RF Attenuator AT-102(40) Equivalent & Substitute Parts

Part Overview

The AT-102(40) is a 2dB RF attenuator manufactured by Hirose Electric Co Ltd, designed for RF signal conditioning applications across 0 Hz to 18 GHz frequency range. This in-line SMA module provides 1W power handling capability with 50 Ohm impedance matching. The part is currently in Last Time Buy status, making identification of equivalent and substitute components essential for ongoing procurement and system design continuity.

Substiute Parts

AT-102(40)

Hirose Electric Co LtdIn Stock: 759AT-102(40) Datasheet

Current PartRFQ

AT-102-WP1(40)

Hirose Electric Co LtdIn Stock: 734AT-102-WP1(40) Datasheet

Parametric EquivalentRFQ

CATTEN-02R0

Crystek CorporationIn Stock: 974CATTEN-02R0 Datasheet

Parametric EquivalentRFQ

R411802124

Radiall USA, Inc.In Stock: 1188R411802124 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT-102(40) is determined by matching the following critical parameters: attenuation value (2dB), impedance (50 Ohms), power rating (1W), package type (SMA In-Line Module), and connector interface. Frequency range compatibility is evaluated on an application-specific basis, as substitute parts may operate within narrower frequency bands while maintaining electrical performance within the required operating window.

The three identified substitute parts meet the core electrical and mechanical requirements:

• AT-102-WP1(40): Parametric equivalent from Hirose Electric Co Ltd with identical electrical specifications
• CATTEN-02R0: Crystek Corporation equivalent with reduced frequency range (0 Hz ~ 3 GHz)
• R411802124: Radiall USA, Inc. equivalent with reduced frequency range (0 Hz ~ 6 GHz)

Parameter Comparison

Engineering Selection Recommendations

AT-102-WP1(40) is the primary substitute for AT-102(40), offering identical electrical and mechanical specifications with Active product status from the same manufacturer. This part provides direct compatibility without frequency range limitations.

For applications operating within 0 Hz to 6 GHz, R411802124 from Radiall USA, Inc. provides an alternative with Active status and ROHS3 compliance certification.

For applications operating within 0 Hz to 3 GHz, CATTEN-02R0 from Crystek Corporation is available with Active status and ROHS3 compliance certification.

Selection should be based on application frequency requirements and supply chain availability. All substitute parts maintain identical attenuation, power rating, impedance, and SMA connector interface specifications.

Frequently Asked Questions (FAQ)

Q: Can CATTEN-02R0 be used as a direct replacement for AT-102(40)?

A: CATTEN-02R0 is electrically equivalent for applications operating within 0 Hz to 3 GHz. Applications requiring operation above 3 GHz require AT-102-WP1(40) or R411802124.

Q: What is the difference between AT-102(40) and AT-102-WP1(40)?

A: Both parts are manufactured by Hirose Electric Co Ltd with identical electrical specifications and frequency range. AT-102-WP1(40) has Active product status, while AT-102(40) is Last Time Buy. AT-102-WP1(40) is the recommended long-term substitute.

Q: Are all substitute parts SMA connector compatible?

A: Yes. All listed substitute parts use SMA In-Line Module packaging with identical connector interface specifications.

Q: Do frequency range differences affect impedance or attenuation performance?

A: No. All parts maintain 50 Ohm impedance and 2dB attenuation across their respective frequency ranges. Frequency range differences reflect component design specifications, not performance variations.

Q: What compliance certifications apply to substitute parts?

A: AT-102-WP1(40) is RoHS Compliant. CATTEN-02R0 and R411802124 are ROHS3 Compliant. All parts carry EAR99 ECCN classification.