SF0929-6200-08 RF Attenuator - Equivalent & Substitute Parts

Part Overview

The SF0929-6200-08 is an RF attenuator manufactured by Amphenol SV Microwave, currently in active product status. This component is a fixed-value, in-line attenuator module providing 8dB attenuation across a 0 Hz to 18 GHz frequency range with 2W power handling and 50-ohm impedance. Alternative equivalent parts may be required due to supply chain considerations, regional availability, or inventory constraints.

Substiute Parts

SF0929-6200-08

Amphenol SV MicrowaveIn Stock: 766SF0929-6200-08 Datasheet

Current PartRFQ

M3933/25-74S

Cinch Connectivity Solutions Midwest MicrowaveIn Stock: 1119M3933/25-74S Datasheet

Parametric EquivalentRFQ

ATS-1M1F-08DB2W

Amphenol RFIn Stock: 961ATS-1M1F-08DB2W Datasheet

Parametric EquivalentRFQ

CGA-1040-08-SMA-02

Cinch Connectivity SolutionsIn Stock: 789CGA-1040-08-SMA-02 Datasheet

Parametric EquivalentRFQ

P1AT-SAMF-6G2W-8

P1dB IncIn Stock: 758P1AT-SAMF-6G2W-8 Datasheet

Parametric EquivalentRFQ

R413808115

Radiall USA, Inc.In Stock: 979R413808115 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by four primary parameters: attenuation value (8dB), impedance (50 ohms), power rating (2W), and package configuration (SMA in-line module). All identified substitute parts match these core electrical specifications.

Frequency range variations exist among substitutes and must be evaluated against application requirements. The main part (SF0929-6200-08) operates across the full 0 Hz to 18 GHz spectrum. Substitute parts are grouped into three frequency categories: full-range (0–18 GHz), extended-range (0–6 GHz), and limited-range (0–4 GHz) variants. Selection depends on the upper frequency limit required by the end application.

Secondary considerations include RoHS compliance status and moisture sensitivity level, which determine suitability for specific manufacturing environments and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

Full-Frequency Range (0–18 GHz): The SF0929-6200-08 (primary) and M3933/25-74S (substitute) are the only components supporting the full 18 GHz upper frequency limit. The main part is ROHS3 compliant, whereas M3933/25-74S is non-compliant. Selection between these two depends on RoHS requirement compliance for the target application.

Extended-Range (0–6 GHz): The ATS-1M1F-08DB2W (Amphenol RF) and P1AT-SAMF-6G2W-8 (P1dB Inc) operate to 6 GHz. Both are ROHS3 compliant and suitable for applications with frequency requirements up to 6 GHz. The ATS-1M1F-08DB2W is sourced from Amphenol RF, a subsidiary group manufacturer.

Limited-Range (0–4 GHz): The CGA-1040-08-SMA-02 (Cinch Connectivity Solutions) and R413808115 (Radiall USA, Inc.) are restricted to 4 GHz maximum frequency. Both are RoHS compliant. These are suitable only for applications with upper frequency limits at or below 4 GHz.

All substitute components are active products with confirmed inventory availability. Selection must first be based on frequency range requirement, then on compliance and packaging preferences.

Frequently Asked Questions (FAQ)

Q: Can any 8dB SMA attenuator be used as a substitute? No. While attenuation value, impedance, power rating, and connector type must match exactly, frequency range must be confirmed. A substitute with a lower maximum frequency than the application requires will not function across the intended operating range.

Q: What is the difference between the main part and M3933/25-74S? Both provide 8dB attenuation across 0–18 GHz at 2W and 50 ohms. The primary difference is RoHS compliance: SF0929-6200-08 is ROHS3 compliant, while M3933/25-74S is non-compliant. Selection depends on regulatory requirements for the end application.

Q: Why do some substitutes have lower frequency ratings? The ATS-1M1F-08DB2W, CGA-1040-08-SMA-02, P1AT-SAMF-6G2W-8, and R413808115 are each rated to specific maximum frequencies (6 GHz or 4 GHz) due to their individual design specifications. These are valid substitutes only when the application's upper frequency requirement does not exceed their rated limits.

Q: What does MSL (Moisture Sensitivity Level) indicate? MSL defines the maximum time a component can be exposed to ambient conditions before soldering. The SF0929-6200-08 lists "Not Applicable," indicating no moisture sensitivity restriction. All five substitutes are rated MSL 1 (Unlimited), meaning they have no time limit for storage in standard conditions.

Q: Are all parts available in the same packaging? The SF0929-6200-08 is packaged in bulk. The M3933/25-74S is packaged in bags. All other substitutes are in bulk packaging. Verify packaging preference with procurement or assembly requirements.