R574313415 RF Switch IC SP4T 3GHz Equivalent & Substitute Parts

Part Overview

The R574313415 is a general-purpose RF switch IC with SP4T (single-pole four-throw) topology manufactured by Radiall USA, Inc. This component operates across the 0Hz to 3GHz frequency range with 50-ohm impedance and is designed for RF signal routing applications. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and new designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	R574313415
Manufacturer	Radiall USA, Inc.
Circuit Configuration	SP4T
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 R574313415 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Circuit topology (SP4T configuration)
Frequency range (0Hz ~ 3GHz)
Impedance (50Ohm)
Isolation performance (80dB minimum)
Insertion loss (0.2dB maximum)
Supply voltage range (24V ~ 30V)
Operating temperature range (-40°C ~ 85°C)
Package type (Module)

Substitution Categories:

Direct Equivalents (SP4T topology): Parts maintaining identical SP4T circuit configuration with all electrical parameters matching the original specification. These parts are fully interchangeable for applications requiring four-throw switching capability.

Functional Alternatives (SP3T topology): Parts with SP3T (single-pole three-throw) circuit configuration. These components share identical frequency range, impedance, isolation, insertion loss, supply voltage, and temperature specifications but provide three-throw instead of four-throw switching. Selection of SP3T alternatives requires confirmation that the application requires only three switching positions.

All substitute parts listed are manufactured by Radiall USA, Inc., and maintain active product status, ensuring ongoing availability and support.

Parameter Comparison

Part Number	Circuit	Frequency Range	Impedance	Isolation (min)	Insertion Loss (max)	Supply Voltage	Operating Temp	Status	Inventory
R574313415	SP4T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Obsolete	1071 Pcs
R573503400	SP4T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1146 Pcs
R573523310	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1090 Pcs
R573523410	SP4T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	856 Pcs
R573533400	SP4T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1072 Pcs
R574003300	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1098 Pcs
R574003335	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	902 Pcs
R574003345	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	874 Pcs
R574003400	SP4T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	983 Pcs
R574023405	SP4T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	885 Pcs
R574093305	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1083 Pcs

Engineering Selection Recommendations

For Direct Replacement (SP4T Topology):

The following active parts provide complete electrical and mechanical equivalence to the obsolete R574313415:

R573503400: Active status with 1146 units in inventory. Maintains all electrical specifications and module packaging identical to the original part.
R573523410: Active status with 856 units in inventory. Full parametric equivalence with SP4T topology.
R573533400: Active status with 1072 units in inventory. Complete specification match for SP4T applications.
R574003400: Active status with 983 units in inventory. Identical electrical and mechanical characteristics.
R574023405: Active status with 885 units in inventory. Full equivalence for SP4T switching requirements.

For Functional Alternatives (SP3T Topology):

The following active parts provide equivalent electrical performance with three-throw instead of four-throw switching:

R573523310: Active status with 1090 units in inventory.
R574003300: Active status with 1098 units in inventory.
R574003335: Active status with 902 units in inventory. RoHS3 compliant.
R574003345: Active status with 874 units in inventory. RoHS3 compliant.
R574093305: Active status with 1083 units in inventory. RoHS3 compliant.

SP3T alternatives are suitable only for applications where the circuit design requires a maximum of three switching positions. All substitute parts maintain identical frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature specifications.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between the R574313415 and its SP4T substitutes?

A: The R574313415 is obsolete. The SP4T substitute parts (R573503400, R573523410, R573533400, R574003400, R574023405) are active equivalents with identical electrical specifications, circuit topology, and module packaging. The only difference is product status and availability.

Q: Can I use an SP3T part as a substitute for the SP4T R574313415?

A: SP3T parts can be used only if your application requires a maximum of three switching positions instead of four. All SP3T alternatives maintain identical frequency range (0Hz ~ 3GHz), impedance (50Ohm), isolation (80dB minimum), insertion loss (0.2dB maximum), supply voltage (24V ~ 30V), and operating temperature range (-40°C ~ 85°C). Circuit topology differences must be evaluated against specific application requirements.

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

A: Yes. All substitute parts listed maintain the module package type identical to the R574313415. No package conversion or redesign is required for direct substitution.

Q: What is the frequency range for all these RF switch ICs?

A: All parts operate across 0Hz to 3GHz with 50-ohm impedance and are tested at 3GHz. This frequency range applies to both SP4T and SP3T configurations.

Q: What supply voltage is required for these RF switch ICs?

A: All parts require a supply voltage range of 24V to 30V. Ensure your power supply design accommodates this voltage specification.

Q: What is the operating temperature range for these components?

A: All parts operate across -40°C to 85°C. This temperature range applies to both the obsolete R574313415 and all active substitute parts.

Q: Are any of the substitute parts RoHS3 compliant?

A: Yes. The following SP3T parts are RoHS3 compliant: R574003345 and R574093305. SP4T parts do not list RoHS3 compliance in the provided specifications.

Q: Which substitute part has the highest inventory availability?

A: R573503400 has the highest inventory with 1146 units in stock, followed by R573533400 with 1072 units and R574003300 with 1098 units.

Q: What is the isolation performance of these RF switch ICs?

A: All parts provide a minimum isolation of 80dB at the test frequency of 3GHz, ensuring effective signal separation between switch positions.

Q: What is the maximum insertion loss specification?

A: All parts maintain a maximum insertion loss of 0.2dB, ensuring minimal signal attenuation through the switch at 3GHz test frequency.

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