PE43702MLI-Z RF Attenuator Equivalent & Substitute Parts

Part Overview

The PE43702MLI-Z is a fixed RF attenuator manufactured by pSemi, designed for applications requiring 31.75dB attenuation across the 9 kHz to 4 GHz frequency range with 50 Ohm impedance. The device is packaged in a 24-VFQFN Exposed Pad configuration and operates at MSL 1 (Unlimited moisture sensitivity level).

The PE43702MLI-Z carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this attenuator.

Substiute Parts

PE43702MLI-Z

pSemiIn Stock: 9993PE43702MLI-Z Datasheet

Current PartRFQ

PE43711B-Z

pSemiIn Stock: 17595PE43711B-Z Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PE43702MLI-Z is determined by the following critical parameters:

• Attenuation Value: The substitute must provide 31.75dB attenuation or support a range encompassing 31.75dB
• Frequency Range: The substitute must cover or exceed the 9 kHz to 4 GHz operating band
• Impedance: The substitute must maintain 50 Ohm characteristic impedance
• Package / Case: The substitute must use the 24-VFQFN Exposed Pad package for mechanical and electrical compatibility
• Moisture Sensitivity Level: The substitute must meet or exceed MSL 1 classification

The PE43711B-Z qualifies as a direct substitute based on these parameters. It provides variable attenuation from 0dB to 31.75dB (encompassing the fixed 31.75dB requirement), operates across 9 kHz to 6 GHz (exceeding the original 4 GHz upper limit), maintains 50 Ohm impedance, uses the identical 24-VFQFN Exposed Pad package, and meets MSL 1 specifications.

Parameter Comparison

Engineering Selection Recommendations

The PE43711B-Z is the qualified substitute for the obsolete PE43702MLI-Z. Selection of this substitute is supported by the following factors:

• Product Status: The PE43711B-Z maintains Active status, ensuring continued availability and manufacturer support
• Compliance Alignment: Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, maintaining regulatory consistency
• RoHS Compliance: The PE43711B-Z is ROHS3 Compliant, meeting current environmental standards
• Electrical Compatibility: The substitute provides equivalent or superior electrical performance across all critical parameters (impedance, frequency range, and attenuation capability)
• Package Compatibility: Identical 24-VFQFN Exposed Pad packaging ensures direct PCB layout compatibility without redesign

Frequently Asked Questions (FAQ)

Q: Can the PE43711B-Z directly replace the PE43702MLI-Z in existing designs?

A: Yes. Both parts use the 24-VFQFN Exposed Pad package with identical pinout and footprint. Electrical parameters (50 Ohm impedance, frequency range, and attenuation capability) are compatible. No PCB redesign is required.

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

A: The PE43702MLI-Z provides fixed 31.75dB attenuation, while the PE43711B-Z provides variable attenuation from 0dB to 31.75dB. The PE43711B-Z also extends the frequency range to 6 GHz compared to the original 4 GHz specification.

Q: Are there any compliance or certification differences?

A: Both parts share identical ECCN and HTSUS classifications. The PE43711B-Z carries ROHS3 Compliance and REACH Unaffected status, meeting current environmental regulations.

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. Verify packaging requirements for your procurement process.

Q: What is the inventory status of the substitute part?

A: The PE43711B-Z has 17,500 pieces in stock as new original inventory, providing adequate supply for production requirements.