component
SESR70
Public Made by Adomby adom
SEMIWARE ESD Protection Devices, SOT-143. 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
markdownSESR70
SEMIWARE · ESD Protection Devices · SOT-143
SESR70 from SEMIWARE, in a SOT-143. 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 | VN | power_in | Negative supply/ground rail of the steering diode array; transient voltage on the I/O lines is steered to this pin (VRWM 70 V max per line, IPP 24 A at 8/20µs). |
| 2 | I/O 1 | passive | Protected line 1 (low capacitance, 5 pF typ.) connected to the steering diodes, rated for IEC 61000-4-2 ±15 kV air and ±8 kV contact. |
| 3 | I/O 2 | passive | Protected line 2 (low capacitance, 5 pF typ.) connected to the steering diodes, rated for IEC 61000-4-4 EFT 40 A (5/50 ns). |
| 4 | VP | power_in | Positive supply rail of the steering diode array; transient voltage on the I/O lines is steered to this pin (VRWM 70 V max, VBR 100 V min). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SEMIWARE |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
SESR70 - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
sesr70-etched.step/sesr70-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sesr70.step/sesr70.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SEMIWARE datasheet (3 pp, sha256
e380737500a61db8, retrieved 2026-10-31, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(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).