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Product Detailed Parameters
- Description：JFET N-CH 30V SOT23-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：30 V
- Drain to Source Voltage (Vdss)：30 V
- Current - Drain (Idss) @ Vds (Vgs=0)：30 mA @ 15 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：3 V @ 10 nA
- Input Capacitance (Ciss) (Max) @ Vds：14pF @ 15V (VGS)
- Resistance - RDS(On)：100 Ohms
- Power - Max：225 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 (TO-236)
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The SMMBF4393LT1G is an N-channel JFET switching transistor manufactured by onsemi. It features a maximum Drain-Source Voltage (VDS) of 30 Vdc and a Gate-Source Breakdown Voltage (V(BR)GSS) of 30 Vdc. The device has a Zero-Gate-Voltage Drain Current (IDSS) range of 5.0 to 30 mAdc at VDS = 15 Vdc. Static Drain-Source On-Resistance (rDS(on)) is specified at 100 Ohms for ID = 1.0 mAdc. Total Device Dissipation is 225 mW, with a Junction Temperature Range of -55 to +150 °C.
Feature Summary
- Designed specifically for analog switch and chopper applications
- Automotive qualified with AEC-Q101 standards and PPAP capability
- Pb-Free, Halogen Free/BFR Free, and RoHS compliant construction
Applications
- Analog switching circuits
- Chopper amplifier designs
- Automotive electronic systems requiring unique site control
Procurement Notes
Verify the specific ordering suffix 'S' indicates automotive qualification and unique site requirements. Confirm package type is SOT-23 (TO-236). Ensure compliance with Pb-Free and RoHS standards matches project specifications. Check shipping configuration for tape and reel quantities.
Selection Notes
Select this component when low leakage current and high breakdown voltage are required in a small surface-mount package. The S-prefix variant is necessary for automotive supply chain requirements. Compare IDSS ranges against circuit biasing needs to ensure proper turn-off characteristics.
Part Context
This part belongs to the MMBF439xL family of N-channel JFETs. It shares the same pinout and general electrical limits as MMBF4391LT1G and MMBF4392LT1G but differs in IDSS and rDS(on) parameters. The S-prefix denotes automotive-grade manufacturing.
Replacement Considerations
Direct functional substitutes within the same family include MMBF4391LT1G and MMBF4392LT1G, though IDSS values differ. Non-automotive equivalents are MMBF4393LT1G without the S-prefix.
FAQ
What is the marking code for the SMMBF4393LT1G?
The device marking code is M6G.
Does the S-prefix affect the electrical performance compared to the standard MMBF4393LT1G?
No, the S-prefix indicates automotive qualification and manufacturing site controls; the electrical characteristics remain identical to the commercial version.
What is the maximum forward gate current allowed?
The maximum forward gate current (IG(f)) is 50 mAdc.
