SKU: 29394540367

MCH-K305D K303D DC Power Supply Portable Mini Digital Switch

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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:
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  • 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]
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SKU: 29394540367

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Waddler
Phoenix, US
★★★★★ 5
Great Story about Native Americans before Europeans
Format: Paperback
I read this book with my kids (11,8) as part of our unit on Native Americans before colonization. They both really enjoyed it. It helped to humanize history for them and show them that although the cultural practices were different, the characters experienced some of the same feelings, relationship challenges, and personal struggles and triumphs that we experience today.
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Reviewed in the United States on October 31, 2022
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Yam
Port Orchard, US
★★★★★ 5
Wonderful book about pre-European North America
Format: Paperback
This is a great book. There's a massive shortage of children's books written by Natives, especially ones that give a picture of pre-European America, and if you've noticed that, THIS IS THE BOOK YOU'RE LOOKING FOR to fill that hole in your home school curriculum/child's library. It's a "boy book," but my seven year old girl got through it without any complaints except that she wanted me to read ahead so I could tell her if anything scary happened. I would say that the plot is a little slow, the main story pauses a lot for background information or traditional stories. But that's not really a complaint, I don't think it's even worth taking off one star. Almost anything by Joseph Bruchac is worth your money, and this one is no exception.
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Reviewed in the United States on May 31, 2020
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lightninglesley
Lake Worth, US
★★★★★ 5
Sweet Story
Format: Hardcover
Adorable and funny, very sweet ending. If you like the other "are the worst" books, this one will fit right in.
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Reviewed in the United States on May 13, 2026
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deborah gaspari
Grantham, US
★★★★★ 5
Good book
Format: Hardcover
7 y/o grandson loved this story This book is part of a series and funny
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Reviewed in the United States on April 1, 2026
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Amazon Customer
Pawtucket, US
★★★★★ 5
Great book!
Format: Hardcover
My kids love this book. It's not a super long book but long enough to give a fun storyline. Puts a fun spin on cupid.
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Reviewed in the United States on February 24, 2026

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