JANSH2N2221AUB/TR Overview
The JANSH2N2221AUB/TR is a robust NPN bipolar junction transistor designed for general-purpose amplification and switching applications. Offering a maximum collector current of 800mA and a collector-emitter voltage rating of 40V, this device supports reliable operation in medium power circuits. Its high current gain and fast switching capabilities make it suitable for industrial control, signal amplification, and driver stages. Packaged in a compact SOT-23 form factor, it facilitates efficient PCB layout and thermal management. This transistor aligns with industry standards for performance and durability as detailed on IC Manufacturer.
JANSH2N2221AUB/TR Key Features
- High collector current capacity: Supports up to 800mA, enabling effective switching and amplification in medium-power circuits.
- Collector-emitter voltage of 40V: Provides sufficient voltage tolerance for a wide range of industrial and consumer electronics applications.
- Compact SOT-23 package: Optimizes PCB space and enhances heat dissipation for improved reliability in dense board designs.
- Fast switching speed: Minimizes switching losses and supports high-frequency operation, critical for efficient power management and signal processing.
- Stable DC current gain (hFE): Ensures consistent amplification performance across operational conditions.
JANSH2N2221AUB/TR Technical Specifications
| Parameter | Specification |
|---|---|
| Transistor Type | NPN Bipolar Junction Transistor |
| 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 to 300 (typical) |
| Transition Frequency (fT) | 300 MHz (typical) |
| Package Type | SOT-23 Surface Mount |
JANSH2N2221AUB/TR Advantages vs Typical Alternatives
This transistor offers a balanced combination of moderate voltage rating and high current handling, making it advantageous over typical low-power alternatives. Its small SOT-23 package enables dense PCB integration while maintaining thermal performance. The fast switching speed and stable gain provide enhanced efficiency and reliability in control and amplification circuits, outperforming many bulkier or slower switching devices.
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Typical Applications
- General-purpose switching and amplification in industrial control systems, where reliable medium power handling is essential for driving relays, LEDs, and small motors.
- Signal amplification stages in communication equipment requiring consistent gain and low noise at moderate frequencies.
- Driver transistor for relay and solenoid control, benefiting from its fast switching capability and adequate current capacity.
- Power management circuits in consumer electronics, supporting voltage regulation and load switching functions.
JANSH2N2221AUB/TR Brand Info
The JANSH2N2221AUB/TR is a product offered by a leading semiconductor manufacturer known for high-quality bipolar transistors. This device is engineered to meet stringent industrial standards, ensuring consistent performance and reliability. Its proven design supports a wide range of electronic applications, making it a trusted choice among engineers and sourcing specialists in the electronics industry.
FAQ
What is the maximum collector current rating of this transistor?
The maximum collector current for this device is 800mA, allowing it to handle moderate power loads typical in switching and amplification applications.
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Can this transistor be used in high-frequency circuits?
Yes, with a typical transition frequency (fT) of 300 MHz, it is suitable for medium to high-frequency applications such as signal amplification and fast switching circuits.
What are the voltage limitations for this transistor?
The transistor supports a collector-emitter voltage of up to 40V, collector-base voltage of 75V, and emitter-base voltage of 6V, making it appropriate for a wide range of industrial and consumer electronics.
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What package type does this transistor come in, and why is it beneficial?
It is housed in a SOT-23 surface-mount package, which offers a compact footprint for space-saving PCB designs and efficient thermal dissipation to maintain device reliability.
Is this device suitable for power management applications?
Yes, the transistor??s current handling capability and fast switching speed make it well-suited for power management circuits including load switching and voltage regulation tasks.







