RF Attenuator 1dB 50 Ohm N-Type AT-401(40) Equivalent & Substitute Parts

Part Overview

The Hirose Electric Co Ltd AT-401(40) is a 1dB RF attenuator designed for inline applications across 0 Hz to 13 GHz frequency range with 50 Ohm impedance and 2W power handling capability. This component is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute parts is necessary to ensure continued availability for system integration, maintenance, and new production requirements.

Key Parameters

Parameter	Value
Attenuation Value	1dB
Frequency Range	0 Hz ~ 13 GHz
Impedance	50 Ohms
Power Rating	2W
Package Type	N-Type In-Line Module
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the AT-401(40) is determined by matching the following critical parameters: 1dB attenuation value, 50 Ohm impedance, 2W power rating, and N-Type In-Line Module package configuration. Frequency range compatibility is evaluated on an application-specific basis, where substitute parts with equal or greater frequency coverage are considered parametrically equivalent. All listed substitutes maintain identical attenuation, impedance, power, and package specifications as the primary part.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Attenuation	Frequency Range	Power (W)	Impedance	Package	Product Status	Inventory (Pcs)
AT-401(40)	Hirose Electric Co Ltd	1dB	0 Hz ~ 13 GHz	2W	50 Ohms	N-Type In-Line Module	Last Time Buy	1054
6801.17.A	Huber+Suhner, Inc.	1dB	0 Hz ~ 12.4 GHz	2W	50 Ohms	N-Type In-Line Module	Active	1132
6801_N-50-1/1--_NE	Huber+Suhner, Inc.	1dB	0 Hz ~ 6 GHz	2W	50 Ohms	N-Type In-Line Module	Active	884
ATT-0218-01-NNN-02	Cinch Connectivity Solutions Midwest Microwave	1dB	0 Hz ~ 12.4 GHz	2W	50 Ohms	N-Type In-Line Module	Active	743
ATT-0219-01-NNN-02	Cinch Connectivity Solutions Midwest Microwave	1dB	0 Hz ~ 18 GHz	2W	50 Ohms	N-Type In-Line Module	Active	1037
R412701000	Radiall USA, Inc.	1dB	0 Hz ~ 2 GHz	2W	50 Ohms	N-Type In-Line Module	Active	1049
R414701000	Radiall USA, Inc.	1dB	0 Hz ~ 12.4 GHz	2W	50 Ohms	N-Type In-Line Module	Active	1167
R414701161	Radiall USA, Inc.	1dB	0 Hz ~ 18 GHz	2W	50 Ohms	N-Type In-Line Module	Active	1032

Engineering Selection Recommendations

All substitute parts listed maintain Active product status, ensuring long-term availability and supply chain continuity. The AT-401(40) primary part is Last Time Buy, making transition to an active substitute necessary for ongoing production.

For applications requiring full 13 GHz coverage, ATT-0219-01-NNN-02 and R414701161 provide extended frequency range to 18 GHz with Active status and ROHS3 compliance. Both parts are manufactured by established RF component suppliers with equivalent inventory levels.

For applications with frequency requirements up to 12.4 GHz, 6801.17.A and R414701000 provide parametrically equivalent performance with Active status. The 6801.17.A part carries REACH Unaffected designation.

For applications limited to 6 GHz or lower, 6801_N-50-1/1--_NE is suitable with ROHS3 compliance and Active status.

For applications limited to 2 GHz or lower, R412701000 provides the narrowest frequency specification with Active status.

Frequently Asked Questions (FAQ)

Q: Can any of these substitute parts directly replace the AT-401(40)? A: All listed substitute parts are parametrically equivalent for the core electrical specifications: 1dB attenuation, 50 Ohm impedance, 2W power rating, and N-Type In-Line Module package. Selection depends on the maximum frequency requirement of the application.

Q: What is the difference between the substitute parts? A: The substitute parts differ in maximum frequency coverage. ATT-0219-01-NNN-02 and R414701161 extend to 18 GHz, 6801.17.A and R414701000 extend to 12.4 GHz, 6801_N-50-1/1--_NE extends to 6 GHz, and R412701000 extends to 2 GHz. All maintain identical attenuation, impedance, and power specifications.

Q: Are there compliance differences between substitutes? A: The AT-401(40) is RoHS Compliant. Substitute parts carry either RoHS Compliant or ROHS3 Compliant designations. ATT-0219-01-NNN-02 and R414701000 carry ROHS3 Compliant status. 6801.17.A carries REACH Unaffected designation.

Q: How do I select the correct substitute for my application? A: Identify the maximum frequency requirement of your system. Select a substitute part with frequency coverage equal to or greater than this requirement. All substitutes maintain identical attenuation, impedance, power, and package specifications.

Q: Are all substitutes available in the same packaging? A: All substitute parts are supplied in Bulk packaging, consistent with the AT-401(40) primary part specification.

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