RF Attenuator AT-601(40) Equivalent & Substitute Parts

Part Overview

The AT-601(40) is a 1dB RF attenuator manufactured by Hirose Electric Co Ltd, designed for in-line attenuation applications across 0 Hz to 6 GHz frequency range with 2W power handling capability and 50 Ohm impedance. The part is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts becomes necessary when original inventory is depleted or when design flexibility permits selection from active production alternatives that maintain core electrical and mechanical specifications.

Substiute Parts

AT-601(40)

Hirose Electric Co LtdIn Stock: 791AT-601(40) Datasheet

Current PartRFQ

R412501000

Radiall USA, Inc.In Stock: 1170R412501000 Datasheet

Parametric EquivalentRFQ

R414501000

Radiall USA, Inc.In Stock: 1212R414501000 Datasheet

Parametric EquivalentRFQ

R414501161

Radiall USA, Inc.In Stock: 851R414501161 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT-601(40) is determined by strict equivalence across five critical parameters: attenuation value (1dB), power rating (2W), impedance (50 Ohms), package type (TNC In-Line Module), and connector compatibility. All substitute parts listed maintain these core specifications. Frequency range variations among substitutes reflect different upper frequency limits while maintaining the 0 Hz lower bound. Selection among substitutes depends on application frequency requirements and product status availability.

Parameter Comparison

Engineering Selection Recommendations

All three Radiall substitute parts (R412501000, R414501000, R414501161) maintain electrical and mechanical equivalence to the AT-601(40) across mandatory parameters: 1dB attenuation, 2W power handling, 50 Ohm impedance, and TNC In-Line Module packaging. All substitutes carry active product status with ROHS3 compliance, providing supply continuity advantages over the Last Time Buy AT-601(40).

Selection among substitutes is determined by application frequency requirements. R412501000 operates to 2 GHz, suitable for lower frequency applications. R414501000 extends to 12.4 GHz, covering mid-range RF applications. R414501161 provides the widest frequency coverage to 18 GHz, appropriate for high-frequency system designs. The AT-601(40) specification of 0 Hz to 6 GHz is directly covered by R414501000 and R414501161, both of which exceed the original frequency range while maintaining all other electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can R412501000 replace AT-601(40) in all applications? R412501000 is electrically equivalent for attenuation, power, and impedance specifications but operates only to 2 GHz. It is suitable only for applications operating within 0 Hz to 2 GHz frequency range. Applications requiring operation above 2 GHz require R414501000 or R414501161.

Q: What is the difference between R414501000 and R414501161? Both parts are electrically identical in attenuation (1dB), power (2W), impedance (50 Ohms), and package type (TNC In-Line Module). The difference is frequency range: R414501000 operates to 12.4 GHz while R414501161 operates to 18 GHz. Selection depends on the maximum frequency requirement of the application.

Q: Are all substitutes mechanically compatible with the original AT-601(40)? Yes. All substitute parts use identical TNC In-Line Module packaging, ensuring mechanical and connector compatibility with existing system designs.

Q: Does the AT-601(40) Last Time Buy status affect substitute selection? Yes. The AT-601(40) is discontinued production. All three Radiall substitutes carry Active product status, ensuring long-term supply availability and continued manufacturing support.

Q: Are there RoHS compliance differences between the original and substitutes? The AT-601(40) is RoHS Compliant. All substitutes are ROHS3 Compliant, representing an enhanced compliance standard. This upgrade presents no compatibility issues for existing designs.