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BF257

Name: BF257
Brand: ST
SKU: JT25-BF257
Price: 0.0001 USD
Availability: InStock
Rating: 5 (1 reviews)

RK Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 24V; Output Voltage (Vdc): 15V; Power: 1W; Safety standards and approval: EN 60950 certified, rated for 250VAC; Optional Continuous Short Circuit Protected; 3kVDC & 4kVDC Isolat,Bipolar Transistors NPN High Voltage

Manufacturer :	STMicroelectronics, Inc
Package/Case :	TO 5
Product Categories :	Bipolar Transistors
Datasheet:	BF257 Datasheet (PDF)
RoHs Status:	Rohs
In-stock:	7000

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BF257 Product Details

The BF257 parts are Bipolar NPN Device in a Hermetically sealed TO39, manufactured by ST are available for purchase at Jotrin Electronics. Here you can find various types and values of electronic parts from the world's leading manufacturers. The BF257 components of Jotrin Electronics are carefully chosen, undergo stringent quality control, and are successfully meet all required standards.

The production status marked on Jotrin.com is for reference only. If you didn't find what you were looking for, you can get more valuable information by emails, such as the BF257 Inventory quantity, preferential price, datasheet, and manufacturer. We are always happy to hear from you, so feel free to contact us.

The BF256B is IC AMP RF N-CH 30V TO-92, that includes Bulk Packaging, they are designed to operate with a 0.007055 oz Unit Weight, Mounting Style is shown on datasheet note for use in a Through Hole, that offers Package Case features such as TO-92, Configuration is designed to work in Single, as well as the 350 mW Pd Power Dissipation, the device can also be used as N-Channel Transistor Polarity. In addition, the Forward Transconductance Min is 0.0045 S, the device is offered in - 30 V Vgs Gate Source Breakdown Voltage, the device has a 1.5 mA to 7 mA of Drain to Source Voltage Vdss.

The BF256A is TRANS JFET RF SS N-CH 30V TO-92 manufactured by FAIRCHILD. The BF256A is available in TO-226-3, TO-92-3 (TO-226AA) Package, is part of the RF FETs, , and with support for TRANS JFET RF SS N-CH 30V TO-92, RF Mosfet N-Channel JFET 800MHz 11dB TO-92-3.

BF256C with circuit diagram manufactured by FSC. The BF256C is available in TO-92 Package, is part of the IC Chips, RF Mosfet N-Channel JFET TO-92-3, Trans FET N-CH 3-Pin TO-92 Bulk.

Technical Parameters

Transistor Polarity
NPN
Collector Base Voltage VCBO
160 V
Collector Emitter Voltage VCEO Max
160 V
Emitter Base Voltage VEBO
5 V
Maximum DC Collector Current
0.1 A
Gain Bandwidth Product fT
90 MHz
DC Collector/Base Gain hfe Min
25
Maximum Operating Temperature
+ 150 C
Mounting Style
Through Hole
Package / Case
TO 5
Maximum Power Dissipation
5000 mW
Packaging
Bulk
Factory Pack Quantity
500

BF257 Related Products

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Estimated Delivery Time: Jun 03 - Jun 08 days (choose Expedited at checkout).

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Shipping

Shipping Type
Ship Fee
Lead Time
DHL
$20.00-$40.00 (0.50 KG)
2-5 days
Fedex
$20.00-$40.00 (0.50 KG)
3-7 days
UPS
$20.00-$45.00 (0.50 KG)
2-5 days
TNT
$25.00-$65.00 (0.50 KG)
2-5 days
EMS
$25.00-$45.00 (0.50 KG)
5-14 days
REGISTERED AIR MAIL
$2.00-$3.00 (0.10 KG)
7-30 days

Processing Time：Shipping fee depend on different zone and country.

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We provide high quality products, thoughtful service and after sale guarantee

We have rich products, can meet your various needs.
Minimum order quantity starts from 1pcs.
Lowest international shipping fee starts from US$2.00.
90 days quality guarantee for all products.

Packing

Step1: Products
Step2: Vacuum Packaging
Step3: Anti-Static Bag
Step4: Individual Packaging
Step5: Packaging Boxes
Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Guarantees

1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

FAQ:

Q: How does Jotrin guarantee that BF257 is the original manufacturer or agent of ST?: We have a professional business development department to strictly test and verify the qualifications of ST original manufacturers and agents. All ST suppliers must pass the qualification review before they can publish their BF257 devices; we pay more attention to the channels and quality of BF257 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of BF257 chips? Including ST original factory information, Bipolar Transistors application, BF257 pictures?: You can use Jotrin's intelligent search engine, or filter by Bipolar Transistors category, or find it through STMicroelectronics, Inc Information page.
Q: Are the ST's BF257 price and stock displayed on the platform accurate?: The ST's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for BF257, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?: Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?: TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?: Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of BF257?: 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 BF257 we delivered, we will accept the replacement or return of the BF257 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 BF257.
(3)The BF257 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
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as BF257 datasheet pdf, BF257 pin diagram?: Need any After-Sales service, please feel free contact us: sales@jotrin.com

STMicroelectronics, Inc

ST Microelectronics is a global independent semiconductor company and a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications, and that designs, develops, manufactures and markets a broad spectrum of products....