component
ASM05
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech ESD And Surge Protection (TVS/ESD), 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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Contents
README
markdownASM05
Yangzhou Yangjie Elec Tech · ESD And Surge Protection (TVS/ESD) · SOT-23
ASM05 from Yangzhou Yangjie Elec Tech, 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 | I/O1 | passive | Protected line 1 of the two unidirectional lines, with 5V max reverse working voltage and 8V max clamping at 1A (8/20μs) referenced to ground. |
| 2 | I/O2 | passive | Protected line 2 of the two unidirectional lines, with 5V max reverse working voltage and 14V max clamping at 23A (8/20μs) referenced to ground. |
| 3 | GND | power_in | Common ground connection of the TVS array, which is the reference for the I/O pin clamping and leakage specifications. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| 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 |
|---|---|---|---|---|---|---|---|
| Forward Voltage | VF | 0.2 | 0.8 | 1.2 | V | IF=10mA | 1 |
| Reverse Working Voltage | VRWM | 5 | V | 1 | |||
| Reverse Leakage Current | IR | 0.5 | uA | VRWM=5V any I/O pin to ground | 1 | ||
| Breakdown Voltage | V(BR) | 6 | V | IT=1mA | 1 | ||
| Clamping Voltage | VC | 8 | V | IPP=1A (8 x 20μs pulse) any I/O pin to ground | 1 | ||
| Clamping Voltage | VC | 14 | V | IPP=23A (8 x 20μs pulse) any I/O pin to ground | 1 | ||
| Junction Capacitance | CJ | 160 | pF | VR=0V,f=1MHz, any I/O pin to ground | 1 | ||
| Operating Temperature Range | TJ | -55 | 125 | ℃ | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 1 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | 30 | KV | IEC 61000-4-2 (Air) | 1 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 | 30 | KV | IEC 61000-4-2 (Contact) | 1 | |
| Peak Pulse Power (8/20μs) | PPk | 320 | W | 8/20μs | 1 | ||
| Peak Pulse Current (8/20μs) | IPP | 23 | A | 8/20μs | 1 | ||
| Thermal Resistance Junction-to-Ambient (Typical) | RθJ-A | 357 | ℃/W | 2 | |||
| Thermal Resistance Junction-to-Case (Typical) | RθJ-C | 143 | ℃/W | 2 |
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 | ●Lead Finish: Matte Tin ●Case Material: “Green” Molding Compound. | 1 |
CAD (KiCad official)
- Symbol:
ASM05 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
asm05-etched.step/asm05-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);asm05.step/asm05.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (4 pp, sha256
fce13fcb584d6f95, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).