RF Attenuator AT-106(40) Equivalent & Substitute Parts

Part Overview

The AT-106(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 and is currently in Last Time Buy status, indicating production discontinuation. Identifying equivalent and substitute parts is necessary to ensure continued availability and system compatibility for new designs and field replacements.

Key Parameters

Parameter	Value
Attenuation Value	6dB
Frequency Range	0 Hz ~ 18 GHz
Impedance	50 Ohms
Power Rating	1W
Connector 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), impedance (50 ohms), power rating (1W), connector type (SMA In-Line Module), and frequency range capability. Parts are grouped into three categories based on frequency range coverage relative to the main part's 0–18 GHz specification.

Category 1: Full Frequency Range Coverage (0–18 GHz or higher) Parts meeting or exceeding the original frequency range without frequency limitations.

Category 2: Partial Frequency Range Coverage (below 18 GHz) Parts with reduced upper frequency limits but maintaining core attenuation and impedance specifications.

Category 3: Extended Frequency Range Coverage (above 18 GHz) Parts exceeding the original frequency specification, suitable for applications requiring higher frequency operation.

Parameter Comparison

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

Engineering Selection Recommendations

Primary Substitutes (Full Compatibility)

AT-106-WP1(40) and AT-107-WP1(40) from Hirose Electric Co Ltd are direct parametric equivalents with identical frequency range, attenuation, impedance, and power specifications. Both parts are in Active product status, ensuring long-term availability. The 6806.19.A from Huber+Suhner, Inc. provides equivalent electrical performance across the full 0–18 GHz range and is also in Active status.

Secondary Substitutes (Frequency-Limited)

CATTEN-06R0 and R411806124 maintain all core electrical parameters but operate within reduced frequency ranges (3 GHz and 6 GHz respectively). These parts are suitable only for applications where the operating frequency does not exceed their specified upper limits.

Extended-Range Substitute

R413V06000 from Radiall USA, Inc. exceeds the original frequency specification, operating to 67 GHz. This part is applicable for systems requiring higher frequency operation while maintaining the 6dB attenuation and 1W power rating.

Frequently Asked Questions (FAQ)

Q: Can AT-106-WP1(40) directly replace AT-106(40)?

A: Yes. Both parts share identical electrical specifications: 6dB attenuation, 0–18 GHz frequency range, 1W power rating, 50-ohm impedance, and SMA In-Line Module packaging. AT-106-WP1(40) is in Active status, making it the preferred long-term substitute.

Q: What is the difference between AT-106(40) and AT-107-WP1(40)?

A: Both parts are parametrically equivalent with identical attenuation, frequency range, power, impedance, and connector specifications. The difference lies in the base product number designation (AT-106 versus AT-107), but electrical performance is equivalent.

Q: Can CATTEN-06R0 be used in place of AT-106(40)?

A: CATTEN-06R0 is suitable only for applications operating at frequencies up to 3 GHz. The original AT-106(40) operates to 18 GHz. Use CATTEN-06R0 only if your system frequency does not exceed 3 GHz.

Q: Is R413V06000 a suitable substitute for AT-106(40)?

A: R413V06000 maintains all core electrical parameters (6dB attenuation, 1W power, 50-ohm impedance, SMA connectors) and extends frequency coverage to 67 GHz. It is suitable for applications requiring the original 0–18 GHz range and beyond.

Q: What packaging differences exist among the substitute parts?

A: AT-106(40) and 6806.19.A are supplied in Bulk packaging. AT-106-WP1(40) and AT-107-WP1(40) packaging is not specified. CATTEN-06R0 and R413V06000 are supplied in Bulk. R411806124 is supplied in Box packaging. Verify packaging requirements with your procurement specifications.

Q: Are all substitute parts RoHS compliant?

A: AT-106(40), AT-106-WP1(40), and AT-107-WP1(40) are RoHS Compliant. CATTEN-06R0, R411806124, and R413V06000 are ROHS3 Compliant. 6806.19.A is REACH Unaffected. All parts meet current environmental compliance standards.

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