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

README

markdown

STTH4R02BY-TR

STMicroelectronics · Fast Recovery / High Efficiency Diodes · DPAK

STTH4R02BY-TR from STMicroelectronics, in a DPAK. 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 NC unconnected No connection; the left lead in the DPAK pictogram is labelled NC.
2 K passive Cathode, connected to the metal tab; the diode is rated for VRRM of 200 V and IF(AV) of 4 A.
3 A passive Anode, the right lead in the DPAK pictogram.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package DPAK
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 200 V Tj = -40 °C to + 175 °C 2
Forward rms current IF(RMS) 10 A 2
Average forward current IF(AV) 4 A δ = 0.5, square wave; DPAK Tc = 160 °C 2
Surge non repetitive forward current IFSM 70 A tp = 10 ms sinusoidal 2
Storage temperature range Tstg -65 175 °C 2
Maximum operating junction temperature Tj -40 175 °C See note 1: (dPtot/dTj) < (1/Rth(j-a)) to avoid thermal runaway on own heatsink 2
Junction to case thermal resistance Rth(j-c) 3.5 °C/W DPAK 2
Reverse leakage current IR 3 µA Tj = 25 °C, VR = VRRM 2
Reverse leakage current IR 2 20 µA Tj = 125 °C, VR = VRRM 2
Forward voltage drop VF 0.95 1.05 V Tj = 25 °C, IF = 4 A; pulse test tp = 380 µs, δ < 2% 2
Forward voltage drop VF 0.76 0.83 V Tj = 150 °C, IF = 4 A; pulse test tp = 380 µs, δ < 2% 2
Reverse recovery time trr 24 30 ns Tj = 25 °C, IF = 1 A; dIF/dt = -50 A/µs; VR = 30 V 3
Reverse recovery time trr 16 20 ns Tj = 25 °C, IF = 1 A; dIF/dt = -100 A/µs; VR = 30 V 3
Reverse recovery current IRM 4.4 5.5 A Tj = 125 °C, IF = 4 A; dIF/dt = -200 A/µs; VR = 160 V 3
Reverse recovery time trr 27 ns 3
Reverse recovery charges Qrr 60 nC 3

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
housing Abs Updated features and description in cover page. Updated Table 2: "Absolute ratings (limiting values at 25 °C, unless 13
contacts copper versus copper surface under each lead 5

CAD (KiCad official)

  • Symbol: STTH4R02BY-TR
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: DPAK (KiCad packages3D, STEP)
  • 3D model files: stth4r02by-tr-etched.step / stth4r02by-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stth4r02by-tr.step / stth4r02by-tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (14 pp, sha256 04e9944b94ef5376, retrieved 2026-10-21, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF