RF Attenuator 84036313 Equivalent & Substitute Parts

Part Overview

The Huber+Suhner 84036313 (6603_SMA-50-1/199_NE) is a 3dB RF attenuator module designed for 50-ohm systems operating across 0 Hz to 18 GHz with 2W power handling capability. This component features SMA in-line connectors for direct integration into RF signal paths. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Key Parameters

Parameter	Value
Attenuation Value	3dB
Frequency Range	0 Hz ~ 18 GHz
Impedance	50 Ohms
Power Rating	2W
Package / Case	SMA In-Line Module
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for RF attenuators is determined by five critical parameters: attenuation value, frequency range, impedance, power rating, and package type. All substitute parts must match the attenuation value (3dB) and impedance (50 Ohms) of the original component. The package type must remain SMA in-line module to ensure mechanical and electrical compatibility with existing connectors and mounting configurations.

Frequency range and power rating define the operational envelope. Substitutes are grouped into three categories:

Full Equivalents maintain identical frequency range (0 Hz ~ 18 GHz) and power rating (2W), ensuring direct replacement without system redesign.

Parametric Equivalents with Extended Frequency Range operate beyond 18 GHz, providing broader bandwidth capability while maintaining all other specifications.

Parametric Equivalents with Reduced Frequency Range operate below 18 GHz, suitable for applications not requiring full bandwidth.

Parametric Equivalents with Unspecified Power Rating provide frequency and impedance compatibility but lack documented power specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Attenuation (dB)	Frequency Range (GHz)	Impedance (Ohms)	Power (W)	Package	Product Status	RoHS Status
84036313 (6603_SMA-50-1/199_NE)	Huber+Suhner, Inc.	3	0 ~ 18	50	2	SMA In-Line Module	Obsolete	REACH Unaffected
6603_SMA-50-1/199_NE	Huber+Suhner, Inc.	3	0 ~ 18	50	2	SMA In-Line Module	Active	ROHS3 Compliant
6603_SMA-50-2/199_NE	Huber+Suhner, Inc.	3	0 ~ 6	50	2	SMA In-Line Module	Active	ROHS3 Compliant
6603_SMA-50-3/199_NE	Huber+Suhner, Inc.	3	0 ~ 27	50	2	SMA In-Line Module	Active	ROHS3 Compliant
6803.19.A	Huber+Suhner, Inc.	3	0 ~ 18	50	2	SMA In-Line Module	Active	ROHS3 Compliant
ATS-1M1F-03DB2W	Amphenol RF	3	0 ~ 6	50	2	SMA In-Line Module	Active	ROHS3 Compliant
ATT-0238-03-SMA-02	Cinch Connectivity Solutions Midwest Microwave	3	0 ~ 4	50	2	SMA In-Line Module	Active	RoHS Compliant
CT4458-03	Cal Test Electronics	3	0 ~ 18	50	2	SMA In-Line Module	Active	ROHS3 Compliant
M3933/14-01N	Cinch Connectivity Solutions Midwest Microwave	3	0 ~ 12.4	50	—	SMA In-Line Module	Active	RoHS non-compliant
M3933/14-01S	Cinch Connectivity Solutions Midwest Microwave	3	0 ~ 12.4	50	—	SMA In-Line Module	Active	RoHS non-compliant
M3933/16-01N	Cinch Connectivity Solutions Midwest Microwave	3	0 ~ 18	50	—	SMA In-Line Module	Active	RoHS non-compliant

Engineering Selection Recommendations

Primary Recommendation: 6603_SMA-50-1/199_NE (Huber+Suhner, Inc.)

This active part is the direct manufacturer equivalent to the obsolete 84036313. It maintains identical electrical specifications (3dB attenuation, 0–18 GHz frequency range, 50-ohm impedance, 2W power rating) and mechanical form factor (SMA in-line module). The part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. This selection eliminates all compatibility concerns and provides the highest confidence for direct replacement.

Secondary Recommendation: 6803.19.A (Huber+Suhner, Inc.)

This Huber+Suhner part provides identical electrical and mechanical specifications to the original component. It is active, ROHS3 compliant, and carries REACH unaffected status. This option is suitable when the primary recommendation is unavailable.

Alternative Recommendation: CT4458-03 (Cal Test Electronics)

This part matches all critical parameters: 3dB attenuation, 0–18 GHz frequency range, 50-ohm impedance, 2W power rating, and SMA in-line module package. The part is active and ROHS3 compliant. This selection provides cross-manufacturer compatibility while maintaining full electrical and mechanical equivalence.

Conditional Recommendations for Frequency-Limited Applications:

For applications operating below 6 GHz, the 6603_SMA-50-2/199_NE (Huber+Suhner) or ATS-1M1F-03DB2W (Amphenol RF) are suitable. Both maintain 3dB attenuation, 50-ohm impedance, 2W power rating, and SMA in-line module configuration within their specified frequency ranges.

For applications operating below 4 GHz, the ATT-0238-03-SMA-02 (Cinch Connectivity Solutions Midwest Microwave) is suitable with identical electrical and mechanical specifications within its frequency range.

Not Recommended for Direct Replacement:

The M3933/14-01N, M3933/14-01S, and M3933/16-01N parts lack documented power ratings and carry RoHS non-compliant status. These parts are suitable only for legacy systems where power rating is not critical and RoHS compliance is not required.

Frequently Asked Questions (FAQ)

Q: Can the 6603_SMA-50-2/199_NE substitute for the 84036313 in all applications?

A: No. The 6603_SMA-50-2/199_NE operates only to 6 GHz, compared to the original part's 18 GHz upper frequency limit. This part is suitable only for applications with maximum operating frequencies at or below 6 GHz. All other electrical and mechanical parameters are identical.

Q: What is the difference between the 6603_SMA-50-1/199_NE and 6603_SMA-50-3/199_NE?

A: Both parts provide 3dB attenuation, 50-ohm impedance, and 2W power rating in SMA in-line module packages. The 6603_SMA-50-1/199_NE operates to 18 GHz, while the 6603_SMA-50-3/199_NE extends to 27 GHz. The 6603_SMA-50-3/199_NE provides broader bandwidth capability for higher-frequency applications.

Q: Are the M3933 series parts direct replacements?

A: The M3933/16-01N provides matching frequency range (0–18 GHz) and impedance (50 ohms) but lacks a documented power rating specification. The M3933/14-01N and M3933/14-01S operate only to 12.4 GHz. All M3933 parts carry RoHS non-compliant status. These parts are not recommended for new designs requiring current regulatory compliance.

Q: What does "REACH Unaffected" mean?

A: REACH Unaffected status indicates the component does not contain substances of very high concern (SVHC) listed under the EU REACH regulation. This status is equivalent to REACH compliance for component selection purposes.

Q: Can I use the ATS-1M1F-03DB2W in place of the 84036313?

A: The ATS-1M1F-03DB2W provides 3dB attenuation, 50-ohm impedance, 2W power rating, and SMA in-line module configuration. However, it operates only to 6 GHz, compared to the original part's 18 GHz upper frequency limit. This part is suitable only for applications with maximum operating frequencies at or below 6 GHz.

Q: What is the significance of RoHS compliance status?

A: RoHS3 compliance indicates the part meets current European Union Restriction of Hazardous Substances regulations. Parts marked as RoHS non-compliant may contain restricted substances and are not suitable for applications subject to RoHS requirements. For new designs, ROHS3 compliant parts are required.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts use SMA in-line module mechanical packaging, ensuring connector compatibility. However, secondary packaging (bulk, bag, tape) varies by manufacturer and part number. Verify secondary packaging requirements with your procurement specification.

Q: What is the difference between the 6603_SMA-50-1/199_NE and 6803.19.A?

A: Both parts provide identical electrical specifications (3dB attenuation, 0–18 GHz frequency range, 50-ohm impedance, 2W power rating) and mechanical form factor (SMA in-line module). Both are active and ROHS3 compliant. The primary difference is manufacturer part numbering and internal design. Either part is suitable for direct replacement.

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