component
PSR05-LF-T7
Public Made by Adomby adom
UMW ESD And Surge Protection (TVS/ESD), 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
markdownPSR05-LF-T7
UMW · ESD And Surge Protection (TVS/ESD) · SOT-143
PSR05-LF-T7 from UMW, 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 | GND | power_in | Ground reference pin for the TVS diode array; the datasheet gives ESD protection of ±30 kV (IEC 61000-4-2) and clamping performance referenced to this pin. |
| 2 | I/O1 | bidirectional | Protected signal line 1 of the low-capacitance TVS array, with junction capacitance of 5 to 10 pF between I/O pins and ground at VR=0 V, 1 MHz. |
| 3 | I/O2 | bidirectional | Protected signal line 2 of the low-capacitance TVS array, with junction capacitance between I/O pins listed at 3 to 5 pF at VR=0 V, 1 MHz. |
| 4 | VDD | power_in | Supply-side pin of the TVS array, rated for a 5 V operating voltage per the datasheet features list. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
PSR05-LF-T7 - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
psr05-lf-t7-etched.step/psr05-lf-t7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);psr05-lf-t7.step/psr05-lf-t7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (6 pp, sha256
3c3932194998e01e, retrieved 2026-10-09, tier: lcsc) - 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).