R574492325 RF Switch IC SP3T 18GHz Equivalent & Substitute Parts

Part Overview

The R574492325 is a general-purpose RF switch IC with SP3T (single-pole, three-throw) topology manufactured by Radiall USA, Inc. This component operates across a frequency range of 0Hz to 18GHz with 50-ohm impedance and is packaged as a module. The R574492325 is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system integration and design support.

Key Parameters

Parameter	Value
Manufacturer Part Number	R574492325
Manufacturer	Radiall USA, Inc.
Description	IC RF SWITCH SP3T 18GHZ
Series	SPnT
Circuit Configuration	SP3T
Frequency Range	0Hz ~ 18GHz
Impedance	50Ohm
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 / Case	Module
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the R574492325 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute parts maintain identical specifications in the following key areas:

Electrical Parameters:

Circuit topology: SP3T (single-pole, three-throw)
Frequency range: 0Hz ~ 18GHz
Impedance: 50Ohm
Isolation: 60dB (minimum)
Insertion loss: 0.5dB (maximum)
Test frequency: 18GHz
Supply voltage: 10.2V ~ 13V
Operating temperature: -40°C ~ 85°C

Mechanical Parameters:

Package type: Module
Series: SPnT

All substitute parts listed are manufactured by Radiall USA, Inc., and are classified as active products with current inventory availability. The substitutes differ from the main part only in product status (active versus obsolete) and, in certain cases, RoHS3 compliance certification.

Parameter Comparison

Part Number	Manufacturer	Product Status	Circuit	Frequency Range	Impedance	Isolation (Min)	Insertion Loss (Max)	Supply Voltage	Operating Temperature	Package	RoHS3 Compliant	Inventory (Pcs)
R574492325	Radiall USA, Inc.	Obsolete	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	N/A	833
R573412300	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Not specified	1092
R573412305	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	Not specified	867
R573412320	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	ROHS3 Compliant	919
R573412325	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	ROHS3 Compliant	755
R573412335	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	ROHS3 Compliant	734
R573412380	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	ROHS3 Compliant	796
R573432300	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	ROHS3 Compliant	895
R573432320	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	ROHS3 Compliant	1122
R573442320	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	ROHS3 Compliant	874
R573452300	Radiall USA, Inc.	Active	SP3T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	10.2V ~ 13V	-40°C ~ 85°C	Module	ROHS3 Compliant	954

Engineering Selection Recommendations

All listed substitute parts are direct electrical and mechanical equivalents of the R574492325. Selection among the active alternatives should be based on the following criteria:

Product Status: All substitute parts are classified as active products with current manufacturing support and inventory availability, eliminating the obsolescence risk associated with the R574492325.

RoHS3 Compliance: Eight of the ten substitute parts (R573412320, R573412325, R573412335, R573412380, R573432300, R573432320, R573442320, R573452300) carry explicit RoHS3 compliance certification. For applications subject to RoHS3 regulatory requirements, these parts are preferred. The parts R573412300 and R573412305 do not specify RoHS3 status and should be evaluated against specific compliance requirements.

Inventory Availability: All substitute parts maintain adequate stock levels. R573432320 offers the highest inventory (1122 pcs), followed by R573412300 (1092 pcs), providing extended supply security for high-volume applications.

Packaging: All substitute parts are supplied in bulk packaging, consistent with the module form factor of the original part.

Frequently Asked Questions (FAQ)

Q: Can the R574492325 be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts maintain identical electrical specifications (SP3T topology, 0Hz to 18GHz frequency range, 50-ohm impedance, 60dB isolation, 0.5dB insertion loss, 10.2V to 13V supply voltage, and -40°C to 85°C operating temperature) and identical mechanical packaging (module form factor). Direct substitution is supported without circuit modification.

Q: What is the primary difference between the R574492325 and its substitutes?

A: The R574492325 is classified as obsolete, while all substitute parts are active products with current manufacturing support. Additionally, eight of the ten substitutes carry RoHS3 compliance certification, whereas the original part does not specify this compliance status.

Q: Are there any differences in performance between the substitute parts?

A: No. All substitute parts are parametrically identical across all electrical and mechanical specifications. Performance differences do not exist. Selection should be based on product status, compliance requirements, and inventory availability.

Q: Which substitute part should be selected for RoHS3-compliant applications?

A: For applications requiring RoHS3 compliance, select from the following parts: R573412320, R573412325, R573412335, R573412380, R573432300, R573432320, R573442320, or R573452300. These parts carry explicit RoHS3 compliance certification.

Q: What is the significance of the part number variations among the substitutes?

A: The part number variations reflect different manufacturing configurations or revisions within the Radiall SPnT series. All variations maintain identical electrical and mechanical specifications for the SP3T 18GHz RF switch function.

Q: Is inventory availability a factor in part selection?

A: Inventory availability may be considered for supply chain planning. R573432320 maintains the highest inventory level (1122 pcs), followed by R573412300 (1092 pcs). However, all substitute parts maintain adequate stock for standard procurement cycles.

Q: Can the R574492325 be used in new designs?

A: No. The R574492325 is classified as obsolete and should not be specified for new designs. Active substitute parts from the list should be selected instead to ensure long-term manufacturing support and component availability.

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