R574492420 RF Switch IC SP4T 18GHz Equivalent & Substitute Parts

Part Overview

The R574492420 is a general-purpose RF switch IC with SP4T (single-pole four-throw) topology designed for operation across 0Hz to 18GHz frequency range. This component features 50-ohm impedance, 60dB minimum isolation, and 0.5dB maximum insertion loss at 18GHz test frequency. The part operates with a supply voltage range of 10.2V to 13V and temperature range of -40°C to 85°C in a module package format.

The R574492420 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain system functionality and ensure continued availability for new designs and production requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	R574492420
Manufacturer	Radiall USA, Inc.
Series	SPnT
Circuit Configuration	SP4T
RF Type	General Purpose
Frequency Range	0Hz ~ 18GHz
Impedance	50Ohm
Isolation (Min)	60dB
Insertion Loss (Max)	0.5dB
Test Frequency	18GHz
Voltage - Supply	10.2V ~ 13V
Operating Temperature	-40°C ~ 85°C
Package / Case	Module
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the R574492420 are identified based on strict electrical and mechanical parameter compatibility. The primary substitution criteria are:

Critical Parameters for Substitution:

Circuit Configuration (SP4T topology)
Frequency Range (0Hz ~ 18GHz)
Impedance (50Ohm)
Isolation specification (60dB minimum)
Insertion Loss specification (0.5dB maximum)
Supply Voltage range (10.2V ~ 13V)
Operating Temperature range (-40°C ~ 85°C)
Package format (Module)

Substitute parts are grouped into two categories:

Category 1: Direct SP4T Equivalents - Parts maintaining identical SP4T circuit configuration with all electrical parameters matching the original specification. These parts are R573412400, R573412405, R573412420, and R573412425.

Category 2: SP3T Alternatives - Parts with SP3T circuit configuration (three-throw instead of four-throw) that maintain all other electrical parameters including frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature. These parts are R573412300, R573412305, R573412320, R573412325, R573412335, and R573412380. SP3T configuration provides reduced switching options compared to SP4T but maintains equivalent RF performance characteristics.

All substitute parts are manufactured by Radiall USA, Inc. and belong to the SPnT series.

Parameter Comparison

Part Number	Circuit	Frequency Range	Impedance	Isolation (Min)	Insertion Loss (Max)	Supply Voltage	Operating Temp	Package	Product Status	RoHS Status
R574492420	SP4T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Obsolete	Not Specified
R573412300	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	Not Specified
R573412305	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	Not Specified
R573412320	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412325	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412335	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412380	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412400	SP4T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	Not Specified
R573412405	SP4T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	Not Specified
R573412420	SP4T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412425	SP4T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (SP4T Configuration):

Parts R573412400, R573412405, R573412420, and R573412425 provide direct functional equivalence to the R574492420 with identical SP4T circuit topology and all electrical specifications. All four parts are classified as Active product status, ensuring continued availability and support.

R573412420 and R573412425 carry ROHS3 compliance certification, providing environmental regulatory alignment for applications requiring RoHS compliance. R573412400 and R573412405 do not specify RoHS status.

For Alternative Selection (SP3T Configuration):

Parts R573412300, R573412305, R573412320, R573412325, R573412335, and R573412380 are suitable for applications where SP3T switching capability is sufficient. These parts maintain identical RF performance parameters including frequency range, impedance, isolation, and insertion loss specifications.

Among SP3T options, R573412320, R573412325, R573412335, and R573412380 carry ROHS3 compliance certification. R573412300 and R573412305 do not specify RoHS status.

All substitute parts are Active product status, ensuring long-term availability compared to the obsolete R574492420.

Frequently Asked Questions (FAQ)

Q: Can R573412420 or R573412425 be used as direct replacements for R574492420?

A: Yes. Both R573412420 and R573412425 maintain identical SP4T circuit configuration and all electrical parameters including frequency range (0Hz ~ 18GHz), impedance (50Ohm), isolation (60dB minimum), insertion loss (0.5dB maximum), supply voltage (10.2V ~ 13V), and operating temperature (-40°C ~ 85°C). Both parts are Active product status and ROHS3 compliant.

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

A: SP4T (single-pole four-throw) provides four switching positions, while SP3T (single-pole three-throw) provides three switching positions. Both configurations maintain identical RF performance specifications for this product line. SP3T parts are suitable for applications requiring only three switching positions.

Q: Are all substitute parts available in the same module package format?

A: Yes. All substitute parts listed are supplied in module package format, matching the original R574492420 package specification.

Q: What is the significance of ROHS3 compliance on substitute parts?

A: ROHS3 compliance indicates adherence to Restriction of Hazardous Substances regulations. Parts R573412320, R573412325, R573412335, R573412380, R573412420, and R573412425 carry ROHS3 certification. This certification is relevant for applications subject to environmental regulatory requirements.

Q: Why is the original R574492420 classified as obsolete?

A: The R574492420 is classified as obsolete, indicating it is no longer in active production. The substitute parts listed are all Active product status, ensuring continued availability for new designs and production requirements.

Q: Do all substitute parts operate within the same temperature and voltage ranges?

A: Yes. All substitute parts operate within the identical supply voltage range (10.2V ~ 13V) and operating temperature range (-40°C ~ 85°C) as the original R574492420.

Q: Which substitute part offers the best long-term availability?

A: All substitute parts are classified as Active product status. R573412420 and R573412425 (SP4T) and R573412320, R573412325, R573412335, and R573412380 (SP3T) all provide equivalent long-term availability. Selection should be based on circuit configuration requirements and RoHS compliance needs.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message