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Description
Mean Well - 50W Single Ouput DC - DC Converter - 12VDCRobust & Reliable Power Conversion for Demanding Applications Experience stable and efficient power conversion with the Mean Well SD 50B 12, a high performance 50W enclosed DC DC converter. Designed for industrial grade applications, this unit reliably steps down a wide 19 36V DC input to a steady 12V DC output, making it perfect for battery backup systems, transportation vehicles, and industrial automation. Its robust metal chassis and built in EMI
Robust & Reliable Power Conversion for Demanding Applications
Experience stable and efficient power conversion with the Mean Well SD-50B-12, a high-performance 50W enclosed DC-DC converter. Designed for industrial-grade applications, this unit reliably steps down a wide 19-36V DC input to a steady 12V DC output, making it perfect for battery backup systems, transportation vehicles, and industrial automation. Its robust metal chassis and built-in EMI filter ensure low noise and dependable operation in challenging environments.
Core Features & Benefits
- Wide 2:1 Input Range: Accepts an input voltage from 19V to 36V DC, providing flexibility for various power sources.
- Stable 12V Output: Delivers a regulated 12V DC output with a 4.2A current capacity, ideal for sensitive electronics.
- Comprehensive Protection: Features integrated protection against short circuits, overload (105-150%), and over-voltage, safeguarding your connected devices.
- High-Integrity Isolation: 1500VAC I/O isolation enhances safety by preventing ground loops and reducing electrical noise.
- Built for Reliability: With a fixed switching frequency at 83kHz and a 100% full load burn-in test, this converter is built for long-term, maintenance-free operation.
- Certified & Compliant: Meets rigorous standards for safety and electromagnetic compatibility, ensuring seamless integration.
Technical Specifications
| Output Specifications | |
|---|---|
| DC Voltage | 12V |
| Rated Current | 4.2A |
| Rated Power | 50.4W |
| Ripple & Noise (max.) | 100mVp-p |
| Voltage Adj. Range | 11.4 ~ 13.2V |
| Input Specifications | |
| Voltage Range | 19 ~ 36VDC |
| Efficiency (Typ.) | 75% |
| Protection | |
| Overload | 105 ~ 150% rated output power. Hiccup mode, auto-recovers. |
| Over Voltage | 13.8 ~ 16.2V. Shut down o/p voltage, re-power on to recover. |
| Short Circuit | Hiccup mode, recovers automatically after fault condition is removed. |
| Environment & Physical | |
| Operating Temperature | -10 ~ +60°C (Refer to derating curve) |
| Dimensions (L x W x H) | 159 x 97 x 38 mm |
| Weight | 0.43 kg |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Good buy Pillowcases
Color: 08 - Sage Green, Size: King (20" X 36")
I bought these Bedsure king-size pillowcases from Amazon and overall I’m very happy with them. The first thing I noticed was how incredibly soft and smooth the fabric feels. They almost feel silky, which makes them very comfortable to sleep on. When you lay your head down, the material feels cool and gentle on the skin, which I really like.
I also appreciate the zipper closure. It keeps the pillow securely inside the case and makes everything look neat and tidy on the bed. The zipper is hidden well and doesn’t feel bulky or uncomfortable.
The only small downside is that the pillowcases are so smooth that the pillows can sometimes slide around or even slip off the bed a little. However, that’s really just because the material is so silky.
Overall, I would still recommend these pillowcases. They are soft, comfortable, and feel like a nice upgrade compared to regular pillowcases.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
★★★★★ 5
Very nice pillowcases
Color: 06 - Beige, Size: Standard (20" X 26")
These pillowcases are really nice. They're soft and wash well. I really like the pocket on the end. It makes your pillows look nice and neat. The price is good too.
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Reviewed in the United States on May 31, 2026
★★★★★ 3
Love the sheets but GOSH THEY STINK
Color: 19 - Forest Green, Size: Queen (20" X 30")
I have the dark green sheets and bought these for extra cases to match. I would give them 5 stars if it weren’t for the fact that they smell absolutely horrible. I am so surprised after reading reviews that more people don’t mention it?! Maybe it’s more prominent in darker colors but I have washed these now 3 different times even with scent beads and still hate the smell. I wish I could accurately describe what it smells like— it’s just not good and for some reason, body heat only exacerbates it and makes the smell even worse and I wake up feeling like a smell like the sheets… which isn’t a good thing.
Besides that, I do really enjoy them. They feel great on your skin and I love the color. I wish the smell didn’t kill them so badly for me ☹️
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Reviewed in the United States on June 9, 2026
★★★★★ 5
Comfy soft pillow covers
Color: 02 - White, Size: Queen (20" X 30"), Color: 02 - White, Size: Queen (20" X 30")
Absolutely love these pillow cases! I bought 2 sets. After I received them & washed & dried them they did remain wrinkly. I just went ahead and put them on my pillows & the wrinkles went away. I continue to love the feel, coolness & comfort. Will definitely buy more.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Great soft pillow cases
Color: 03 - Navy, Size: Standard (20" X 26")
Pillow cases are beautiful and soft, great quality. I had to return them because standard were too small. I am going to order queen instead.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
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