R574333320 RF Switch IC SP3T 3GHz Equivalent & Substitute Parts

Part Overview

The R574333320 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 3GHz with 50-ohm impedance and is designed for RF switching applications requiring high isolation and low insertion loss characteristics.

The R574333320 is classified as obsolete. Substitute parts are necessary to maintain design continuity and ensure availability for new production builds and field replacements. Active equivalent models provide identical electrical and mechanical specifications while offering current manufacturing support and compliance certifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	R574333320
Manufacturer	Radiall USA, Inc.
Circuit Configuration	SP3T
Frequency Range	0Hz ~ 3GHz
Impedance	50Ohm
Isolation (minimum)	80dB
Insertion Loss (maximum)	0.2dB
Test Frequency	3GHz
Supply Voltage	24V ~ 30V
Operating Temperature Range	-40°C ~ 85°C
Package Type	Module
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the R574333320 is based on strict electrical and mechanical parameter matching within the SPnT RF switch IC category. All substitute parts maintain identical specifications across the following critical parameters:

Substitution Criteria:

Circuit topology: SP3T configuration
Frequency range: 0Hz ~ 3GHz operation
Impedance: 50-ohm characteristic impedance
Isolation performance: 80dB minimum at test frequency
Insertion loss: 0.2dB maximum at test frequency
Supply voltage: 24V ~ 30V operating range
Temperature range: -40°C ~ 85°C
Package form factor: Module

All substitute parts listed are manufactured by Radiall USA, Inc., ensuring design compatibility and performance equivalence. Substitute parts are classified as active products with current manufacturing status, providing supply chain continuity and compliance with current regulatory standards.

Parameter Comparison

Part Number	Manufacturer	Circuit	Frequency Range	Impedance	Isolation (min)	Insertion Loss (max)	Supply Voltage	Operating Temperature	Product Status	Inventory (Pcs)
R574333320	Radiall USA, Inc.	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Obsolete	743
R573523310	Radiall USA, Inc.	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1090
R574003300	Radiall USA, Inc.	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1098
R574003335	Radiall USA, Inc.	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	902
R574003345	Radiall USA, Inc.	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	874
R574093305	Radiall USA, Inc.	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1083
R574093325	Radiall USA, Inc.	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	708

Engineering Selection Recommendations

All substitute parts provide direct functional equivalence to the R574333320 across all specified electrical and mechanical parameters. Selection among substitute options should be based on the following factors:

Product Status: All substitute parts are classified as active products with current manufacturing support. The R574333320 is obsolete and should be replaced with an active equivalent for new designs and production applications.

Compliance and Certifications: Substitute parts R574003345, R574093305, and R574093325 carry RoHS3 compliance certification. Parts R573523310, R574003300, and R574003335 do not list RoHS compliance status in provided specifications. For applications requiring RoHS3 compliance, select from R574003345, R574093305, or R574093325.

Supply Availability: All substitute parts maintain adequate inventory levels. R574003300 offers the highest inventory position at 1098 pieces, followed by R573523310 at 1090 pieces and R574093305 at 1083 pieces.

Packaging: All substitute parts are supplied in bulk packaging format, consistent with production requirements.

Frequently Asked Questions (FAQ)

Q: Can the R574333320 be directly replaced with any of the listed substitute parts?

A: Yes. All substitute parts maintain identical electrical specifications including frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature range. Direct substitution is supported at the functional level.

Q: What is the primary reason for substituting the R574333320?

A: The R574333320 is classified as obsolete. Substitute parts are active products with current manufacturing support, ensuring long-term supply chain availability and compliance with current regulatory requirements.

Q: Are there differences in RoHS compliance among the substitute parts?

A: Yes. Parts R574003345, R574093305, and R574093325 are certified as RoHS3 compliant. Parts R573523310, R574003300, and R574003335 do not list RoHS compliance status. For applications requiring RoHS3 certification, select from the compliant options.

Q: Do all substitute parts use the same module package format?

A: Yes. All substitute parts are packaged as modules, maintaining mechanical compatibility with the original R574333320 design.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by SP3T circuit topology, 0Hz to 3GHz frequency range, 50-ohm impedance, 80dB minimum isolation, 0.2dB maximum insertion loss, 24V to 30V supply voltage, and -40°C to 85°C operating temperature range.

Q: Which substitute part offers the best inventory availability?

A: R574003300 provides the highest inventory level at 1098 pieces, followed by R573523310 at 1090 pieces.

Q: Are all substitute parts manufactured by the same company as the original part?

A: Yes. All substitute parts are manufactured by Radiall USA, Inc., the same manufacturer as the R574333320.

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