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Description
STMICROELECTRONICS MJE340 Bipolar (BJT) Single Transistor, NPN, 300 V, 20.8 W, 500 mA, 240 hFEThe MJE340 is a 300V Silicon Planar NPN Complementary Power Transistor intended for use in medium power linear and switching applications. Fast switching times and very low saturation voltage resulting in reduced switching and conduction losses. Complementary to the MJE350 Well controlled hFE parameter for increased reliability Applications Industrial Product details Power Dissipation Pd 20. 8W DC Collector Current 500mA Collector Emitter Voltage
The MJE340 is a 300V Silicon Planar NPN Complementary Power Transistor intended for use in medium power linear and switching applications. Fast switching times and very low saturation voltage resulting in reduced switching and conduction losses.
- Complementary to the MJE350
- Well-controlled hFE parameter for increased reliability
Applications
Industrial
Product details
| Power Dissipation Pd | 20.8W |
| DC Collector Current | 500mA |
| Collector Emitter Voltage V(br)ceo | 300V |
| Transition Frequency ft | - |
| Operating Temperature Max | 150°C |
| Transistor Polarity | NPN |
| DC Current Gain hFE | 240hFE |
| No. of Pins | 3Pins |
| Product Range | - |
| Automotive Qualification Standard | - |
| Transistor Case Style | TO-225AA |
| MSL | - |
Other details
| Brand | STMICROELECTRONICS |
| Part Number | MJE340 |
| Quantity | Each |
| Technical Data Sheet EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
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4.2 ★★★★★
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Product Reviews
★★★★★ 3
Not as tall as anticipated
Color: Black, Size: Wheel-6 Panel
Definitely not 6 feet tall, more like 5 1/2. Very sturdy and the fabric is thick. Works well for what we're using it for.
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Reviewed in the United States on November 30, 2025
★★★★★ 5
Easy to put together
Color: Grey, Size: Wheel-6 Panel
Love them
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Reviewed in the United States on December 17, 2025
★★★★★ 4
Smooth, Stable, and Perfect for Flexible Spaces
Size: 88''W-4 Panel, Color: Grey, Size: 88''W-4 Panel, Color: Grey
This room divider is incredibly easy to move thanks to its industrial-grade silent casters. It glides smoothly across different floor types with just one hand and without any noise, while the built-in wheel locks keep it firmly in place once positioned, no slipping or unwanted movement.
The base with reinforced steel feet adds impressive stability, preventing wobbling even in busy or high-traffic areas. I also love the foldable design, which makes storage effortless when it’s not in use. It folds down compactly and fits neatly into small spaces.
I gave only 4 stars because I'm not crazy about the color of the fabric. Otherwise this is a very functional way to separate areas.
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Reviewed in the United States on January 7, 2026
★★★★★ 5
easy to put together, stable and blocks out unwanted eyes.
Size: 88''W-4 Panel, Color: Grey
If you live in a high rise building, or where there is lots of foot traffic and can see in your windows, this is a must have.
It's portable, can fold down one or two walls and easy to move around. Put together once, and block out light and eyes while tall enough to see over. You can fold it up along the wall, and use it to block out the blinds or light when using a projector so that it's darker.
You can use it to partician the room if you share one, and separate your pile of junk from your room so you don't look at it, can take quite a bit of towel weight and clothes and doesn't tip over.
Sturdy bottom metal and easy to put together.
I got the grey one, and glad I did. I use it everyday and is part of my room decor.
I love it, and after using it for a few months it's quite durable.
The quality is there for sure. A tad pricey, but worth it.
Must have for a private person.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Well made dividers.
Size: 88''W-4 Panel, Color: Grey
Very durable and stable. Once positioned, they stay upright and firm and don't wobble around. Good materials on both the panels and the frame that supports it. Great for any partitioning needs and a fair price for the quality you receive. Highly recommended.
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Reviewed in the United States on November 28, 2025