ZTX749A_D26Z

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Transistor Type:	PNP
Current - Collector (Ic) (Max):	2A
Voltage - Collector Emitter Breakdown (Max):	35V
Vce Saturation (Max) @ Ib, Ic:	500mV @ 200mA, 2A
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	100 @ 1A, 2V
Power - Max:	1W
Frequency - Transition:	100MHz
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-226
Base Part Number:	ZTX749A

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The ZTX749A_D26Z application field and working principle are commonly used in many areas of circuit design and engineering. As part of the Transistors - Bipolar (BJT) - Single family, the ZTX749A_D26Z has some unique and useful characteristics in its range of applications. This article will provide an overview of the application field and working principle of the ZTX749A_D26Z and discuss its advantages and limitations in comparison to similar transistors.

What is the ZTX749A_D26Z?

The ZTX749A_D26Z is a silicon NPN transistor made by Infineon Technologies. It is a three-terminal switching device optimized for high-frequency, general-purpose switching and amplifier applications. It is designed for use in high-speed circuits, such as switching power supplies, active filters, audio amplifiers, and logic circuits, among other applications.

Application field

The ZTX749A_D26Z is suitable for a wide range of applications, including:

• Logic-level switching
• Lighting controls
• Motor speed controls
• Automatic test equipment
• Liquid crystal display (LCD) driver circuits
• High frequency circuits such as switching power supplies
• Audio amplifiers
• Pulse circuits
• Active filters

The ZTX749A_D26Z is particularly suitable for high frequency, high-speed switching applications due to its high current gain and fast switching speed.

Working Principle

The ZTX749A_D26Z is a three-terminal semiconductor device, consisting of an NPN-type region between two PNP-type regions. When the base-emitter voltage (VBE) is higher than the base-collector voltage (VBC), a current can flow through the NPN region, turning it ‘on’. This process is known as forward biasing.When a small current is injected into the base (B) terminal, a much larger current flows through the device from collector (C) to emitter (E). This ratio of output current to input current is referred to as the ‘current gain’ and is an important characteristic of transistors. The formula for this is:Where:IC = Output currentIB = Input currentThe ‘gain’ of the ZTX749A_D26Z is typically between 30 and 100.In summary, the ZTX749A_D26Z is designed for high frequency, high-speed switching applications and is suitable for use in a wide range of applications, including logic-level switching, LCD driver circuits, and audio amplifiers. It has a good current gain and is capable of operating at high frequency.

Advantages and Limitations

The ZTX749A_D26Z offers a number of advantages over other transistors, including:

• Low noise
• Low input capacitance
• Fast switching speed
• Low thermal resistance

However, it does have certain limitations when compared to other transistors. These include:

• High power dissipation
• Low current gain
• Limited voltage range

These limitations can limit the ZTX749A_D26Z’s effectiveness in certain applications.

Conclusion

The ZTX749A_D26Z is a Transistors - Bipolar (BJT) - Single transistor and is suitable for use in high frequency, high-speed switching applications. It can be used in a range of applications, including logic-level switching, LCD driver circuits, and audio amplifiers. It has a good current gain and can operate at high frequencies. However, it has some drawbacks, including a high power dissipation and low current gain. With this in mind, the ZTX749A_D26Z is best suited for specific applications and should be carefully chosen for use within a circuit to ensure its full potential is realized.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description