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Product Detailed Parameters
- Description：JFET N-CH 40V SOT23-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：40 V
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：8 mA @ 20 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：1 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：16pF @ 20V
- Resistance - RDS(On)：80 Ohms
- Power - Max：350 mW
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The MMBF4093 is an N-channel JFET analog switch manufactured by onsemi, housed in a SOT-23 package. It features a drain-source on resistance of 80 ohms maximum and a zero-gate voltage drain current ranging from 8 to 15 mA. The device supports a gate-source breakdown voltage of -40 V and operates within a junction temperature range of -55°C to 150°C. Total power dissipation is rated at 350 mW.
Feature Summary
- Designed for low-level analog switching applications
- Suitable for sample and hold circuits
- Compatible with chopper stabilized amplifiers
Applications
- Low level analog switching
- Sample and hold circuits
- Chopper stabilized amplifiers
Procurement Notes
Verify the specific part number suffix against official documentation to confirm packaging and tape-and-reel specifications. Confirm RoHS compliance status and ensure the component meets environmental standards required for the intended deployment environment before finalizing procurement orders.
Selection Notes
Select this component when a low on-resistance N-channel JFET switch is required in a compact surface-mount form factor. Consider the specific Idss range and Vgs(off) characteristics to ensure compatibility with the control logic levels and signal integrity requirements of the target circuit design.
Part Context
This device belongs to the MMBF409xL series of N-channel switches. It is derived from Fairchild Semiconductor technology now integrated into the onsemi portfolio. The component utilizes Process 51 manufacturing techniques to achieve consistent electrical performance across production batches.
Replacement Considerations
MMBF4091 and MMBF4092 are direct functional substitutes within the same family, distinguished primarily by their specific Idss and Vgs(off) parameter ranges rather than fundamental operational differences.
FAQ
Are the source and drain terminals interchangeable?
Yes, the datasheet notes that the source and drain terminals are interchangeable for this device.
What is the maximum gate-source voltage rating?
The absolute maximum rating for Gate-Source Voltage (VGS) is -40 V.
How does the MMBF4093 differ from the MMBF4091?
The primary difference lies in the electrical parameters; the MMBF4093 has a lower zero-gate voltage drain current (8-15 mA) compared to the MMBF4091 (30-60 mA).
