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STPS2L40AF on a board, in 3D

STPS2L40AF

STMicroelectronics

1 Independent 220uA@40V 2A 40V 430mV@2A 75A DO-221AC Schottky Diodes ROHS

Extended
DatasheetJLCPCBLCSCst/STPS2L40AF
Category
Schottky Diodes
Package
DO-221AC
Pins
2

Overview

The STPS2L40AF is a schottky Diode made by STMicroelectronics in a DO-221AC package with 2 pins. 1 Independent 220uA@40V 2A 40V 430mV@2A 75A DO-221AC Schottky Diodes ROHS.

PCBKit's library has its KiCad symbol (Device:D_Schottky, from KiCad's library) and its footprint (EasyEDA_Cloud:DO-221AC_L4.4-W2.6-LS5.2-RD, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2970303). 5 open-source boards in 5 repositories on GitHub use it.

Symbol

Device:D_SchottkyFrom KiCad's library

Footprint

12
EasyEDA_Cloud:DO-221AC_L4.4-W2.6-LS5.2-RDFrom EasyEDA

From the datasheet

6
Reverse voltage, most
40 V · max repetitive peak reverse voltage · p. 2
Forward current, most
2 A · max average forward current, square wave, δ = 0.5, SMA Flat TL = 130 °C · p. 2
Junction, hottest
150 °C · max operating junction temperature · p. 2
Forward voltage
250 mV · typical at IF = 1 A, Tj = 125 °C · p. 2
Forward voltage
310 mV · typical at IF = 2 A, Tj = 125 °C · p. 2
Forward voltage
390 mV · typical at IF = 4 A, Tj = 125 °C · p. 2

What it is and has

5
Conduction losses
Very small · p. 1
Switching losses
Negligible · p. 1
Forward voltage drop
Low · p. 1
Avalanche rating
Avalanche rated · p. 1
Environmental designation
ECOPACK2 component · p. 1

Specifications

16
ParameterConditionsAs printedPage
Repetitive peak reverse voltage VRRM25 °Cmax 40 V2
Average forward current, δ = 0.5, square wave IF(AV)SMA Flat, TL = 130 °Cmax 2 A2
Surge non repetitive forward current IFSMtp = 10 ms sinusoidalmax 75 A2
Repetitive peak avalanche power PARMtp = 10 us, Tj = 125 °Cmax 158 W2
Storage temperature range Tstgmin -65 · max 150 °C2
Maximum operating junction temperature(1) Tj(dPtot/dTj) < (1/Rth(j-a)) condition to avoid thermal runaway for a diode on its own heatsink.max 150 °C2
Junction to lead Rth(j-l)SMA Flatmax 20 °C/W2
Reverse leakage current IR(1)Tj = 25 °C, VR = 40 V; pulse test: tp = 380 us, δ < 2%max 220 uA2
Reverse leakage current IR(1)Tj = 100 °C, VR = 40 V; pulse test: tp = 380 us, δ < 2%max 20 mA2
Reverse leakage current IR(1)Tj = 125 °C, VR = 40 V; pulse test: tp = 380 us, δ < 2%typ 38 · max 80 mA2
Forward voltage drop VF(1)Tj = 25 °C, IF = 1 A; pulse test: tp = 380 us, δ < 2%max 0.39 V2
Forward voltage drop VF(1)Tj = 125 °C, IF = 1 A; pulse test: tp = 380 us, δ < 2%typ 0.25 · max 0.28 V2
Forward voltage drop VF(1)Tj = 25 °C, IF = 2 A; pulse test: tp = 380 us, δ < 2%max 0.43 V2
Forward voltage drop VF(1)Tj = 125 °C, IF = 2 A; pulse test: tp = 380 us, δ < 2%typ 0.31 · max 0.34 V2
Forward voltage drop VF(1)Tj = 25 °C, IF = 4 A; pulse test: tp = 380 us, δ < 2%max 0.5 V2
Forward voltage drop VF(1)Tj = 125 °C, IF = 4 A; pulse test: tp = 380 us, δ < 2%typ 0.39 · max 0.45 V2

Ordering codes, by the datasheet

1
STPS2L40AF
SMA Flat · Marking F2L4; weight 0.035 g; base quantity 10 000; tape and reel · p. 15

Parameters

8
Current - Rectified
2A
Diode Configuration
1 Independent
Junction Temperature(Max)
150℃
Non-Repetitive Peak Forward Surge Current
75A
Reverse Leakage Current (Ir)
220uA@40V
Voltage - DC Reverse(Vr)
40V
Voltage - Forward(Vf)
250mV
Voltage - Forward(Vf@If)
430mV@2A

Order codes

1

Pinout

2
The pins of the STPS2L40AF
PinNameType
1KPassive
2APassive

Open-source boards using it

All 5
  • 4 layers94 × 50.8 mmUlx3s, the printed circuit board in 3D

    Ulx3s

    drandyhaas/KiCadRoutingTools

    A set of Python/Rust tools to aid routing in KiCad

    235 parts744MIT
  • 6 layers85 × 56 mmKarnix ASB, the printed circuit board in 3D

    Karnix ASB

    Fabmicro-LLC/Karnix_ASB-254

    Karnaugh Interactive Extendable ASIC Simulation Board AKA Karnix ASB-254

    368 parts19
  • 4 layers97.6 × 74.8 mmProject byte hamr, the printed circuit board in 3D

    Project byte hamr

    robertrico/project_byte_hamr

    Open source expansion platform for Apple IIe prototyping and development

    93 parts2
  • 2 layers100 × 110 mmA2m2053, the printed circuit board in 3D

    A2m2053

    robertrico/a2m2053_controller

    A replacement controller board for the Apple UniDisk 3.5 (A2M2053).

    46 parts
  • 8 layers60.1 × 32.1 mmPanelith, the printed circuit board in 3D

    Panelith

    w531t4/panelith

    PCB for Panelith FPGA Board

    103 parts

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Questions

Is there a KiCad symbol and footprint for the STPS2L40AF?

Yes. The symbol is Device:D_Schottky and the footprint EasyEDA_Cloud:DO-221AC_L4.4-W2.6-LS5.2-RD, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the STPS2L40AF?

DO-221AC, with 2 pins. Its footprint is drawn on this page.

Where is the STPS2L40AF datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the STPS2L40AF?

JLCPCB lists it as part C2970303, with 0 in stock; the sellers' links on this page open their listings.

What can replace the STPS2L40AF?

Parts like it in the library: the VSSAF510HM3/H by Vishay Intertechnology, the VSSAF5L45-M3/6A by Vishay Intertechnology, the SK54AFL-HXY by HXY MOSFET and the VSSAF512HM3/H by Vishay Intertechnology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the STPS2L40AF?

5 boards in 5 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8