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SMP1325-085LF is listed in the RF Diode range at ChipApex. The manufacturer field lists Skyworks Solutions Inc.. Its product description is RF DIODE PIN 200V 4.5W 3QFN. Review the specifications below when checking this part for your BOM.
RF Diode specifications for SMP1325-085LF
- Description：RF DIODE PIN 200V 4.5W 3QFN
- Series：-
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Diode Type：PIN - Single
- Voltage - Peak Reverse (Max)：200V
- Current - Max：200 mA
- Capacitance @ Vr, F：0.65pF @ 20V, 1MHz
- Resistance @ If, F：500mOhm @ 100mA, 100MHz
- Power Dissipation (Max)：4.5 W
- Operating Temperature：-40°C ~ 150°C (TA)
- Package / Case：2-VDFN Exposed Pad
- Supplier Device Package：3-QFN (2x2)
- Grade：-
- Qualification：-
RF Diode datasheet and documents for SMP1325-085LF
RF Diode Overview
The SMP1325-085LF is a surface-mount silicon PIN diode designed for high-power, high-volume switch and attenuator applications from 10 MHz to beyond 6 GHz. It features a maximum resistance of 0.5 Ω at 100 mA and a maximum capacitance of 0.65 pF at 20 V. The device has a 4.5 W dissipation power rating, capable of handling over 100 W continuous wave (CW) and 1000 W peak in a shunt-connected transmit/receive switch. It operates within an ambient temperature range of -40 °C to +150 °C.
RF Diode Feature Summary
- Low thermal resistance of 13 °C/W suitable for 100 W continuous wave T/R switches
- QFN package with exposed paddle minimizes parasitic inductance and junction temperature
- Low distortion performance optimized for large signal switching
RF Diode Applications
- Low-loss, high-power switches
- Low-distortion attenuators
- Shunt-connected transmit/receive (T/R) switches
RF Diode Procurement Notes
Verify the specific ordering suffix against official Skyworks documentation before procurement. Confirm that the component meets RoHS3 compliance standards and check the latest Moisture Sensitivity Level (MSL) ratings. Ensure proper ESD precautions are implemented during handling and storage to prevent damage to the semiconductor die.
RF Diode Selection Notes
Select this component when low parasitic inductance and high power handling are required in RF circuits. The QFN package design reduces the effects of bond wire inductance compared to other surface-mount packages. Verify that the application frequency range falls between 10 MHz and beyond 6 GHz for optimal performance characteristics.
RF Diode Part Context
This part belongs to the Skyworks Solutions Inc. SMP1325 series of surface-mountable PIN diodes. It is specifically engineered as a shunt-connected device for high-power applications. The product utilizes a 3-pin, 2 x 2 mm QFN package to achieve low thermal resistance and minimal electrical parasitics.
RF Diode Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation.
RF Diode FAQ
What is the typical capacitance value of the SMP1325-085LF?
The typical capacitance is 0.56 pF at 20 V reverse bias.
How does the package design affect the device's performance?
The QFN package produces lower thermal resistance and reduces the effects of parasitic inductance from anode bond wires compared to other surface-mount packages.
What is the recommended PCB layout practice for this component?
It is recommended to place several vias under the entire footprint of the exposed paddle (Pin 2) to minimize both electrical inductance to system ground and thermal resistance to the heat sink.
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