BCY59X

Name: BCY59X
Brand: STMicroelectronics NV
Rating: 4.5 (10 reviews)
Author: Lisleapex

Low-Noise Audio NPN Bipolar Transistors

6,015 Effective Inventory

BCY59X

Effective Inventory6,015

Low-Noise Audio NPN Bipolar Transistors

Manufacturer Part # : BCY59X
Package/Case: TO-18-3
Brand: STMicroelectronics NV
Product Categories : Single Bipolar Transistors
Series : BCY59

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BCY59X DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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BCY59X Details

The BCY59X is a high-frequency transistor with NPN polarity, commonly used in audio and high-frequency amplifier circuits. It is designed for low-power applications and offers reliable performance in a variety of electronic designs. This transistor is suitable for general electronic projects requiring amplification and signal processing.

Pinout

1 (E): Emitter
2 (B): Base
3 (C): Collector

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

High Frequency Operation: Suitable for high-frequency applications and audio amplification.
Low Power Design: Designed for low-power operation in various electronic circuits.
Reliable Performance: Offers stable and reliable performance in different environments.
NPN Polarity: Features NPN transistor polarity for specific circuit configurations.

Application

Audio Amplifiers: Ideal for audio amplifier circuits due to its high-frequency operation.
Signal Processing: Used in signal processing circuits for amplification and filtering.
General Electronic Projects: Suitable for general electronic projects requiring transistor-based circuits.

Where to Use

The BCY59X transistor is suitable for a wide range of electronic applications, particularly in audio amplifiers, signal processing circuits, and general electronic projects that require NPN transistors for amplification and switching.

How to Use

Integrate the BCY59X transistor into your circuit by connecting the E, B, and C pins to their respective components. Ensure proper biasing and signal levels for optimal performance. Refer to the datasheet for detailed usage instructions and circuit configurations.

Application Circuit

The application circuit diagram for the BCY59X demonstrates how to incorporate the transistor into your electronic design. It provides guidance on connections and component placement for efficient circuit operation.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

BCX70G: A similar high-frequency NPN transistor with compatible characteristics.
BC337: An alternative NPN transistor for general electronic applications.

Complementary

The BCY59X transistor can be complemented by the BCY79X, which offers enhanced performance in audio amplification and signal processing circuits. Ensure compatibility and performance alignment when selecting complementary components.

Frequently Asked Questions

Q: What is the maximum frequency range supported by the BCY59X?

A: The BCY59X is designed for high-frequency operation. Refer to the datasheet for specific frequency range details and limitations.

Q: Can the BCY59X be used in RF circuits?

A: Yes, the BCY59X is suitable for radio frequency (RF) circuits due to its high-frequency characteristics. Ensure proper circuit design and matching for optimal RF performance.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Rohs Code	Yes	Part Life Cycle Code	Obsolete
Part Package Code	BCY	Pin Count !	3
Reach Compliance Code	compliant	ECCN Code	EAR99
Additional Feature !	LOW NOISE	Collector Current-Max (IC)	0.2 A
Collector-Emitter Voltage-Max	45 V	Configuration	SINGLE
DC Current Gain-Min (hFE)	60	JEDEC-95 Code	TO-18
JESD-30 Code	O-MBCY-W3	JESD-609 Code	e3
Number of Elements	1	Number of Terminals	3
Operating Temperature-Max	175 °C	Package Body Material	METAL
Package Shape	ROUND	Package Style	CYLINDRICAL
Polarity/Channel Type	NPN	Power Dissipation-Max (Abs)	0.6 W
Qualification Status !	Not Qualified	Surface Mount !	NO
Terminal Finish	MATTE TIN	Terminal Form !	WIRE
Terminal Position	BOTTOM	Transistor Application	AMPLIFIER
Transistor Element Material	SILICON	Transition Frequency-Nom (fT)	100 MHz
Turn-off Time-Max (toff)	800 ns	Turn-on Time-Max (ton)	150 ns

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification BCY59X PDF Download

FAQs

What is BCY59X?

The BCY59X is a general-purpose PNP transistor designed for low power amplifier and switching applications. It is commonly used in audio amplification, signal processing, and general purpose switching circuits.

How Does BCY59X Work?

The BCY59X works as a PNP transistor, amplifying or switching electronic signals. In an amplification application, it can amplify small input signals to higher output levels. In a switching application, it can control the flow of current in a circuit based on the input signal.

How Many Pins does BCY59X have and What are the Functions of the Pinout Configuration?

The BCY59X is housed in a TO-18 package, which typically has three pins:

Collector: This is the positive lead for current flow in the transistor.
Base: This lead controls the flow of current between the collector and the emitter, based on the input signal.
Emitter: This is the negative lead for current flow in the transistor.

What are the Pros and Cons of BCY59X?

Pros:

General Purpose: Suitable for a wide range of low-power applications.
PNP Transistor: Can be used for both amplification and switching functions.
TO-18 Package: Easy to handle and mount on circuit boards.

Cons:

Low Power: May not be suitable for high-power applications.
Limited Frequency Response: May not be suitable for high-frequency applications.
Temperature Sensitivity: Performance may be affected by temperature variations.

Are There Any Equivalents/Alternatives to BCY59X for Recommendation?

Some equivalents to the BCY59X include the BC557 and BC557B transistors. Alternatives for specific applications may include the 2N3906 and 2N2907 transistors.