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Product Detailed Parameters
- Description：JFET N-Channel -20V Low Noise
- Series：IF1320
- Mfr：InterFET
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：-
- Drain to Source Voltage (Vdss)：20 V
- Current - Drain (Idss) @ Vds (Vgs=0)：10 mA @ 10 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：1.1 V @ 0.5 nA
- Input Capacitance (Ciss) (Max) @ Vds：15pF @ 10V
- Resistance - RDS(On)：50 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 IF1320ST3TR is an N-channel JFET from the InterFET IF1320 series, packaged in SOT-23 and supplied on a tape and reel. It features low noise with a typical input voltage of 1.0 nV/√Hz at 1 kHz, high gain with a typical forward transconductance of 22 mS, and low gate leakage of 750 fA at 10 V. The device has a gate-to-source breakdown voltage of -20 V, a saturation current (IDSS) ranging from 5 to 20 mA, and a cutoff voltage between -0.35 V and -1.5 V. Maximum power dissipation is 350 mW, with an operating junction temperature range of -55°C to 150°C.
Feature Summary
- Utilizes proprietary InterFET N0132L geometry for industry-leading radiation tolerance and minimal leakage.
- Provides exceptionally low noise performance suitable for sensitive signal processing applications.
- Features a low cutoff voltage ideal for operation in low-voltage supply environments.
- Compliant with RoHS, REACH, and CMR standards.
Applications
- Amplifiers
- Switches
- Voltage regulators
- Oscillators
- Signal mixers
Procurement Notes
Verify that the specific order quantity matches the available tape and reel options, which include 1,000, 3,000, or 9,000 pieces depending on the reel size. Confirm compliance requirements such as RoHS and REACH status prior to procurement. Ensure that the design accounts for the specified thermal derating characteristics when determining maximum power dissipation limits under actual operating conditions.
Selection Notes
Select this component for designs requiring high radiation tolerance and ultra-low noise characteristics. The IF1320 serves as a direct cross-reference for industry standard parts like the 2SK152, 2N6451, and MMBF4393L. Consider custom binning options if tighter parameter control is required for specific production batches.
Part Context
The IF1320ST3TR belongs to the flagship IF1320 series of N-channel JFETs manufactured by InterFET. This series is distinguished by its use of specialized silicon recipes designed to achieve the lowest leakage and highest radiation hardness available in the market. The ST3 suffix indicates the SOT-23 surface mount package, while TR denotes the tape and reel packaging format.
Replacement Considerations
Public datasheets list the following industry standard crosses: 2SK152, 2SK170, 2N6451, 2N6452, 2N3972, 2N4393, NSVJ3557SA3, NSVJ5908DSG5, NSVJ2394SA3, and MMBF4393L. Verify pinout compatibility and electrical parameters against these equivalents before substitution.
FAQ
Are the source and drain pins interchangeable?
Yes, the documentation states that the Source and Drain (S/D) pins are interchangeable in the SOT-23 package.
What is the typical input noise voltage?
The typical equivalent circuit input noise voltage is 1.0 nV/√Hz at 1 kHz.
What is the maximum continuous forward gate current?
The maximum continuous forward gate current is 50 mA.
