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1N5373B

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by adom

SUNMATE Elec Zener Diodes, DO-201AD. 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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1N5373B

SUNMATE Elec · Zener Diodes · DO-201AD

1N5373B from SUNMATE Elec, in a DO-201AD. 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 SUNMATE Elec
Package DO-201AD
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 Zener Impedance ZZT 45 Ω @ IZT = 20 mA 2
Maximum Zener Impedance ZZK 620 Ω @ IZK = 1.0 mA 2
Maximum Reverse Leakage Current IR 0.5 μA @ VR = 56.0 V 2
Maximum DC Zener Current IZM 63 mA 2
DC Power Dissipation PD 5 W at TL, lead temperature at 3/8 in (9.5 mm) from body 1
Maximum Forward Voltage VF 1.2 V at IF = 1 A 1
Maximum Thermal Resistance Junction to Ambient Air RθJA 45 K/W 1
Junction Temperature Range TJ -65 200 °C 1
Storage Temperature Range Ts -65 200 °C 1
Nominal Zener Voltage VZ 75 V @ IZT = 20 mA 2

CAD (KiCad official)

  • Symbol: 1N5373B
  • Footprint: Diode_THT:D_DO-201AD_P15.24mm_Horizontal
  • 3D model: DO-201AD (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: SUNMATE Elec datasheet (2 pp, sha256 d88a3fa58bcde066, retrieved 2026-10-15, 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