RF Attenuator 5dB 50 Ohm SMA M3933/16-08N Equivalent & Substitute Parts

Part Overview

The M3933/16-08N is an RF attenuator manufactured by Amphenol SV Microwave, designed for inline attenuation applications across microwave frequencies. This component provides 5dB attenuation across a 0 Hz to 18 GHz frequency range with 50 Ohm impedance and 2W power handling capability in an SMA connector configuration. The part is currently in Active product status. Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design flexibility permits equivalent component selection from alternative manufacturers while maintaining electrical and mechanical specifications.

Substiute Parts

M3933/16-08N

Amphenol SV MicrowaveIn Stock: 968M3933/16-08N Datasheet

Current PartRFQ

AT-105V

Hirose Electric Co LtdIn Stock: 805AT-105V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M3933/16-08N is determined by strict equivalence across the following critical parameters: attenuation value (5dB), frequency range (0 Hz ~ 18 GHz), impedance (50 Ohms), power rating (2W), and package configuration (SMA In-Line Module). Only components meeting all five of these specifications are classified as parametric equivalents. The AT-105V from Hirose Electric Co Ltd satisfies all substitution criteria and is therefore listed as a direct equivalent. Packaging format differences (Bag versus Bulk) do not affect electrical or mechanical compatibility and do not preclude substitution at the component level.

Parameter Comparison

Engineering Selection Recommendations

The M3933/16-08N remains the primary selection for new designs and applications requiring long-term component availability, as it maintains Active product status. The AT-105V serves as a parametric equivalent for applications where component substitution is permissible and where inventory availability of the primary part is constrained. Both components carry equivalent regulatory compliance (RoHS and EAR99 classification) and identical HTSUS coding, confirming their functional equivalence. The AT-105V carries Last Time Buy status, indicating limited future availability; therefore, this substitute is suitable for near-term replacement scenarios only. Selection between these components should be based on current inventory availability, supply chain requirements, and design flexibility constraints rather than electrical performance differences, as all critical parameters are identical.

Frequently Asked Questions (FAQ)

Q: Can the AT-105V be used as a direct replacement for the M3933/16-08N in existing designs?

A: Yes. The AT-105V meets all electrical and mechanical specifications required for direct substitution. Both components provide identical attenuation (5dB), frequency response (0 Hz ~ 18 GHz), impedance (50 Ohms), power handling (2W), and SMA In-Line Module packaging. No circuit modifications or performance adjustments are required.

Q: What is the significance of the different product statuses (Active versus Last Time Buy)?

A: Active status indicates the M3933/16-08N is in standard production with ongoing availability. Last Time Buy status for the AT-105V indicates limited future manufacturing; this part should be selected only when the primary part is unavailable and near-term component replacement is acceptable.

Q: Does the packaging difference (Bag versus Bulk) affect component compatibility?

A: No. Packaging format is a logistics and inventory consideration only and does not affect electrical performance, mechanical fit, or functional compatibility. Both packaging types contain identical components.

Q: Are both components suitable for new product designs?

A: The M3933/16-08N is recommended for new designs due to Active product status and assured long-term availability. The AT-105V may be used in new designs only when supply constraints on the primary part are documented and when design flexibility permits component substitution.

Q: What compliance certifications apply to both parts?

A: Both components are RoHS compliant and classified under ECCN EAR99 with identical HTSUS code 8533.21.0090, confirming regulatory equivalence for export and environmental compliance purposes.