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Name: BLF145,112
Brand: Ampleon USA Inc.
SKU: BLF145,112
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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Ampleon USA Inc. BLF145,112

Part No.:: BLF145,112

Manufacturer:: Ampleon USA Inc.

Package:: SOT-123A

Datasheet:: BLF145,112.pdf

Description:: RF FET NCHA 65V 27DB SOT123A

In Stock:: 3016

Quantity:: Add To Cart

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BLF145,112 Specifications

Packaging:
Tray
Series:
-
ProductStatus:
Obsolete
TransistorType:
N-Channel
Frequency:
28MHz
Gain:
27dB
Voltage-Test:
28 V
CurrentRating(Amps):
6A
NoiseFigure:
-
Current-Test:
1.3 A
Power-Output:
8W
Voltage-Rated:
65 V

BLF145,112 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BLF145,112 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 BLF145,112 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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BLF145,112 information

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BLF145,112 Typical application Circuitry

The BLF145,112 is a robust RF transistor specifically engineered for broadband applications in the VHF range. This component is widely utilized in RF power amplifiers for broadcast transmitters, industrial RF heating, and RF plasma generation, highlighting its importance in applications that demand high power under challenging conditions.

Key Features and Specifications:

- Frequency Range: The BLF145,112 operates effectively over a broad frequency spectrum in the VHF band.

- High Output Power: The BLF145,112 is capable of delivering significant output power, essential for broadcasting and industrial applications.

- High Voltage Operation: The BLF145,112 is designed to endure high voltages, which enhances the durability and reliability of the applications.

- Gain: The BLF145,112 provides substantial gain, critical for efficient amplification in transmitter circuits.

- Efficiency: The BLF145,112 is optimized for high efficiency, which helps in reducing thermal load and improving the longevity of the system.

Application Scenario: VHF Broadcast Transmitter

In a VHF broadcast transmitter, the BLF145,112 is employed in the power amplifier stage where it boosts the radio frequency (RF) signals to suitable levels for transmission over extensive distances.

Detailed Circuit Design:

1. Power Supply Connection:

- VDD (Collector, Pin 2 of BLF145,112): Attach to a high-voltage power supply, typically between 28V and 50V, depending on specific application needs. Place a large-value electrolytic capacitor (e.g., 470 µF) near this pin to stabilize the voltage and filter out fluctuations.

2. Input Signal Connection:

- Input (Base, Pin 1 of BLF145,112): This pin accepts the RF input from the previous driver stage. Use a coupling capacitor (e.g., 100 pF) to block DC and match impedance.

3. Output Signal Connection:

- Output (Emitter, Pin 3 of BLF145,112): The amplified RF output is extracted from this pin. Implement a matching network here to optimize power transfer to the antenna or subsequent stage, possibly using inductors and capacitors to configure a filter.

4. Biasing and Stability:

- Bias Resistors for BLF145,112: Connect a resistor between the base and a stable voltage source to set the transistor's operating point. Include feedback resistors to stabilize operations against temperature and voltage changes.

5. Thermal Management:

- Heat Sink for BLF145,112: Owing to significant power dissipation, it is crucial to mount the BLF145,112 on an adequate heat sink with effective thermal coupling to prevent overheating and ensure consistent operation.

Design Considerations:

- RF Layout Practices for BLF145,112: Minimize parasitics through careful PCB layout-short, wide traces and solid grounding are essential.

- Protection Circuits: Add protection circuits like transient voltage suppressors at critical nodes to protect the BLF145,112 against spikes and ESD.

- Signal Integrity: Employ impedance matching techniques to ensure optimal power transfer and minimal reflection, crucial at high frequencies.

- Device Isolation: Provide physical and electrical isolation for the BLF145,112 to minimize interference from other circuit stages.

Employing the BLF145,112 allows for the design of efficient and robust VHF transmitters that meet the rigorous demands of various communication and industrial applications, ensuring reliable performance and extended operational lifespan.

BLF145,112 FAQ

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3. Are the BLF145,112 price and inventory displayed accurate?

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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 BLF145,112?

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 BLF145,112 we delivered, we will accept the replacement or return of the BLF145,112 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 BLF145,112.

(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