Pay in installments of $149.38 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 22 - Sep 27
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
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
4.5 ★★★★★
Based on 11 reviews
Sort
Product Reviews
★★★★★ 5
Great fit!
Size: Large, Color: Beige
Most comfy undies THANK YOU!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2025
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
★★★★★ 5
Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
So soft, comfortable and cool. I'm pregnant and I've gained weight in my legs. I love wearing dresses but my thighs were rubbing together too much. These are perfect to wear under dresses. I also wear them under my bibs at work and it keeps me from getting overheated but I don't have to worry about whether or not my underwear show since they just look like shorts. I wish these came in maternity. I just keep them below my belly. I'll be buying more for sure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
recommand products
Star Moon themed design personalized keycap set, made of PBT sublimation material, factory height
29.90
Smiley Face Christmas Santa Tshirt
29.99
Clover Dandelion Saint Patrick's Day Women's Graphic Tee (Copy)
24.99
One Piece series personalized keycap set, PBT material, sublimation technology, mechanical keyboard decoration keycap set
34.90
Have Yourself a Merry Little Christmas Tshirt
29.99