component

RCLAMP0554S

Public Made by Adom

by adom

Leiditech ESD And Surge Protection (TVS/ESD), SOT-26. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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RCLAMP0554S

Leiditech · ESD And Surge Protection (TVS/ESD) · SOT-26

RCLAMP0554S from Leiditech, in a SOT-26. 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/O_1 passive Data line protection pin (I/O pin 1) that steers transients through the internal diodes to the REF1 and REF2 references; the datasheet gives Junction Capacitance of 1.5 pF max between I/O pins and 3.0 pF typ / 5.0 pF max to ground at VR = 0V, 1MHz.
2 REF1 power_in Negative reference (REF1) that should be connected directly to a board ground plane with the shortest possible path to minimize parasitic inductance.
3 I/O_3 passive Data line protection pin (I/O pin 3) that steers transients through the internal diodes to the REF1 and REF2 references; the datasheet gives Junction Capacitance of 1.5 pF max between I/O pins and 3.0 pF typ / 5.0 pF max to ground at VR = 0V, 1MHz.
4 I/O_4 passive Data line protection pin (I/O pin 4) that steers transients through the internal diodes to the REF1 and REF2 references; the datasheet gives Junction Capacitance of 1.5 pF max between I/O pins and 3.0 pF typ / 5.0 pF max to ground at VR = 0V, 1MHz.
5 REF2 power_in Positive reference (REF2), connected to VCC in the application circuits; the Reverse Working Voltage is 5 V and the breakdown voltage (1 mA) is 6 V min measured from pin 5 to pin 2.
6 I/O_6 passive Data line protection pin (I/O pin 6) that steers transients through the internal diodes to the REF1 and REF2 references; the datasheet gives Junction Capacitance of 1.5 pF max between I/O pins and 3.0 pF typ / 5.0 pF max to ground at VR = 0V, 1MHz.

Key specifications

Parameter Value
Manufacturer Leiditech
Package SOT-26
Category Circuit Protection
Pins 6

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Peak Pulse Power (8/20µs) Ppp 500 W 8/20µs 1
ESD per IEC 61000-4-2 (Air) VESD -30 30 kV ESD per IEC 61000-4-2 (Air) 1
ESD per IEC 61000-4-2 (Contact) -30 30 kV ESD per IEC 61000-4-2 (Contact) 1
Operating Temperature Range TJ -55 125 ℃ 1
Storage Temperature Range TSTJ -55 150 ℃ 1
Junction Capacitance (any I/O pin to ground) CJ 3 5 pF VR = 0V, f = 1MHz, any I/O pin to ground 2
Reverse Working Voltage VRWM 5 V 2
Breakdown Voltage VBR 6 V IT = 1mA, Pin 5 to Pin 2 2
Reverse Leakage Current IR 1 µA VRWM = 5V, Pin 5 to Pin 2 2
Forward Voltage VF 1.2 V IF = 15mA 2
Clamping Voltage VC 12 V IPP = 1A (8 x 20µs pulse), any I/O pin to ground 2
Clamping Voltage VC 20 V IPP = 25A (8 x 20µs pulse), any I/O pin to ground 2
Junction Capacitance (between I/O pins) CJ 1.5 pF VR = 0V, f = 1MHz, between I/O pins 2

CAD (KiCad official)

  • Symbol: RCLAMP0554S
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-26 (KiCad packages3D, STEP)
  • 3D model files: rclamp0554s-etched.step / rclamp0554s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rclamp0554s.step / rclamp0554s.glb are the bare package body.

Provenance

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

  • Datasheet: Leiditech datasheet (8 pp, sha256 1c014f57e86b0e7e, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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