RF Attenuator AT-210(40) Equivalent & Substitute Parts

Part Overview

The AT-210(40) is a 10dB RF attenuator manufactured by Hirose Electric Co Ltd, designed for inline attenuation across 0 Hz to 18 GHz with 50 Ohm impedance and 1W power handling capability. The part features SMA connectors in a compact in-line module format. Currently classified as Last Time Buy, alternative equivalent parts are available from multiple manufacturers to ensure supply continuity and design flexibility.

Key Parameters

Parameter	Value
Attenuation Value	10dB
Frequency Range	0 Hz ~ 18 GHz
Impedance	50 Ohms
Power Rating	1W
Package Type	SMA In-Line Module
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: attenuation value (10dB), impedance (50 Ohms), power rating (1W), package type (SMA In-Line Module), and frequency range compatibility. Parts are grouped into two categories based on frequency range coverage:

Full-Range Equivalents (0 Hz ~ 18 GHz or higher): Parts meeting or exceeding the original frequency specification, providing direct replacement capability without frequency limitations.

Frequency-Limited Equivalents (0 Hz ~ 3 GHz or 0 Hz ~ 6 GHz): Parts with reduced frequency range that maintain all other electrical parameters. These are suitable for applications operating within their specified frequency bands.

Attenuation Tolerance Variants: Parts with 11dB attenuation represent a ±1dB tolerance variant and are listed for reference where attenuation tolerance is acceptable.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Attenuation	Frequency Range	Power (W)	Impedance	Package	Product Status	RoHS Status
AT-210(40)	Hirose Electric Co Ltd	10dB	0 Hz ~ 18 GHz	1W	50 Ohms	SMA In-Line Module	Last Time Buy	RoHS Compliant
AT-110-WP1(40)	Hirose Electric Co Ltd	10dB	0 Hz ~ 18 GHz	1W	50 Ohms	SMA In-Line Module	Active	RoHS Compliant
6810.19.A	Huber+Suhner, Inc.	10dB	0 Hz ~ 18 GHz	1W	50 Ohms	SMA In-Line Module	Active	REACH Unaffected
CATTEN-0100	Crystek Corporation	10dB	0 Hz ~ 3 GHz	1W	50 Ohms	SMA In-Line Module	Active	ROHS3 Compliant
R411810124	Radiall USA, Inc.	10dB	0 Hz ~ 6 GHz	1W	50 Ohms	SMA In-Line Module	Active	ROHS3 Compliant
R411811124	Radiall USA, Inc.	11dB	0 Hz ~ 6 GHz	1W	50 Ohms	SMA In-Line Module	Active	ROHS3 Compliant
R413V10000	Radiall USA, Inc.	10dB	0 Hz ~ 67 GHz	1W	50 Ohms	SMA In-Line Module	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Direct Replacement):

AT-110-WP1(40) from Hirose Electric Co Ltd is the preferred substitute, offering identical electrical specifications and frequency range with Active product status. This part maintains the same manufacturer lineage and RoHS compliance.

6810.19.A from Huber+Suhner, Inc. provides full-range equivalence with Active status and REACH compliance, suitable for applications requiring extended supply assurance.

R413V10000 from Radiall USA, Inc. exceeds frequency range requirements (0 Hz ~ 67 GHz) while maintaining all core electrical parameters, offering the broadest frequency coverage among available substitutes.

Conditional Substitutes (Frequency-Limited Applications):

CATTEN-0100 from Crystek Corporation is suitable for applications operating within 0 Hz ~ 3 GHz, with ROHS3 compliance and Active status.

R411810124 from Radiall USA, Inc. is suitable for applications operating within 0 Hz ~ 6 GHz, with ROHS3 compliance and Active status.

Tolerance Variant:

R411811124 from Radiall USA, Inc. provides 11dB attenuation (±1dB from nominal 10dB) within 0 Hz ~ 6 GHz frequency range. Selection requires confirmation that ±1dB attenuation tolerance is acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can AT-110-WP1(40) be used as a direct replacement for AT-210(40)?

A: Yes. Both parts share identical attenuation (10dB), frequency range (0 Hz ~ 18 GHz), impedance (50 Ohms), power rating (1W), and SMA In-Line Module packaging. AT-110-WP1(40) has Active product status, ensuring continued availability.

Q: What is the difference between full-range and frequency-limited substitutes?

A: Full-range substitutes (AT-110-WP1(40), 6810.19.A, R413V10000) operate across the complete 0 Hz ~ 18 GHz specification. Frequency-limited substitutes (CATTEN-0100 at 0 Hz ~ 3 GHz, R411810124 at 0 Hz ~ 6 GHz) are restricted to lower frequency bands and must only be selected for applications confirmed to operate within those limits.

Q: Is R413V10000 suitable for all applications using AT-210(40)?

A: Yes. R413V10000 exceeds the frequency range requirement (0 Hz ~ 67 GHz versus 0 Hz ~ 18 GHz) while maintaining all other electrical parameters, making it compatible with any application designed for AT-210(40).

Q: Can R411811124 (11dB) replace AT-210(40) (10dB)?

A: Only if the application design permits ±1dB attenuation tolerance. The 1dB difference in attenuation value may affect signal levels and system performance. Confirmation of tolerance acceptance is required before substitution.

Q: What compliance certifications should I verify for my application?

A: Verify RoHS compliance status (RoHS Compliant or ROHS3 Compliant) and REACH status (REACH Affected or REACH Unaffected) against your application and regional requirements. All listed substitutes meet EAR99 export classification.

Q: Are there packaging differences between substitutes?

A: All substitutes use SMA In-Line Module packaging identical to AT-210(40). Packaging format does not differentiate substitute selection.

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