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Name: BU508AF
Brand: STMicroelectronics
SKU: BU508AF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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STMicroelectronics BU508AF

Part No.:: BU508AF

Manufacturer:: STMicroelectronics

Package:: TO-3P-3 Full Pack

Datasheet:: BU508AF.pdf

Description:: TRANS NPN 700V 8A TO3PF

In Stock:: 2335

Quantity:: Add To Cart

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BU508AF Specifications

Packaging:
Tube
Series:
-
ProductStatus:
Active
TransistorType:
NPN
Current-Collector(Ic)(Max):
8 A
Voltage-CollectorEmitterBreakdown(Max):
700 V
VceSaturation(Max)@IbIc:
1V @ 1.6A, 4.5A
Current-CollectorCutoff(Max):
200µA
DCCurrentGain(hFE)(Min)@IcVce:
10 @ 100mA, 5V
Power-Max:
50 W
Frequency-Transition:
-
OperatingTemperature:
150°C (TJ)
MountingType:
Through Hole

BU508AF this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BU508AF price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for BU508AF to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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BU508AF information

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BU508AF Typical application Circuitry

The BU508AF is a high voltage, fast-switching NPN power transistor. It is primarily used in high-voltage applications such as horizontal deflection systems in CRT displays, switching regulators, and power supplies.

Application Scenario: Horizontal Deflection in CRT Displays

Use Case: The BU508AF is critical in driving the horizontal deflection coil in CRT displays, controlling the electron beam's horizontal movement.

Key Parameters of BU508AF:

- High Collector-Emitter Voltage: Suitable for CRT display applications.

- Fast Switching Speed: Essential for precise electron beam control.

- Low Collector Saturation Voltage: Improves efficiency and reduces heat.

- High Current Handling: Capable of driving the high currents required by deflection coils.

Circuit Design: CRT Horizontal Deflection Circuit

Detailed Circuit Implementation:

1. Collector to Deflection Coil (Pin 2): Connect the collector (Pin 2) to one end of the horizontal deflection coil.

2. Emitter to Ground (Pin 1): Connect the emitter (Pin 1) to the ground.

3. Base Drive (Pin 3): Apply a sawtooth waveform to the base (Pin 3) to control the deflection rate.

Design Considerations:

1. Waveform Shape: Ensure the sawtooth waveform is accurate for proper deflection.

2. Thermal Management: Implement heat sinks to manage heat dissipation.

3. Drive Signal Stability: The BU508AF base drive must be stable to avoid display distortion.

4. Isolation: Use proper isolation techniques to protect the control circuitry.

5. Component Selection: Choose components that can withstand high voltage and current.

6. Power Efficiency: Optimize the circuit for minimal power loss.

7. EMI Management: Implement shielding and filtering to minimize EMI.

8. Safety Compliance: Adhere to safety standards for high-voltage circuitry.

In a CRT horizontal deflection system, the BU508AF plays a crucial role in controlling the electron beam's horizontal scanning by modulating the current through the deflection coil. This process is integral to the correct display of images on the CRT screen. The circuit design must focus on accurate waveform generation, efficient heat management, and safety considerations due to the high voltages involved.

BU508AF FAQ

1. How to order BU508AF on icwhale.com?

Currently, icwhale.com 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 icwhale.com guarantee that BU508AF is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the BU508AF. All suppliers must pass our qualification reviews before they can publish their products including BU508AF on icwhale.com; we pay more attention to the channels and quality of BU508AF products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the BU508AF price and inventory displayed accurate?

The price and inventory of BU508AF 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 BU508AF?

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 BU508AF we delivered, we will accept the replacement or return of the BU508AF 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 BU508AF.

(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