DGD21904S14-13

Product Overview

Category: Electronic Component
Use: Signal Amplification
Characteristics: High Gain, Low Noise
Package: SOT-23
Essence: NPN Transistor
Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Maximum Collector Current: 100mA
• Maximum Collector-Emitter Voltage: 40V
• Maximum Power Dissipation: 200mW
• Transition Frequency: 250MHz
• Collector-Base Voltage: 60V
• Emitter-Base Voltage: 6V
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The DGD21904S14-13 transistor has three pins:

1. Collector (C): This pin is connected to the positive terminal of the power supply.
2. Base (B): This pin controls the flow of current between the collector and emitter.
3. Emitter (E): This pin is connected to the negative terminal of the power supply.

Functional Features

• High gain amplification of weak signals.
• Low noise operation for improved signal quality.
• Suitable for small-signal applications.
• Compact SOT-23 package for space-constrained designs.
• Wide operating temperature range for versatile usage.

Advantages and Disadvantages

Advantages: - High gain allows for amplification of weak signals. - Low noise operation ensures signal integrity. - Small package size enables integration in compact designs. - Wide operating temperature range for various environments.

Disadvantages: - Limited maximum collector current may restrict certain applications. - Lower power dissipation compared to other transistors. - Transition frequency may limit high-frequency applications.

Working Principles

The DGD21904S14-13 is an NPN transistor, which means it amplifies signals by controlling the flow of current between the collector and emitter. When a small current is applied to the base pin, it allows a larger current to flow from the collector to the emitter. This amplification process enables the transistor to boost weak signals.

Detailed Application Field Plans

The DGD21904S14-13 transistor finds applications in various fields, including:

1. Audio Amplification: It can be used in audio amplifiers to enhance weak audio signals.
2. Sensor Interfaces: The transistor can amplify signals from sensors such as temperature or light sensors.
3. Radio Frequency (RF) Circuits: It is suitable for RF circuits requiring low noise and moderate frequency amplification.
4. Communication Systems: The transistor can be utilized in communication systems for signal amplification and conditioning.

Detailed and Complete Alternative Models

1. BC547: A widely used NPN transistor with similar characteristics.
2. 2N3904: Another popular NPN transistor suitable for small-signal amplification.
3. PN2222: NPN transistor with higher maximum collector current and power dissipation.

These alternative models offer similar functionality and can be considered as substitutes for the DGD21904S14-13 transistor.

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