component

1N4448

Public Made by Adom

by adom

onsemi Diodes - General Purpose, DO-35. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentdiodes1n4448factory-2.0.0extractor-text

Verified 1N4448

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: 1N4448 · DO-35 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 6-page datasheet
  • ✓distributor: lcsc C258170, digikey 4878-1N4448CT-ND, mouser 637-1N4448
  • ✓family: D_DO-35_SOD27_P7.62mm_Horizontal
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-7xvs_6wn/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): the datasheet dimensions give no height or body size to compare (datasheet p.5)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ 1n4448.kicad_sym✓ 1n4448.kicad_mod✓ 1n4448.step
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Ray Publish 0.1.0 ffd0792 20h ago

1N4448

onsemi · Diodes - General Purpose · DO-35

1N4448 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 terminal, denoted by the black band on the DO-35 glass body.
2 A passive Anode terminal, the axial lead at the end opposite the black cathode band.

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
Maximum Repetitive Reverse Voltage VRRM 100 V TA = 25°C 2
Average Rectified Forward Current IO 200 mA TA = 25°C 2
DC Forward Current IF 300 mA TA = 25°C 2
Recurrent Peak Forward Current If 400 mA TA = 25°C 2
Non-repetitive Peak Forward Surge Current IFSM 1 A Pulse Width = 1.0 s 2
Non-repetitive Peak Forward Surge Current IFSM 4 A Pulse Width = 1.0 s 2
Storage Temperature Range TSTG -65 200 °C 2
Operating Junction Temperature Range TJ -55 175 °C 2
Power Dissipation PD 500 mW 2
Thermal Resistance, Junction-to-Ambient RJA 300 °C 2
Breakdown Voltage VR 100 V IR = 100 A 2
Breakdown Voltage VR 75 V IR = 5.0 A 2
Forward Voltage (4448) VF 0.62 0.72 V 914B / 4448, IF = 5.0 mA 2
Forward Voltage (4448) VF 1 V 914B / 4448, IF = 100 mA 2
Reverse Leakage IR 0.025 A VR = 20 V 2
Reverse Leakage IR 50 A VR = 20 V, TA = 150°C 2
Reverse Leakage IR 5 A VR = 75 V 2
Total Capacitance CT 2 pF 916/916A/916B/4448, VR = 0, f = 1.0 MHz 2
Reverse Recovery Time trr 4 ns IF = 10 mA, VR = 6.0 V (600 mA), Irr = 1.0 mA, RL = 100 2

CAD (KiCad official)

  • Symbol: 1N4448
  • 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 (6 pp, sha256 b5e9fb470d755b7e, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (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