JANSM2N2221AUB-Transistor Overview
The JANSM2N2221AUB-Transistor is a high-performance NPN bipolar junction transistor designed for reliable switching and amplification in industrial electronics. Featuring robust electrical characteristics and a TO-92 package, it is optimized for moderate current loads and fast switching speeds. This transistor is widely used in control circuits, signal amplification, and driver stages, delivering consistent performance in demanding environments. Engineers and sourcing specialists can rely on its stable gain and voltage ratings for efficient circuit integration. For detailed specifications and procurement, visit IC Manufacturer.
JANSM2N2221AUB-Transistor Technical Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Transistor Type | NPN Bipolar Junction | – |
| Collector-Emitter Voltage (VCEO) | 40 | V |
| Collector-Base Voltage (VCBO) | 75 | V |
| Emitter-Base Voltage (VEBO) | 6 | V |
| Collector Current (IC) | 800 | mA |
| Power Dissipation (Ptot) | 625 | mW |
| DC Current Gain (hFE) | 100?C300 | – |
| Transition Frequency (fT) | 250 | MHz |
| Package | TO-92 | – |
JANSM2N2221AUB-Transistor Key Features
- High collector current capacity: Supports up to 800mA, enabling robust switching and amplification in medium-power applications.
- Wide voltage ratings: With a collector-emitter voltage rating of 40V, it accommodates various industrial voltage requirements safely.
- Consistent gain range: DC current gain between 100 and 300 ensures reliable signal amplification and predictable performance across different circuits.
- Fast switching speed: Transition frequency of 250MHz supports efficient high-frequency operation, beneficial for switching regulators and signal processing.
- Compact TO-92 package: Simplifies PCB layout and thermal management in space-constrained industrial designs.
Typical Applications
- General-purpose switching: Ideal for controlling loads such as relays and LEDs in industrial control systems requiring reliable on/off switching action.
- Signal amplification: Used in audio preamplifiers and low-noise amplification stages to boost weak signals without distortion.
- Driver circuits: Suitable for driving medium-power devices including small motors and solenoids in automation and robotics.
- Oscillator circuits: Supports high-frequency oscillation for timing, waveform generation, and communication modules in embedded systems.
JANSM2N2221AUB-Transistor Advantages vs Typical Alternatives
This transistor offers a balanced combination of moderate voltage and current handling with high gain and switching speed, outperforming many generic low-power transistors. Its robust 800mA collector current rating and 40V voltage tolerance provide enhanced reliability under industrial loads. The stable gain range ensures predictable amplification, minimizing design iterations. Packaged in a compact TO-92 format, it simplifies integration while maintaining thermal efficiency compared to larger or less efficient alternatives.
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JANSM2N2221AUB-Transistor Brand Info
The JANSM2N2221AUB is a military-grade or industrial version of the widely recognized 2N2221 transistor, often manufactured by reputable semiconductor producers specializing in discrete components. This variant complies with stringent quality and reliability standards, making it suitable for aerospace, defense, and industrial applications. The brand behind this transistor emphasizes durability and consistent performance in harsh environments





