AT-102V RF Attenuator 2dB 50 Ohm SMA In-Line Module

Part Overview

The AT-102V is a 2dB RF attenuator manufactured by Hirose Electric Co Ltd, designed for applications requiring signal attenuation across the 0 Hz to 18 GHz frequency range. This component operates at 50 Ohms impedance with 2W power handling capability in an SMA in-line module package format. The part is currently in Last Time Buy status, indicating production discontinuation. Equivalent substitute parts from Cinch Connectivity Solutions Midwest Microwave are available to support ongoing system requirements and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	AT-102V
Manufacturer	Hirose Electric Co Ltd
Attenuation Value	2dB
Frequency Range	0 Hz ~ 18 GHz
Impedance	50 Ohms
Power Rating	2W
Package / Case	SMA In-Line Module
RoHS Status	RoHS Compliant
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitute parts for the AT-102V are selected based on strict parametric equivalence across the following critical parameters:

Attenuation Value: All substitutes must provide 2dB attenuation
Impedance: All substitutes must operate at 50 Ohms
Package Type: All substitutes must use SMA in-line module configuration
Frequency Range Compatibility: Substitutes are grouped by maximum frequency capability; parts with frequency ranges equal to or exceeding the AT-102V's 0 Hz ~ 18 GHz specification provide full compatibility

Substitute parts are organized into two functional groups:

Full-Range Equivalents (0 Hz ~ 18 GHz): M3933/16-06N and M3933/16-06S provide identical frequency coverage to the AT-102V.

Limited-Range Equivalents: M3933/14-07S (0 Hz ~ 12.4 GHz), M3933/25-02N and M3933/25-02S (0 Hz ~ 2 GHz), and M3933/25-28N and M3933/25-28S (0 Hz ~ 12.4 GHz) are suitable only for applications operating within their specified frequency ranges.

Parameter Comparison

Part Number	Manufacturer	Attenuation	Frequency Range	Impedance	Power (W)	Package	RoHS Status	Product Status
AT-102V	Hirose Electric Co Ltd	2dB	0 Hz ~ 18 GHz	50 Ohms	2W	SMA In-Line Module	RoHS Compliant	Last Time Buy
M3933/16-06N	Cinch Connectivity Solutions Midwest Microwave	2dB	0 Hz ~ 18 GHz	50 Ohms	—	SMA In-Line Module	RoHS Non-Compliant	Active
M3933/16-06S	Cinch Connectivity Solutions Midwest Microwave	2dB	0 Hz ~ 18 GHz	50 Ohms	2W	SMA In-Line Module	RoHS Non-Compliant	Active
M3933/14-07S	Cinch Connectivity Solutions Midwest Microwave	2dB	0 Hz ~ 12.4 GHz	50 Ohms	—	SMA In-Line Module	RoHS Non-Compliant	Active
M3933/25-02N	Cinch Connectivity Solutions Midwest Microwave	2dB	0 Hz ~ 2 GHz	50 Ohms	2W	SMA In-Line Module	RoHS Non-Compliant	Active
M3933/25-02S	Cinch Connectivity Solutions Midwest Microwave	2dB	0 Hz ~ 2 GHz	50 Ohms	2W	SMA In-Line Module	RoHS Non-Compliant	Active
M3933/25-28N	Cinch Connectivity Solutions Midwest Microwave	2dB	0 Hz ~ 12.4 GHz	50 Ohms	2W	SMA In-Line Module	RoHS Non-Compliant	Active
M3933/25-28S	Cinch Connectivity Solutions Midwest Microwave	2dB	0 Hz ~ 12.4 GHz	50 Ohms	2W	SMA In-Line Module	RoHS Non-Compliant	Active

Engineering Selection Recommendations

Primary Substitutes for Full System Compatibility: M3933/16-06S is the preferred substitute when 2W power handling and full 0 Hz ~ 18 GHz frequency coverage are required. This part maintains electrical equivalence to the AT-102V across all critical parameters. M3933/16-06N provides identical frequency range coverage but does not specify power rating in available documentation.

Compliance Considerations: The AT-102V is RoHS compliant, while all Cinch Connectivity Solutions Midwest Microwave M3933 series substitutes are RoHS non-compliant. Systems subject to RoHS regulatory requirements must account for this compliance difference during design review and procurement planning.

Product Status: The AT-102V is in Last Time Buy status, indicating limited availability. All M3933 series substitutes are in Active production status, ensuring long-term supply continuity for new designs and ongoing production requirements.

Frequency-Limited Applications: For applications operating exclusively within 0 Hz ~ 12.4 GHz, M3933/25-28S or M3933/25-28N provide suitable alternatives with 2W power handling. For applications limited to 0 Hz ~ 2 GHz operation, M3933/25-02N or M3933/25-02S are functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can M3933/16-06S directly replace AT-102V in all applications?

A: M3933/16-06S provides electrical and mechanical equivalence across attenuation value, frequency range, impedance, power rating, and package type. However, RoHS compliance status differs. Designs requiring RoHS compliance must evaluate this difference during component qualification.

Q: What is the difference between M3933/16-06N and M3933/16-06S?

A: Both parts provide 2dB attenuation across 0 Hz ~ 18 GHz at 50 Ohms impedance in SMA in-line module packaging. M3933/16-06S specifies 2W power handling; M3933/16-06N does not provide power rating specification in available data. M3933/16-06S is recommended when power rating confirmation is required.

Q: Can I use M3933/25-02N in a system designed for 18 GHz operation?

A: No. M3933/25-02N is specified for 0 Hz ~ 2 GHz operation only. Use only in applications operating within this frequency range. For 18 GHz system requirements, select M3933/16-06S or M3933/16-06N.

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

A: Yes. All substitute parts use SMA in-line module packaging identical to the AT-102V. Mechanical compatibility is maintained across all listed substitutes.

Q: What should I consider when transitioning from AT-102V to an M3933 series substitute?

A: Verify that your application frequency range does not exceed the substitute part's maximum frequency specification. Confirm RoHS compliance requirements for your end application. Validate that power handling requirements are met by the selected substitute. All parts maintain 50 Ohm impedance and 2dB attenuation, ensuring electrical compatibility.

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