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SF54G

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NH Fast Recovery / High Efficiency Diodes, DO-27. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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SF54G

NH · Fast Recovery / High Efficiency Diodes · DO-27

SF54G from NH, in a DO-27. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer NH
Package DO-27
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
Maximum repetitive peak reverse voltage VRRM 200 V 1
Maximum RMS voltage VRMS 140 V 1
Maximum DC blocking voltage VDC 200 V 1
Maximum average forward rectified current IF (AV) 5 A see fig.1 1
Peak forward surge current I FSM 150 A 8.3ms single half sine-wave superimposed on rated load (JEDEC method at rated TL) 1
Maximum instantaneous forward voltage VF 0.95 V IF= 5.0 A (Note 1: pulse width < 300 uS, duty cycle < 2%) 1
Maximum instantaneous reverse current at rated DC blocking voltage IRRM 5 uA Ta=25℃ (Note 1) 1
Maximum instantaneous reverse current at rated DC blocking voltage IRRM 200 uA Ta=125℃ (Note 1) 1
Storage temperature range TSTG -55 150 ℃ 1
Operating junction temperature range TJ -55 150 ℃ 1

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 2. Thermal resistance from junction to lead vertical P.C.B. mounted , 0.375"(9.5mm)lead length,Polymide PCB, 2 oz Copper. 1

CAD (KiCad official)

  • Symbol: SF54G
  • Footprint: Diode_THT:D_DO-27_P15.24mm_Horizontal
  • 3D model: DO-27 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: NH datasheet (5 pp, sha256 862e9d20ca66d4ed, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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