component
1SMB5929BT3G
Public Made by Adomby adom
onsemi 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
markdown1SMB5929BT3G
onsemi · Zener Diodes · SMB
1SMB5929BT3G from onsemi, 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 | onsemi |
| 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 | 14.25 | 15 | 15.75 | V | IZT = 25 mA; TL = 30C | 3 |
| Zener voltage tolerance (type number designation) | -5 | 5 | % | Type numbers listed indicate a tolerance of 5% (Note 2) | 3 | ||
| Maximum Zener impedance | ZZT | 9 | ohm | @ IZT = 25 mA; IZ(ac) = 0.1 IZ(dc), 60 Hz | 3 | ||
| Maximum Zener impedance | ZZK | 600 | ohm | @ IZK = 0.25 mA; IZ(ac) = 0.1 IZ(dc), 60 Hz | 3 | ||
| Maximum DC Zener current | IZM | 100 | mA | 3 | |||
| Forward voltage | VF | 1.5 | V | IF = 200 mA(dc) | 3 | ||
| Maximum steady state power dissipation | PD | 3 | W | TL = 75C, measured at zero lead length | 1 | ||
| Maximum steady state power dissipation | PD | 550 | mW | TA = 25C; FR-4 board, recommended footprint (Note 1) | 1 | ||
| Operating and storage temperature range | TJ, Tstg | -65 | 150 | C | 1 | ||
| Thermal resistance, junction-to-lead | RJL | 40 | C/W | Measured at zero lead length | 1 | ||
| Thermal resistance, junction-to-ambient | RJA | 226 | C/W | FR-4 board, recommended footprint (Note 1) | 1 | ||
| Power derating above 75C (junction-to-lead) | PD | 25 | mW/C | Derate above 75C | 1 | ||
| Power derating above 25C (junction-to-ambient) | PD | 4.4 | mW/C | Derate above 25C | 1 |
CAD (KiCad official)
- Symbol:
1SMB5929BT3G - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
1smb5929bt3g-etched.step/1smb5929bt3g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1smb5929bt3g.step/1smb5929bt3g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (6 pp, sha256
52985d4757f03142, retrieved 2026-10-21, tier: manufacturer) - 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).