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STTH112RL

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STMicroelectronics Diodes - Fast Recovery Rectifiers, DO-41. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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STTH112RL

STMicroelectronics · Diodes - Fast Recovery Rectifiers · DO-41

STTH112RL from STMicroelectronics, in a DO-41. 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, identified by the band on the DO-41 package; the diode blocks up to VRRM = 1200 V repetitive peak reverse voltage.
2 A passive Anode of the ultrafast rectifier, conducting an average forward current IF(AV) of 1 A (Tl = 85 °C, δ = 0.5) for the DO-41.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package DO-41
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
Reverse leakage current IR 5 µA VR = 1200 V, Tj = 25 °C 2
Reverse leakage current IR 50 µA VR = 1200 V, Tj = 125 °C 2
Forward voltage drop VF 1.9 V IF = 1 A, Tj = 25 °C 2
Forward voltage drop VF 1.17 1.65 V IF = 1 A, Tj = 125 °C 2
Forward voltage drop VF 1.1 1.55 V IF = 1 A, Tj = 150 °C 2
Reverse recovery time trr 75 ns IF = 0.5 A, Irr = 0.25 A, IR = 1A, Tj = 25 °C 2
Forward recovery time tfr 500 ns IF = 1 A, dIF/dt = 50 A/µs, VFR = 1.1 x VFmax, Tj = 25 °C 2
Forward recovery voltage VFP 30 V IF = 1 A, dIF/dt = 50 A/µs, VFR = 1.1 x VFmax, Tj = 25 °C 2
Repetitive peak reverse voltage VRRM 1200 V 2
Voltage rms V(RMS) 850 V 2
Average forward current IF(AV) 1 A Tl = 85°C δ = 0.5 DO-41 2
Forward surge current IFSM 20 A t = 8.3 ms, DO-41 2
Storage temperature range Tstg -50 175 °C 2
Maximum operating junction temperature Tj 175 °C 2
Junction to lead thermal resistance Rth(j-l) 45 °C/W L = 10 mm, DO-41 2
Junction to ambient thermal resistance Rth(j-a) 110 °C/W L = 10 mm, DO-41 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 L =10mm leads epoxy printed circuit board FR4, copper thickness: 35µm 3

CAD (KiCad official)

  • Symbol: STTH112RL
  • Footprint: Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal
  • 3D model: DO-41 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: STMicroelectronics datasheet (8 pp, sha256 a0f63569ec40e53e, 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