K7803-2000R3 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

K7803-2000R3 product

K7803-2000R3

Component

3.3 V output2 A output6-36 V inputnon-isolatedLM78xx compatiblethrough-hole module

K7803-2000R3 is a non-isolated 3.3 V, 2 A switching-regulator module for 6 V to 36 VDC inputs. It is designed as a higher-efficiency, pin-compatible alternative to LM78xx-style linear regulators.

Best for

  • Replacing a 3.3 V linear regulator where switching efficiency is beneficial
  • 24 V nominal industrial control rails
  • Instrumentation power rails up to 2 A

Avoid if

  • Galvanic isolation is required
  • The application requires reverse-polarity protection from the regulator itself
  • Hot-swap operation or parallel converter outputs are required

Check before use

  • Validate thermal derating at the intended ambient temperature and input voltage
  • Use the required local input and output capacitors
  • Confirm the LM78xx-compatible pin assignment matches the board footprint

Key specifications

Input range
6 V to 36 VDC
Output
3.3 VDC, 2 A max.
Efficiency
89% typ. at minimum Vin
Operating temperature
-40 °C to +85 °C
Protection
Continuous self-recovering short-circuit protection

Compliance & Environment

RoHS
RoHS
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Industrial controlInstrumentationPoint-of-load power conversion

CAD Models

Download ECAD models for K7803-2000R3: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
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3D Model
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KiCad Library
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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

K7803-2000R3 is a YLPTEC non-isolated DC/DC switching regulator module with a regulated 3.3 V output. It accepts 6 V to 36 VDC input and supplies up to 2 A.