RF Attenuator AT-206(40) Equivalent & Substitute Parts

Part Overview

The AT-206(40) is a 6dB RF attenuator manufactured by Hirose Electric Co Ltd, designed for inline attenuation in 50-ohm RF systems operating from DC to 18 GHz with 1W power handling capability. The part features SMA connectors in a compact in-line module package and is RoHS compliant with MSL 1 rating.

This part is currently in Last Time Buy status, indicating production discontinuation. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring 6dB attenuation across the specified frequency and power range.

Key Parameters

Parameter	Value
Attenuation Value	6dB
Frequency Range	0 Hz ~ 18 GHz
Impedance	50 Ohms
Power Rating	1W
Package Type	SMA In-Line Module
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters:

Attenuation Value: 6dB (exact match required)
Impedance: 50 Ohms (exact match required)
Power Rating: 1W (exact match required)
Package Type: SMA In-Line Module (exact match required)
Frequency Range: Must support the application's operating bandwidth

The substitute parts listed below meet the core electrical and mechanical specifications. Frequency range variations exist among substitutes and must be evaluated against specific application requirements. All substitutes maintain 50-ohm impedance, 6dB attenuation, and 1W power handling in SMA in-line module form factor.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Attenuation	Frequency Range	Power (W)	Impedance	Package	Product Status	RoHS Status	Inventory
AT-206(40)	Hirose Electric Co Ltd	6dB	0 Hz ~ 18 GHz	1W	50 Ohms	SMA In-Line Module	Last Time Buy	RoHS Compliant	1051 Pcs
AT-106-WP1(40)	Hirose Electric Co Ltd	6dB	0 Hz ~ 18 GHz	1W	50 Ohms	SMA In-Line Module	Active	RoHS Compliant	1012 Pcs
AT-107-WP1(40)	Hirose Electric Co Ltd	6dB	0 Hz ~ 18 GHz	1W	50 Ohms	SMA In-Line Module	Active	RoHS Compliant	903 Pcs
6806.19.A	Huber+Suhner, Inc.	6dB	0 Hz ~ 18 GHz	1W	50 Ohms	SMA In-Line Module	Active	REACH Unaffected	990 Pcs
CATTEN-06R0	Crystek Corporation	6dB	0 Hz ~ 3 GHz	1W	50 Ohms	SMA In-Line Module	Active	ROHS3 Compliant	828 Pcs
R411806124	Radiall USA, Inc.	6dB	0 Hz ~ 6 GHz	1W	50 Ohms	SMA In-Line Module	Active	ROHS3 Compliant	1052 Pcs
R413V06000	Radiall USA, Inc.	6dB	0 Hz ~ 67 GHz	1W	50 Ohms	SMA In-Line Module	Active	ROHS3 Compliant	1136 Pcs

Engineering Selection Recommendations

Hirose Electric Substitutes (AT-106-WP1(40), AT-107-WP1(40)): These parts are direct parametric equivalents from the same manufacturer with identical frequency range (0 Hz ~ 18 GHz) and active product status. Both maintain RoHS compliance and are recommended as primary alternatives for AT-206(40) replacement.

Huber+Suhner 6806.19.A: Provides full frequency range coverage (0 Hz ~ 18 GHz) matching the original part specifications. Active product status and REACH compliance support long-term availability.

Radiall R413V06000: Offers extended frequency range capability (0 Hz ~ 67 GHz), exceeding the original part's 18 GHz specification. Suitable for applications requiring broader bandwidth coverage. ROHS3 compliant with active status.

Radiall R411806124: Frequency range limited to 0 Hz ~ 6 GHz. Selection requires confirmation that application bandwidth does not exceed 6 GHz. ROHS3 compliant with active status.

Crystek CATTEN-06R0: Frequency range limited to 0 Hz ~ 3 GHz. Selection requires confirmation that application bandwidth does not exceed 3 GHz. ROHS3 compliant with active status.

Frequently Asked Questions (FAQ)

Q: Can AT-106-WP1(40) or AT-107-WP1(40) be used as direct replacements for AT-206(40)?

A: Yes. Both parts match all critical parameters: 6dB attenuation, 50-ohm impedance, 1W power rating, SMA in-line module package, and 0 Hz ~ 18 GHz frequency range. Both are active products from Hirose Electric.

Q: What is the difference between the Hirose substitutes and the Radiall/Crystek options?

A: Hirose AT-106-WP1(40) and AT-107-WP1(40) provide identical frequency coverage to the original AT-206(40). Radiall and Crystek parts have restricted frequency ranges: R411806124 operates to 6 GHz, CATTEN-06R0 to 3 GHz, while R413V06000 extends to 67 GHz. Selection depends on application bandwidth requirements.

Q: Are all substitute parts RoHS compliant?

A: The Hirose parts (AT-206, AT-106-WP1, AT-107-WP1) and Huber+Suhner 6806.19.A are RoHS compliant. Radiall parts (R411806124, R413V06000) and Crystek CATTEN-06R0 are ROHS3 compliant. Both compliance levels are acceptable for RoHS-regulated applications.

Q: Does frequency range affect substitution suitability?

A: Yes. The substitute part's frequency range must support the application's operating bandwidth. Parts with lower frequency limits (CATTEN-06R0 at 3 GHz, R411806124 at 6 GHz) are suitable only for applications operating within those ranges. Parts with higher limits (R413V06000 at 67 GHz) provide additional margin.

Q: Are packaging differences significant between substitutes?

A: All substitutes use SMA in-line module packaging, matching the original AT-206(40). Packaging variations (Bulk vs. Box) relate to order quantity and logistics only and do not affect electrical or mechanical compatibility.

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