JANSH2N2221AUBC-Transistor Overview
The JANSH2N2221AUBC is a robust NPN bipolar junction transistor (BJT) widely utilized in general-purpose amplification and switching applications. Designed to handle moderate current and voltage ratings, it offers reliable performance for industrial and electronic circuit designs requiring a dependable switching element. Featuring a TO-92 package, this transistor supports efficient thermal management and ease of integration into through-hole PCB assemblies. Suitable for engineers and sourcing specialists, it provides a balance of gain, switching speed, and durability, making it an essential component in control systems and signal processing. For detailed specifications and sourcing options, visit IC Manufacturer.
JANSH2N2221AUBC-Transistor Technical Specifications
| Parameter | Specification |
|---|---|
| Transistor Type | NPN Bipolar Junction Transistor |
| Collector-Emitter Voltage (Vce) | 40 V |
| Collector Current (Ic) | 0.8 A (continuous) |
| Power Dissipation (Pd) | 625 mW |
| DC Current Gain (hFE) | 100 ?C 300 (at Ic = 150 mA) |
| Transition Frequency (fT) | 250 MHz (typical) |
| Package Type | TO-92 |
| Operating Temperature Range | -55??C to +150??C |
| Base-Emitter Voltage (Vbe) | 5 V (max) |
JANSH2N2221AUBC-Transistor Key Features
- High Current Handling: Supports collector currents up to 0.8 A, enabling reliable operation in moderate power switching circuits.
- Wide Voltage Range: Collector-emitter voltage rating of 40 V accommodates a variety of low to medium voltage applications, enhancing design flexibility.
- Fast Switching Speed: With a transition frequency around 250 MHz, the transistor is suitable for high-speed switching and amplifier circuits.
- Thermal Stability: Operating temperature range from -55??C to +150??C ensures performance reliability in harsh environments.
Typical Applications
- General-purpose amplification in audio and signal processing circuits, where consistent gain and linearity are required.
- Switching loads such as relays, LEDs, and small motors in industrial control systems.
- Interface stages in microcontroller-based projects for driving external components with moderate current demands.
- Low noise signal amplification in sensor circuits and instrumentation devices.
JANSH2N2221AUBC-Transistor Advantages vs Typical Alternatives
This transistor offers a balanced mix of current capacity, voltage tolerance, and switching speed that outperforms many standard low-power BJTs. Its robust thermal range and reliable gain characteristics ensure stable operation under varying environmental conditions. Compared to alternatives, it provides enhanced power dissipation efficiency and better integration into through-hole PCB designs, making it a preferred choice for engineers seeking dependable performance in industrial and consumer electronics.
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JANSH2N2221AUBC-Transistor Brand Info
The JANSH2N2221AUBC belongs to a family of transistors originally standardized by JEDEC and widely produced by various semiconductor manufacturers. This particular variant is manufactured under strict quality standards, ensuring compliance with industrial-grade specifications. The transistor is commonly available from multiple suppliers specializing in discrete semiconductors, known for their reliable sourcing and consistent batch quality. Its design follows the classic 2N2221 transistor lineage, known for decades of proven performance in switching and amplification roles across diverse electronic systems.
FAQ
What is the maximum collector current this transistor can handle?
The transistor supports a continuous collector current of up to 0.8 amperes, making it suitable for switching and amplification tasks requiring moderate current levels without compromising reliability.
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Can this transistor be used in high-frequency applications?
Yes, with a typical transition frequency of approximately 250 MHz, it is capable of handling moderate to high-frequency switching and amplification, suitable for many signal processing applications.
What is the package type and why is it important?
This device is housed in a TO-92 package, which promotes ease of use in through-hole PCB designs and provides sufficient thermal dissipation for its power rating






