component
MA3075WALT1G
Public Made by Adomby adom
onsemi ESD Protection Devices, SOT-23. Pinout cross-checked by two models against the datasheet, 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
markdownMA3075WALT1G
onsemi · ESD Protection Devices · SOT-23
MA3075WALT1G from onsemi, in a SOT-23. 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 | CATHODE | passive | Cathode of the first of the two unidirectional zener junctions; the dual common-anode design protects two separate lines in one package. |
| 2 | CATHODE | passive | Cathode of the second of the two unidirectional zener junctions; the dual common-anode design protects two separate lines in one package. |
| 3 | ANODE | passive | Common anode shared by both zener junctions, which provides transient overvoltage and ESD protection for two lines. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener Voltage | VZ | 7.2 | 7.5 | 7.9 | V | IZ = 5 mA | 2 |
| Temperature Coefficient of Zener Voltage | SZ | 2.5 | 4 | 5.3 | mV/°C | IZ = 5 mA | 2 |
| Operating Resistance | RZK | 120 | Ω | IZ = 0.5 mA | 2 | ||
| Operating Resistance | RZ | 6 | 15 | Ω | IZ = 5 mA | 2 | |
| Reverse Current | IR1 | 1 | µA | VR = 5 V | 2 | ||
| Reverse Current | IR2 | 60 | µA | VR = 6.5 V | 2 | ||
| Forward Voltage | VF | 0.8 | 0.9 | V | IF = 10 mA | 2 | |
| Terminal Capacitance | Ct | 80 | pF | VR = 0 V | 2 | ||
| Peak Power Dissipation | Ppk | 15 | W | @ 100 µs, non-repetitive (Note 1) | 1 | ||
| Steady State Power Dissipation | PD | 225 | mW | Mounted on FR-5 board (Note 2); derate 1.8 mW/°C above 25°C | 1 | ||
| Thermal Resistance, Junction-to-Ambient | RθJA | 556 | °C/W | 1 | |||
| Operating Junction and Storage Temperature Range | TJ, Tstg | -55 | 150 | °C | 1 | ||
| ESD Discharge, Human Body Model | VPP | 16 | kV | MIL STD 883C Method 3015-6 | 1 | ||
| ESD Discharge, Air Discharge | VPP | 30 | kV | IEC61000-4-2, Air Discharge | 1 | ||
| ESD Discharge, Contact Discharge | VPP | 30 | kV | IEC61000-4-2, Contact Discharge | 1 |
CAD (KiCad official)
- Symbol:
MA3075WALT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ma3075walt1g-etched.step/ma3075walt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ma3075walt1g.step/ma3075walt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (6 pp, sha256
d8d89188efed525f, retrieved 2026-11-04, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).