Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗

Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗

Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗

Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗

Loads when you scroll to it. Unloads after 5 minutes in the background.

Download PDF

Contents

Pinout
Key specifications
Electrical characteristics
CAD (KiCad official)
Provenance

README

markdown

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