component
1SMB5955B-13
Public Made by Adomby adom
Diodes Incorporated Zener Diodes, SMB. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown1SMB5955B-13
Diodes Incorporated · Zener Diodes · SMB
1SMB5955B-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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
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 | 171 | 180 | 189 | V | @ IZT = 2.1 mA | 3 |
| Maximum Zener Impedance (dynamic) | ZZT | 900 | Ω | @ IZT = 2.1 mA | 3 | ||
| Maximum Zener Impedance (knee) | ZZK | 7000 | Ω | @ IZK = 0.25 mA | 3 | ||
| Reverse Current | IR | 1 | µA | @ VR = 136.8 V | 3 | ||
| Maximum Reverse Current (Zener current) | IZM | 8 | mA | 3 | |||
| Forward Voltage | VF | 1.5 | V | @ IF = 200mA | 2 | ||
| Power Dissipation | PD | 3 | W | @ TL = +75°C | 2 | ||
| Derate Above +75°C | PD | 40 | mW/°C | Derate above +75°C (Note 5) | 2 | ||
| Thermal Resistance Junction to Terminal | RϴJT | 25 | °C/W | Junction to terminal (Note 5) | 2 | ||
| Power Dissipation | PD | 550 | mW | @ TA = +25°C (Note 5) | 2 | ||
| Derate Above +25°C | PD | 4.4 | mW/°C | Derate above +25°C (Note 5) | 2 | ||
| Thermal Resistance Junction to Ambient | RϴJA | 226 | °C/W | Junction to ambient (Note 5) | 2 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -65 | 150 | °C | Operating and storage | 2 |
CAD (KiCad official)
- Symbol:
1SMB5955B-13 - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
1smb5955b-13-etched.step/1smb5955b-13-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1smb5955b-13.step/1smb5955b-13.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (7 pp, sha256
c06473e556bd519c, retrieved 2026-10-15, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).