component
1N5349BG
Public Made by Adomby adom
onsemi Zener Diodes, DO-201. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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1N5349BG
onsemi · Zener Diodes · DO-201
1N5349BG from onsemi, in a DO-201. 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 | DO-201 |
| 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 (VZ), min/nom/max | VZ | 11.4 | 12 | 12.6 | V | @ IZT = 100 mA (Note 8) | 3 |
| Zener Impedance ZZT | ZZT | 2.5 | Ω | @ IZT = 100 mA | 3 | ||
| Zener Impedance ZZK | ZZK | 125 | Ω | @ IZK = 1 mA | 3 | ||
| Reverse Leakage Current IR | IR | 2 | µA | @ VR = 9.1 V (Note 9) | 3 | ||
| Maximum Surge Current (non-recurrent square wave) | IR | 7.5 | A | TA = 25°C, PW = 8.3 ms (Note 9) | 3 | ||
| Reverse Zener Voltage Change (regulation) | VZ | 0.25 | V | VZ at 10% and 50% of IZ max, 40 ±10 ms (Note 10) | 3 | ||
| Maximum DC Zener Current | IZM | 395 | mA | TL = 25°C at 3/8 in from device body (Note 11) | 3 | ||
| Forward Voltage | VF | 1.2 | V | @ IF = 1.0 A (all types) | 2 | ||
| Zener voltage tolerance (B suffix, JEDEC type number) | -5 | 5 | % | B-suffix device; JEDEC type number designates ±5% (Note 7) | 3 | ||
| Max Steady State Power Dissipation | PD | 5 | W | TL = 25°C, lead length 3/8 in | 1 | ||
| Operating and Storage Temperature Range (lower limit) | TJ, Tstg | -65 | °C | 1 | |||
| Operating and Storage Temperature Range (upper limit) | TJ, Tstg | 200 | °C | Note 1: max 150°C for DC; 200°C for pulsed low duty cycle or non-repetitive | 1 | ||
| Junction-to-Lead Thermal Resistance | RθJL | 25 | °C/W | Lead length 3/8 in (as printed in Maximum Ratings table) | 1 |
CAD (KiCad official)
- Symbol:
1N5349BG - Footprint:
Diode_THT:D_DO-201AD_P15.24mm_Horizontal - 3D model: DO-201 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (9 pp, sha256
dc23f821699c111c, retrieved 2026-10-14, 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).