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Product Detailed Parameters
- Description：JFET N-Channel -30V Low Noise
- Series：IF170
- Mfr：InterFET
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：-
- Drain to Source Voltage (Vdss)：30 V
- Current - Drain (Idss) @ Vds (Vgs=0)：14 mA @ 10 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：1.2 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：15pF @ 10V
- Resistance - RDS(On)：42 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 IF170CST3TR is an N-Channel JFET from the InterFET IF170A-B-C-D series, utilizing N0132L geometry. It operates with a -30V gate-to-source breakdown voltage and features a typical noise voltage of 1.0 nV/√Hz at 1kHz. The device offers a typical forward transconductance of 6 mS and a maximum of 14 mS. Static characteristics include a drain-to-source saturation current (IDSS) ranging from 10.0 mA to 20.0 mA. Packaged in SOT-23 for surface mount applications, it supports continuous power dissipation up to 350 mW.
Feature Summary
- Utilizes InterFET N0132L geometry for high radiation tolerance
- Provides low noise performance with typical input capacitance of 20 pF
- Features extremely low gate leakage current of 750 fA typical at 10V
- Supports custom test and binning options for specific parameter ranges
Applications
- Sensitive amplifier stages for mid-frequency designs
- Radar, communications, and satellite systems
- Medical imaging systems and ultrasound equipment
- Hydrophone preamplifiers and missile guidance systems
Procurement Notes
Verify the IF170CST3TR part number against official InterFET documentation to confirm availability and specifications. Ensure compliance with RoHS, REACH, and CMR standards required for your application. Check for custom binning options if strict parameter tolerances are necessary. Confirm packaging details such as tape and reel quantities or bulk shipping requirements directly with authorized distributors.
Selection Notes
Select the IF170CST3TR when low noise and high gain are critical for mid-frequency amplifier designs. The SOT-23 package is suitable for surface mount applications requiring compact footprints. Consider the IF170B or IF170D variants if higher IDSS values are needed, or the IF170A variant for lower cutoff voltages. Verify thermal derating requirements for the SOT-23 package under continuous operation conditions.
Part Context
The IF170CST3TR belongs to the IF170A-B-C-D family of N-Channel JFETs designed by InterFET. This series targets sensitive amplifier stages and is compatible with industry standard crosses like 2SK152 and 2N6451. The 'C' designation indicates specific IDSS and VGS(OFF) bins within the series. The 'ST3TR' suffix denotes the SOT-23 surface mount package supplied in tape and reel format.
Replacement Considerations
Official cross-references listed include 2SK152, 2SK170, 2N6451, 2N6452, 2N3972, MMBF4393, NSVJ3557SA3, NSVJ5908DSG5, and NSVJ2394SA3. Verify pinout compatibility, particularly noting that source and drain pins are interchangeable in the SOT-23 package. Ensure electrical parameters such as IDSS and VGS(OFF) fall within acceptable ranges for the target circuit.
