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LMSD103AT1G

LRC · Schottky Diodes · SOD-123

LMSD103AT1G from LRC, in a SOD-123. 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 CATHODE passive Cathode terminal, identified by the cathode band on the package; the datasheet gives no pin-specific limits, so the device maximum ratings (for example 40 V VRRM and 350 mA forward current for the LMSD103AT1G) apply.
2 ANODE passive Anode terminal; the datasheet gives no pin-specific limits, so the device maximum ratings and forward characteristics at 25 °C apply.

Key specifications

Parameter Value
Manufacturer LRC
Package SOD-123
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
Reverse Breakdown Voltage (LMSD103AT1G variant) V(BR)R 40 V IR = 100A 1
Forward Voltage Drop VFM 0.37 V IF = 20mA 1
Forward Voltage Drop VFM 0.6 V IF = 200mA 1
Peak Reverse Current (LMSD103AT1G variant) IRM 5 µA VR = 30V 1
Peak Repetitive Reverse Voltage (LMSD103AT1G) VRRM 40 V 1
Working Peak Reverse Voltage (LMSD103AT1G) VRWM 40 V 1
DC Blocking Voltage (LMSD103AT1G) VR 40 V 1
RMS Reverse Voltage (LMSD103AT1G) VR(RMS) 28 V 1
Forward Continuous Current IFM 350 mA Note 1 1
Non-Repetitive Peak Forward Surge Current IFSM 1.5 A t 1.0s 1
Power Dissipation Pd 400 mW Note 1 1
Thermal Resistance, Junction to Ambient Air RJA 300 C/W Note 1: part mounted on FR-4 board with recommended pad layout 1
Operating and Storage Temperature Range Tj, TSTG -65 125 C 1
Total Capacitance CT 28 pF VR = 0V, f = 1.0MHz 1
Reverse Recovery Time trr 10 ns IF = IR = 200mA, Irr = 0.1 x IR, RL = 100 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 tin Also Available in Lead Free Plating (Matte Tin Finish). Please See 1

CAD (KiCad official)

  • Symbol: LMSD103AT1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: lmsd103at1g-etched.step / lmsd103at1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmsd103at1g.step / lmsd103at1g.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (3 pp, sha256 e2c275a27bcb37aa, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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