AT-107(40) RF Attenuator 7dB 50 Ohm SMA Equivalent & Substitute Parts

Part Overview

The AT-107(40) is a 7dB RF attenuator manufactured by Hirose Electric Co Ltd, designed for in-line attenuation applications across 0 Hz to 18 GHz frequency range with 50 Ohm impedance and 1W power handling capability in SMA connector configuration. This part is currently in Last Time Buy status, indicating discontinued production. Identifying equivalent and substitute parts is necessary to ensure continued availability for new designs, maintenance, and production continuity.

Substiute Parts

AT-107(40)

Hirose Electric Co LtdIn Stock: 1006AT-107(40) Datasheet

Current PartRFQ

6807.19.A

Huber+Suhner, Inc.In Stock: 10756807.19.A Datasheet

Parametric EquivalentRFQ

CATTEN-07R0

Crystek CorporationIn Stock: 1204CATTEN-07R0 Datasheet

Parametric EquivalentRFQ

R411807124

Radiall USA, Inc.In Stock: 1049R411807124 Datasheet

Parametric EquivalentRFQ

R413307000

Radiall USA, Inc.In Stock: 995R413307000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AT-107(40) are qualified based on the following critical parameters that determine functional equivalence:

• Attenuation Value: Must be 7dB (exact match required)
• Impedance: Must be 50 Ohms (exact match required)
• Power Rating: Must be 1W minimum
• Package / Case: Must be SMA In-Line Module (exact match required)
• Frequency Range: Must cover or exceed the operating bandwidth of the application

Three parametric equivalent parts meet these core substitution criteria. Frequency range variations exist among substitutes, requiring application-specific validation. All substitute parts maintain identical attenuation, impedance, power rating, and package specifications as the main part.

Parameter Comparison

Engineering Selection Recommendations

Direct Frequency Match (Recommended for Broadband Applications): The 6807.19.A from Huber+Suhner provides identical frequency coverage (0 Hz ~ 18 GHz) to the AT-107(40), making it the preferred substitute for applications requiring full bandwidth compatibility without design modification.

Extended Frequency Coverage: The R413307000 from Radiall extends frequency range to 40 GHz while maintaining all other electrical specifications. This part is suitable for applications requiring higher frequency operation or future bandwidth expansion.

Frequency-Limited Substitutes: The CATTEN-07R0 (Crystek, 0 Hz ~ 3 GHz) and R411807124 (Radiall, 0 Hz ~ 4 GHz) are suitable only for applications operating within their respective frequency limits. These parts are not appropriate for systems requiring the full 18 GHz bandwidth of the original AT-107(40).

Compliance Considerations: All substitute parts carry active product status, ensuring long-term availability. The 6807.19.A and CATTEN-07R0 maintain explicit RoHS/REACH compliance documentation. Selection should prioritize parts with documented compliance status matching your supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can I use CATTEN-07R0 or R411807124 as direct replacements for AT-107(40)?

A: Only if your application operates within their frequency limits. CATTEN-07R0 is limited to 0 Hz ~ 3 GHz, and R411807124 to 0 Hz ~ 4 GHz. The AT-107(40) operates to 18 GHz. Verify your system's maximum operating frequency before substitution.

Q: What is the primary difference between the substitute parts?

A: All substitutes maintain identical 7dB attenuation, 50 Ohm impedance, 1W power rating, and SMA in-line package. The only variable is frequency range coverage. Select based on your application's bandwidth requirements.

Q: Is 6807.19.A a true equivalent to AT-107(40)?

A: Yes. The 6807.19.A matches all critical electrical and mechanical parameters, including identical 0 Hz ~ 18 GHz frequency range, making it a direct parametric equivalent.

Q: Why does R413307000 have a 40 GHz frequency range?

A: R413307000 is designed for extended frequency applications. While it exceeds the AT-107(40) specification, it remains electrically compatible for any application within the 0 Hz ~ 18 GHz range.

Q: Are all substitute parts in active production?

A: Yes. All four substitute parts carry Active product status, ensuring continued availability. The AT-107(40) is Last Time Buy, making substitutes necessary for future procurement.

Q: Do I need to modify my PCB layout when switching to a substitute part?

A: No. All substitute parts use identical SMA in-line module packaging, requiring no layout modifications. Electrical performance remains consistent across all substitutes within their respective frequency ranges.