SKU: 29394540367

MCH-K305D K303D DC Power Supply Portable Mini Digital Switch

Sale price$34.70 Regular price$38.55
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Description

MCH-K305D K303D DC Power Supply Portable Mini Digital SwitchMCH K305D MCH K303D mini switching regulated adjustable DC Power Supply SMPS single channel 30V 5A variable with cable. MCH K305D MCH K303D switching power supply with three digit display for repairing mobile phones and laptops. The switching DC power supply adopts a special miniature design, which is small in size, light in weight and easy to operate. Features: 1. This mini DC power supply adopt the multi coil high precision positioner to fine tune

MCH-K305D MCH-K303D mini switching regulated adjustable DC Power Supply SMPS single channel 30V 5A variable with cable. MCH-K305D MCH-K303D switching power supply with three-digit display for repairing mobile phones and laptops. The switching DC power supply adopts a special miniature design, which is small in size, light in weight and easy to operate.

Features:
1.This mini DC power supply adopt the multi coil high-precision positioner to fine tune the current and voltage, and the ultra high sensitivity is achieved.
2. High quality and good performance, adopt advanced chip technology, intelligent cooling system. And it has longer service life.
3. It is made of rugged metal material,simple and elegant.
4.Both switch DC power supply is portable, small size and light weight, so it is easy to operate.


Specifications:

Model No.: MCH-K305D MCH-K303D

Line Voltage: 110V/220VAC, 50Hz-60Hz

Input Current : 0.9A

Output Voltage Range: 0-30V

Output Current Range: 0-3/5A

Voltage Display Accuracy:±0.5%

Current Display Accuracy:±0.5%

Efficiency: >85%

Voltage Regulation

Load Regulation(10-100%): 50mV

Line Regulation(200-240VAC) : 20mV

Ripple & Noise(P-P) :  50mV

Current Regulation:

Load Regulation(10-100%): 20mA

Line Regulation(200-240VAC) : 20mA

Ripple & Noise(p-p): 20mA

Others Specifications:

Operating Ambient: -10°C to + 60°C, 30%RH to 90% RH

Size: 7(W) x 16(H) x 22(D) cm

Packing Weight: 1.8kg

Parameters:

model

MCH-K303D

MCH-K305D

The output voltage

0-30V

0-30V

The output current

0-3A

0-5A

display

Three digit

Three digit

Input voltage

104-127VAC(60HZ)

Power supply effect

CV≤0.01%+2mV   CC≤0.2%+2mA

Load effect

CV≤0.01%+5mV   CC≤0.2%+5mA

protection

Current limit and short circuit protection

Operation environment

-10  ℃ to +60 ℃, 30%RH to 90%RH

Ripple and noise(P-P)

20MA

Load adjustment degree(10-100%)

20MA

Line voltage adjustment (10-100%)

20MA

Efficiency

 >85%

Current display precision

±0.5%

Voltage display presision

±0.5%


Product display

1. Materials is full efficient and reliable


Military-grade circuit board, advanced patch technology, seckill in-line design. Adopting high-quality components, DC power supply is more efficient

2. Simple design but not simple functions

Ultra-simple shape design contains 20 years of rigorous and precise production technology to maximize portability and achieve maximum application with small machines.

3. Metal plastic, Rugged pressure

The selection of sturdy and pressure-resistant hardware material body, thickness is about 2mm. The fuselage vents conform to the airflow principle. Reject all counterfeit materials and refurbishment.

4. Super movement, Multiple protection.

The small model has a big effect. Compared with the large-volume power supply, it has the same protection function and performance. The performance linear power supply is higher, overload, over-voltage, over-current, current-limit, multiple protection, and be relieved to use.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 29394540367

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4.0 ★★★★★
Based on 5 reviews
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Product Reviews
J
Verified Purchase
Jarett
Lake Worth, US
★★★★★ 5
Great investment
Size: Small: 24" x 24"
It catches the pee that runs off the pad, great investment!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
K
Verified Purchase
Karen
Omaha, US
★★★★★ 2
It doesn’t stop leaks from the pee pad.
Size: X-Large: 28" x 34"
I’m trying to figure out how not to have leaks occasionally. I’m going to call the company to see if there’s something I should be doing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
M
Verified Purchase
Michael Holbrook
New York, US
★★★★★ 5
Training pad holder literally rises above the competition
Size: 24"X24"
We have been through a variety of potty pad products during our housetraining journey with our Havanese pup. The Petphabet training pad holder has been the best by far and has ended our search for a number of reasons: Pros: 1. Grid design keeps puppy from chewing/tearing/destroying/eating the potty pad. 2. Size is perfect for our pup even as he is getting bigger (15 lbs) - mileage may vary for larger pups/dogs. 3. HERE IS THE REASON THIS PAD HOLDER STANDS OUT AMONG THE COMPETITION - The top grid is elevated off the surface layer where the pad lays, which allows an air gap between the standing surface and the potty pad. This allows the urine to fall to the pad without pooling and without your pup stepping in it and tracking it everywhere! Cons/Areas for improvement: 1. We like blue but it's not for everyone! 2. The "posts" holding the mesh up from the base carry all of the weight of the dog and in some cases jumping or playing on the pad holder can cause the edges of the posts to cut through the potty pad liner, causing a (minor) leak. I would recommend the manufacturer design any subsequent models with larger, flat surfaces on the post supports. 3. The 4 piece design means the base is not solid but has a split down the middle that is not waterproof. This can be remedied by caulking the 2 sides of the base together with clear silicone assuming you will no longer need to disassemble the unit. 4. Poo can get caught in the grid if your pup has loose stool. If not removed quickly your pup may step on it and really pack it in there. After many trials with other products, we are very happy with this training pad holder and have bought a total of 3 units for different areas of our house. I highly recommend for small dogs/pups!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 28, 2023
K
Verified Purchase
KJP
Carnegie, US
★★★★★ 5
Works Great!!!
Size: 18"X24"
I have 2 pugs and have trained them to "go" on a grid. I started with another brand (Klean Paws) but found this brand (Petphabet Puppy Training Pad Holder) to be superior in several ways. This training pad holder is designed much better. The plastic grid is well supported so the puppy does not get wet paws when waling on the grid. The overall design of the training pad holder makes it very easy to replace training pads. Standard training pads (17.5" x 23.5") fit the medium Petaphet puppy training pad holder perfectly. Just lay the pads flat on the bottom, place the grid on top and clip it all into place with the frame. The frame holds everything in place and keeps any loose ends, hidden from mischievous puppies. It takes a lot of effort to train puppies to "go" on a grid, but it's worth it. I started with one grid in a crate. Then, I gaited off my kitchen area, with 4 medium grids (as shown in the video). You cannot expect a puppy or dog to just go to one spot and do their thing. Dogs like to sniff and walk around before they "go." They need room. I suggest 2 medium girds per medium-sized dog. I have 2 pugs and 4 grids. I reward them with a pinch of peanut butter, whenever I see them go on the grid. I simply pickup the #2 with TP and flush it down the toilet. I replace the pads, in the 4 grids, once a day. NOTE: The sellers of the dog training pad holders seem to come and go. If you cannot find this particular training pad holder, do a search for Mesh training pad holder. Be sure to get a training pad holder that has 3 parts -- the bottom tray, the mesh grid, and a frame that holds it all together. Some of the simpler grids have just 2 parts (bottom tray and top). They are simpler, but do NOT keep paws dry.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 1, 2018
M
Verified Purchase
Miriam Velez
Lexington, US
★★★★★ 4
Good quality, but my dog didn’t like it
Size: 24"X24"
The product arrived in perfect condition and looks well made. It’s sturdy and easy to clean, so I can see it working well for many dogs. However, my Cavapoo (17 lbs, 1 year old) never liked it. I tried for several weeks, but there was no way to get him to use it. I think it depends on the dog’s preference. For us, it didn’t work, but the product itself is good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 20, 2025

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