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STPS40L15CT

Public Made by Adom

by adom

STMicroelectronics Schottky Diodes, TO-220AB-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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STPS40L15CT

STMicroelectronics · Schottky Diodes · TO-220AB-3

STPS40L15CT from STMicroelectronics, in a TO-220AB-3. 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 A1 passive Anode of the first Schottky diode (2x20 A per-diode rating, VRRM 15 V), with its cathode on the common K pin.
2 K passive Common cathode of both diodes, also connected to the metal tab, shown labelled K in the TO-220AB drawing.
3 A2 passive Anode of the second Schottky diode (20 A average per diode, VRRM 15 V), with its cathode on the common K pin.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-220AB-3
Category Diodes
Pins 3

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 15 V 2
Forward current rms IF(RMS) 30 A 2
Average forward current IF(AV) 40 A Total; Tcase = 140 °C, δ = 1 2
Average forward current IF(AV) 20 A Per diode; Tcase = 140 °C, δ = 1 2
Surge non repetitive forward current IFSM 310 A tp = 10 m, Sinusoidal 2
Peak repetitive reverse current IRRM 2 A tp = 2 µs, F = 1 kHz 2
Non repetitive peak reverse current IRSM 3 A tp = 100 µs 2
Repetitive peak avalanche power PARM 13140 W tp = 1 µs, Tj = 25 °C 2
Storage temperature range Tstg -65 150 °C 2
Maximum operating junction temperature Tj 125 °C Condition to avoid thermal runaway for a diode on its own heatsink 2
Critical rate of rise of reverse voltage dV/dt 10000 V/µs 2
Junction to case thermal resistance Rth(j-c) 1.6 °C/W Per diode 2
Junction to case thermal resistance Rth(j-c) 0.85 °C/W Total 2
Coupling thermal resistance Rth (c) 0.1 °C/W 2
Reverse leakage current IR 6 mA Tj = 25 °C, VR = VRRM; pulse test tp = 380 µs, δ < 2% 2
Reverse leakage current IR 200 500 mA Tj = 100 °C, VR = VRRM; pulse test tp = 380 µs, δ < 2% 2
Forward voltage drop VF 0.41 V Tj = 25 °C, IF = 19 A; pulse test tp = 380 µs, δ < 2% 2
Forward voltage drop VF 0.52 V Tj = 25 °C, IF = 40 A; pulse test tp = 380 µs, δ < 2% 2
Forward voltage drop VF 0.28 0.33 V Tj = 125 °C, IF = 19 A; pulse test tp = 380 µs, δ < 2% 2
Forward voltage drop VF 0.42 0.5 V Tj = 125 °C, IF = 40 A; pulse test tp = 380 µs, δ < 2% 2

CAD (KiCad official)

  • Symbol: STPS40L15CT
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220AB-3 (KiCad packages3D, STEP)
  • 3D model files: stps40l15ct-etched.step / stps40l15ct-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stps40l15ct.step / stps40l15ct.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (8 pp, sha256 987f88c9150c5f5e, retrieved 2026-10-16, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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