R574493480 RF Switch IC SP4T 18GHz Equivalent & Substitute Parts

Part Overview

The R574493480 is a general-purpose RF switch IC with SP4T (single-pole four-throw) topology manufactured by Radiall USA, Inc. This component operates across a frequency range of 0Hz to 18GHz with 50-ohm impedance and is designed for RF switching applications requiring high isolation and low insertion loss characteristics.

The R574493480 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this RF switch topology.

Key Parameters

Parameter	Value
Manufacturer Part Number	R574493480
Manufacturer	Radiall USA, Inc.
Circuit Configuration	SP4T
Frequency Range	0Hz ~ 18GHz
Impedance	50Ohm
Isolation (Minimum)	60dB
Insertion Loss (Maximum)	0.5dB
Test Frequency	18GHz
Supply Voltage	24V ~ 30V
Operating Temperature Range	-40°C ~ 85°C
Package Type	Module
RF Type	General Purpose
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the R574493480 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 (50Ohm)
Isolation performance (60dB minimum)
Insertion loss specification (0.5dB maximum)
Supply voltage compatibility (24V ~ 30V)
Operating temperature range (-40°C ~ 85°C)
Package type (Module)

Substitute Part Categories:

Category 1: Direct SP4T Equivalents (Active Status) Parts R573413400 and R573413405 maintain identical circuit topology (SP4T) with all electrical parameters matching the original specification. These components are classified as active products, ensuring ongoing availability and support.

Category 2: SP3T Alternatives (Active Status) Parts R573413300, R573413305, R573413310, R573413315, R573413320, R573413330, R573413340, and R573413345 provide SP3T (single-pole three-throw) topology. These components share identical frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature specifications. The SP3T configuration represents a reduced-throw variant suitable for applications requiring fewer switching positions than the original SP4T design.

All substitute parts listed maintain the 50Ohm impedance, 60dB minimum isolation, 0.5dB maximum insertion loss, 24V to 30V supply voltage range, -40°C to 85°C operating temperature, and Module package type of the original component.

Parameter Comparison

Part Number	Manufacturer	Circuit	Frequency Range	Impedance	Isolation (Min)	Insertion Loss (Max)	Supply Voltage	Operating Temp	Package	Product Status	RoHS3 Compliant
R574493480	Radiall USA, Inc.	SP4T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Obsolete	Not Specified
R573413400	Radiall USA, Inc.	SP4T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	Not Specified
R573413405	Radiall USA, Inc.	SP4T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	Not Specified
R573413300	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	Not Specified
R573413305	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	Not Specified
R573413310	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573413315	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	Not Specified
R573413320	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573413330	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573413340	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant
R573413345	Radiall USA, Inc.	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Module	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (SP4T Topology):

Parts R573413400 and R573413405 provide direct functional equivalence to the R574493480. Both components maintain SP4T circuit configuration with identical electrical specifications across all critical parameters. These parts carry active product status, ensuring long-term availability and manufacturing support. Selection between R573413400 and R573413405 depends on application-specific requirements not differentiated by the provided electrical parameters.

For Reduced-Throw Applications (SP3T Topology):

Parts R573413300, R573413305, R573413310, R573413315, R573413320, R573413330, R573413340, and R573413345 are suitable for applications requiring SP3T switching functionality. These components maintain electrical performance parity with the original part across frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature specifications. The SP3T configuration accommodates designs requiring three switching positions rather than four.

RoHS3 Compliance Consideration:

Parts R573413310, R573413320, R573413330, R573413340, and R573413345 carry explicit ROHS3 compliance certification. Applications subject to RoHS3 regulatory requirements should prioritize these variants. Parts R573413300, R573413305, R573413315, R573413400, and R573413405 do not specify RoHS3 compliance status in the provided data.

Product Status and Supply Chain:

All substitute parts listed carry active product status, contrasting with the obsolete classification of the original R574493480. Active status ensures continued manufacturing, quality assurance, and supplier availability for ongoing production and field support requirements.

Frequently Asked Questions (FAQ)

Q: Can R573413400 or R573413405 directly replace R574493480 in existing designs?

A: Yes. Both R573413400 and R573413405 maintain identical SP4T circuit topology with matching electrical specifications including frequency range (0Hz ~ 18GHz), impedance (50Ohm), isolation (60dB minimum), insertion loss (0.5dB maximum), supply voltage (24V ~ 30V), and operating temperature range (-40°C ~ 85°C). These components are functionally equivalent for applications currently utilizing the R574493480.

Q: What is the functional 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. The SP3T variants listed maintain all electrical performance specifications of the original SP4T part. Applications requiring only three switching positions can utilize SP3T alternatives without performance degradation.

Q: Are the SP3T substitute parts suitable for applications designed for SP4T switching?

A: SP3T parts are suitable only for applications that require three or fewer switching positions. Applications requiring all four switching positions of the original SP4T design must utilize R573413400 or R573413405 to maintain full functionality.

Q: What is the significance of RoHS3 compliance notation on certain substitute parts?

A: RoHS3 compliance indicates adherence to Restriction of Hazardous Substances regulations. Parts R573413310, R573413320, R573413330, R573413340, and R573413345 carry explicit ROHS3 certification. Applications subject to RoHS3 regulatory requirements should specify these variants. Other substitute parts do not provide RoHS3 compliance documentation in the available data.

Q: How does the obsolete status of R574493480 affect component selection?

A: The obsolete status indicates the original part is no longer manufactured or supported by Radiall USA, Inc. All substitute parts listed carry active product status, ensuring ongoing manufacturing, quality control, and supplier availability. Active status provides supply chain continuity and long-term design support.

Q: Are all substitute parts available in the same Module package type?

A: Yes. All substitute parts listed maintain the Module package type of the original R574493480. Package compatibility is maintained across all equivalent and substitute components.

Q: What inventory levels are available for substitute parts?

A: Inventory availability varies across substitute parts. R573413340 maintains the highest inventory at 1,068 pieces, while R573413320 maintains 689 pieces. Current inventory levels should be verified with the supplier for specific procurement requirements.

Q: Can substitute parts be intermixed in multi-unit applications?

A: Yes, provided the application design accommodates the selected circuit topology (SP4T or SP3T). All substitute parts maintain identical electrical performance specifications, allowing interchangeability within topology constraints. Applications utilizing multiple switching units can employ different substitute part numbers without performance variation.

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