MCH-K305D K303D DC Power Supply Portable Mini Digital Switch
SKU: 21158414233

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: 21158414233

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Redhead75
Omaha, US
★★★★★ 5
So good!
Size: 4 Big Kid, Color: Aqua/Multi
As always sketchers give her great support nd comfort while being cute and easy on off! Slip resistant, breathable and size is spot on and super durable wash great and dry quick
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Carnegie, US
★★★★★ 5
Fantastic, stylish, and easy shoes!
Size: 2.5 Little Kid, Color: Aqua/Multi
My daughter LOVES these and wears them daily. She says they're really comfy and they slip on easily. They've held up for several months of daily wear so far and are still going strong!
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Janis H.
Natrona Heights, US
★★★★★ 5
Great shoes
Size: 3.5 Big Kid, Color: Hot Pink/Multi
These shoes are awesome! Have good arch support and very comfortable
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Reviewed in the United States on May 12, 2026
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Shelby g
Dallas, US
★★★★★ 5
Awesome shoes!
Size: 4 Big Kid, Color: Aqua/Multi
My daughter is SUPER picky about shoes and loves these. They are easy and quick to put on, run true to size, and most important COMFORTABLE. She is outgrowing them and will have to get her the next size up. Highly recommend for picky kids
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LORI
Grantham, US
★★★★★ 5
LOVE THESE
Size: 3 Little Kid, Color: Hot Pink/Multi
Really nice. Pix don’t do them justice.
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Reviewed in the United States on May 27, 2026

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