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FR157

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by adom

MDD（Microdiode Electronics） Diodes - Fast Recovery Rectifiers, DO-15. 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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FR157

MDD（Microdiode Electronics） · Diodes - Fast Recovery Rectifiers · DO-15

FR157 from MDD（Microdiode Electronics）, in a DO-15. 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 MDD（Microdiode Electronics）
Package DO-15
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 VRMM 1000 V 1
Maximum RMS voltage VRMS 700 V 1
Maximum DC blocking voltage VDC 1000 V 1
Maximum average forward rectified current I(AV) 1.5 A at TA=75℃ 1
Peak forward surge current IFSM 60 A 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) 1
Maximum instantaneous forward voltage VF 1.3 V at 1.5A 1
Maximum DC reverse current IR 5 μA TA=25℃, at rated DC blocking voltage 1
Maximum DC reverse current IR 50 μA TA=100℃, at rated DC blocking voltage 1
Operating junction and storage temperature range TJ,TSTG -65 150 ℃ 1
Typical junction capacitance CJ 30 pF Measured at 1MHz and applied reverse voltage of 4.0V D.C. 1
Typical thermal resistance RθJA 50 ℃/W Thermal resistance from junction to ambient at 0.375in (9.5mm) lead length, P.C.B. mounted 1

CAD (KiCad official)

  • Symbol: FR157
  • Footprint: Diode_THT:D_DO-15_P12.70mm_Horizontal
  • 3D model: DO-15 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: MDD（Microdiode Electronics） datasheet (2 pp, sha256 a1300f8142e63668, retrieved 2026-10-21, 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