component
SRV05-4LA 4A
Public Made by Adomby adom
DOWO ESD And Surge Protection (TVS/ESD), SOT-23-6L. 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
markdownSRV05-4LA 4A
DOWO · ESD And Surge Protection (TVS/ESD) · SOT-23-6L
SRV05-4LA 4A from DOWO, in a SOT-23-6L. 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 | ESD-protected I/O line steered to GND/Vcc by diodes; I/O-to-GND capacitance 0.5pF typ., 0.8pF max, with working voltage 5V. |
| 2 | GND | power_in | Ground reference pin of the TVS array, connected to the central Zener diode and the lower steering diodes. |
| 3 | I/O2 | passive | ESD-protected I/O line steered to GND/Vcc by diodes; I/O-to-GND capacitance 0.5pF typ., 0.8pF max, with working voltage 5V. |
| 4 | I/O3 | passive | ESD-protected I/O line steered to GND/Vcc by diodes; I/O-to-GND capacitance 0.5pF typ., 0.8pF max, with working voltage 5V. |
| 5 | Vcc | power_in | Positive rail of the TVS array connected to the upper steering diodes and the Zener cathode; reverse stand-off voltage 5V. |
| 6 | I/O4 | passive | ESD-protected I/O line steered to GND/Vcc by diodes; I/O-to-GND capacitance 0.5pF typ., 0.8pF max, with working voltage 5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DOWO |
| Package | SOT-23-6L |
| Category | Circuit Protection |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
SRV05-4LA 4A - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files:
srv05-4la-4a-etched.step/srv05-4la-4a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);srv05-4la-4a.step/srv05-4la-4a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOWO datasheet (4 pp, sha256
c8ad3cb46de59976, retrieved 2026-10-09, 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).