Name: MMBF4391
Brand: Fairchild/ON Semiconductor
SKU: MMBF4391
Availability: InStock
Rating: 5 (183 reviews)

MMBF4391

For Reference Only

Part Number	MMBF4391
Manufacturer	Fairchild/ON Semiconductor
Description	JFET N-CH 30V 350MW SOT23
Datasheet	MMBF4391 Datasheet MMBF4391 Specifications
Package	TO-236-3, SC-59, SOT-23-3
ECAD
In Stock	160,800 piece(s)
Unit Price	Request a Quote
Lead Time	Can Ship Immediately
Estimated Delivery Time	May 21 - May 26 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # MMBF4391 (Transistors - JFETs) is manufactured by Fairchild/ON Semiconductor and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For MMBF4391 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add MMBF4391 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of MMBF4391.

MMBF4391 Specifications

Manufacturer	Fairchild/ON Semiconductor
Category	Discrete Semiconductor Products - Transistors - JFETs
Package	TO-236-3, SC-59, SOT-23-3
ECAD
Series	-
FET Type	N-Channel
Voltage - Breakdown (V(BR)GSS)	30V
Drain to Source Voltage (Vdss)	-
Current - Drain (Idss) @ Vds (Vgs=0)	50mA @ 20V
Current Drain (Id) - Max	-
Voltage - Cutoff (VGS off) @ Id	4V @ 1nA
Input Capacitance (Ciss) (Max) @ Vds	14pF @ 20V
Resistance - RDS(On)	30 Ohm
Power - Max	350mW
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

MMBF4391 Datasheet

MMBF4391 Reviews

Ty*****anda

April 7, 2023

★ ★ ★ ★ ★

It arrived on time. I was able to finish a repair before Sunday service and with no over time. Easy to work with.

Harp*****avant

March 22, 2023

★ ★ ★ ★ ★

Awesome components selection and availability. Ordering process is easy. They don't spam me after the purchase.

Hadle*****cdonald

March 5, 2023

★ ★ ★ ★ ★

The helper is super handy, especially if you work with medium size PCB boards as it allows to hold the board steady in every position. It feels pretty sturdy and of good quality.

Tuc***** Din

March 1, 2023

★ ★ ★ ★ ★

Fantastic transaction, very fast delivery. Highly recommended. Thank you.

Mus*****ejia

February 21, 2023

★ ★ ★ ★ ★

Fast delivery, good quality, 100% satisfacted

Write a Review

★★★★★

Not Rated

Thanks for Your Review!

MMBF4391 Packaging

MMBF4391 FAQ

1. How to order MMBF4391 on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that MMBF4391 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the MMBF4391. All suppliers must pass our qualification reviews before they can publish their products including MMBF4391 on Heisener; we pay more attention to the channels and quality of MMBF4391 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the MMBF4391 price and inventory displayed accurate?

The price and inventory of MMBF4391 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of MMBF4391?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MMBF4391 we delivered, we will accept the replacement or return of the MMBF4391 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of MMBF4391.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as MMBF4391 pin diagram, MMBF4391 datasheet?

If you need any after-sales service, please do not hesitate to contact us.

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MMBF4391 Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

D# E02:0323_00077279

ON Semiconductor

Trans JFET N-CH 30V 3-Pin SOT-23 T/R

RoHS: Compliant

MMBF4391

D# V72:2272_06302993

ON Semiconductor

Trans JFET N-CH 3-Pin SOT-23 T/R

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
MMBF4391LT1G D# MMBF4391LT1G	ON Semiconductor	Trans JFET N-CH 30V 3-Pin SOT-23 T/R - Bulk (Alt: MMBF4391LT1G)	0
MMBF4391 D# MMBF4391	ON Semiconductor	Trans JFET N-CH 3-Pin SOT-23 T/R - Bulk (Alt: MMBF4391)	0
SMMBF4391LT1G D# SMMBF4391LT1G	ON Semiconductor	Trans JFET N-CH 30V 3-Pin SOT-23 T/R - Bulk (Alt: SMMBF4391LT1G)	0

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

D# MMBF4391LT1G

ON Semiconductor

Trans JFET N-CH 30V 3-Pin SOT-23 T/R (Alt: MMBF4391LT1G)

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

D# MMBF4391LT1G

ON Semiconductor

Trans JFET N-CH 30V 3-Pin SOT-23 T/R (Alt: MMBF4391LT1G)

Part Number

Manufacturer

Description

Stock

MMBF4391

Fairchild Semiconductor Corporation

360

MMBF4391LT1

Motorola Semiconductor Products

2094

Part Number	Manufacturer	Description	Stock
MMBF4391	Fairchild Semiconductor Corporation	- Tape and Reel	6000
MMBF4391LT1G	ON Semiconductor	- Tape and Reel	231000
SMMBF4391LT1G	ON Semiconductor	TRANS JFET SW N-CH 30V SOT23	0
MMBF4391LT1	ON Semiconductor	- Tape and Reel	231000

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

ON Semiconductor

SOT-23(SOT-23-3) Junction Field-Effect TransistorJFET RoHS

43440

Part Number

Manufacturer

Description

Stock

MMBF4391

Fairchild Semiconductor Corporation

RoHS: Not Compliant

Part Number	Manufacturer	Description	Stock
MMBF4391LT1G D# MMBF4391LT1GOSCT-ND	ON Semiconductor	JFET N-CH 30V 0.225W SOT23-3	391
MMBF4391 D# 2156-MMBF4391-OS-ND	Rochester Electronics LLC	SMALL SIGNAL FIELD-EFFECT TRANSI	17660
SMMBF4391LT1G D# 2156-SMMBF4391LT1G-ND	Rochester Electronics LLC	SMALL SIGNAL N-CHANNEL JFET	63000
MMBF4391LT1 D# MMBF4391LT1OSCT-ND	ON Semiconductor	JFET N-CH 30V 0.225W SOT23	0

Part Number	Manufacturer	Description	Stock
MMBF4391-NL	Fairchild Semiconductor Corporation	In stock shipping within 2days	15260
SMMBF4391LT1G	ON Semiconductor	In stock shipping within 2days	3000
MMBF4391LT1G MMBF4391	ON Semiconductor	In stock shipping within 2days	3000
MMBF4391LT1G	ON Semiconductor	In stock shipping within 2days	15260

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

D# 1431329RL

ON Semiconductor

TRANSISTOR, JFET, N, 30V, SOT-23

RoHS: Compliant

Min Qty: 5

Container: Reel

MMBF4391

D# 1467952

ON Semiconductor

TRANSISTOR, JFET, N, SMD, SOT-323

RoHS: Compliant

Min Qty: 5

Container: Each

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

ON Semiconductor

MMBF4391LT1G Series N Channel 30 V 50 mA JFET Switching Transistor - SOT-23

RoHS: Compliant

pbFree: Yes

30000

Part Number	Manufacturer	Description	Stock
MMBF4391SMD	N/A	OEM/CM QUOTES ONLY \| NO BROKERS	3670
MMBF4391LT1G	ON Semiconductor	OEM/CM QUOTES ONLY \| NO BROKERS	79318
SMMBF4391LT1G	Rochester Electronics LLC	OEM/CM QUOTES ONLY \| NO BROKERS	74970
MMBF4391	Motorola Semiconductor Products	OEM/CM QUOTES ONLY \| NO BROKERS	1
MMBF4391LT1	Motorola Semiconductor Products	OEM/CM QUOTES ONLY \| NO BROKERS	13843
MMBF4391LT	N/A	OEM/CM QUOTES ONLY \| NO BROKERS	959
MMBF4391L	N/L	OEM/CM QUOTES ONLY \| NO BROKERS	119

Part Number	Manufacturer	Description	Stock
MMBF4391	ON Semiconductor	OEM/CM Immediate delivery	36000
MMBF4391LT1G	ON Semiconductor	OEM/CM Immediate delivery	67980
SMMBF4391LT1G	ON Semiconductor	OEM/CM Immediate delivery	3000
MMBF4391LT1	Motorola Semiconductor Products	OEM/CM Immediate delivery	6000
MMBF4391LT1G MMBF4391	ON Semiconductor	OEM/CM Immediate delivery	3000
MMBF4391-NL	Fairchild Semiconductor Corporation	OEM/CM Immediate delivery	36000

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

D# 863-MMBF4391LT1G

ON Semiconductor

JFET 30V 10mA

RoHS: Compliant

3819

MMBF4391

D# 512-MMBF4391

ON Semiconductor

JFET N-Channel Switch

RoHS: Compliant

1324

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

D# XSFP00000056772

ON SEMICONDUCTOR

MMBF4391LT1G Series N Channel 30 V 50 mA JFET Switching Transistor - SOT-23

154428

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G.

D# 26AC2210

ON Semiconductor

Breakdown Voltage Vbr:30V, Zero Gate Voltage Drain Current Idss Min:50mA, Zero Gate Voltage Drain Current Idss Max:150mA, Gate-Source Cutoff Voltage Vgs(off) Max:10V, Transistor Type:JFET, No. of Pins:3 Pin, Product Range:- RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 3000

Container: TAPE & REEL - FULL

3000

MMBF4391LT1G

D# 58M9130

ON Semiconductor

TRANSISTOR, JFET, N, 30V, SOT-23, Breakdown Voltage Vbr:30V, Zero Gate Voltage Drain Current Idss Min:50mA, Zero Gate Voltage Drain Current Idss Max:150mA, Gate-Source Cutoff Voltage Vgs(off) Max:10V, Transistor Case Style:SOT-23, RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 5

Container: Cut Tape

709

Part Number	Manufacturer	Description	Stock
MMBF4391LT1-D D# NS-MMBF4391LT1-D	ON Semiconductor	OEM/CM ONLY	9549
MMBF4391LT1G D# NS-MMBF4391LT1G	ON Semiconductor	OEM/CM ONLY	353033
MMBF4391LT1 D# NS-MMBF4391LT1	ON Semiconductor	OEM/CM ONLY	6966
MMBF4391L D# NS-MMBF4391L	ON Semiconductor	OEM/CM ONLY	1162

Part Number	Manufacturer	Description	Stock
MMBF4391LT1	ON Semiconductor	JFET Transistor, N-Channel, SOT-23	1959
MMBF4391LT1G	ON Semiconductor	SMALL SIGNAL FIELD-EFFECT TRANSISTOR, 30V, 1-ELEMENT, N-CHANNEL, SILICON, METAL-OXIDE SEMICONDUCTOR FET, TO-236	7065
MMBF4391	Fairchild Semiconductor Corporation		1438
MMBF4391LT	--		661

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

D# 6255723

ON Semiconductor

ON Semiconductor MMBF4391LT1G N-Channel JFET, 30 V, Idss 50 to 150mA, 3-Pin SOT-23, PK

Min Qty: 5

Container: Package

420

Part Number	Manufacturer	Description	Stock
SMMBF4391LT1G	ON Semiconductor	Small Signal Field-Effect Transistor, N-Channel, Junction FET RoHS: Compliant	63000
MMBF4391LT1G	ON Semiconductor	Small Signal Field-Effect Transistor, 30V, N-Channel, MOSFET, TO-236 RoHS: Compliant	322863
MMBF4391	ON Semiconductor	MMBF4391 - Small Signal Field-Effect Transistor, N-Channel JFET RoHS: Compliant	17660

Part Number	Manufacturer	Description	Stock
MMBF4391L	N/L	OEM/CM ONLY	124
MMBF4391SMD	N/A	OEM/CM ONLY	3180
MMBF4391LT1	Motorola Semiconductor Products	OEM/CM ONLY	44035
MMBF4391LT1G	ON Semiconductor	OEM/CM ONLY	15694
MMBF4391LT	N/A	OEM/CM ONLY	843
MMBF4391	Fairchild Semiconductor Corporation	OEM/CM ONLY	31327

Part Number	Manufacturer	Description	Stock
MMBF4391-NL	Fairchild Semiconductor Corporation	IN stock Immediate delivery	35985
SMMBF4391LT1G	ON Semiconductor	IN stock Immediate delivery	3015
MMBF4391	ON Semiconductor	IN stock Immediate delivery	35985
MMBF4391LT1G MMBF4391	ON Semiconductor	IN stock Immediate delivery	3015
MMBF4391LT1G	ON Semiconductor	IN stock Immediate delivery	67965
MMBF4391LT1	Motorola Semiconductor Products	IN stock Immediate delivery	6015

Part Number	Manufacturer	Description	Stock
SMMBF4391LT1G	ON Semiconductor	shipping today	3005
MMBF4391	Fairchild Semiconductor Corporation	shipping today	92846
MMBF4391LT1G	ON Semiconductor	shipping today	67976
MMBF4391LT1	Motorola Mobility LLC	shipping today	27

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

D# 40958921

ON Semiconductor

Trans JFET N-CH 30V 3-Pin SOT-23 T/R

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

MMBF4391LT1GOSCT

ON Semiconductor

RFQ

642

Part Number

Manufacturer

Description

Stock

MMBF4391LT1

ON Semiconductor

JFET N-CH 30V 0.225W SOT23 / JFET Switching Transistors

3300

MMBF4391LT1G

ON Semiconductor

JFET N-CH 30V 0.225W SOT23

3460

Part Number

Manufacturer

Description

Stock

MMBF4391LT1G

D# 1431329

ON Semiconductor

TRANSISTOR, JFET, N, 30V, SOT-23

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

719

MMBF4391

D# 1467952

ON Semiconductor

TRANSISTOR, JFET, N, SMD, SOT-323

RoHS: Compliant

Min Qty: 1

Container: Each

Quick Inquiry

MMBF4391

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