R574492400 RF Switch IC SP4T 18GHz Equivalent & Substitute Parts

Part Overview

The R574492400 is a general-purpose RF switch IC with SP4T (single-pole, four-throw) topology operating across 0Hz to 18GHz frequency range. Manufactured by Radiall USA, Inc., this component features 50Ohm 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 R574492400 carries an obsolete product status, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Substitute parts maintain electrical and mechanical compatibility while offering active product status and current availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	R574492400
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 R574492400 are selected based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Circuit Configuration Match: The R574492400 operates as an SP4T (single-pole, four-throw) switch. Direct substitutes maintain SP4T topology to preserve circuit functionality and pin compatibility.

Frequency Range Compatibility: All substitute parts operate across the identical 0Hz to 18GHz frequency range, ensuring performance across the full operational bandwidth.

Electrical Performance Parameters: Substitute parts maintain 50Ohm impedance, 60dB minimum isolation, and 0.5dB maximum insertion loss specifications at 18GHz test frequency.

Supply Voltage and Temperature Range: All substitutes operate within the 10.2V to 13V supply voltage range and -40°C to 85°C operating temperature range.

Package Format: All substitute parts utilize module package format, maintaining mechanical compatibility with existing designs.

Product Status: Substitute parts carry active product status, ensuring current manufacturing and availability.

The R574492400 substitutes include both SP3T and SP4T circuit configurations. SP4T substitutes provide direct functional equivalence, while SP3T variants offer reduced switching complexity for applications requiring fewer throw positions while maintaining all other electrical specifications.

Parameter Comparison

Part Number	Circuit	Frequency Range	Isolation (Min)	Insertion Loss (Max)	Impedance	Supply Voltage	Operating Temperature	Package	Product Status	RoHS Status
R574492400	SP4T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Obsolete	Not Specified
R573412300	SP3T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	Not Specified
R573412305	SP3T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	Not Specified
R573412320	SP3T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412325	SP3T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412335	SP3T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412380	SP3T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412400	SP4T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	Not Specified
R573412405	SP4T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	Not Specified
R573412420	SP4T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573412425	SP4T	0Hz ~ 18GHz	60dB	0.5dB	50Ohm	10.2V ~ 13V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Functional Equivalents (SP4T Configuration)

The R573412400, R573412405, R573412420, and R573412425 provide direct functional equivalence to the R574492400. These parts maintain identical SP4T circuit topology and all electrical performance specifications. Selection among these SP4T variants depends on RoHS compliance requirements and packaging specifications.

For applications requiring RoHS3 compliance, R573412420 and R573412425 are specified as ROHS3 Compliant. For applications without RoHS compliance mandates, R573412400 and R573412405 are available.

Alternative Configuration (SP3T Configuration)

The R573412300, R573412305, R573412320, R573412325, R573412335, and R573412380 provide SP3T circuit topology. These parts maintain all electrical performance specifications including frequency range, impedance, isolation, and insertion loss. SP3T configuration reduces switching complexity to three throw positions instead of four.

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

Product Status Consideration

All substitute parts carry active product status, ensuring current manufacturing availability and long-term supply continuity compared to the obsolete R574492400.

Frequently Asked Questions (FAQ)

Q: Can R573412400 directly replace R574492400 in existing designs?

A: Yes. The R573412400 maintains identical SP4T circuit topology, frequency range (0Hz to 18GHz), impedance (50Ohm), isolation (60dB minimum), insertion loss (0.5dB maximum), supply voltage (10.2V to 13V), operating temperature (-40°C to 85°C), and module package format. The primary difference is active product status versus obsolete status.

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

A: SP4T (single-pole, four-throw) provides four output positions, while SP3T (single-pole, three-throw) provides three output positions. Both configurations maintain identical electrical performance specifications for frequency range, impedance, isolation, and insertion loss. SP3T variants are suitable for applications requiring only three switching positions.

Q: Are RoHS3 compliant variants required for my application?

A: RoHS3 compliance is required only if your application or end-market mandates compliance with Restriction of Hazardous Substances regulations. R573412320, R573412325, R573412335, R573412380, R573412420, and R573412425 carry ROHS3 Compliant certification. R573412300, R573412305, R573412400, and R573412405 do not specify RoHS compliance status.

Q: Do all substitute parts operate within the same frequency range?

A: Yes. All substitute parts operate across the identical 0Hz to 18GHz frequency range as the R574492400, with 18GHz specified as the test frequency.

Q: Are the electrical performance specifications identical across all substitutes?

A: Yes. All substitute parts maintain 50Ohm impedance, 60dB minimum isolation, and 0.5dB maximum insertion loss specifications. Supply voltage range (10.2V to 13V) and operating temperature range (-40°C to 85°C) are identical across all parts.

Q: What packaging format do all substitute parts use?

A: All substitute parts utilize module package format, maintaining mechanical compatibility with the R574492400.

Q: Which substitute part offers the highest inventory availability?

A: R573412420 carries 1186 pieces in stock, representing the highest inventory level among all substitute parts listed.

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