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R574412405 RF Switch IC SP4T 18GHz Equivalent & Substitute Parts
Part Overview
The R574412405 is a general-purpose RF switch IC with SP4T (Single Pole 4 Throw) topology operating across 0Hz to 18GHz frequency range. Manufactured by Radiall USA, Inc., this component features 50Ohm impedance, 60dB minimum isolation, and 0.5dB maximum insertion loss at 18GHz test frequency. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement needs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | R574412405 |
| Manufacturer | Radiall USA, Inc. |
| Circuit Configuration | SP4T |
| 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 Type | Module |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the R574412405 is determined by strict adherence to the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Circuit configuration (SP4T topology required for direct replacement)
- Frequency range capability (0Hz ~ 18GHz minimum)
- Impedance matching (50Ohm)
- Isolation performance (60dB minimum)
- Insertion loss specification (0.5dB maximum)
- Supply voltage compatibility (10.2V ~ 13V)
- Operating temperature range (-40°C ~ 85°C)
- Package type (Module)
Substitution Categories:
Category 1: Direct SP4T Equivalents (Active Status) Parts R573412400, R573412405, and R573412420 maintain identical circuit topology (SP4T) with all electrical parameters matching the obsolete R574412405. These components are classified as active products and provide direct functional replacement.
Category 2: SP3T Alternatives (Active Status) Parts R573412300, R573412305, R573412320, R573412325, R573412335, and R573412380 feature SP3T topology with identical frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature specifications. These components represent functional alternatives where SP3T configuration is acceptable for the application.
All substitute parts are manufactured by Radiall USA, Inc., ensuring consistency in design and manufacturing standards.
Parameter Comparison
| Part Number | Circuit | Frequency Range | Impedance | Isolation (Min) | Insertion Loss (Max) | Supply Voltage | Operating Temp | Product Status | Packaging |
|---|---|---|---|---|---|---|---|---|---|
| R574412405 | SP4T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Obsolete | Module |
| R573412400 | SP4T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Active | Bulk |
| R573412405 | SP4T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Active | Bulk |
| R573412420 | SP4T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Active | Bulk |
| R573412300 | SP3T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Active | Bulk |
| R573412305 | SP3T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Active | Bulk |
| R573412320 | SP3T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Active | Bulk |
| R573412325 | SP3T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Active | Bulk |
| R573412335 | SP3T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Active | Bulk |
| R573412380 | SP3T | 0Hz ~ 18GHz | 50Ohm | 60dB | 0.5dB | 10.2V ~ 13V | -40°C ~ 85°C | Active | Bulk |
Engineering Selection Recommendations
Direct Replacement (SP4T Configuration):
For applications requiring identical SP4T topology, select from active alternatives R573412400, R573412405, or R573412420. All three parts maintain complete electrical and mechanical compatibility with the obsolete R574412405. R573412420 offers the highest inventory availability at 1,186 pieces. Parts R573412420 and R573412425 carry ROHS3 compliance certification, providing environmental regulatory alignment for new designs.
Alternative Selection (SP3T Configuration):
When circuit topology flexibility permits SP3T configuration, six active alternatives are available: R573412300, R573412305, R573412320, R573412325, R573412335, and R573412380. All SP3T variants maintain identical electrical performance across frequency range, impedance, isolation, insertion loss, supply voltage, and operating temperature specifications. Parts R573412320, R573412325, R573412335, and R573412380 include ROHS3 compliance certification. Inventory levels range from 734 to 1,092 pieces across the SP3T options.
Product Status Consideration:
All substitute parts carry active product status, ensuring ongoing manufacturing support, availability, and technical documentation access. The obsolete status of R574412405 necessitates transition to one of these active alternatives for new procurement and long-term supply chain continuity.
Frequently Asked Questions (FAQ)
Q: Can R573412405 (SP4T, Active) directly replace R574412405 (SP4T, Obsolete)?
A: Yes. R573412405 maintains identical circuit topology (SP4T), frequency range (0Hz ~ 18GHz), impedance (50Ohm), isolation (60dB minimum), insertion loss (0.5dB maximum), supply voltage (10.2V ~ 13V), and operating temperature range (-40°C ~ 85°C). The primary difference is product status (active versus obsolete) and packaging format (bulk versus original).
Q: What is the functional difference between SP4T and SP3T configurations?
A: SP4T (Single Pole 4 Throw) provides four output throw positions, while SP3T (Single Pole 3 Throw) provides three output throw positions. SP3T alternatives are suitable only when application requirements do not exceed three throw positions.
Q: Are SP3T parts suitable substitutes for SP4T applications?
A: SP3T parts are functional alternatives only when the application circuit design accommodates three throw positions instead of four. Direct SP4T replacement is required for designs utilizing all four throw positions.
Q: What packaging differences exist between the obsolete part and active substitutes?
A: The obsolete R574412405 was supplied in original packaging format. Active substitute parts are supplied in bulk packaging. Both maintain identical module package type and electrical performance.
Q: Do any substitute parts include environmental compliance certifications?
A: Yes. Parts R573412320, R573412325, R573412335, R573412380 (SP3T variants) and R573412420, R573412425 (SP4T variants) carry ROHS3 compliance certification. Parts without specified ROHS status do not include this certification.
Q: Which substitute part offers the highest inventory availability?
A: R573412420 (SP4T, Active, ROHS3 Compliant) provides the highest inventory level at 1,186 pieces.
Q: Are all substitute parts manufactured by the same manufacturer as the obsolete part?
A: Yes. All substitute parts are manufactured by Radiall USA, Inc., maintaining design and manufacturing consistency.
Q: What supply voltage range applies to all substitute parts?
A: All substitute parts operate within the 10.2V to 13V supply voltage range, matching the obsolete R574412405 specification.
Q: Do substitute parts maintain the same operating temperature range?
A: Yes. All substitute parts operate across the -40°C to 85°C temperature range, identical to the obsolete R574412405.
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