 24-VFQFN Exposed Pad package is identical, enabling direct PCB footprint compatibility
• RoHS3 Compliance: The PE43711B-Z is RoHS3 Compliant, meeting current environmental and regulatory requirements
• REACH Unaffected Status: The substitute maintains REACH Unaffected designation
• Series Continuity: Both components belong to the UltraCMOS® series, maintaining design consistency

Frequently Asked Questions (FAQ)

Q: Can the PE43711B-Z directly replace the PE43502MLI in existing designs?

A: Yes. Both components share identical package geometry (24-VFQFN Exposed Pad), frequency range (9 kHz ~ 6 GHz), and impedance (50 Ohms). PCB footprints are compatible without modification.

Q: What is the primary difference between these two components?

A: The PE43502MLI provides fixed 15.5dB attenuation, while the PE43711B-Z provides variable attenuation from 0dB to 31.75dB. The PE43711B-Z can be configured to deliver 15.5dB attenuation through appropriate control settings.

Q: Are there any compliance differences between the main part and substitute?

A: The PE43711B-Z provides enhanced compliance status. It is RoHS3 Compliant and REACH Unaffected, whereas the PE43502MLI compliance information is not specified. Both maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: Is the PE43711B-Z available in the same packaging options?

A: The PE43711B-Z is available in Cut Tape (CT) and Digi-Reel® packaging. Packaging selection should be confirmed based on procurement requirements.

Q: Why is the PE43502MLI classified as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The PE43711B-Z, as an Active product from the same manufacturer and series, provides continued access to equivalent RF attenuation functionality.