component
P4SMA440CA
Public Made by Adomby adom
UMW ESD And Surge Protection (TVS/ESD), 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
markdownP4SMA440CA
UMW · ESD And Surge Protection (TVS/ESD) · SMA(DO-214AC)
P4SMA440CA from UMW, 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 | UMW |
| Package | SMA(DO-214AC) |
| Category | Circuit Protection |
| 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 Pulse Power Dissipation | PPPM | 400 | W | TA=25 °C, TP=1ms (Note 1) | 2 | ||
| ESD Voltage (Contact) | VESD1 | -30 | 30 | kV | Contact, per IEC61000-4-2 | 2 | |
| ESD Voltage (Air) | VESD2 | -30 | 30 | kV | Air, per IEC61000-4-2 | 2 | |
| Steady State Power Dissipation | PD | 3.3 | W | TL = 75°C, lead lengths .375" 9.5mm (Note 2) | 2 | ||
| Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | °C | 2 | ||
| Reverse Stand-Off Voltage | VRWM | 376 | V | 4 | |||
| Breakdown Voltage (min) | VBR | 418 | V | IT = 1 mA | 4 | ||
| Breakdown Voltage (max) | VBR | 462 | V | IT = 1 mA | 4 | ||
| Maximum Clamping Voltage | VC | 602 | V | @ IPP = 0.7 A | 4 | ||
| Peak Pulse Current | IPP | 0.7 | A | 4 | |||
| Reverse Leakage Current | IR | 1 | µA | @ VRWM | 4 |
CAD (KiCad official)
- Symbol:
P4SMA440CA - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
p4sma440ca-etched.step/p4sma440ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);p4sma440ca.step/p4sma440ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (8 pp, sha256
802ad66f7b356d62, retrieved 2026-10-16, 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).