JANSD2N2221AUA-Transistor Overview
The JANSD2N2221AUA transistor is a robust NPN bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications in industrial electronics. Featuring a maximum collector current rating suitable for moderate power applications, it delivers reliable performance in both low and medium frequency circuits. Its versatility makes it ideal for use in signal amplification, driver stages, and switching devices across a broad range of industrial and commercial electronic systems. This transistor is produced with quality standards that meet demanding engineering requirements, offering dependable operation and ease of integration for system designers. For further details, visit IC Manufacturer.
JANSD2N2221AUA-Transistor Technical Specifications
| Parameter | Specification |
|---|---|
| Transistor Type | NPN Bipolar Junction Transistor (BJT) |
| Collector-Emitter Voltage (VCEO) | 40 V |
| Collector Current (IC) | 800 mA |
| Power Dissipation (Ptot) | 625 mW |
| DC Current Gain (hFE) | 100 to 300 |
| Transition Frequency (fT) | 300 MHz |
| Base-Emitter Voltage (VBE) | 1.2 V max |
| Package Type | TO-92 |
| Operating Temperature Range | -55??C to +150??C |
JANSD2N2221AUA-Transistor Key Features
- High Gain Performance: Provides a DC current gain range of 100 to 300, enabling efficient signal amplification with minimal distortion.
- Moderate Power Handling: Supports collector current up to 800 mA and power dissipation of 625 mW, suitable for switching and amplification in various circuits.
- Wide Frequency Response: Transition frequency of 300 MHz allows usage in medium-frequency applications, enhancing circuit versatility.
- Temperature Robustness: Operational from -55??C to +150??C, ensuring reliability in harsh and industrial temperature environments.
- Compact TO-92 Package: Facilitates easy PCB mounting and integration in space-constrained designs.
Typical Applications
- General-purpose switching circuits in industrial control systems, where reliable current handling and switching speed are essential for device operation and safety.
- Signal amplification stages in audio and low-frequency analog circuits, providing clean gain for sensor and measurement devices.
- Driver transistor for relay control and LED switching, enabling efficient interface between low-level control signals and higher power loads.
- Oscillator and timer circuits in embedded systems, benefiting from the transistor??s frequency response and stable gain characteristics.
JANSD2N2221AUA-Transistor Advantages vs Typical Alternatives
This transistor offers a balanced combination of gain, power handling, and frequency response that often surpasses generic alternatives in similar TO-92 packages. Its robust current rating and broad temperature range make it particularly advantageous for industrial applications demanding reliability and consistent performance. Additionally, the high transition frequency supports improved switching speed and signal integrity in both analog and digital circuits, enhancing overall system efficiency.
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JANSD2N2221AUA-Transistor Brand Info
The JANSD2N2221AUA transistor is a product variant derived from the widely recognized 2N2221 transistor family, originally standardized by JEDEC and produced by multiple semiconductor manufacturers. This specific version is typically sourced from established IC manufacturers that ensure compliance with industry standards for quality and performance. Known for its consistent electrical characteristics and reliability, this transistor is widely adopted across industrial electronics sectors where dependable switching and amplification are required. Its longstanding presence in the market underscores its suitability for engineers seeking proven component solutions.
FAQ
What is the maximum collector current rating of this transistor?
The maximum collector current is rated at 800 mA. This allows the transistor to handle moderate power loads suitable for many switching and amplification applications without risk of damage under specified operating conditions.
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Can this transistor be used in high-frequency circuits?
Yes, with a transition frequency (fT






