HF81GS-Z

Product Overview

• Category: Electronic Component
• Use: Signal Amplification
• Characteristics: High Gain, Low Noise, Wide Frequency Range
• Package: TO-92
• Essence: Bipolar Junction Transistor (BJT)
• Packaging/Quantity: Bulk Packaging, 1000 units per pack

Specifications

• Type: NPN
• Collector Current: 100mA
• Collector-Emitter Voltage: 45V
• Emitter-Base Voltage: 6V
• Power Dissipation: 500mW
• Transition Frequency: 300MHz
• Noise Figure: 2dB
• Operating Temperature: -55°C to +150°C

Detailed Pin Configuration

The HF81GS-Z transistor has three pins:

1. Collector (C): This pin is used to connect the transistor to the collector circuit.
2. Base (B): The base pin controls the flow of current through the transistor.
3. Emitter (E): The emitter pin allows the current to flow out of the transistor.

Functional Features

• High gain amplification of weak signals.
• Low noise performance for improved signal quality.
• Wide frequency range for versatile applications.
• Compact TO-92 package for easy integration into circuits.
• Suitable for small-signal amplification in various electronic devices.

Advantages and Disadvantages

Advantages

• Excellent amplification capabilities.
• Low noise figure ensures high-quality signal amplification.
• Wide operating temperature range allows for use in extreme conditions.
• Small form factor enables space-saving designs.
• Cost-effective solution for signal amplification needs.

Disadvantages

• Limited power handling capacity.
• Not suitable for high-power applications.
• Requires careful handling due to its small size.

Working Principles

The HF81GS-Z is a bipolar junction transistor (BJT) that operates based on the principles of current amplification. When a small current flows into the base pin, it controls a larger current flow between the collector and emitter pins. This amplification allows weak signals to be boosted to usable levels.

Detailed Application Field Plans

The HF81GS-Z transistor finds applications in various electronic devices and circuits, including:

1. Audio Amplifiers: Enhancing audio signals for improved sound quality.
2. Radio Frequency (RF) Circuits: Amplifying weak RF signals for better reception.
3. Oscillators: Generating stable oscillations for clock circuits.
4. Sensor Interfaces: Amplifying sensor signals for accurate measurements.
5. Communication Systems: Boosting signals in wireless communication devices.

Detailed and Complete Alternative Models

• BC547
• 2N3904
• PN2222
• MPSA18
• 2SC945

These alternative models offer similar characteristics and can be used as substitutes for the HF81GS-Z transistor in various applications.

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