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1SMB5950B-13

Public Made by Adom

by adom

Diodes Incorporated Zener Diodes, SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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1SMB5950B-13

Diodes Incorporated · Zener Diodes · SMB

1SMB5950B-13 from Diodes Incorporated, in a SMB. 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, marked by the cathode band on the package; the 1SMB5950B has a nominal zener voltage of 110V (104.5V min, 115.5V max) at IZT = 3.4mA.
2 A passive Anode terminal of the zener diode; forward voltage is 1.5V max at IF = 200mA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SMB
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 104.5 110 115.5 V @ IZT = 3.4 mA, TA = +25°C 3
Test Current IZT 3.4 mA TA = +25°C 3
Maximum Zener Impedance ZZT 300 Ω @ IZT 3
Maximum Zener Impedance (knee) ZZK 4000 Ω @ IZK = 0.25 mA 3
Maximum Reverse Current IR 1 µA @ VR = 83.6 V 3
Maximum Zener Current IZM 13 mA 3
Forward Voltage VF 1.5 V @ IF = 200mA 2
Power Dissipation PD 3 W @ TL = +75°C, derate 40 mW/°C above +75°C, Note 5 2
Power Dissipation PD 550 mW @ TA = +25°C, derate 4.4 mW/°C above +25°C, Note 5 2
Thermal Resistance, Junction to Terminal RϴJT 25 °C/W Note 5 2
Thermal Resistance, Junction to Ambient RϴJA 226 °C/W Note 5 2
Operating and Storage Temperature Range TJ, TSTG -65 150 °C 2
Standard VZ Tolerance -5 5 % 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 Alloy tin • Copper Alloy Leadframe with Lead-Free Plating (Matte Tin 1

CAD (KiCad official)

  • Symbol: 1SMB5950B-13
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: 1smb5950b-13-etched.step / 1smb5950b-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1smb5950b-13.step / 1smb5950b-13.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 c06473e556bd519c, retrieved 2026-10-22, 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