Are the 2n2907 transistors from this kit pnp or npn? i believe 2907 are pnp, yet the online product description and the label from the kit say npn.

You're correct, the 2n2907s in this kit test as high-gain PNP, although the kit mislabels them as NPN.

For the 2n3904 npn 60v 0.2a - this would be 12 watts, why does the spec say 0.625 watts? i need to power a circuit drawing 5volts but at 0.3a

The listings on of 60V and 0.2A are maximums that you do not exceed and must be ratio'd so as not to exceed 0.625W (also a maximum). Bottom line, 0.3A exceeds the collector max; therefore, this transistor should not be used for a continuous 0.3A current. Find another transistor that meets you specs.

What is the amplifier factor or current gain?

This is a transistor assortment, lots of different gains and current handling properties. Try looking at the spec sheet for each transistor listed for their specifications - it is out there, just gotta look.

Why is 2n2907 labeled on the box, and described intermittently here, as an npn transistor when it's pnp by industry standard?

Purely and simply, this is a mis-label (a mistake) by the company labeling these transistor. When I got my box of transistors I re-labeled them with the correct data.

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BOJACK 10 Values 250 Pcs A1015 BC327 BC337 C1815 S8050 S8550 2N2222 2N2907 2N3904 2N3906 PNP NPN Power General Purpose Transistors Assortment Kit

BOJACK 10 Values 250 Pcs A1015 BC327 BC337 C1815 S8050 S8550 2N2222 2N2907 2N3904 2N3906 PNP NPN Power General Purpose Transistors Assortment Kit

Product ID: 145333358

⚡10 versatile transistor models included

🔋250 pcs total for extensive projects

🛠️Re-sealable rugged storage case

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Description

⚡ Power your projects with the ultimate transistor arsenal!

TOP 10 ESSENTIAL MODELS - Includes industry favorites like 2N2222 and BC337 for reliable performance.
PRO GRADE QUALITY TRUST - Rated 4.7 stars by 796 engineers—join the community powering innovation.
DURABLE ORGANIZED STORAGE - Keep your components safe and accessible in a rugged, re-sealable case.
DUAL PNP NPN COMPATIBILITY - Seamlessly switch between transistor types for ultimate circuit flexibility.
MASSIVE 250 PIECE POWER PACK - Never run out mid-project with 25 units of each top transistor model.

The BOJACK 10 Values 250 Pcs Transistor Kit offers a comprehensive selection of 10 essential PNP and NPN transistor models, each supplied in 25-piece quantities. Packaged in a durable, re-sealable plastic case, this kit is designed for professionals and hobbyists seeking reliable, versatile components for diverse electronic projects. Highly rated and trusted, it’s a must-have for any serious circuit builder.

Specifications

ASIN	B07T61SY9Y
Best Sellers Rank	#9,271 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in BJT Transistors
Brand Name	BOJACK
Customer Reviews	4.7 4.7 out of 5 stars (796)
Manufacturer	BOJACK
Material Type	Plastic
Model	BJ-TR10
Part Number	BJ-TR10
UPC	768894138925

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