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MRA4003T3G

Public Made by Adom

by adom

onsemi Diodes - General Purpose, SMA(DO-214AC). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

markdown

MRA4003T3G

onsemi · Diodes - General Purpose · SMA(DO-214AC)

MRA4003T3G from onsemi, in a SMA(DO-214AC). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer onsemi
Package SMA(DO-214AC)
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Peak Repetitive Reverse Voltage VRRM 300 Volts MRA4003 column 2
Working Peak Reverse Voltage VRWM 300 Volts MRA4003 column 2
DC Blocking Voltage VR 300 Volts MRA4003 column 2
Avg. Rectified Forward Current IO 1 Amp At Rated VR, TL = 150°C 2
Peak Repetitive Forward Current IFRM 2 Amps At Rated VR, Square Wave, 20 kHz, TL = 150°C 2
Non-Repetitive Peak Surge Current IFSM 30 Amps Surge at rated load conditions, halfwave, single phase, 60 Hz 2
Junction Operating Temperature Range TJ -55 150 °C 2
Storage Temperature Range Tstg -55 175 °C 2
Thermal Resistance, Junction-to-Lead RθJL 16.2 °C/W Note 1: minimum pad size 2
Thermal Resistance, Junction-to-Ambient RθJA 88.3 °C/W Note 2: 1 inch pad size 2
Maximum Instantaneous Forward Voltage VF 1.1 Volts IF = 1 A, TJ = 25°C; Note 3 pulse test, pulse width ≤ 250 s, duty cycle ≤ 2% 2
Maximum Instantaneous Forward Voltage VF 1.18 Volts IF = 2 A, TJ = 25°C; Note 3 pulse test, pulse width ≤ 250 s, duty cycle ≤ 2% 2
Maximum Instantaneous Forward Voltage VF 1.04 Volts IF = 1 A, TJ = 100°C; Note 3 pulse test, pulse width ≤ 250 s, duty cycle ≤ 2% 2
Maximum Instantaneous Forward Voltage VF 1.12 Volts IF = 2 A, TJ = 100°C; Note 3 pulse test, pulse width ≤ 250 s, duty cycle ≤ 2% 2
Maximum Instantaneous Reverse Current IR 10 A At rated DC voltage, TJ = 25°C 2
Maximum Instantaneous Reverse Current IR 50 A At rated DC voltage, TJ = 100°C 2

CAD (KiCad official)

  • Symbol: MRA4003T3G
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: mra4003t3g-etched.step / mra4003t3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mra4003t3g.step / mra4003t3g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (5 pp, sha256 58ad07ee85620a87, retrieved 2026-10-21, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF