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Product Detailed Parameters
- Description：.5V 3V 50MA 350MW SMD JFET N CHA
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：40 V
- Drain to Source Voltage (Vdss)：40 V
- Current - Drain (Idss) @ Vds (Vgs=0)：5 mA @ 20 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：500 mV @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：14pF @ 20V
- Resistance - RDS(On)：100 Ohms
- Power - Max：350 mW
- Operating Temperature：-65°C ~ 175°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23
- Grade：-
- Qualification：-
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Overview
The CMPF4393 TR TIN/LEAD is an N-channel silicon JFET manufactured by Central Semiconductor Corp in a surface-mount SOT-23 package. It features a drain-source voltage (Vdss) of 40 V and a gate-source breakdown voltage (V(BR)GSS) of 40 V. The device has a maximum power dissipation (Pd) of 350 mW at 25°C ambient temperature. Key electrical parameters include a drain current (Idss) of 100 mA at Vgs=0, a gate-source cutoff voltage (VGS off) of 6 V at Id=1 nA, and an on-resistance (Rds(on)) of 625 Ohms. The component operates within a junction temperature range of -65°C to +150°C.
Feature Summary
- N-channel silicon construction for reliable switching performance
- Surface-mount SOT-23 packaging for compact circuit integration
- High input impedance characteristics typical of JFET technology
Applications
- General purpose switching applications
- Low noise amplifier stages
- Analog signal routing circuits
Procurement Notes
Verify the specific ordering suffix 'TR TIN/LEAD' against the manufacturer's current datasheet to confirm lead-free status and tape-and-reel packaging quantity. Ensure compatibility with RoHS directives if required by the end application. Cross-reference the Mouser part number 610-CMPF4393TR-TL for accurate distributor availability and stock levels before finalizing procurement plans.
Selection Notes
Select this component when a surface-mount N-channel JFET with 40 V rating is required. Compare Idss and Rds(on) specifications against similar parts like the CMPF4391 or CMPF4392 to ensure the specific current and resistance values match the circuit design requirements. Verify that the SOT-23 footprint aligns with the PCB layout constraints.
Part Context
This part belongs to the CMPF439x series of surface-mount N-channel JFETs from Central Semiconductor. The series includes variants such as CMPF4391, CMPF4392, and CMPF4393, which share the same physical package and general ratings but differ in specific electrical parameters like Idss and Rds(on). This allows designers to choose the precise device characteristics needed for their application while maintaining consistent board space utilization.
Replacement Considerations
Direct substitutes within the same family include CMPF4391 and CMPF4392, though their Idss and Rds(on) values differ. External cross-compatibility should be verified against other SOT-23 N-channel JFETs with similar 40 V ratings and 350 mW power dissipation capabilities. Always check pinout compatibility and thermal resistance specifications before substitution.
