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GBLC03C-LF-T7

ProTek Devices · ESD And Surge Protection (TVS/ESD) · SOD-323

GBLC03C-LF-T7 from ProTek Devices, in a SOD-323. 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 1 passive Bidirectional TVS terminal (GBLC03C, no polarity) protecting one line, with 3.3V rated stand-off voltage, 4.0V minimum breakdown at 1mA and 7.0V maximum clamping at 1A.
2 2 passive Bidirectional TVS terminal (GBLC03C, no polarity) connected to the protected line or ground return, with 3pF typical capacitance at 0V, 1MHz and 5µA maximum leakage at VWM.

Key specifications

Parameter Value
Manufacturer ProTek Devices
Package SOD-323
Category Circuit Protection
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Minimum Breakdown Voltage V(BR) 4 V @ 1mA 2
Maximum Clamping Voltage VC 7 V @ IP = 1A (Fig. 2) 2
Maximum Leakage Current ID 5 µA @ VWM 2
Operating Temperature TA -55 150 °C @ 25°C unless otherwise specified 2
Storage Temperature TSTG -55 150 °C @ 25°C unless otherwise specified 2
Peak Pulse Power PPP 350 Watts tp = 8/20µs 2
Rated Stand-Off Voltage VWM 3.3 V 2
Typical Capacitance C 3 pF @0V, 1MHz 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-Free Pure-Tin Plating (Annealed) • Solder Reflow Temperature: 1

CAD (KiCad official)

  • Symbol: GBLC03C-LF-T7
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: gblc03c-lf-t7-etched.step / gblc03c-lf-t7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gblc03c-lf-t7.step / gblc03c-lf-t7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: ProTek Devices datasheet (7 pp, sha256 a9b0c723dce2e746, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF