component
1SMB5939_R1_10001
Public Made by Adomby adom
PANJIT International 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
markdown1SMB5939_R1_10001
PANJIT International · Zener Diodes · SMB
1SMB5939_R1_10001 from PANJIT International, 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 | PANJIT International |
| 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 (Nominal Vz row, min/typ/max) | VZ | 37.05 | 39 | 40.95 | V | @ IZT = 9.6 mA | 2 |
| Maximum Zener Impedance (ZZT) | ZZT | 45 | Ω | @ IZT = 9.6 mA | 2 | ||
| Maximum Zener Impedance (ZZK) | ZZK | 900 | Ω | @ IZK = 0.25 mA | 2 | ||
| Max. Reverse Leakage Current | IR | 1 | μA | VR = 29.7 V | 2 | ||
| Peak Pulse Power Dissipation on TL=75OC (Notes A) / Derate above 75OC | PD | 1.5 | Watts | Notes A; derate above 75OC | 1 | ||
| Peak Forward Surge Current | IFSM | 10 | Amps | 8.3ms single half sine-wave superimposed on rated load | 1 | ||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | OC | 1 |
CAD (KiCad official)
- Symbol:
1SMB5939_R1_10001 - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
1smb5939-r1-10001-etched.step/1smb5939-r1-10001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1smb5939-r1-10001.step/1smb5939-r1-10001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (7 pp, sha256
6bd9fecfb369858a, 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).