component

1N4149TR

Public Made by Adom

by adom

onsemi Diodes - General Purpose, DO-35. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentdiodes1n4149trfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 6d ago
viewers 1n4149tr: viewers · Ray 6d ago
1n4149tr-hero.glb Publish 0.1.0 · Ray 6d ago
1n4149tr-hero.overlay.json Publish 0.1.0 · Ray 6d ago
1n4149tr.glb Publish 0.1.0 · Ray 6d ago
1n4149tr.kicad_mod Publish 0.1.0 · Ray 6d ago
1n4149tr.kicad_sym Publish 0.1.0 · Ray 6d ago
1n4149tr.lbr Publish 0.1.0 · Ray 6d ago
1n4149tr.step Publish 0.1.0 · Ray 6d ago
package.json Publish 0.1.0 · Ray 6d ago
page.json Set visibility: public · Ray 6d ago
README.md Publish 0.1.0 · Ray 6d ago

1N4149TR

onsemi · Diodes - General Purpose · DO-35

1N4149TR from onsemi, in a DO-35. 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 DO-35
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
Breakdown Voltage VR 75 V IR = 5µA 2
Breakdown Voltage VR 100 V IR = 100µA 2
Forward Voltage VF 1 V IF = 10mA 2
Reverse Leakage IR 25 nA VR = 20V 2
Reverse Leakage IR 50 µA VR = 20V, TA = 150°C 2
Total Capacitance CT 2 pF VR = 0, f = 1.0MHz 2
Reverse Recovery Time trr 4 ns IF = 10mA, VR = 6.0V, RL = 100Ω, Irr = 1mA 2
Maximum Repetitive Reverse Voltage VRRM 100 V 2
Average Rectified Forward Current IF(AV) 500 mA 2
Non-repetitive Peak Forward Surge Current IFSM 1 A Pulse Width = 1.0 second 2
Non-repetitive Peak Forward Surge Current IFSM 4 A Pulse Width = 1.0 microsecond 2
Storage Temperature Range TSTG -65 200 °C 2
Operating Junction Temperature TJ 175 °C 2
Power Dissipation PD 500 mW 2
Thermal Resistance, Junction to Ambient RθJA 300 °C/W 2

CAD (KiCad official)

  • Symbol: 1N4149TR
  • Footprint: Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal
  • 3D model: DO-35 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: onsemi datasheet (4 pp, sha256 712c5abb89dced5c, retrieved 2026-10-16, tier: lcsc)
  • 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