AT-2320(40) RF Attenuator 20dB 50 Ohm SMA Equivalent & Substitute Parts

Part Overview

The AT-2320(40) is a 20dB RF attenuator manufactured by Hirose Electric Co Ltd, designed for RF signal attenuation applications across 0 Hz to 2.5 GHz frequency range with 50 Ohm impedance and 1W power handling capability in an SMA in-line module configuration. This part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing system support and procurement planning.

Substiute Parts

AT-2320(40)

Hirose Electric Co LtdIn Stock: 1148AT-2320(40) Datasheet

Current PartRFQ

AT-120-WP1(40)

Hirose Electric Co LtdIn Stock: 1118AT-120-WP1(40) Datasheet

Parametric EquivalentRFQ

6820.19.A

Huber+Suhner, Inc.In Stock: 10356820.19.A Datasheet

Parametric EquivalentRFQ

R411820124

Radiall USA, Inc.In Stock: 753R411820124 Datasheet

Parametric EquivalentRFQ

R413V20000

Radiall USA, Inc.In Stock: 943R413V20000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AT-2320(40) are qualified based on the following critical parameters that must match or exceed the original specification:

• Attenuation Value: 20dB (exact match required)
• Impedance: 50 Ohms (exact match required)
• Power Rating: 1W (minimum requirement)
• Package / Case: SMA In-Line Module (exact match required)
• Frequency Range: Must encompass or exceed 0 Hz ~ 2.5 GHz

Four parametric equivalents meet these substitution criteria. All substitute parts maintain the same attenuation, impedance, power rating, and connector type. Frequency range capabilities vary among substitutes, with some offering extended bandwidth beyond the original specification.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are active products with confirmed inventory availability, providing viable alternatives to the obsolete AT-2320(40).

The AT-120-WP1(40) from Hirose Electric Co Ltd represents the primary substitute option, maintaining manufacturer continuity while offering extended frequency range capability to 18 GHz. This part carries RoHS Compliant certification matching the original specification.

The 6820.19.A from Huber+Suhner, Inc. provides equivalent performance with 18 GHz frequency range and REACH Unaffected status, suitable for applications requiring extended bandwidth.

The R411820124 from Radiall USA, Inc. operates to 6 GHz, meeting the minimum frequency requirement of the original part, with ROHS3 Compliant and REACH Affected certifications.

The R413V20000 from Radiall USA, Inc. extends frequency coverage to 67 GHz, providing maximum bandwidth capability for future-proofing applications, with ROHS3 Compliant and REACH Affected certifications.

Frequently Asked Questions (FAQ)

Q: Can AT-120-WP1(40) directly replace AT-2320(40) in existing designs?

A: Yes. Both parts share identical attenuation (20dB), impedance (50 Ohms), power rating (1W), and SMA in-line module packaging. The AT-120-WP1(40) extends frequency range to 18 GHz, which is compatible with applications originally designed for 2.5 GHz operation.

Q: What is the minimum frequency range requirement for substitution?

A: Substitute parts must support at least 0 Hz to 2.5 GHz to meet the original specification. All four qualified substitutes exceed this requirement.

Q: Are there compliance differences between substitute options?

A: Yes. AT-120-WP1(40) and 6820.19.A carry RoHS Compliant or REACH Unaffected status. R411820124 and R413V20000 carry ROHS3 Compliant status with REACH Affected designation. Selection should align with applicable regulatory requirements for your application.

Q: Does frequency range extension affect electrical performance at 2.5 GHz?

A: Substitute parts with extended frequency ranges (18 GHz and 67 GHz) maintain the specified 20dB attenuation and 50 Ohm impedance across the full frequency spectrum, including the original 2.5 GHz operating point.

Q: What packaging options are available?

A: All substitute parts are supplied in SMA in-line module configuration matching the original AT-2320(40) package type. Packaging format (Bulk) is consistent across active substitutes.