component
1SMB5917BT3G-MS
Public Made by Adomby adom
MSKSEMI 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
markdown1SMB5917BT3G-MS
MSKSEMI · Zener Diodes · SMB
1SMB5917BT3G-MS from MSKSEMI, 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 | MSKSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener voltage (nominal 4.7 V, ±5%) | VZ | 4.46 | 4.7 | 4.94 | V | @ IZT = 79.8 mA; TL = 30°C unless otherwise noted | 4 |
| Maximum Zener impedance | ZZT | 5 | Ω | @ IZT = 79.8 mA; IZ(ac) = 0.1 IZ(dc), 60 Hz (Note 4) | 4 | ||
| Maximum Zener impedance | ZZK | 500 | Ω | @ IZK = 1 mA; IZ(ac) = 0.1 IZ(dc), 60 Hz (Note 4) | 4 | ||
| Reverse leakage current | IR | 5 | μA | @ VR = 1.5 V | 4 | ||
| Maximum DC Zener current | IZM | 319 | mA | 4 | |||
| Forward voltage | VF | 1.5 | V | @ IF = 200 mA (dc), for all types | 3 | ||
| Zener voltage tolerance (type number designation) | -5 | 5 | % | Type numbers indicate ±5% tolerance (Note 2) | 4 | ||
| Maximum steady state power dissipation | PD | 3 | W | TL = 75°C, measured at zero lead length | 2 | ||
| Maximum steady state power dissipation | PD | 550 | mW | TA = 25°C (Note 1, FR-4 board, recommended footprint) | 2 | ||
| Thermal resistance, junction-to-lead | RθJL | 40 | °C/W | Junction-to-lead, measured at zero lead length | 2 | ||
| Thermal resistance, junction-to-ambient | RθJA | 226 | °C/W | Junction-to-ambient (Note 1, FR-4 board) | 2 | ||
| Operating and storage temperature range | TJ, Tstg | -65 | 150 | °C | 2 | ||
| Maximum case temperature for soldering purposes | 260 | °C | for 10 seconds | 2 | |||
| ESD rating, Human Body Model | 16 | kV | Class 3 per HBM; datasheet prints '> 16 kV' | 2 |
CAD (KiCad official)
- Symbol:
1SMB5917BT3G-MS - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
1smb5917bt3g-ms-etched.step/1smb5917bt3g-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1smb5917bt3g-ms.step/1smb5917bt3g-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (8 pp, sha256
d1db003dcf102a3c, 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).