R573813645 RF Switch IC SP6T 40GHz Equivalent & Substitute Parts

Part Overview

The R573813645 is an RF Switch IC featuring a single-pole six-throw (SP6T) topology designed for general-purpose RF switching applications. This active product operates across a frequency range of 0Hz to 40GHz with 50-ohm impedance and is manufactured by Radiall USA, Inc. The part is supplied in module packaging and is ROHS3 compliant.

Equivalent and substitute parts are identified based on matching electrical performance parameters, operating specifications, and physical packaging requirements. Alternative models within the SPnT series provide functional substitution for applications where circuit topology flexibility or inventory availability necessitates component selection from the qualified substitute list.

Substiute Parts

R573813645

Radiall USA, Inc.In Stock: 1018R573813645 Datasheet

Current PartRFQ

R573803320

Radiall USA, Inc.In Stock: 809R573803320 Datasheet

Parametric EquivalentRFQ

R573883400

Radiall USA, Inc.In Stock: 1118R573883400 Datasheet

Parametric EquivalentRFQ

R573883600

Radiall USA, Inc.In Stock: 1063R573883600 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are qualified based on the following electrical and mechanical parameters that determine functional compatibility:

Primary Matching Criteria:

• Frequency Range: 0Hz ~ 40GHz
• Impedance: 50Ohm
• Isolation: 50dB (min)
• Insertion Loss: 1.1dB (max)
• Supply Voltage: 24V ~ 30V
• Operating Temperature: -40°C ~ 85°C
• Package Type: Module
• RF Type: General Purpose
• Product Status: Active
• RoHS Compliance: ROHS3 Compliant

Circuit Topology Variations: Substitute parts are available in SP3T, SP4T, and SP6T configurations. The SP6T topology (R573813645 and R573883600) provides identical switching throw capability. The SP3T (R573803320) and SP4T (R573883400) variants offer reduced throw counts and are suitable for applications requiring fewer switching positions while maintaining all other electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Identical Topology): R573883600 is a direct equivalent to R573813645, both featuring SP6T topology with identical electrical specifications and ROHS3 compliance. This part is suitable for direct substitution in applications requiring six-throw switching capability.

Reduced Throw Alternatives: R573803320 (SP3T) and R573883400 (SP4T) are functionally compatible substitutes for applications requiring fewer switching positions. These parts maintain all critical electrical parameters including frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature specifications. Selection between these variants depends on the specific number of switching positions required by the application circuit design.

Compliance Considerations: All substitute parts maintain active product status and are manufactured by Radiall USA, Inc. R573883600 and R573883400 carry explicit ROHS3 compliance certification. Component selection should align with system-level regulatory and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can R573883600 replace R573813645 in existing designs? A: Yes. R573883600 is a direct equivalent with identical SP6T topology and all matching electrical specifications. Both parts are ROHS3 compliant and operate within the same frequency, impedance, isolation, insertion loss, voltage, and temperature parameters.

Q: What is the functional difference between SP6T, SP4T, and SP3T topologies? A: The designations indicate the number of throw positions available. SP6T provides six throw positions, SP4T provides four throw positions, and SP3T provides three throw positions. All variants maintain identical electrical performance across frequency range, impedance, isolation, and insertion loss specifications.

Q: Are SP3T and SP4T variants suitable substitutes for SP6T applications? A: SP3T and SP4T variants are suitable only for applications requiring three or four switching positions respectively. If the circuit design requires six throw positions, only SP6T variants (R573813645 or R573883600) are appropriate.

Q: Do all substitute parts operate at the same supply voltage? A: Yes. All substitute parts operate within the 24V to 30V supply voltage range and are compatible with identical power supply specifications.

Q: What is the operating temperature range for all parts? A: All parts operate across the temperature range of -40°C to 85°C, enabling use in both industrial and extended temperature applications.

Q: Are there packaging differences between the main part and substitutes? A: No. All parts are supplied in module packaging format with identical physical form factors.

Q: What RoHS compliance status applies to each part? A: R573813645, R573883600, and R573883400 are ROHS3 compliant. R573803320 does not specify RoHS compliance status in the provided documentation.