R574313535 RF Switch IC SP5T 3GHz Equivalent & Substitute Parts

Part Overview

The R574313535 is a general-purpose RF switch integrated circuit with SP5T (single-pole five-throw) topology manufactured by Radiall USA, Inc. This component operates across the 0Hz to 3GHz frequency range with 50-ohm impedance and is housed in a module package. The part is currently classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	R574313535
Manufacturer	Radiall USA, Inc.
Circuit Type	SP5T
Frequency Range	0Hz ~ 3GHz
Impedance	50Ohm
Isolation	80dB (min)
Insertion Loss	0.2dB (max)
Test Frequency	3GHz
Voltage Supply	24V ~ 30V
Operating Temperature	-40°C ~ 85°C
Package / Case	Module
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the R574313535 is determined by the following critical parameters that must remain constant or compatible:

Primary Substitution Criteria:

Frequency Range: 0Hz ~ 3GHz (all substitutes must support this range)
Impedance: 50Ohm (electrical interface requirement)
Isolation: 80dB (min) (signal separation performance)
Insertion Loss: 0.2dB (max) (signal attenuation limit)
Voltage Supply: 24V ~ 30V (power supply compatibility)
Operating Temperature: -40°C ~ 85°C (thermal operating envelope)
Package / Case: Module (mechanical form factor)
Manufacturer: Radiall USA, Inc. (source consistency)

Circuit Topology Consideration: The R574313535 employs SP5T topology. Substitute parts may utilize SP3T or SP4T topologies, which represent reduced-throw configurations. These alternatives are electrically compatible when the application requires fewer switch positions than the original five-throw design.

All identified substitutes are manufactured by Radiall USA, Inc., maintain identical electrical performance specifications, and are classified as active products with current manufacturing status.

Parameter Comparison

Part Number	Circuit Type	Frequency Range	Impedance	Isolation (min)	Insertion Loss (max)	Voltage Supply	Operating Temperature	Product Status	Inventory
R574313535	SP5T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Obsolete	666 Pcs
R574023505	SP5T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1095 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
R573503400	SP4T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1146 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
R573523310	SP3T	0Hz ~ 3GHz	50Ohm	80dB	0.2dB	24V ~ 30V	-40°C ~ 85°C	Active	1090 Pcs

Engineering Selection Recommendations

Primary Substitute (Identical Topology): R574023505 is the direct equivalent to R574313535, maintaining SP5T circuit topology with identical electrical specifications. This part is classified as active with current manufacturing support and represents the optimal choice for direct replacement applications.

Secondary Substitutes (Reduced Topology): SP4T alternatives (R574003400, R574023405, R573503400, R573523410, R573533400) and SP3T alternatives (R574003300, R574003335, R574003345, R573523310) are electrically compatible substitutes when application requirements permit operation with fewer switch positions. All secondary substitutes maintain identical frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature specifications.

Product Status Consideration: All identified substitute parts are classified as active products with ongoing manufacturing availability. The obsolete status of R574313535 necessitates transition to one of these active alternatives for new procurement and long-term system support.

Compliance and Certification: R574003345 is documented as ROHS3 compliant. All other parts maintain equivalent environmental and regulatory compliance status consistent with Radiall USA, Inc. manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can R574023505 directly replace R574313535 in existing designs? A: Yes. R574023505 maintains identical SP5T topology and all electrical specifications including frequency range (0Hz ~ 3GHz), impedance (50Ohm), isolation (80dB min), insertion loss (0.2dB max), supply voltage (24V ~ 30V), and operating temperature range (-40°C ~ 85°C). Both components are housed in module packages.

Q: What is the difference between SP5T, SP4T, and SP3T topologies? A: SP5T provides five switch positions, SP4T provides four positions, and SP3T provides three positions. The "S" denotes single-pole configuration. Selection depends on the number of input/output paths required by the application circuit.

Q: Can SP4T or SP3T parts substitute for the SP5T R574313535? A: SP4T and SP3T parts are electrically compatible when the application requires fewer than five switch positions. All electrical performance parameters remain identical. Application circuit design must accommodate the reduced number of available switch positions.

Q: Are all substitute parts available in the same module package? A: Yes. All identified substitutes maintain module package / case form factor consistent with R574313535.

Q: What inventory levels are available for substitute parts? A: R574023505 (SP5T direct equivalent) has 1095 pieces in stock. SP4T alternatives range from 856 to 1146 pieces. SP3T alternatives range from 874 to 1098 pieces.

Q: Does the operating temperature range differ between the main part and substitutes? A: No. All parts operate across the identical -40°C ~ 85°C temperature range.

Q: Are there any RoHS compliance differences between substitute parts? A: R574003345 is documented as ROHS3 compliant. All parts maintain equivalent environmental compliance consistent with current Radiall USA, Inc. manufacturing standards.

Q: What is the supply voltage requirement for these RF switch ICs? A: All parts require 24V to 30V supply voltage. This specification is identical across the main part and all substitutes.

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