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1N5374B

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SUNMATE Elec Zener Diodes, DO-201AD. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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1N5374B

SUNMATE Elec · Zener Diodes · DO-201AD

1N5374B 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, identified by the cathode band on the DO-201AD axial package; the zener is operated reverse-biased with this terminal positive.
2 A passive Anode terminal of the axial leaded zener diode (lead opposite the cathode band); forward voltage VF is 1.2 V max at IF = 1 A.

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
DC Power Dissipation PD 5 W at TL (lead temperature at 3/8" (9.5mm) from body) 1
Maximum Forward Voltage VF 1.2 V IF = 1 A 1
Thermal Resistance Junction to Ambient RθJA 45 K / W 1
Junction Temperature Range TJ -65 200 °C 1
Storage Temperature Range Ts -65 200 °C 1
Maximum Zener Impedance ZZT 45 Ω @ IZT = 20 mA 2
Maximum Zener Knee 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
Nominal Zener Voltage VZ 75 V @ IZT = 20 mA 2
Zener Test Current IZT 20 mA 2

CAD (KiCad official)

  • Symbol: 1N5374B
  • 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 2026-10-22, tier: lcsc)
  • 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