2SD1111

Name: 2SD1111
Brand: Onsemi
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

TO-92 NPN Transistor, 700mA, 50V, Small Signal Type

6,041 Effective Inventory

2SD1111

Effective Inventory6,041

TO-92 NPN Transistor, 700mA, 50V, Small Signal Type

Manufacturer Part # : 2SD1111
Package/Case: TO-226-3
Part Status : ACTIVE
Brand: Onsemi
Product Categories : Single Bipolar Transistors
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2SD1111 DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$1.137	$1.14
200	$0.440	$88.00
500	$0.425	$212.50
1000	$0.418	$418.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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2SD1111 Details

The 2SD1111 is a silicon NPN transistor designed for general-purpose amplifier and switching applications. This transistor offers high current and voltage ratings, making it suitable for a variety of electronic circuits. It is commonly used in audio amplifiers, power supplies, and voltage regulators.

Pinout

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

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

Key Features

High Current Rating: Capable of handling high currents for power applications.
High Voltage Rating: Withstands high voltages for various circuit requirements.
Reliable Performance: Provides stable and reliable performance in different operating conditions.
Low Saturation Voltage: Ensures low power dissipation and efficient operation.
Wide Operating Frequency: Suitable for a wide range of frequency applications.

Application

Audio Amplifiers: Ideal for use in audio amplifier circuits for signal amplification.
Power Supplies: Used in power supply circuits to regulate and control voltage levels.
Switching Circuits: Suitable for switching applications due to its high current handling capability.

Where to Use

The 2SD1111 transistor is commonly used in electronic circuits that require amplification or switching functions. It is recommended for applications where high current and voltage requirements are essential for optimal performance.

How to Use

Integrate the 2SD1111 into your circuit by connecting the Emitter, Base, and Collector pins according to the circuit design. Ensure proper biasing and heat dissipation for reliable operation. Refer to the datasheet for detailed usage instructions and application notes.

Application Circuit

The application circuit diagram for the 2SD1111 demonstrates how to incorporate the transistor into your electronic design. It includes connections for biasing, signal input, and output, ensuring proper functionality and performance.

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

Equivalents

2N3055: A similar NPN transistor with comparable current and voltage ratings.
BD139: An alternative NPN transistor suitable for general-purpose applications.

Complementary

The 2SD1111 can be complemented by the 2SB826 PNP transistor in amplifier or switching circuits to create a balanced signal path and enhance overall performance.

Ensure compatibility between complementary transistors for optimal circuit operation.

Frequently Asked Questions

Q: What is the maximum voltage rating of the 2SD1111?

A: The 2SD1111 has a maximum voltage rating of [Insert Value]V. Refer to the datasheet for specific operating conditions.

Q: Can the 2SD1111 be used in audio amplifier circuits?

A: Yes, the 2SD1111 is commonly used in audio amplifier circuits due to its high current handling capability and reliable performance.

Specifications

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

Packaging !	Bulk	Part Status !	Active
Transistor Type	NPN - Darlington	Current - Collector (Ic) (Max)	700 mA
Voltage - Collector Emitter Breakdown (Max)	50 V	Vce Saturation (Max) @ Ib, Ic	1.2V @ 100µA, 100mA
Current - Collector Cutoff (Max)	100nA (ICBO)	DC Current Gain (hFE) (Min) @ Ic, Vce	5000 @ 50mA, 2V
Power - Max	600 mW	Frequency - Transition	200MHz
Operating Temperature !	150°C (TJ)	Mounting Type	Through Hole
Package / Case	TO-226-3, TO-92-3 (TO-226AA)	Supplier Device Package	3-NP

FAQs

What is 2SD1111?

The 2SD1111 is a high-voltage, high-speed switching transistor designed for general-purpose amplifier and switching applications. It is commonly used in audio amplifiers, power supply circuits, and motor control circuits.

How Does 2SD1111 Work?

The 2SD1111 works as a transistor that can amplify and switch electronic signals. It is capable of handling high-voltage and high-speed operation, making it suitable for applications requiring fast switching and high power amplification.

How Many Pins does 2SD1111 have and What are the Functions of the Pinout Configuration?

The 2SD1111 is housed in a TO-220 package with three pins. The pinout configuration includes:

Collector (C): This pin is where the output or the power supply is connected in a circuit.
Base (B): The input control signal is applied to this pin to control the flow of current between the collector and emitter.
Emitter (E): This pin is where the current exits the transistor into the circuit.

What are the Pros and Cons of 2SD1111?

Pros:

High Voltage Capability: Able to handle high voltages, making it suitable for high-power applications.
High-Speed Switching: Capable of fast switching speeds, ideal for applications requiring rapid on/off transitions.
General Purpose: Versatile transistor for various amplifier and switching applications.

Cons:

Heat Dissipation: May require a heatsink for adequate heat dissipation in high-power applications.
Complex Drive Circuit: Requires a proper drive circuit for efficient and safe operation.