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SMP1321-003LF is listed in the RF Diode range at ChipApex. The manufacturer field lists Skyworks Solutions Inc.. Its product description is RF DIODE PIN 100V 250MW SOT-23-3. Review the specifications below when checking this part for your BOM.
RF Diode specifications for SMP1321-003LF
- Description：RF DIODE PIN 100V 250MW SOT-23-3
- Series：-
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR)
- Diode Type：PIN - 1 Pair Common Anode
- Voltage - Peak Reverse (Max)：100V
- Current - Max：-
- Capacitance @ Vr, F：0.25pF @ 30V, 1MHz
- Resistance @ If, F：2Ohm @ 10mA, 100MHz
- Power Dissipation (Max)：250 mW
- Operating Temperature：-65°C ~ 150°C (TA)
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
RF Diode datasheet and documents for SMP1321-003LF
RF Diode Overview
The SMP1321-003LF is a single PIN diode from the Skyworks SMP1321 series, packaged in an SC-79 plastic surface-mount format. It operates across a frequency range of 10 MHz to over 10 GHz with a maximum reverse voltage of 100 V and power dissipation of 400 mW. Key electrical specifications include a typical capacitance of 0.18 pF (maximum 0.25 pF at 30 V), a typical series resistance of 1.05 Ω at 10 mA (maximum 2.0 Ω), and a forward voltage of 0.85 V at 10 mA. The device supports an operating temperature range from -65 °C to +150 °C.
RF Diode Feature Summary
- Designed for high-performance wireless switch applications
- Low capacitance combined with low resistance for high isolation
- Suitable for battery-operated circuits
RF Diode Applications
- High-performance wireless switches
- Series-connected PIN diode switches
- Battery operated circuits
RF Diode Procurement Notes
Verify the specific package marking RM against official datasheet documentation to confirm the component identity. Ensure that handling procedures strictly follow Moisture Sensitivity Level 1 guidelines to prevent damage during solder assembly. Confirm RoHS compliance status through manufacturer records before final procurement integration.
RF Diode Selection Notes
Select this component when a low-inductance single PIN diode configuration is required for high-frequency switching. The SC-79 package offers a small footprint suitable for space-constrained designs. Evaluate the 0.25 pF maximum capacitance and 2.0 Ω maximum resistance limits to ensure they meet the specific isolation and insertion loss requirements of the target circuit design.
RF Diode Part Context
This part belongs to the SMP1321 series of low capacitance, plastic packaged PIN diodes manufactured by Skyworks Solutions. The series includes various configurations such as pairs and different packages like SOT-23 and SOD-323. The SMP1321-003LF specifically denotes the single diode variant housed in the SC-79 package.
RF Diode Replacement Considerations
Direct replacements within the same series include SMP1321-005LF (SOT-23 pair) or SMP1321-011LF (SOD-323 single). Verify pinout compatibility and package dimensions when substituting with other series members.
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