Description
Product Overview
The BOJACK 2N3904 NPN transistor is a versatile, general‑purpose BJT that meets the demanding needs of both hobbyists and professional engineers. With a maximum collector‑emitter voltage of 60 V, a continuous current rating of 0.2 A, and a transition frequency reaching 300 MHz, this device offers a balanced combination of voltage handling, current capability, and high‑speed performance. Packaged in a rugged, resealable plastic case containing 200 individual transistors, the product ensures easy storage, quick access, and protection against static discharge. The transistors are housed in a TO‑92 style package, a widely recognized form factor that fits standard breadboards and PCB footprints, simplifying integration into a wide range of circuits ranging from simple switching applications to more complex analog amplification stages.
Usage
These transistors excel in environments where reliability and repeatability are paramount. Typical use cases include low‑power amplification in audio circuits, switching regulators for power management, signal conditioning in sensor interfaces, and as building blocks in educational laboratory experiments. The 60 V rating makes them suitable for small‑signal applications that operate below typical automotive or industrial voltage levels, while the 300 MHz frequency response supports modern high‑speed digital logic interfacing and RF front‑end prototypes. Engineers designing portable devices, hobbyists constructing Arduino‑compatible modules, and educators preparing lab kits will find the 200‑piece quantity especially convenient for batch testing, inventory stocking, and rapid prototyping.
Why Choose Us
BOJACK is committed to delivering components that meet stringent quality standards. Each transistor undergoes thorough testing for leakage current, gain consistency, and breakdown voltage to ensure that the specifications listed are reliably met in every unit. The resealable storage case not only protects the devices from moisture and static but also provides a clear, organized layout that reduces the time spent searching for individual parts. Our customer support team is available to assist with technical inquiries, offering guidance on optimal circuit design, troubleshooting, and selection of complementary components. With a proven track record reflected in a 4.8‑star rating from over 60 verified purchasers, BOJACK provides confidence that the product will perform as expected in critical applications.
Key Features
- Reliable 60 V voltage rating ensures safe operation in low‑power circuits.
- 0.2 A current capability provides ample drive for switching and amplification tasks.
- 300 MHz transition frequency supports high‑speed digital and RF prototyping.
- Durable resealable case of 200 units simplifies inventory management and protects against static.
- Responsive technical support and warranty give peace of mind for long‑term projects.
FAQ
What is the maximum power dissipation for each transistor?
Each 2N3904 transistor can dissipate up to 0.625 W when properly heat‑sunk, which is suitable for most low‑power applications.
Can these transistors be used in high‑frequency RF circuits?
Yes, the 300 MHz transition frequency makes them appropriate for many RF front‑end designs, though impedance matching and layout considerations are still important for optimal performance.
Is the resealable case antistatic?
The plastic case is designed to reduce static buildup, and it includes a built‑in antistatic liner to further protect the sensitive semiconductor devices.
Do you offer bulk pricing for larger orders?
BOJACK provides tiered pricing for bulk purchases; please contact our sales team for a customized quote based on your required quantity.
What is the typical hFE (gain) range for these transistors?
The 2N3904 devices generally exhibit a DC current gain (hFE) between 100 and 300, depending on the operating current and temperature conditions.







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