component
UA1M
Public Made by Adomby adom
SMC(Sangdest Microelectronicstronic (Nanjing)) Avalanche Diodes, SMA(DO-214AC). 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
markdownUA1M
SMC(Sangdest Microelectronicstronic (Nanjing)) · Avalanche Diodes · SMA(DO-214AC)
UA1M from SMC(Sangdest Microelectronicstronic (Nanjing)), in a SMA(DO-214AC). 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 | SMC(Sangdest Microelectronicstronic (Nanjing)) |
| Package | SMA(DO-214AC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Repetitive Reverse Voltage | VRRM | 1000 | V | 1 | |||
| Surge Peak Reverse Voltage | VRSM | 1000 | V | 1 | |||
| Max. Average Forward Current | IF | 1 | A | @TL =100°C | 1 | ||
| Peak Forward Surge Current | IFSM | 30 | A | 8.3ms Single half sine-wave superimposed on rated load (JEDEC Method) | 1 | ||
| Maximum Leakage Current | IR | 3 | µA | @TA = 25°C | 1 | ||
| Non-Repetitive Avalanche Energy | EAS | 20 | mJ | TJ = 25°C, IAS=1.0mA, L=285mH (Note 3) | 1 | ||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | °C | 1 | ||
| Max. thermal resistance junction to ambient | RΘJA | 70 | K/W | Mounted on P.C. Board with 8.0mm2 lead area (Note 2) | 1 |
CAD (KiCad official)
- Symbol:
UA1M - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
ua1m-etched.step/ua1m-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ua1m.step/ua1m.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SMC(Sangdest Microelectronicstronic (Nanjing)) datasheet (4 pp, sha256
e7ee40ef832a0c31, 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).