BCM857BS

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BCM857BS

+Nomenclature

Bipolar Transistors - BJT

  • FabricantLa société diodes

  • Pièce fabricant #BCM857BS

  • Fiche technique BCM857BS DataSheet

  • En stock3830

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Présentation

Description

The BCM857BS is a dual NPN bipolar junction transistor (BJT) housed in a compact SOT-363 package, designed for applications requiring low noise and high gain. Produced by NXP Semiconductors, it is typically used in audio, signal processing, or low-level analog signal amplification circuits.
Key features include:
1. Dual Transistor Configuration: The BCM857BS contains two separate NPN transistors, which can operate independently or in a configuration that suits the specific application needs.
2. Low Noise Performance: Essential for maintaining signal integrity in audio or sensitive analog applications, ensuring minimal interference.
3. High Gain: Offers substantial amplification capacity, with a DC current gain (hFE) typically ranging from 200 to 450, depending on operating conditions.
4. Compact Design: The SOT-363 surface-mount package is ideal for space-constrained applications, providing efficient use of circuit board real estate.
5. Wide Range of Applications: Suitable for amplifying low-level signals, switching applications, and more generally, in any circuit requiring reliable transistor performance.
Overall, the BCM857BS is a versatile component in modern electronic designs, valued for its efficiency and reliability.

Equivalent

The BCM857BS is a dual NPN transistor array commonly used in switching and amplification applications. Equivalent products include:
1. BC847BS - Dual NPN transistor with similar specifications.
2. BC846BS - Another dual NPN transistor with comparable characteristics.
3. PMBT3904 - A single NPN transistor that can be used in pairs for similar applications.
Ensure to verify the specifications and pin configurations as they may vary slightly.

Features

The BCM857BS is a dual NPN/PNP transistor array designed for low-noise, high-gain applications. Key features include:
1. Dual Transistor Configuration: It integrates two NPN and two PNP transistors in a single package, providing matched pairs with high current gain.
2. Low Noise: The transistors are optimized for low noise performance, making them suitable for audio and high-fidelity applications.
3. High Gain: It offers high gain, which is beneficial in amplification applications.
4. Compact Package: Housed in a small SOT363 package, it is ideal for space-constrained applications, such as portable devices.
5. Thermal Matching: The design ensures good thermal matching between the transistors, improving performance consistency.
6. Wide Operating Range: It supports a broad range of operating voltages and currents, providing flexibility in various circuits.
These features make the BCM857BS suitable for use in differential amplifiers, audio preamplifiers, and other precision circuits where low noise and high gain are critical.

Pinout

The BCM857BS is a dual NPN matched pair bipolar junction transistor (BJT) designed for general purpose amplifier applications. It is housed in a small SOT-363 package.
Pin Count and Configuration:
1. Pin 1 (B1) - Base of transistor 1
2. Pin 2 (E1) - Emitter of transistor 1
3. Pin 3 (C2) - Collector of transistor 2
4. Pin 4 (B2) - Base of transistor 2
5. Pin 5 (E2) - Emitter of transistor 2
6. Pin 6 (C1) - Collector of transistor 1
Function:
The BCM857BS is primarily used in applications requiring closely matched transistor pairs, such as differential amplifiers, and can help minimize the impact of temperature variations and manufacturing process differences. It offers features like low noise, high gain, and low offset voltage, making it suitable for precision analog signal processing tasks.

Manufacturer

The BCM857BS is manufactured by NXP Semiconductors. NXP is a global semiconductor company that provides a wide range of products and solutions for the automotive, identification, wireless infrastructure, industrial, consumer, and computing markets.

Application

The BCM857BS is a dual NPN matched pair transistor commonly used in applications requiring precise matching of transistor characteristics. Its primary applications include differential amplifiers, current mirrors, and analog signal processing circuits. It is often employed in precision amplification and switching tasks where low noise, low offset voltage, and high gain are crucial. Additionally, the BCM857BS is suitable for use in low-power and low-voltage applications, making it ideal for portable and battery-operated devices. Its small SOT363 package allows for space-efficient designs in compact electronic devices.

Package

The BCM857BS is a dual NPN transistor available in a small plastic SOT363 (also known as SC-70-6 or SC-88) package. This package type is commonly used for surface-mount technology on circuit boards.