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
IF170DST3 JFET N-Channel -30V Low Noise InterFET	880	-	RFQ	Datasheet	IF170	SOT-23-3	Strip	Active	N-Channel	-	30 V	22 mA @ 10 V	-	1.5 V @ 1 nA	15pF @ 10V	38 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMPJ109 JFET N-Channel -25V Low Noise InterFET	980	-	RFQ	Datasheet	SMPJ109	SOT-23-3	Strip	Active	N-Channel	-	25 V	240 mA @ 15 V	-	3.5 V @ 0.5 nA	28pF @ 0V	10 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
IF170BST3 JFET N-Channel -30V Low Noise InterFET	895	-	RFQ	Datasheet	IF170	SOT-23-3	Strip	Active	N-Channel	-	30 V	7 mA @ 10 V	-	800 mV @ 1 nA	15pF @ 10V	50 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP5114 JFET P-Channel 30V Low Noise InterFET	605	-	RFQ	Datasheet	SMP5114	SOT-23-3	Strip	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
SMP4118A JFET N-Channel -40V Low Ciss InterFET	980	-	RFQ	Datasheet	SMP4118	SOT-23-3	Strip	Active	N-Channel	-	40 V	130 µA @ 10 V	-	2 V @ 1 nA	1.8pF @ 10V	9 kOhms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMPJ110 JFET N-Channel -25V Low Noise InterFET	475	-	RFQ	Datasheet	SMPJ110	SOT-23-3	Strip	Active	N-Channel	-	25 V	100 mA @ 15 V	-	2 V @ 0.5 nA	28pF @ 0V	15 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMP152 JFET N-Channel -20V Low Noise InterFET	659	-	RFQ	Datasheet	SMP152	SOT-23-3	Strip	Active	N-Channel	-	20 V	14 mA @ 10 V	-	1.2 V @ 1 nA	15pF @ 10V	42 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMPJ305 JFET N-Channel -30V Low Ciss InterFET	980	-	RFQ	Datasheet	SMPJ305	SOT-23-3	Strip	Active	N-Channel	-	30 V	4 mA @ 15 V	-	2 V @ 1 nA	3.5pF @ 15V	250 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
SMPJ177 JFET P-Channel 30V Low Noise InterFET	960	-	RFQ	Datasheet	SMPJ177	SOT-23-3	Strip	Active	P-Channel	-	30 V	7 mA @ 15 V	-	1.5 V @ 10 nA	12pF @ 0V	130 Ohms	350 mW	-55°C ~ 150°C (TJ)	-	-	Surface Mount	SOT-23-3
IF4500ST3 JFET N-Channel -20V Low Noise InterFET	935	-	RFQ	Datasheet	IF4500	SOT-23-3	Strip	Active	N-Channel	-	20 V	30 mA @ 15 V	-	1.2 V @ 1 nA	28pF @ 15V	20 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.