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Product Detailed Parameters
- Description：JFET N-Channel -25V Low Ciss
- Series：SMP5484
- Mfr：InterFET
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：-
- Drain to Source Voltage (Vdss)：25 V
- Current - Drain (Idss) @ Vds (Vgs=0)：2.5 mA @ 15 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：1.5 V @ 10 nA
- Input Capacitance (Ciss) (Max) @ Vds：3.5pF @ 15V
- Resistance - RDS(On)：320 Ohms
- 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 SMP5484TR is an N-channel Junction Field-Effect Transistor (JFET) utilizing the InterFET N0026S geometry. It is housed in a surface-mount SOT23 package and supplied on a 7-inch or 13-inch tape and reel with minimum quantities of 1,000 pieces. The device is engineered for low noise and low leakage performance, featuring a typical input capacitance of 4.3pF and gate leakage below 10pA at room temperature. Key electrical parameters include a Gate-to-Source Breakdown Voltage of -25V, a Drain-to-Source Saturation Current range of 1mA to 5mA, and a Gate-to-Source Cutoff Voltage between -0.3V and -3V.
Feature Summary
- Utilizes InterFET N0026S geometry for optimized RF performance
- Provides low noise characteristics with typical values of 4 nV/√Hz
- Ensures minimal signal loss through low input capacitance
- Maintains extremely low gate leakage currents
Applications
- VHF amplifiers
- UHF amplifiers
- Low noise amplifier designs
Procurement Notes
Verify that the specific ordering suffix TR corresponds to the tape and reel packaging format required for automated assembly processes. Confirm the minimum order quantity aligns with the manufacturer's standard reel sizes. Ensure the component meets RoHS compliance standards if mandated by the end application regulations. Validate that the SOT23 footprint matches the intended PCB layout design.
Selection Notes
Select this component when designing circuits requiring high-frequency operation with minimal noise interference. The low input capacitance makes it suitable for applications where signal integrity is critical at VHF and UHF frequencies. Consider the specific IDSS and VGS(off) ranges to ensure biasing compatibility within the target circuit topology.
Part Context
This part belongs to the 2N5484-5-6 family of N-channel JFETs manufactured by InterFET. While the base 2N5484 is available in through-hole TO-92 packages, the SMP5484 variant specifically denotes the surface-mount SOT23 configuration. The TR suffix indicates the reel-based packaging method used for high-volume manufacturing integration.
Replacement Considerations
Direct substitutes within the same family include the SMP5485TR and SMP5486TR. These alternatives share identical packaging and general characteristics but differ in saturation current and cutoff voltage specifications. Verify electrical parameter compatibility before substitution.
FAQ
What is the maximum continuous forward gate current?
The absolute maximum rating for continuous forward gate current is -25 mA.
Does the SMP5484TR support wave soldering?
Yes, the suggested land pattern data indicates that a more robust pattern may be desired for wave soldering applications.
What is the operating junction temperature range?
The device supports an operating junction temperature range from -55°C to 125°C.
