component
1SMB5941B-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.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 6d ago |
| viewers | 6d ago |
| 1smb5941b-13-etched.glb | 6d ago |
| 1smb5941b-13-etched.step | 6d ago |
| 1smb5941b-13-hero.glb | 6d ago |
| 1smb5941b-13-hero.overlay.json | 6d ago |
| 1smb5941b-13.glb | 6d ago |
| 1smb5941b-13.kicad_mod | 6d ago |
| 1smb5941b-13.kicad_sym | 6d ago |
| 1smb5941b-13.lbr | 6d ago |
| 1smb5941b-13.step | 6d ago |
| package.json | 6d ago |
| page.json | 6d ago |
| README.md | 6d ago |
1SMB5941B-13
Diodes Incorporated · Zener Diodes · SMB
1SMB5941B-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) at IZT | VZ | 44.65 | 47 | 49.35 | V | IZT = 8 mA; pulse test (Note 6) | 3 |
| VZ tolerance (standard) | -5 | 5 | % | Standard VZ tolerance per Features; B suffix decode not printed in the datasheet text | 1 | ||
| Maximum zener impedance at IZT | ZZT | 67 | Ω | @ IZT = 8 mA; AC = 0.1 IZ(DC), 60 Hz | 3 | ||
| Maximum zener impedance at IZK | ZZK | 1000 | Ω | @ IZK = 0.25 mA; AC = 0.1 IZ(DC), 60 Hz | 3 | ||
| Maximum reverse current | IR | 1 | µA | @ VR = 35.8 V | 3 | ||
| Maximum zener current | IZM | 31 | mA | Maximum Reverse Current IZM column, per part table | 3 | ||
| Forward voltage | VF | 1.5 | V | @ IF = 200 mA | 2 | ||
| Power dissipation at TL = +75°C | PD | 3 | W | @ TL = +75°C (Note 5) | 2 | ||
| Derating above +75°C (TL) | PD | 40 | mW/°C | Derate above +75°C (Note 5) | 2 | ||
| Power dissipation at TA = +25°C | PD | 550 | mW | @ TA = +25°C (Note 5) | 2 | ||
| Derating above +25°C (TA) | PD | 4.4 | mW/°C | Derate above +25°C (Note 5) | 2 | ||
| Thermal resistance junction to terminal | RθJT | 25 | °C/W | Device mounted on FR-4 PCB (Note 5) | 2 | ||
| Thermal resistance junction to ambient | RθJA | 226 | °C/W | Device mounted on FR-4 PCB (Note 5) | 2 | ||
| Operating and storage temperature range | TJ, TSTG | -65 | 150 | °C | 2 |
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:
1SMB5941B-13 - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
1smb5941b-13-etched.step/1smb5941b-13-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1smb5941b-13.step/1smb5941b-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 2026-10-16, 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).