Power supplies and accessories

Power supplies and their accessories are the vital arteries that provide stable energy to all electronic systems, circuits, and equipment. Flawless performance, high efficiency, and the lifespan of sensitive circuit components (such as microcontrollers and ICs) depend heavily on the quality of the power supply's output voltage and current. Having access to a comprehensive archive of converters, energy storage devices, and magnetic elements is the first and most critical step in the principled design of any electronic or industrial system.
In this section, we provide a highly complete portfolio of energy management and power conversion components and devices:
  • Voltage & Current Converters (AC/DC & DC/DC): A wide variety of AC/DC converters (including switch-mode power supplies and adapters for safely converting grid power to DC voltage) and DC/DC converters (step-down/buck and step-up/boost modules designed to match different voltage rails on the board).
  • Energy Storage & Charging Equipment: An unparalleled diversity of batteries (Lithium-Ion, Lithium-Polymer, coin cell, 9V block, AA/AAA, and backup batteries) alongside intelligent battery chargers equipped with built-in protection systems against overcurrent and overvoltage.
  • Power Electronics & Magnetic Systems (Transformers): A specialized section for transformers and transformer components—including bobbins, ferrite cores, frames, and winding accessories for building custom transformers—along with advanced power electronics converter modules for managing high-power systems, industrial drivers, and inverters.
All products in this category are supplied with precise technical specifications (output current rating, operating efficiency, isolation voltage, and package type), verified component authenticity, and choices for individual or bulk purchase at competitive prices for manufacturers and engineers.
  • HKA01212010-4C

    HKA01212010-4C
    01307011

    -

     
    Out of stock
  • Li-ion 18490 3.7v 1300mAh

    Li-ion 18490 3.7v 1300mAh
    01301004

    LITHIUM ION BATTERY 18490-rechargeable Battery 3.7V 1300mAh

     
    Out of stock
  • 6 S 25.4 V Li-ion Battery

    6 S 25.4 V Li-ion Battery
    01301002

    6 S 24 V Li-ion Battery, full charge 25.2V Li-ion Batterie lithium 18650 LCD Charge Power testeur capacitance indicateur

     
    Out of stock
  • RSP-320-27

    RSP-320-27
    01307006

    Switching Power Supplies 321.3W 27V 11.9A W/ PFC

     
    Out of stock
  • EPEVER 1206N 12/24V 10A

    EPEVER 1206N 12/24V 10A
    01303004

    SOLAR CHARGE CONTROLLER MPPT 12/24V DC 10A 2USB OUTPUT 2.2A

     
    Out of stock
  • JAC0524-XLR

    JAC0524-XLR
    01303003

    24v MOBILITY SCOOTER WHEELCHAIR BATTERY CHARGER 5AMP

     
    Out of stock
  • HP8204B

    HP8204B
    01303005

    HIGHPOWER HP8204B 24 Volt 5 Amp XLR Lead Acid Smart Battery Charger

     
    Out of stock
  • HLK-5M03

    HLK-5M03
    01307003

    HLK-PM03 AC-DC 220V to 3.3V Step Down Buck Isolated Power Supply Module

     
    Out of stock
  • HLK-PM12

    HLK-PM12
    01307002

    HLK-PM12 AC-DC 220V to 12V 3W Buck Step Down Power Supply Module

     
    Out of stock
  • M78AR12-0.5

    M78AR12-0.5
    01305032

    -

     
    Out of stock
  • MCWI03-12S05

    MCWI03-12S05
    01305007

    DC/DC CONVERTER 3W High Power Density,VI=12V , VO=5V

     
    Out of stock
  • MCWI03-24S15-Ch

    MCWI03-24S15-Ch
    01305021

    DC/DC CONVERTER 3W ,VI=36V , VO=15V 0.2A

     
    Out of stock
  • MCWI05-24D12

    MCWI05-24D12
    01305011

    DC/DC CONVERTER 5W ,VI=24V , VO=12V

     
    Out of stock
  • MCWI05-24S05

    MCWI05-24S05
    01305012

    DC/DC CONVERTER 5W ,VI=9-36V , VO=5V, Efficiency 81% , 7PIN 21.8x9.3x11.2 mm

     
    Out of stock
  • MCWI05-24S12-Ch

    MCWI05-24S12-Ch
    01305018

    DC/DC CONVERTER 5W ,VI=24V , VO=12V

     
    Out of stock
  • MJWI15-24S05

    MJWI15-24S05
    01305028

    1x1" DC/DC Converter 15W ,VI=9-36V , VO=5V, Efficiency 88% , 6PIN 25.4x25.4x10.2mm

     
    Out of stock
  • MJWI20-24S05

    MJWI20-24S05
    01305015

    DC/DC Converter Input Range: 9~36vdc, Vo:5V ,20W

     
    Out of stock
  • MJWI20-24S12

    MJWI20-24S12
    01305002

    DC/DC CONVERTER 20W ,VI=24V , VO=12V

     
    Out of stock
  • MJWI25-24S12

    MJWI25-24S12
    01305009

    25W, Single Output, Encapsulated DC/DC Board mount Converter with 24V Input, 12V Output, and Heat Sink

     
    Out of stock
  • MKW40-24S05

    MKW40-24S05
    01305022

    DC-DC CONVERTER 40W, Highest Power Density

     
    Out of stock
  • NTE0505MC

    NTE0505MC
    01305035

    Isolated 1W Single Output SM DC-DC Converters Output 5V 200mA 8-Pin SMD

     
    Out of stock
  • R-78HB5.0-0.5(Original)

    R-78HB5.0-0.5(Original)
    01305025

    Non-Isolated DC/DC Converters 0.5A DC/DC REG 9-72Vin 5Vout

     
    Out of stock
  • 5952020601

    5952020601
    01001015

    Solid Free Hanging Ferrite Core ID 0.531" Dia (13.50mm) OD 0.854" Dia (21.70mm) Length 0.250" (6.35mm)

    Manufacturer part number: 01715207
    Out of stock