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Contents

README

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1N5355BG

onsemi · Zener Diodes · DO-201

1N5355BG from onsemi, in a DO-201. 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, indicated by the polarity band; the zener (reverse) voltage for the 1N5355B is 18 V nominal (17.1 V min to 18.9 V max) at IZT = 65 mA.
2 A passive Anode; the forward voltage is 1.2 V max at IF = 1.0 A.

Key specifications

Parameter Value
Manufacturer onsemi
Package DO-201
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
Zener Voltage VZ 17.1 18 18.9 V @ IZT = 65 mA 3
Maximum Zener Impedance ZZT 2.5 Ω @ IZT = 65 mA 3
Maximum Zener Impedance (knee) ZZK 75 Ω @ IZK = 1 mA 3
Leakage Current IR 0.5 µA @ VR = 13.7 V 3
Maximum Surge Current Ir 5.5 A TA = 25°C, 8.3 ms square wave 3
Voltage Regulation ΔVZ 0.4 V VZ measured at 10% and 50% of IZ max 3
Maximum DC Zener Current IZM 264 mA TL = 25°C at 3/8 in from body 3
Forward Voltage VF 1.2 V IF = 1.0 A 2
Zener Voltage Tolerance -5 5 % B suffix 2
Max Steady State Power Dissipation PD 5 W TL = 25°C, Lead Length = 3/8 in 1
Power Derating above 25°C 40 mW/°C Derate above 25°C 1
Operating and Storage Temperature Range TJ, Tstg -65 200 °C Max operating temp for DC is 150°C; 200°C for pulsed low duty cycle or non-repetitive 1
Junction-to-Lead Thermal Resistance θJL 25 °C/W 1
Maximum Lead Temperature for Soldering 260 °C 1/16 in from case for 10 seconds 1

CAD (KiCad official)

  • Symbol: 1N5355BG
  • Footprint: Diode_THT:D_DO-201AD_P15.24mm_Horizontal
  • 3D model: DO-201 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: onsemi datasheet (9 pp, sha256 dc23f821699c111c, retrieved 2026-10-23, 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