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DEXU Electronics K7803-500R3 product image
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DEXU Electronics K7803-500R3RoHS

Manufacturer
DEXU ElectronicsAsian Brands
MPN
K7803-500R3
LCSC Part #
C909766
Packaging
Through Hole
Customer #
Key Attributes
Wide voltage input non-isolated regulated output modular power supply (Three-terminal switching voltage regulator)
Datasheetpdf iconDEXU Electronics K7803-500R3
In-Stock: 1,862
1,862 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 1.1971$ 1.1373$ 1.14
10+$ 0.9636$ 0.9155$ 9.16
42+$ 0.836$ 0.7942$ 33.36
84+$ 0.6912$ 0.6567$ 55.16
504+$ 0.6258$ 0.5946$ 299.68
1,008+$ 0.5978$ 0.5680$ 572.54
Standard Packaging42/Full Tube
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Products Specifications

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TypeDescription
CategoryPower Supplies/Power Supplies - External/Internal (Off-Board)/AC DC Configurable Power Supply Modules
ManufacturerDEXU Electronics
PackagingThrough Hole
Height10.2mm
Switching Frequency2.4MHz
Ripple Noise45mVp-p
Function-
Quiescent Supply Current200uA
FeaturesShort Circuit Protection;Automatic fault recovery
Capacitive Load(Max)4700uF
Output Current(Max)500mA
Type-
Conversion Efficiency88%
Voltage - Supply3.3V~30V
Output Voltage3.3V
Number of Outputs1
Operating Temperature Range-40℃~+85℃
Length11.6mm
Width7.5mm
Output Voltage Accuracy±1%
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging42
Sales UnitPiece

Introduction

AI Translation

The K78xx-500R3 series are three-terminal switching regulators — wide-input, non-isolated regulated output modular power supplies. They feature high efficiency, low power dissipation, and minimal heat generation, requiring no heatsink for stable and reliable operation. This series addresses the drawbacks of conventional three-terminal linear regulators, namely low efficiency and excessive heat dissipation, making them an ideal drop-in replacement for legacy three-terminal linear regulators.

Features

AI Translation
  • Wide input voltage range: 4.5 - 36VDC
  • High conversion efficiency (up to 96%), low no-load current: 0.2mA (typ)
  • Pin-compatible with LM78xx series three-terminal linear regulators
  • Output short-circuit protection (self-recovering)
  • Operating temperature: -40°C ~ +85°C

Applications

AI Translation
  • Industrial control system power supplies
  • Power monitoring system power supplies
  • Instrumentation and measurement power supplies