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Product Detailed Parameters
- Description：JFET P-Channel 25V Low Ciss
- Series：SMP5020
- Mfr：InterFET
- Package：Tape & Reel (TR)
- FET Type：P-Channel
- Voltage - Breakdown (V(BR)GSS)：-
- Drain to Source Voltage (Vdss)：25 V
- Current - Drain (Idss) @ Vds (Vgs=0)：80 µA @ 15 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：1 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：4pF @ 15V
- Resistance - RDS(On)：1.1 kOhms
- Power - Max：350 mW
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The InterFET SMP5020TR is a P-Channel Junction Field-Effect Transistor (JFET) manufactured using the proprietary P0032F geometry. It is supplied in an SOT23 package via 7-inch or 13-inch tape and reel formats, with maximum quantities of 3,000 and 9,000 pieces respectively. The device features a Gate-to-Source Breakdown Voltage of 25V and a Drain-to-Source Saturation Current range of -0.3mA to -1mA for the 2N5020 variant. Forward Transconductance ranges from 1000µS to 3500µS, while Input Capacitance is typically 3.2pF. Continuous power dissipation is rated at 500mW.
Feature Summary
- Utilizes InterFET P0032F geometry for optimized performance characteristics.
- Designed for low-level signal applications with typical noise levels of 10 nV/√Hz.
- Features extremely low gate leakage currents, typically less than 1nA at room temperature.
- RoHS compliant construction available in surface mount SOT23 packaging.
Applications
- Analog switches
- Low-level chopper designs
- Data switches
Procurement Notes
Verify that the specific ordering suffix matches the required reel size, as the SMP5020TR designation covers both 7-inch and 13-inch tape and reel options with different maximum piece counts. Confirm RoHS compliance status if environmental regulations apply to the end application. Ensure the procurement documentation explicitly references the InterFET datasheet IF35082.R00 to validate electrical parameters against the P0032F geometry specifications.
Selection Notes
Select this component when designing circuits requiring high input impedance and low noise performance in a compact surface-mount footprint. The P-Channel configuration is suitable for sourcing current in analog switching topologies. Evaluate the forward transconductance requirements against the specified minimums to ensure adequate gain for the intended signal processing stage. Consider the thermal derating characteristics if operating near the maximum junction temperature limits.
Part Context
The SMP5020TR belongs to the 2N5020 family of P-Channel JFETs produced by InterFET. This series includes through-hole variants such as the TO-18 and TO-92 packages, as well as bare die options. The SMP5020TR specifically denotes the surface-mount version packaged in SOT23, providing a compact alternative to hermetically sealed military-grade packages while maintaining similar electrical profiles for commercial data switch applications.
Replacement Considerations
Direct pin-compatible replacements within the same InterFET family include the SMP5021TR, which offers higher minimum transconductance and saturation current values. Cross-manufacturer substitutions require careful verification of the P-Channel polarity, breakdown voltage ratings, and physical SOT23 footprint dimensions to ensure mechanical and electrical compatibility.
