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STPS1L40AY

Public Made by Adom

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STMicroelectronics Schottky Barrier Diodes (SBD), SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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STPS1L40AY

STMicroelectronics · Schottky Barrier Diodes (SBD) · SMA(DO-214AC)

STPS1L40AY from STMicroelectronics, 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 of the Schottky rectifier (VRRM 40 V, IF(AV) 1 A); marked on the SMA package as pin K.
2 A passive Anode of the Schottky rectifier (VRRM 40 V, IF(AV) 1 A); marked on the SMA package as pin A.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
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
Repetitive peak reverse voltage VRRM 40 V Tj = -40 °C to +175 °C 2
Average forward current IF(AV) 1 A δ = 0.5, square wave, SMA: TL = 155 °C 2
Surge non repetitive forward current IFSM 60 A tp = 10 ms sinusoidal, SMA 2
Repetitive peak avalanche power PARM 65 W tp = 10 µs, Tj = 125 °C 2
Storage temperature range Tstg -65 175 °C 2
Operating junction temperature range Tj -40 175 °C 2
Junction to lead thermal resistance Rth(j-l) 30 °C/W SMA 2
Reverse leakage current IR 35 µA Tj = 25 °C, VR = VRRM 2
Reverse leakage current IR 6 10 mA Tj = 125 °C, VR = VRRM 2
Forward voltage drop VF 0.5 V Tj = 25 °C, IF = 1 A 2
Forward voltage drop VF 0.37 0.42 V Tj = 125 °C, IF = 1 A 2

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 versus copper surface under each lead 4

CAD (KiCad official)

  • Symbol: STPS1L40AY
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: stps1l40ay-etched.step / stps1l40ay-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stps1l40ay.step / stps1l40ay.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (13 pp, sha256 a69268631f797c9e, retrieved 2026-10-22, 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