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Contents

README

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ES1CL

Changjing · Fast Recovery/High Efficiency Diode · SOD-123FL

ES1CL from Changjing, in a SOD-123FL. 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, marked by the color band on the package; connects to the positive side of the rectifier when conducting forward current (IF(AV) 1.0 A, VRRM 150 V for ES1CL).
2 A passive Anode, the end opposite the cathode band; forward current flows from anode to cathode (VF 0.95 V typ at IF=1.0A, max 1.25 V).

Key specifications

Parameter Value
Manufacturer Changjing
Package SOD-123FL
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
Repetitive Peak Reverse Voltage VRRM 150 V ES1CL column 1
Maximum RMS Voltage VRMS 105 V ES1CL column 1
Average Forward Current IF(AV) 1 A 60Hz Half-sine wave, Resistance load, Ta=90℃ 1
Surge (Non-repetitive) Forward Current IFSM 30 A 60Hz Half-sine wave, 1 cycle, Ta=25℃ 1
Peak Forward Voltage VF 0.95 V IF=1.0A 1
Maximum reverse recovery time trr 35 ns IF=0.5A,IR=1.0A,Irr=0.25A 1
Peak Reverse Current IRRM1 5 A VRM=VRRM, Ta=25 1
Peak Reverse Current IRRM2 100 A VRM=VRRM, Ta=100 1
Thermal Resistance junction to ambient RθJ-A 70 ℃/W Between junction and ambient, P.C.B. 5.0mm x 5.0mm copper pad 1
Thermal Resistance junction to lead RθJ-L 25 ℃/W Between junction and terminal, P.C.B. 5.0mm x 5.0mm copper pad 1
Operation Junction and Storage Temperature Range TJ,TSTG -55 150 ℃ 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper Thermal resistance from junction to ambient and from junction to lead mounted on P.C.B. with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper 1

CAD (KiCad official)

  • Symbol: ES1CL
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: es1cl-etched.step / es1cl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); es1cl.step / es1cl.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (4 pp, sha256 a545381e33f91bf9, retrieved 2026-10-22, tier: lcsc)
  • 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