JFETs

Use the filters and product table below to compare JFETs components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.

If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Package/Case	Packaging	Product Status	FET Type	Voltage - Breakdown (V(BR)GSS)	Drain to Source Voltage (Vdss)	Current - Drain (Idss) @ Vds (Vgs=0)	Current Drain (Id) - Max	Voltage - Cutoff (VGS off) @ Id	Input Capacitance (Ciss) (Max) @ Vds	Resistance - RDS(On)	Power - Max	Operating Temperature	Grade	Qualification	Mounting Type	Supplier Device Package
SMP4340TR JFET N-Channel -50V Low Ciss InterFET	3,000	-	RFQ	Datasheet	SMP4340	SOT-23-3	Tape & Reel (TR)	Active	N-Channel	-	50 V	2 mA @ 15 V	-	2 V @ 100 nA	3pF @ 15V	550 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
IF140ST3TR JFET N-Channel -20V Low Ciss InterFET	3,000	-	RFQ	Datasheet	IF140	SOT-23-3	Tape & Reel (TR)	Active	N-Channel	-	20 V	4 mA @ 15 V	-	2 V @ 5 nA	1.8pF @ 15V	300 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP4341TR JFET N-Channel -50V Low Ciss InterFET	3,000	-	RFQ	Datasheet	SMP4341	SOT-23-3	Tape & Reel (TR)	Active	N-Channel	-	50 V	4.5 mA @ 15 V	-	3.5 V @ 100 nA	3pF @ 15V	450 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP4392TR JFET N-Channel -40V Low Noise InterFET	3,000	-	RFQ	Datasheet	SMP4392	SOT-23-3	Tape & Reel (TR)	Active	N-Channel	-	40 V	35 mA @ 20 V	-	2.5 V @ 1 nA	13pF @ 20V	45 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP4391TR JFET N-Channel -40V Low Noise InterFET	3,000	-	RFQ	Datasheet	SMP4391	SOT-23-3	Tape & Reel (TR)	Active	N-Channel	-	40 V	65 mA @ 20 V	-	4.5 V @ 1 nA	13pF @ 20V	28 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP5116TR JFET P-Channel 30V Low Noise InterFET	3,000	-	RFQ	Datasheet	SMP5116	SOT-23-3	Tape & Reel (TR)	Active	P-Channel	-	30 V	10 mA @ 15 V	-	2 V @ 1 nA	12pF @ 10V	110 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP4117TR JFET N-Channel -40V Low Ciss InterFET	3,000	-	RFQ	Datasheet	SMP4117	SOT-23-3	Tape & Reel (TR)	Active	N-Channel	-	40 V	60 µA @ 10 V	-	1.2 V @ 1 nA	1.8pF @ 10V	12.5 kOhms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP5460TR JFET P-Channel 40V Low Ciss InterFET	3,000	-	RFQ	Datasheet	SMP5460	SOT-23-3	Tape & Reel (TR)	Active	P-Channel	-	40 V	2 mA @ 15 V	-	2 V @ 1 µA	4pF @ 15V	650 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP4416TR JFET N-Channel -30V Low Ciss InterFET	3,000	-	RFQ	Datasheet	SMP4416	SOT-23-3	Tape & Reel (TR)	Active	N-Channel	-	30 V	8 mA @ 15 V	-	3 V @ 1 nA	3.5pF @ 15V	180 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP5114TR JFET P-Channel 30V Low Noise InterFET	3,000	-	RFQ	Datasheet	SMP5114	SOT-23-3	Tape & Reel (TR)	Active	P-Channel	-	30 V	45 mA @ 15 V	-	6 V @ 1 nA	12pF @ 10V	65 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3

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FREQUENTLY ASKED QUESTIONS

JFETs FAQ

Common questions about filtering, comparing and sourcing JFETs components.

How can I narrow the JFETs selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific JFETs part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.