component

US1A

Public Made by Adom

by adom

hongjiacheng Fast Recovery/High Efficiency Diode, 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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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 3h ago
viewers us1a: viewers · Ray 3h ago
package.json Publish 0.1.0 · Ray 3h ago
page.json Set visibility: public · Ray 3h ago
README.md Publish 0.1.0 · Ray 3h ago
us1a-etched.glb Publish 0.1.0 · Ray 3h ago
us1a-etched.step us1a: factory component page (tier=lcsc) · Ray 3h ago
us1a-hero.glb us1a: hero GLB from the etched model (keeps the MPN mark) · Ray 3h ago
us1a-hero.overlay.json Publish 0.1.0 · Ray 3h ago
us1a.glb Publish 0.1.0 · Ray 3h ago
us1a.kicad_mod Publish 0.1.0 · Ray 3h ago
us1a.kicad_sym Publish 0.1.0 · Ray 3h ago
us1a.lbr Publish 0.1.0 · Ray 3h ago
us1a.step Publish 0.1.0 · Ray 3h ago

US1A

hongjiacheng · Fast Recovery/High Efficiency Diode · SMA(DO-214AC)

US1A from hongjiacheng, 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 hongjiacheng
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
Maximum Repetitive Peak Reverse Voltage VRRM 50 V 1
Maximum RMS Voltage VRMS 35 V 1
Maximum DC blocking Voltage VDC 50 V 1
Maximum Average Forward Rectified Current IF(AV) 1 A 60Hz sinewave, Resistance load, TL (Fig.1) 1
Non-repetitive Peak Forward Surge Current IFSM 30 A t=8.3ms Half-sine wave 1
Storage temperature Tstg -55 150 ℃ 1
Junction temperature Tj -55 150 ℃ 1
Typical Thermal Resistance junction to ambient RθJ-A 80 ℃/W 1
Typical Thermal Resistance junction to lead RθJ-L 30 ℃/W 1
Maximum instantaneous forward voltage VF 1 V IF=1.0A 2
Maximum reverse recovery time Trr 50 ns IF=0.5A, IR=1.0A, Irr=0.25A 2
Maximum DC reverse current at rated DC blocking voltage, TA=25℃ IR1 5 μA VR=VDC, TA=25℃ 2
Maximum DC reverse current at rated DC blocking voltage, TA=100℃ IR2 500 μA VR=VDC, TA=100℃ 2
Typical junction capacitance CJ 20 pF 4.0V DC, 1MHz 2

CAD (KiCad official)

  • Symbol: US1A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: us1a-etched.step / us1a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); us1a.step / us1a.glb are the bare package body.

Provenance

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

  • Datasheet: hongjiacheng datasheet (3 pp, sha256 da9413d932b56832, retrieved 2026-10-21, 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