SF0929-6200-03 RF Attenuator 3dB 50 Ohm SMA In-Line Module

Part Overview

The SF0929-6200-03 is a 3dB RF attenuator module manufactured by Amphenol SV Microwave, designed for use in 50-ohm microwave systems requiring controlled signal attenuation across the 0 Hz to 18 GHz frequency range. The module operates at 2W power capacity and employs SMA connectors for in-line applications. This product maintains Active status and ROHS3 compliance, supporting system integration in modern RF/microwave designs. Alternative models become necessary when system constraints require different connector types, expanded frequency ranges, military-grade qualifications, or specific supplier availability.

Substiute Parts

SF0929-6200-03

Amphenol SV MicrowaveIn Stock: 860SF0929-6200-03 Datasheet

Current PartRFQ

M3933/16-01N

Cinch Connectivity Solutions Midwest MicrowaveIn Stock: 891M3933/16-01N Datasheet

Parametric EquivalentRFQ

M3933/16-01S

Cinch Connectivity Solutions Midwest MicrowaveIn Stock: 1074M3933/16-01S Datasheet

Parametric EquivalentRFQ

M3933/25-29N

Cinch Connectivity Solutions Midwest MicrowaveIn Stock: 1070M3933/25-29N Datasheet

Parametric EquivalentRFQ

M3933/25-64N

Cinch Connectivity Solutions Midwest MicrowaveIn Stock: 70172M3933/25-64N Datasheet

Parametric EquivalentRFQ

M3933/25-64S

Cinch Connectivity Solutions Midwest MicrowaveIn Stock: 689M3933/25-64S Datasheet

Parametric EquivalentRFQ

ATS-1M1F-03DB2W

Amphenol RFIn Stock: 1480ATS-1M1F-03DB2W Datasheet

Parametric EquivalentRFQ

P1AT-29MF-40G2W-3

P1dB IncIn Stock: 981P1AT-29MF-40G2W-3 Datasheet

Parametric EquivalentRFQ

P1AT-SAMF-18G2W-3

P1dB IncIn Stock: 824P1AT-SAMF-18G2W-3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SF0929-6200-03 is determined by the following parameters: attenuation value (3dB), impedance (50 Ohms), connector interface, frequency range capability, and power handling capacity. Substitute parts must maintain the 3dB attenuation value and 50-ohm impedance. Connector type compatibility (SMA versus alternative connectors) affects mechanical compatibility. Frequency range and power rating constraints define operational boundaries—parts with equal or greater frequency range and power rating provide full functional equivalence, while parts with reduced frequency ranges or power ratings require application-specific validation. Military qualification and RoHS compliance represent secondary compatibility criteria used for design specification alignment rather than functional substitution.

Parameter Comparison

Engineering Selection Recommendations

Full Parameter Equivalence (Direct Substitutes): M3933/16-01S and P1AT-SAMF-18G2W-3 provide complete electrical and mechanical equivalence to the SF0929-6200-03, with matching attenuation, frequency range (0–18 GHz), impedance, and power rating. M3933/16-01S is available in higher inventory (990 units) and qualified to MIL-DTL-M3933. P1AT-SAMF-18G2W-3 maintains RoHS compliance matching the primary part.

Limited Frequency Range Substitutes: M3933/25-29N and M3933/25-64N operate within 0–12.4 GHz, restricting operation above 12.4 GHz compared to the SF0929-6200-03. These parts are suitable only for applications not exceeding 12.4 GHz. M3933/25-64N provides exceptional inventory availability (70,100 units) and military qualification.

Reduced Frequency Range Substitute: ATS-1M1F-03DB2W operates within 0–6 GHz, limiting coverage to one-third of the primary part's frequency range. This substitute applies only to systems constrained below 6 GHz.

Connector Type Incompatibility: P1AT-29MF-40G2W-3 features 2.92mm connectors instead of SMA, requiring interface adapters or connector conversion for installation compatibility. This part extends frequency range to 40 GHz but is mechanically incompatible with existing SMA systems.

Incomplete Parameter Definition: M3933/16-01N and M3933/25-64N lack specified power and impedance values in available documentation. Verification with manufacturer technical data sheets is required before design implementation.

Frequently Asked Questions (FAQ)

Q: Which substitute parts maintain full compatibility with the SF0929-6200-03? A: M3933/16-01S and P1AT-SAMF-18G2W-3 meet all electrical specifications (3dB, 50 Ohms, 2W, 0–18 GHz) and mechanical requirements (SMA connectors). Both enable direct replacement in existing designs.

Q: Can I use M3933/25-29N or M3933/25-64N in place of SF0929-6200-03? A: These parts support only 0–12.4 GHz operation, reducing the upper frequency limit by 5.6 GHz. Use these alternatives only when your application operates entirely below 12.4 GHz.

Q: What is the difference between M3933/16-01S and M3933/16-01N? A: M3933/16-01S specifies 2W power and 50-ohm impedance with full electrical documentation. M3933/16-01N lacks documented power and impedance specifications, requiring manufacturer confirmation before use in power-critical applications.

Q: Is ATS-1M1F-03DB2W a suitable alternative? A: ATS-1M1F-03DB2W operates at 0–6 GHz, covering only the lowest third of the SF0929-6200-03 frequency range. This part substitutes only in designs limited to 6 GHz or below.

Q: Why does P1AT-29MF-40G2W-3 require special consideration? A: This part uses 2.92mm connectors instead of SMA, requiring mechanical adapter interfaces for installation. While it extends frequency coverage to 40 GHz, mechanical incompatibility necessitates interface planning.

Q: What RoHS compliance level applies to these substitutes? A: SF0929-6200-03 and ATS-1M1F-03DB2W meet ROHS3 standards. P1AT-SAMF-18G2W-3 and P1AT-29MF-40G2W-3 meet RoHS Compliant standards. Cinch Connectivity M3933 series parts are RoHS non-compliant and require compliance evaluation for regulated applications.

Q: Which substitute offers the highest inventory availability? A: M3933/25-64N maintains 70,100 units in stock, providing the largest available inventory. However, verify frequency range (0–12.4 GHz) and parameter documentation compatibility with your system requirements before selection.