RF Attenuator M3933/16-07N – Equivalent & Substitute Parts

Part Overview

The M3933/16-07N is an RF attenuator manufactured by Amphenol SV Microwave, designed for RF signal attenuation in microwave applications. This SMA in-line module provides 4dB attenuation across a broad frequency range with 2W power handling capability and 50-ohm impedance matching. The product is currently in active status. Identifying equivalent and substitute parts is essential when the primary component becomes unavailable or when supply chain optimization requires component standardization across production batches or inventory management.

Substiute Parts

M3933/16-07N

Amphenol SV MicrowaveIn Stock: 1219M3933/16-07N Datasheet

Current PartRFQ

AT-104V

Hirose Electric Co LtdIn Stock: 759AT-104V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the M3933/16-07N must satisfy the following critical electrical and mechanical parameters:

• Attenuation Value: 4dB (exact match required)
• Frequency Range: 0 Hz ~ 18 GHz (minimum required range)
• Power Rating: 2W (minimum required dissipation capability)
• Impedance: 50 Ohms (system impedance standard)
• Package / Case: SMA In-Line Module (mechanical and connector compatibility)

The AT-104V from Hirose Electric Co Ltd meets all of these parametric requirements and functions as a direct electrical and mechanical equivalent to the M3933/16-07N.

Parameter Comparison

Engineering Selection Recommendations

Both the M3933/16-07N and AT-104V meet the electrical and mechanical specifications required for 4dB RF attenuation in 50-ohm systems operating from DC to 18 GHz.

The M3933/16-07N is the recommended primary selection due to its Active product status, which ensures continued availability and long-term manufacturing support.

The AT-104V functions as a parametric equivalent but carries a Last Time Buy designation, indicating that this component will no longer be manufactured after current stock depletion. This status should influence component selection only when supply chain constraints make the primary part unavailable or when existing inventory of the AT-104V must be consumed within a defined timeframe. Both components maintain the same RoHS compliance certifications required for modern manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can the AT-104V be used as a direct replacement for the M3933/16-07N in existing designs?

A: Yes. Both components share identical electrical performance (4dB attenuation, 0–18 GHz frequency range, 2W power rating, 50-ohm impedance) and mechanical form factor (SMA in-line module), making the AT-104V a direct parametric equivalent.

Q: What is the significance of the "Last Time Buy" status on the AT-104V?

A: Last Time Buy indicates that the AT-104V will not be manufactured beyond current stock availability. Component selection should prioritize the Active M3933/16-07N for new designs and ongoing production requirements.

Q: Are there packaging considerations that affect substitution?

A: Both components are supplied in compatible mechanical packages (SMA in-line modules). The M3933/16-07N is supplied in bag packaging, while the AT-104V is supplied in bulk packaging. This difference affects inventory management and handling but does not alter electrical performance or circuit compatibility.

Q: Do both parts meet current compliance requirements?

A: Yes. Both the M3933/16-07N and AT-104V carry RoHS compliance certifications. The M3933/16-07N is ROHS3 Compliant, while the AT-104V is RoHS Compliant. Both parts carry the same ECCN (EAR99) and HTSUS code (8533.21.0090) classifications.

Q: What parameters must remain constant for a valid substitution?

A: Attenuation value (4dB), frequency range (0 Hz – 18 GHz), power rating (2W), impedance (50 Ohms), and package type (SMA in-line module) must all match. Any deviation from these parameters disqualifies a component as a direct substitute.

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