component
1N5349B
Public Made by Adomby adom
SUNMATE Elec Zener Diodes, DO-27. 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
markdown1N5349B
SUNMATE Elec · Zener Diodes · DO-27
1N5349B from SUNMATE Elec, in a DO-27. 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 | SUNMATE Elec |
| Package | DO-27 |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Forward Voltage | VF | 1.2 | V | at IF = 1 A | 1 | ||
| Maximum Reverse Leakage Current | IR | 2 | μA | at VR = 9.1 V | 2 | ||
| Maximum Zener Impedance | ZZT | 2.5 | Ω | at IZT = 100 mA | 2 | ||
| Maximum Zener Impedance (knee) | ZZK | 125 | Ω | at IZK = 1.0 mA | 2 | ||
| Maximum DC Zener Current | IZM | 395 | mA | 2 | |||
| DC Power Dissipation | PD | 5 | W | at TL (lead temperature at 3/8 in (9.5 mm) from body) | 1 | ||
| Maximum Thermal Resistance Junction to Ambient Air | RθJA | 45 | K / W | 1 | |||
| Junction Temperature Range | TJ | -65 | 200 | °C | 1 | ||
| Storage Temperature Range | TS | -65 | 200 | °C | 1 | ||
| Nominal Zener Voltage | VZ | 12 | V | at IZT = 100 mA | 2 |
CAD (KiCad official)
- Symbol:
1N5349B - Footprint:
Diode_THT:D_DO-27_P15.24mm_Horizontal - 3D model: DO-27 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SUNMATE Elec datasheet (2 pp, sha256
d88a3fa58bcde066, retrieved 2026-10-21, 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).