2N2222A Datasheet PDF – 40V, 0.6A, Silicon NPN Transistor

This is Silicon NPN Transistor. This is a type of bipolar junction transistor (BJT) made from silicon, a semiconductor material. This transistor is designed for amplifying or switching electronic signals in various electronic circuits.

Part Number: 2N2222A

Function: 40V, 0.6A, NPN Transistor

Package: TO-39, TO-18 Type

Manufacturer: STMicroelectronics

2N2222A Pinout

2N2222A datasheet

 

Description

The 2N2219A and 2N2222A are silicon Planar Epitaxial NPN transistors in Jedec TO-39 (for 2N2219A) and in Jedec TO-18 (for 2N2222A) metal case. They are designed for high speed switching application at collector current up to 500mA, and feature useful current gain over a wide range of collector current, low leakage currents and low saturation voltage.

:

Absolute Maximum Ratings :

1. Collector-Base Voltage (IE = 0) : VCBO = 75 V

2. Collector-Emitter Voltage (IB = 0) : VCEO = 40 V

3. Emitter-Base Voltage (IC = 0) : VEBO = 6 V

4. Collector Current : IC= 0.6 A

5. Collector Peak Current (tp < 5 ms) : ICM = 0.8 A

6. Junction Temperature: Tj = 175°C

7. Storage Temperature: Tsg = -65 ~ +175°C

Other data sheets are available within the file: 2N2218, 2N2219, 2N2219A, 2N2221, 2N2222

2N2222A Datasheet PDF Download


2N2222A pdf

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SD6864 PDF Datasheet – Current Mode PWM+PFM Controller

This post explains for the controller. A current mode PWM+PFM controller is a type of integrated circuit (IC) or controller chip used in power supply and voltage regulator circuits to efficiently regulate the output voltage while dynamically switching between Pulse-Width Modulation (PWM) and Pulse Frequency Modulation (PFM) control modes. This combination of control techniques allows for high efficiency over a wide range of load conditions, making it suitable for battery-powered and energy-efficient applications.

The Part Number is SD6864, SD6864P65K67.

The function of this semiconductor is Current Mode PWM+PFM Controller.

The package is SOP 8 Pin Type

Manufacturer: SILAN MICROELECTRONICS

Preview images :

1 page
SD6864 pdf

Description

The SD6864 is current mode PWM+PFM controller with built-in highvoltage MOSFET used for SWPS, with low standby power and low start current for power switch. In standby mode, the circuit enters burst mode to reduce the standby power dissipation. The switch frequency is 25~67KHz with jitter frequency for low EMI. Built-in peak current compensation circuit makes the limit output power stable even with different input AC voltage.

Limit output power can be adjusted through the resistor. Maximum peak current compensation during power-on reduces pressure on transformer to avoid saturation, the peak current compensation will decrease for balance after power-on. It integrates various protections such as undervoltage lockout, overvoltage protection, overload protection, lead edge blanking, primary winding overcurrent protection and thermal shutdown. […]

2 page
SD6864 pinout datasheet

Features

1. Energy Star 2.0 standard

2. Lower start-up current (3mA)

3. Various switching frequency following load for the higher efficiency

4. Frequency jitter for low EMI

5. Overvoltage, overcurrent, overload and over temperature protections.

6. Adjustable limit output power

7. Undervoltage lockout

8. Built-in high voltage MOSFET

 

SD6864 PDF Datasheet