M3933/14-07N RF Attenuator 2dB 50Ohm SMA

Part Overview

The M3933/14-07N is an RF attenuator manufactured by Amphenol SV Microwave designed for applications requiring 2dB attenuation across the DC to 12.4 GHz frequency range. This active product operates at 50 Ohms impedance with 2W power handling capability in an SMA in-line module configuration. Alternative equivalent parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable.

Key Parameters

Parameter	Specification
Manufacturer Part Number	M3933/14-07N
Manufacturer	Amphenol SV Microwave
Attenuation Value	2dB
Frequency Range	0 Hz ~ 12.4 GHz
Power Rating	2W
Impedance	50 Ohms
Package / Case	SMA In-Line Module
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for RF attenuators is determined by the following critical parameters:

Primary Substitution Criteria:

Attenuation Value: Must match 2dB
Impedance: Must match 50 Ohms
Power Rating: Must match or exceed 2W
Package / Case: Must be SMA In-Line Module

Secondary Considerations:

Frequency Range: Determines operational bandwidth compatibility
RoHS / Compliance Status: Affects regulatory acceptance in target applications

The identified substitute parts maintain all primary criteria. Frequency range variations (6 GHz, 12.4 GHz, and 18 GHz maximum) represent the only electrical parameter difference and establish distinct substitution categories based on application bandwidth requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Attenuation	Frequency Range	Power	Impedance	Package	RoHS Status	Status
M3933/14-07N	Amphenol SV Microwave	2dB	0 Hz ~ 12.4 GHz	2W	50 Ohms	SMA In-Line	ROHS3 Compliant	Active
M3933/25-28N	Cinch Connectivity Solutions Midwest Microwave	2dB	0 Hz ~ 12.4 GHz	2W	50 Ohms	SMA In-Line	RoHS Non-Compliant	Active
M3933/25-62S	Cinch Connectivity Solutions Midwest Microwave	2dB	0 Hz ~ 18 GHz	2W	50 Ohms	SMA In-Line	RoHS Non-Compliant	Active
SF0929-6200-02	Amphenol SV Microwave	2dB	0 Hz ~ 18 GHz	2W	50 Ohms	SMA In-Line	ROHS3 Compliant	Active
ATS-1M1F-02DB2W	Amphenol RF	2dB	0 Hz ~ 6 GHz	2W	50 Ohms	SMA In-Line	ROHS3 Compliant	Active
P1AT-SAMF-18G2W-2	P1dB Inc	2dB	0 Hz ~ 18 GHz	2W	50 Ohms	SMA In-Line	ROHS3 Compliant	Active

Engineering Selection Recommendations

Direct Electrical Equivalent (Matched Frequency Range): M3933/25-28N provides identical electrical performance for 0 Hz to 12.4 GHz applications. This part meets all primary substitution criteria with matching frequency response to the M3933/14-07N. RoHS non-compliance status should be evaluated against application regulatory requirements.

Extended Bandwidth Equivalents (Higher Frequency Range): M3933/25-62S and P1AT-SAMF-18G2W-2 extend operational frequency to 18 GHz while maintaining 2dB attenuation, 2W power handling, and 50 Ohm impedance. Both achieve ROHS3 compliance. These parts support applications requiring broader frequency coverage beyond 12.4 GHz.

SF0929-6200-02 from Amphenol SV Microwave (original manufacturer) offers identical frequency extension to 18 GHz with ROHS3 compliance, providing manufacturer consistency with the primary part.

Limited Bandwidth Option (Lower Frequency Range): ATS-1M1F-02DB2W from Amphenol RF operates to 6 GHz maximum frequency. This part is suitable only for applications with frequency requirements not exceeding 6 GHz and should not be selected for systems requiring the full 12.4 GHz bandwidth.

Compliance Consideration: All substitute parts maintain active product status. ROHS3 compliant parts (SF0929-6200-02, ATS-1M1F-02DB2W, P1AT-SAMF-18G2W-2) are recommended for applications with RoHS regulatory requirements. M3933/25-28N and M3933/25-62S require compliance verification for regulated end-use applications.

Frequently Asked Questions (FAQ)

Q: Can M3933/25-28N be used as a direct replacement for M3933/14-07N? A: Yes. Both parts specify 2dB attenuation, 0 Hz to 12.4 GHz frequency range, 2W power rating, 50 Ohm impedance, and SMA in-line module packaging. Selection depends on RoHS compliance requirements for your application.

Q: What is the difference between substitute parts with 6 GHz, 12.4 GHz, and 18 GHz frequency specifications? A: The frequency specification defines the maximum operational bandwidth. The 6 GHz part (ATS-1M1F-02DB2W) functions only to 6 GHz. The 12.4 GHz part (M3933/14-07N and M3933/25-28N) operates to 12.4 GHz. The 18 GHz parts (M3933/25-62S, SF0929-6200-02, P1AT-SAMF-18G2W-2) extend to 18 GHz. Select based on your application's maximum frequency requirement.

Q: Are all substitute parts mechanically compatible in the same circuit? A: Yes. All identified substitutes use SMA in-line module packaging with identical 50 Ohm impedance. Mechanical compatibility is established across all parts in this list.

Q: Why would I choose SF0929-6200-02 over M3933/25-62S when both extend to 18 GHz? A: Both parts provide 18 GHz bandwidth with identical electrical parameters. SF0929-6200-02 is manufactured by Amphenol SV Microwave (the original part manufacturer) and carries ROHS3 compliance. M3933/25-62S is RoHS non-compliant. Selection depends on supply availability, manufacturer preference, and regulatory requirements.

Q: Can I use an 18 GHz attenuator in a system designed for 12.4 GHz operation? A: Yes. Higher frequency rated components operate across their full bandwidth range. An 18 GHz rated attenuator functions properly at 12.4 GHz and lower frequencies. No electrical degradation occurs from using extended bandwidth components.

Q: What does the 2dB attenuation specification mean? A: The 2dB value is the fixed insertion loss across the specified frequency range. This represents the signal level reduction introduced by the attenuator throughout its operational bandwidth.

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