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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
4.8 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
A favorite for my small destroyers
Color: Monsieur Acorn - Large, Color: Monsieur Acorn - Large
My small destroyer dogs LOVE these toys and are always surprised to find another toy after the first and second violent de-stuffing. Definitely a supervision toy for safety, but my terriers love doing their thing when these come out and they last much longer than I had anticipated. Color, design and value all as described, however I literally do not remember if it did squeak because the squeaker would be the first thing gone
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Reviewed in the United States on March 25, 2026
★★★★★ 1
Doesn’t hold up at all.
Color: Hare - Large, Color: Hare - Large
Received this today, and it lasted less than an hour before it had to be taken away to prevent it being eaten.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
It looks like a Totoro
Color: Hare - Large
Great toy ! Pibble loves it! an it looks just like a Totoro which is huge plus at our house. These are very durable and once de gloved the body will last a very long time if your dog isn’t a big chewer.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Very fun toy at a great price
Color: Monsieur Acorn - Large
My dog (an American Staffordshire Terrier) lovessss to chew and destroy things! We have literally gotten three of these because she loves them so much, and they last, too!! You get the first toy, which my dog rips open. I’m not sure exactly how long it takes for her to destroy it, maybe a few days to a week. Then another little toy (with a sad face lol) is revealed. She highly enjoys this one, as well! Finally, she rips the fabric off that and then a blue, spiky ball is revealed. She lovesss to chew on it and I think the bumps are a nice texture for her mouth. She is quite a strong chewer and the ball lasts a long time!! No toy lasts forever and I have found under dog toys are quite expensive and that’s no guarantee of how long it will actually last. But I am perfectly fine with spending ~$11 every once in a while for these toys because I know she loves them, and they are not immediately destroyed.
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Reviewed in the United States on July 25, 2020
★★★★★ 5
Would happily purchase again.
Color: Hedgehog
My powerchewer of a dog destroys plushies in 10 minutes and most other 'tough chew' toys don't last more than a day or two - at most. But he loves his hedgehog and hasn't managed to destroy it! Sure, it has a plethora of teeth marks, but it's in one piece and he hasn't managed to bite off any chunks (I was worried about the hedgies nose 😂). It stands up to his teeth and allows him to satisfy his need to gnaw & chew, safely.
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Reviewed in the United States on March 23, 2026
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