R574482405 RF Switch IC SP4T 18GHz Equivalent & Substitute Parts

Part Overview

The R574482405 is a general-purpose RF switch integrated circuit with SP4T (single-pole four-throw) topology designed for operation up to 18GHz. Manufactured by Radiall USA, Inc., this component operates at 50 ohm impedance with 60dB minimum isolation and 0.5dB maximum insertion loss. The R574482405 is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing system designs and maintenance applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	R574482405
Manufacturer	Radiall USA, Inc.
Series	SPnT
Circuit Configuration	SP4T
RF Type	General Purpose
Frequency Range	0Hz ~ 18GHz
Impedance	50 Ohm
Isolation (Minimum)	60dB
Insertion Loss (Maximum)	0.5dB
Test Frequency	18GHz
Supply Voltage Range	10.2V ~ 13V
Operating Temperature Range	-40°C ~ 85°C
Package Type	Module
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the R574482405 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Circuit configuration (SP4T topology)
Frequency range capability (0Hz ~ 18GHz minimum)
Impedance matching (50 Ohm)
Isolation performance (60dB minimum)
Insertion loss specification (0.5dB maximum)
Supply voltage compatibility (10.2V ~ 13V)
Operating temperature range (-40°C ~ 85°C)
Package type (Module)

Substitute Categories:

Category 1: Direct SP4T Equivalents (Active Status) Parts maintaining identical SP4T circuit configuration with all electrical parameters matching the original specification. These components provide direct functional replacement without topology modification.

Category 2: SP3T Alternatives (Active Status) Parts with SP3T circuit configuration (single-pole three-throw) that maintain all other electrical parameters. These components provide reduced switching capability but retain frequency, impedance, isolation, and insertion loss specifications. Selection of SP3T alternatives requires system-level evaluation of switching requirements.

Parameter Comparison

Part Number	Manufacturer	Circuit	Frequency Range	Impedance	Isolation (Min)	Insertion Loss (Max)	Supply Voltage	Operating Temp	Product Status	Packaging
R574482405	Radiall USA, Inc.	SP4T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Obsolete	Module
R573412300	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk
R573412305	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk
R573412320	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk
R573412325	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk
R573412335	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk
R573412380	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk
R573412400	Radiall USA, Inc.	SP4T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk
R573412405	Radiall USA, Inc.	SP4T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk
R573412420	Radiall USA, Inc.	SP4T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk
R573412425	Radiall USA, Inc.	SP4T	0Hz ~ 18GHz	50 Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Active	Bulk

Engineering Selection Recommendations

Direct Replacement (SP4T Configuration):

The following active components provide direct functional equivalence to the R574482405 with identical SP4T circuit topology and all electrical specifications:

R573412400
R573412405
R573412420
R573412425

These parts maintain the four-throw switching capability of the original component and are suitable for direct substitution in applications requiring SP4T functionality. All listed SP4T alternatives are in active product status, ensuring ongoing availability and support.

Alternative Selection (SP3T Configuration):

The following active components provide electrical parameter equivalence with SP3T circuit topology:

R573412300
R573412305
R573412320
R573412325
R573412335
R573412380

These parts are suitable for applications where three-throw switching capability satisfies system requirements. Selection of SP3T alternatives requires confirmation that the reduced switching configuration does not compromise system functionality.

Compliance Considerations:

Parts R573412320, R573412325, R573412335, R573412380, R573412420, and R573412425 are identified as ROHS3 compliant. Selection of these components is appropriate for applications subject to RoHS (Restriction of Hazardous Substances) requirements.

Frequently Asked Questions (FAQ)

Q: Can R573412400, R573412405, R573412420, or R573412425 be used as direct replacements for the obsolete R574482405?

A: Yes. These SP4T RF switch components maintain identical electrical specifications including frequency range (0Hz ~ 18GHz), impedance (50 Ohm), isolation (60dB minimum), insertion loss (0.5dB maximum), supply voltage (10.2V ~ 13V), and operating temperature range (-40°C ~ 85°C). All are in active product status.

Q: What is the difference between SP4T and SP3T circuit configurations?

A: SP4T (single-pole four-throw) provides four output switching positions, while SP3T (single-pole three-throw) provides three output switching positions. Both configurations maintain identical electrical performance specifications. Selection depends on the number of switching paths required by the application.

Q: Are the SP3T alternatives (R573412300, R573412305, R573412320, R573412325, R573412335, R573412380) suitable substitutes?

A: SP3T alternatives are suitable only for applications where three-throw switching capability is sufficient. All electrical parameters including frequency range, impedance, isolation, and insertion loss are identical to the original SP4T component. System-level evaluation is required to confirm that reduced switching capability does not impact functionality.

Q: What is the difference between Bulk and Module packaging?

A: The original R574482405 is supplied in Module packaging. All substitute parts are supplied in Bulk packaging. Packaging differences do not affect electrical performance or functional compatibility. Procurement and handling procedures may differ based on packaging type.

Q: Which substitute parts are RoHS3 compliant?

A: R573412320, R573412325, R573412335, R573412380, R573412420, and R573412425 are identified as ROHS3 compliant. These components are appropriate for applications subject to RoHS requirements.

Q: Are all substitute parts manufactured by Radiall USA, Inc.?

A: Yes. All substitute parts listed are manufactured by Radiall USA, Inc., maintaining consistency with the original component manufacturer.

Q: What inventory levels are available for the substitute parts?

A: Current inventory levels vary by part number, ranging from 685 to 1186 pieces in stock. Specific availability should be confirmed at the time of procurement.

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