RF Attenuator AT-113(40) Equivalent & Substitute Parts

Part Overview

The AT-113(40) is an RF attenuator manufactured by Hirose Electric Co Ltd, designed for inline attenuation in RF signal paths. This component provides 13dB attenuation across a frequency range of 0 Hz to 18 GHz with 50 Ohm impedance and 1W power handling capability in an SMA connector configuration. The part is currently in Last Time Buy status, making identification of equivalent and substitute components essential for ongoing system design and procurement planning.

Substiute Parts

AT-113(40)

Hirose Electric Co LtdIn Stock: 806AT-113(40) Datasheet

Current PartRFQ

AT-113-WP1(40)

Hirose Electric Co LtdIn Stock: 982AT-113-WP1(40) Datasheet

Parametric EquivalentRFQ

R411813124

Radiall USA, Inc.In Stock: 941R411813124 Datasheet

Parametric EquivalentRFQ

R411814124

Radiall USA, Inc.In Stock: 847R411814124 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RF attenuators is determined by matching critical electrical parameters: attenuation value, frequency range coverage, impedance, and power handling. The AT-113(40) establishes a baseline specification of 13dB attenuation across 0–18 GHz at 50 Ohms with 1W power capacity in SMA In-Line Module packaging.

Substitute parts are grouped into two categories based on parameter alignment:

Full Parametric Equivalents: Parts matching all critical electrical specifications (13dB attenuation, 50 Ohm impedance, 1W power, SMA In-Line Module package). These parts are directly interchangeable in applications requiring the complete frequency range and attenuation profile.

Partial Parametric Equivalents: Parts matching attenuation value, impedance, power rating, and package type but with reduced frequency range coverage (0–6 GHz instead of 0–18 GHz). These parts are suitable for applications operating within their specified frequency limits.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: AT-113-WP1(40) from Hirose Electric Co Ltd is the recommended substitute. This part maintains identical electrical specifications (13dB attenuation, 0–18 GHz frequency range, 50 Ohm impedance, 1W power) and package configuration while offering Active product status, ensuring long-term availability and supply continuity.

Secondary Substitutes: R411813124 and R411814124 from Radiall USA, Inc. are available as alternatives for applications operating within the 0–6 GHz frequency band. R411813124 maintains the 13dB attenuation specification, while R411814124 provides 14dB attenuation. Both parts meet 50 Ohm impedance and 1W power requirements in SMA In-Line Module packaging with ROHS3 compliance.

Selection between primary and secondary substitutes depends on application frequency requirements. Applications requiring full 0–18 GHz coverage must use AT-113-WP1(40). Applications limited to 0–6 GHz operation may use Radiall components, with attenuation value selection based on circuit design requirements.

Frequently Asked Questions (FAQ)

Q: Can AT-113-WP1(40) be used as a direct replacement for AT-113(40)?

A: Yes. AT-113-WP1(40) is a full parametric equivalent with identical attenuation (13dB), frequency range (0–18 GHz), impedance (50 Ohms), power rating (1W), and SMA In-Line Module packaging. The primary advantage is Active product status, providing assured supply availability.

Q: What is the difference between R411813124 and R411814124?

A: Both parts are manufactured by Radiall USA, Inc. and share identical frequency range (0–6 GHz), impedance (50 Ohms), power rating (1W), and SMA In-Line Module packaging. The difference is attenuation value: R411813124 provides 13dB attenuation matching the AT-113(40) specification, while R411814124 provides 14dB attenuation. Selection depends on circuit attenuation requirements.

Q: Can Radiall parts be used in applications requiring 0–18 GHz operation?

A: No. Radiall parts R411813124 and R411814124 are specified for 0–6 GHz frequency range only. Applications requiring operation above 6 GHz must use AT-113(40) or AT-113-WP1(40).

Q: Are all substitute parts RoHS compliant?

A: Yes. AT-113(40) and AT-113-WP1(40) are RoHS Compliant. R411813124 and R411814124 are ROHS3 Compliant. Both compliance levels meet current environmental and regulatory requirements.

Q: What packaging is available for these attenuators?

A: All listed parts are supplied in SMA In-Line Module packaging. AT-113(40) is available in Bulk packaging. AT-113-WP1(40) packaging designation is not specified in available data. R411813124 and R411814124 are available in Bulk packaging.