component
RCLAMP0582B.TCT
Public Made by Adomby adom
SEMTECH ESD And Surge Protection (TVS/ESD), SOT-523. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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RCLAMP0582B.TCT
SEMTECH · ESD And Surge Protection (TVS/ESD) · SOT-523
RCLAMP0582B.TCT from SEMTECH, in a SOT-523. 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 | Pin 1 (data line) | passive | Connects to one protected data line (pin 1 to pin 3 capacitance is 1.2pF max at VR=0V, f=1MHz, and reverse stand-off voltage VRWM is 5V). |
| 2 | Pin 2 (data line) | passive | Connects to the second protected data line (pin 1 or pin 2 to pin 3 has VRWM of 5V and 1.2pF max junction capacitance). |
| 3 | Pin 3 (GND) | power_in | Ground connection that should be made directly to a ground plane, with the path kept as short as possible to minimize parasitic inductance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SEMTECH |
| Package | SOT-523 |
| Category | Circuit Protection |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage | VRWM | 5 | V | Pin 1 or Pin 2 to Pin 3 | 2 | ||
| Reverse Breakdown Voltage | VBR | 6 | 11 | V | IBR = 1mA, Pin 1 to Pin 2 to Pin 3 | 2 | |
| Reverse Leakage Current at 25°C | IR | 0.1 | µA | VRWM = 5V, T=25°C, Pin 1 or Pin 2 to Pin 3 and between Pin 1 and 2 | 2 | ||
| Reverse Leakage Current at 105°C | IR | 0.3 | µA | VRWM = 5V, T=105°C, Pin 1 or Pin 2 to Pin 3 and between Pin 1 and 2 | 2 | ||
| Junction Capacitance (Pin 1 to Pin 2) | CJ | 0.5 | 0.8 | pF | VR = 0V, f = 1MHz, Pin 1 to Pin 2 | 2 | |
| Junction Capacitance (Pin 1 or Pin 2 to Pin 3) | CJ | 1.2 | pF | VR = 0V, f = 1MHz, Pin 1 or Pin 2 to Pin 3 | 2 | ||
| Clamping Voltage (8/20µs, IPP = 5A) | VC | 15 | V | tp = 8/20µs, Pin 1 or Pin 2 to Pin 3, IPP = 5A | 2 | ||
| Clamping Voltage (8/20µs, IPP = 15A) | VC | 20 | V | tp = 8/20µs, Pin 1 or Pin 2 to Pin 3, IPP = 15A | 2 | ||
| ESD Clamping Voltage (IPP = 4A) | VC | 14 | V | tp = 0.2/100ns, Pin 1 or Pin 2 to Pin 3, IPP = 4A | 2 | ||
| ESD Clamping Voltage (IPP = 16A) | VC | 20 | V | tp = 0.2/100ns, Pin 1 or Pin 2 to Pin 3, IPP = 16A | 2 | ||
| Dynamic Resistance | RDYN | 0.52 | Ω | tp = 0.2/100ns, Pin 1 or Pin 2 to Pin 3 | 2 | ||
| Peak Pulse Power | PPK | 300 | W | tp = 8/20µs | 2 | ||
| Peak Pulse Current | IPP | 15 | A | tp = 8/20µs | 2 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | 30 | kV | IEC 61000-4-2 air discharge | 2 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -25 | 25 | kV | IEC 61000-4-2 contact discharge | 2 | |
| Operating Temperature | TJ | -40 | 105 | °C | 2 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 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 Finish: Matte Tin • Pb-Free, Halogen Free, RoHS/WEEE Compliant | 1 |
CAD (KiCad official)
- Symbol:
RCLAMP0582B.TCT - Footprint:
Package_TO_SOT_SMD:SOT-523 - 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
rclamp0582b-tct-etched.step/rclamp0582b-tct-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rclamp0582b-tct.step/rclamp0582b-tct.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SEMTECH datasheet (8 pp, sha256
58d80ffc5519d1a6, retrieved 2026-10-20, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# RCLAMP0582B.TCT
**SEMTECH** · ESD And Surge Protection (TVS/ESD) · SOT-523
RCLAMP0582B.TCT from SEMTECH, in a SOT-523. 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 | Pin 1 (data line) | passive | Connects to one protected data line (pin 1 to pin 3 capacitance is 1.2pF max at VR=0V, f=1MHz, and reverse stand-off voltage VRWM is 5V). |
| 2 | Pin 2 (data line) | passive | Connects to the second protected data line (pin 1 or pin 2 to pin 3 has VRWM of 5V and 1.2pF max junction capacitance). |
| 3 | Pin 3 (GND) | power_in | Ground connection that should be made directly to a ground plane, with the path kept as short as possible to minimize parasitic inductance. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SEMTECH |
| Package | SOT-523 |
| Category | Circuit Protection |
| Pins | 3 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage | VRWM | | | 5 | V | Pin 1 or Pin 2 to Pin 3 | 2 |
| Reverse Breakdown Voltage | VBR | 6 | | 11 | V | IBR = 1mA, Pin 1 to Pin 2 to Pin 3 | 2 |
| Reverse Leakage Current at 25°C | IR | | | 0.1 | µA | VRWM = 5V, T=25°C, Pin 1 or Pin 2 to Pin 3 and between Pin 1 and 2 | 2 |
| Reverse Leakage Current at 105°C | IR | | | 0.3 | µA | VRWM = 5V, T=105°C, Pin 1 or Pin 2 to Pin 3 and between Pin 1 and 2 | 2 |
| Junction Capacitance (Pin 1 to Pin 2) | CJ | | 0.5 | 0.8 | pF | VR = 0V, f = 1MHz, Pin 1 to Pin 2 | 2 |
| Junction Capacitance (Pin 1 or Pin 2 to Pin 3) | CJ | | | 1.2 | pF | VR = 0V, f = 1MHz, Pin 1 or Pin 2 to Pin 3 | 2 |
| Clamping Voltage (8/20µs, IPP = 5A) | VC | | 15 | | V | tp = 8/20µs, Pin 1 or Pin 2 to Pin 3, IPP = 5A | 2 |
| Clamping Voltage (8/20µs, IPP = 15A) | VC | | 20 | | V | tp = 8/20µs, Pin 1 or Pin 2 to Pin 3, IPP = 15A | 2 |
| ESD Clamping Voltage (IPP = 4A) | VC | | 14 | | V | tp = 0.2/100ns, Pin 1 or Pin 2 to Pin 3, IPP = 4A | 2 |
| ESD Clamping Voltage (IPP = 16A) | VC | | 20 | | V | tp = 0.2/100ns, Pin 1 or Pin 2 to Pin 3, IPP = 16A | 2 |
| Dynamic Resistance | RDYN | | 0.52 | | Ω | tp = 0.2/100ns, Pin 1 or Pin 2 to Pin 3 | 2 |
| Peak Pulse Power | PPK | | | 300 | W | tp = 8/20µs | 2 |
| Peak Pulse Current | IPP | | | 15 | A | tp = 8/20µs | 2 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | | 30 | kV | IEC 61000-4-2 air discharge | 2 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -25 | | 25 | kV | IEC 61000-4-2 contact discharge | 2 |
| Operating Temperature | TJ | -40 | | 105 | °C | | 2 |
| Storage Temperature | TSTG | -55 | | 150 | °C | | 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 Finish: Matte Tin • Pb-Free, Halogen Free, RoHS/WEEE Compliant | 1 |
## CAD (KiCad official)
- Symbol: `RCLAMP0582B.TCT`
- Footprint: `Package_TO_SOT_SMD:SOT-523`
- 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `rclamp0582b-tct-etched.step` / `rclamp0582b-tct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rclamp0582b-tct.step` / `rclamp0582b-tct.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [SEMTECH datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588943444655394817) (8 pp, sha256 `58d80ffc5519d1a6`, retrieved 2026-10-20, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/rclamp0582b-tct-datasheet.pdf)