RF Attenuator AT-2306(40) Equivalent & Substitute Parts

Part Overview

The AT-2306(40) is a 6dB RF attenuator manufactured by Hirose Electric Co Ltd, designed for 50-ohm impedance applications across the 0 Hz to 2.5 GHz frequency range with 1W power handling capability in an SMA in-line module configuration. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain the same electrical and mechanical specifications for continued system integration and procurement.

Key Parameters

Parameter	Value
Attenuation Value	6dB
Frequency Range	0 Hz ~ 2.5 GHz
Power Rating	1W
Impedance	50 Ohms
Package / Case	SMA In-Line Module
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parametric matching across the following criteria:

Attenuation Value: Must equal 6dB
Impedance: Must equal 50 Ohms
Power Rating: Must equal or exceed 1W
Package / Case: Must be SMA In-Line Module
Frequency Range: Must encompass or equal the operating band of 0 Hz ~ 2.5 GHz

All identified substitute parts meet these core electrical and mechanical requirements. Frequency range extensions beyond 2.5 GHz do not disqualify parts, as they remain backward compatible with the original specification. Parts are grouped by manufacturer and product status to facilitate procurement decisions.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Attenuation	Frequency Range	Power (W)	Impedance	Package	Product Status	RoHS Status
AT-2306(40)	Hirose Electric Co Ltd	6dB	0 Hz ~ 2.5 GHz	1W	50 Ohms	SMA In-Line Module	Obsolete	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

All substitute parts listed maintain active product status and meet or exceed the electrical specifications of the AT-2306(40). Selection should prioritize parts with matching RoHS compliance status to the original specification. The Hirose Electric Co Ltd alternatives AT-106-WP1(40) and AT-107-WP1(40) provide direct manufacturer continuity with extended frequency capability and active availability. For applications requiring frequency coverage limited to 2.5 GHz, the Crystek CATTEN-06R0 provides a cost-effective alternative with ROHS3 compliance. Radiall USA, Inc. parts R411806124 and R413V06000 offer extended frequency ranges suitable for broadband applications, with R413V06000 supporting operation to 67 GHz. All parts maintain identical 50-ohm impedance, 1W power rating, and SMA in-line module packaging.

Frequently Asked Questions (FAQ)

Q: Can AT-106-WP1(40) or AT-107-WP1(40) directly replace AT-2306(40)?

A: Yes. Both parts maintain identical attenuation (6dB), impedance (50 Ohms), power rating (1W), and SMA in-line module packaging. The extended frequency range to 18 GHz does not affect operation within the original 2.5 GHz specification and provides additional capability margin.

Q: What is the difference between Hirose, Huber+Suhner, Crystek, and Radiall alternatives?

A: All parts meet the core parametric requirements. Hirose alternatives maintain manufacturer continuity. Huber+Suhner 6806.19.A extends to 18 GHz. Crystek CATTEN-06R0 limits to 3 GHz but remains within the 2.5 GHz requirement. Radiall parts extend to 6 GHz and 67 GHz respectively, offering broader frequency coverage for future-proofing.

Q: Are there packaging differences between substitutes?

A: All substitute parts use SMA in-line module packaging identical to the AT-2306(40). Packaging variations (Bulk vs. Box) reflect inventory management only and do not affect electrical or mechanical compatibility.

Q: Does frequency range extension affect compatibility?

A: No. Parts with frequency ranges exceeding 2.5 GHz remain fully compatible with applications designed for the AT-2306(40). Extended frequency capability does not degrade performance within the original operating band.

Q: Which substitute offers the best compliance profile?

A: AT-106-WP1(40) and AT-107-WP1(40) maintain RoHS Compliant status matching the original part. Radiall and Crystek alternatives carry ROHS3 Compliant certification, which represents an updated compliance standard. Selection should align with system-level compliance requirements.

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