R574413625 RF Switch IC SP6T 18GHz Equivalent & Substitute Parts

Part Overview

The R574413625 is a general-purpose RF switch IC with SP6T (single-pole, six-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 R574413625 is classified as obsolete. Equivalent and substitute parts are available from Radiall USA, Inc. in active product status, providing direct functional alternatives with maintained or enhanced electrical performance and improved availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	R574413625
Manufacturer	Radiall USA, Inc.
Circuit Configuration	SP6T
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
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the R574413625 are classified into two categories based on circuit configuration and electrical parameter equivalence:

Direct Equivalents (SP6T Configuration): Parts maintaining identical SP6T topology with matching electrical specifications across frequency range, impedance, isolation, insertion loss, and operating parameters. These parts are fully interchangeable from a functional standpoint.

Parametric Equivalents (SP5T Configuration): Parts with SP5T topology (single-pole, five-throw) that maintain all critical electrical parameters including frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature. These parts provide equivalent RF performance with reduced throw count.

Key Parameters Determining Substitution:

Circuit configuration (SP6T or SP5T)
Frequency range (0Hz ~ 18GHz)
Impedance (50Ohm)
Isolation minimum (60dB)
Insertion loss maximum (0.5dB)
Supply voltage (24V ~ 30V)
Operating temperature range (-40°C ~ 85°C)
Package type (Module)

Parameter Comparison

Part Number	Manufacturer	Circuit	Frequency Range	Impedance	Isolation (Min)	Insertion Loss (Max)	Supply Voltage	Operating Temp	Product Status	Inventory
R574413625	Radiall USA, Inc.	SP6T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Obsolete	657 Pcs
R574G13625	Radiall USA, Inc.	SP6T	DC ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	877 Pcs
R573403510	Radiall USA, Inc.	SP5T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	716 Pcs
R573403515	Radiall USA, Inc.	SP5T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	953 Pcs
R573403520	Radiall USA, Inc.	SP5T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	955 Pcs
R573403540	Radiall USA, Inc.	SP5T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	722 Pcs
R573403600	Radiall USA, Inc.	SP6T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	1004 Pcs
R573403605	Radiall USA, Inc.	SP6T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	871 Pcs
R573403610	Radiall USA, Inc.	SP6T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	681 Pcs
R573403610LP	Radiall USA, Inc.	SP6T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	677 Pcs
R573403615	Radiall USA, Inc.	SP6T	0Hz ~ 18GHz	50Ohm	60dB	0.5dB	24V ~ 30V	-40°C ~ 85°C	Active	980 Pcs

Engineering Selection Recommendations

Primary Recommendation: R574G13625 is the manufacturer-recommended direct equivalent. This part maintains SP6T topology with identical electrical specifications and operates across an extended frequency range beginning at DC rather than 0Hz. The part is in active product status with improved availability (877 units in stock) and carries MSL rating of 1 (Unlimited), indicating superior moisture handling characteristics compared to the obsolete R574413625.

Secondary Recommendations for SP6T Applications: R573403600, R573403605, R573403610, R573403610LP, and R573403615 are all active SP6T RF switch ICs with identical electrical parameters to the original part. These alternatives provide equivalent circuit functionality with enhanced product status and availability. R573403600 offers the highest inventory level at 1004 units. R573403610 and R573403615 carry ROHS3 compliance certification.

Alternative for Reduced Throw Count Applications: R573403510, R573403515, R573403520, and R573403540 are SP5T configurations suitable for applications requiring five throw positions instead of six. These parts maintain all critical RF performance parameters and are available in active status. R573403520 and R573403540 carry ROHS3 compliance certification.

Frequently Asked Questions (FAQ)

Q: Can R574G13625 directly replace R574413625 in existing designs?

A: Yes. R574G13625 maintains SP6T topology with identical electrical specifications including 50-ohm impedance, 60dB minimum isolation, 0.5dB maximum insertion loss, 24V-30V supply voltage, and -40°C to 85°C operating temperature range. The extended frequency range beginning at DC provides additional capability. Module package type is consistent.

Q: What is the difference between SP6T and SP5T configurations?

A: SP6T (single-pole, six-throw) provides six selectable output paths from a single input. SP5T (single-pole, five-throw) provides five selectable output paths. Both configurations maintain identical RF performance parameters. Selection depends on application requirements for the number of available throw positions.

Q: Are the SP5T alternatives suitable for applications originally designed for SP6T?

A: SP5T parts are suitable only if the application requires five or fewer throw positions. All electrical parameters including frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature are equivalent. Circuit topology differences must be evaluated against specific application requirements.

Q: What does ROHS3 compliance indicate?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements. Parts R573403520, R573403540, R573403600, and R573403610 carry this certification. This is a regulatory compliance designation and does not affect RF performance characteristics.

Q: How does MSL rating affect part selection?

A: MSL (Moisture Sensitivity Level) rating indicates moisture handling requirements during storage and assembly. R574G13625 carries MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Other parts carry "Not Applicable" designation. MSL rating affects storage and handling procedures but not electrical performance.

Q: What inventory considerations apply to these substitutes?

A: All substitute parts are available in active product status with inventory levels ranging from 677 to 1004 units. R573403600 offers the highest availability at 1004 units. Inventory levels support immediate procurement for production applications.

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

A: Yes. All substitute parts are supplied in Module package configuration, consistent with the original R574413625. R574G13625 additionally specifies SMA Connectors as part of the module package.

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