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Product Detailed Parameters
- Description：REFLECTIVE SP4T, PIN DIODE SWITC
- Series：-
- Mfr：Mini-Circuits
- Package：Tray
- Product Status：Active
- RF Type：General Purpose
- Topology：Reflective
- Circuit：SP4T
- Frequency Range：10MHz ~ 2.5GHz
- Isolation：35dB
- Insertion Loss：1.5dB
- Test Frequency：2.5GHz
- Impedance：50Ohm
- Voltage - Supply：5V
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Chassis Mount
- Package / Case：Module
- P1dB：19dBm
- IIP3：-
- Features：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The ZSDR-425+ is a reflective SP4T pin diode coaxial switch manufactured by Mini-Circuits. It operates within a frequency range of 10 MHz to 3000 MHz and features a 50 Ohm impedance. Key electrical specifications include a maximum insertion loss of 2.7 dB, an isolation of 22 dB at 2.5 GHz, and a P1dB compression point of 19 dBm tested at 2.5 GHz. The device utilizes TTL driver logic and supports a maximum supply voltage of +6V.
Feature Summary
- Reflective SP4T pin diode architecture for signal routing
- Broadband operation from 10 MHz to 3000 MHz
- Integrated TTL driver interface for control
- Coaxial SMA connector termination
Applications
- RF signal distribution systems
- Test and measurement equipment
- Telecommunications infrastructure
Procurement Notes
Verify the specific suffix (+) indicates RoHS compliance when sourcing. Confirm the SMA connector type matches system requirements. Ensure the TTL drive voltage aligns with control circuitry. Check datasheet revisions for updated electrical limits. Validate package dimensions against PCB layout constraints before ordering.
Selection Notes
Select this component for applications requiring broadband switching up to 3 GHz. The reflective design impacts VSWR characteristics compared to absorptive switches. Verify that the 2.7 dB insertion loss meets system power budget requirements. Ensure the control interface provides stable TTL levels within the specified voltage range.
Part Context
This part belongs to the Mini-Circuits ZSDR series of 50 Ohm reflective coaxial switches. These components are designed for general-purpose RF switching in professional and industrial environments. The series offers various configurations including SP4T and SP6T options with consistent performance across the UHF and SHF bands.
Replacement Considerations
Direct substitutes may include other Mini-Circuits SP4T pin diode switches such as the ZSPD-425+ or ZSMP-425+ depending on connector type requirements. Verify that replacement parts maintain compatible frequency ranges and drive voltages. Cross-reference mechanical dimensions and pinout definitions to ensure board compatibility.
