RF Attenuator AT-510(40) Equivalent & Substitute Parts

Part Overview

The AT-510(40) is a 10dB RF attenuator manufactured by Hirose Electric Co Ltd, designed for inline attenuation applications across 0 Hz to 4 GHz frequency range with 50 Ohm impedance and 2W power handling capability. The part features BNC connectors in a compact in-line module package. This product is designated as Last Time Buy, indicating end-of-life status. Identifying equivalent substitute parts ensures continued availability and supply chain continuity for applications requiring this specific attenuation and frequency performance.

Substiute Parts

AT-510(40)

Hirose Electric Co LtdIn Stock: 1185AT-510(40) Datasheet

Current PartRFQ

CATTEN-0100-BNC

Crystek CorporationIn Stock: 828CATTEN-0100-BNC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RF attenuators is determined by matching the following critical parameters:

• Attenuation Value: Must be 10dB
• Impedance: Must be 50 Ohms
• Package / Case: Must be BNC In-Line Module
• Power Rating: Must be 2W minimum
• Connector Type: Must be BNC

The CATTEN-0100-BNC from Crystek Corporation meets these core substitution criteria. While the frequency range differs (0 Hz ~ 1 GHz versus 0 Hz ~ 4 GHz), this represents a narrower operational bandwidth and does not prevent substitution in applications operating within the 0 Hz ~ 1 GHz window. All electrical and mechanical parameters align with the AT-510(40) specification.

Parameter Comparison

Engineering Selection Recommendations

The CATTEN-0100-BNC qualifies as a direct substitute for the AT-510(40) based on matching attenuation, impedance, power rating, and package specifications. The Crystek part carries Active product status, ensuring ongoing availability and supply chain stability compared to the Last Time Buy designation of the Hirose component. Both parts maintain equivalent RoHS compliance certifications (RoHS3 represents an updated compliance standard). Selection of the CATTEN-0100-BNC is appropriate for applications operating within the 0 Hz ~ 1 GHz frequency band. Applications requiring full 0 Hz ~ 4 GHz coverage must retain the AT-510(40) or identify alternative sources with matching extended frequency specifications.

Frequently Asked Questions (FAQ)

Q: Can the CATTEN-0100-BNC replace the AT-510(40) in all applications?

A: The CATTEN-0100-BNC is a valid substitute for applications operating within 0 Hz ~ 1 GHz. Applications requiring attenuation performance above 1 GHz must use the AT-510(40) or equivalent parts with extended frequency range specifications.

Q: Are the BNC connectors mechanically compatible?

A: Yes. Both parts use standard BNC In-Line Module packaging, ensuring mechanical and electrical connector compatibility.

Q: What is the difference between RoHS and ROHS3 compliance?

A: Both certifications indicate lead-free and restricted substance compliance. ROHS3 represents the current regulatory standard. Both parts meet environmental compliance requirements.

Q: Why is the AT-510(40) marked as Last Time Buy?

A: Last Time Buy designation indicates the manufacturer is discontinuing production. The CATTEN-0100-BNC, with Active status, provides supply continuity for equivalent attenuation applications.

Q: Are there impedance or power rating differences that affect substitution?

A: No. Both parts maintain identical 50 Ohm impedance and 2W power ratings, ensuring electrical performance equivalence within their respective frequency ranges.