component
US2MA
Public Made by Adomby adom
XUMAO Fast Recovery / High Efficiency Diodes, SMA. 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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Contents
README
markdownUS2MA
XUMAO · Fast Recovery / High Efficiency Diodes · SMA
US2MA from XUMAO, in a SMA. 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 | XUMAO |
| Package | SMA |
| 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 Recurrent Peak Reverse Voltage | VRRM | 1000 | V | 1 | |||
| Maximum RMS Voltage | VRMS | 700 | V | 1 | |||
| Maximum DC Blocking Voltage | VDC | 1000 | V | 1 | |||
| Maximum Average Forward Rectified Current | IO(AV) | 2 | A | 1 | |||
| Peak Forward Surge Current | IFSM | 50 | A | 8.3ms single half-sine-wave superimposed on rated load (JEDEC Method) | 1 | ||
| Forward Surge Current (Non-repetitive) | 100 | A | @1ms, square wave, 1 cycle, Tj=25°C | 1 | |||
| Current squared time | I2t | 10.4 | A2s | @1ms≤t≤8.3ms, Tj=25°C, rating per diode | 1 | ||
| Maximum Forward Voltage | VFM | 1.7 | V | at 2.0A DC | 1 | ||
| Maximum Reverse Current at rated DC blocking voltage, TA = 25°C | IR | 5 | uA | TA = 25°C, at rated DC blocking voltage | 1 | ||
| Maximum Reverse Current at rated DC blocking voltage, TA = 125°C | IR | 100 | uA | TA = 125°C, at rated DC blocking voltage | 1 | ||
| Operating Junction Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 1 | ||
| Typical Thermal Resistance Between junction and ambient | RθJA | 65 | °C/W | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminals:Tin Plated leads, solderable per Mil-STD-750 Method 2026 | 1 |
CAD (KiCad official)
- Symbol:
US2MA - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
us2ma-etched.step/us2ma-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);us2ma.step/us2ma.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XUMAO datasheet (5 pp, sha256
a369328d784358c9, 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).