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SDC36C.TCT
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SEMTECH ESD And Surge Protection (TVS/ESD), SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SDC36C.TCT
SEMTECH · ESD And Surge Protection (TVS/ESD) · SOT-23-3
SDC36C.TCT from SEMTECH, in a SOT-23-3. 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 | passive | Terminal of the internal TVS diode pair that connects to the I/O line in two- and three-wire proximity switch use, and is bidirectionally protected against pin 2 with a clamping voltage of <45V at 2A (1.2/50µs). |
| 2 | Pin 2 | passive | Terminal of the internal TVS diode pair that connects to the DC supply in two-wire use or to the I/O line or ground in three-wire use, and is bidirectionally protected against pin 1 with a clamping voltage of <45V at 2A (1.2/50µs). |
| 3 | Pin 3 | passive | Common terminal of the unidirectional TVS diodes to pins 1 and 2 that must be connected to the DC supply line in three-wire use (24V-33V DC supply protection) and is left unconnected in two-wire use. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SEMTECH |
| Package | SOT-23-3 |
| 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 | 3 | V | Pin 3 to 1 or Pin 2 to 1 | 2 | ||
| Reverse Breakdown Voltage | VBR | 6 | V | IT = 1mA | 2 | ||
| Reverse Leakage Current | IR | 5 | µA | VRWM = 33V, T=25°C | 2 | ||
| Reverse Leakage Current (hot) | IR(HOT) | 2 | µA | VRWM = 33V, T=85°C | 2 | ||
| Forward Voltage | VF | 1 | V | IF = 100mA | 2 | ||
| Clamping Voltage | VC | 45 | V | IPP = 2A, tp = 1.2/50µs | 2 | ||
| Junction Capacitance | Cj | 4 | pF | VR = 0V, f = 1MHz | 2 | ||
| Peak Pulse Current (tp = 1.2/50µs) | IPP | 4 | A | tp = 1.2/50µs | 2 | ||
| Non-Repetitive Peak Forward Current (tp = 100µs) | IFSMAX | 4 | A | tp = 100µs | 2 | ||
| Operating Temperature | TJ | -55 | 125 | °C | 2 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
SDC36C.TCT - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
sdc36c-tct-etched.step/sdc36c-tct-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sdc36c-tct.step/sdc36c-tct.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SEMTECH datasheet (6 pp, sha256
b60a2b293563e9e4, retrieved 2026-10-20, 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).
# SDC36C.TCT
**SEMTECH** · ESD And Surge Protection (TVS/ESD) · SOT-23-3
SDC36C.TCT from SEMTECH, in a SOT-23-3. 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 | passive | Terminal of the internal TVS diode pair that connects to the I/O line in two- and three-wire proximity switch use, and is bidirectionally protected against pin 2 with a clamping voltage of <45V at 2A (1.2/50µs). |
| 2 | Pin 2 | passive | Terminal of the internal TVS diode pair that connects to the DC supply in two-wire use or to the I/O line or ground in three-wire use, and is bidirectionally protected against pin 1 with a clamping voltage of <45V at 2A (1.2/50µs). |
| 3 | Pin 3 | passive | Common terminal of the unidirectional TVS diodes to pins 1 and 2 that must be connected to the DC supply line in three-wire use (24V-33V DC supply protection) and is left unconnected in two-wire use. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SEMTECH |
| Package | SOT-23-3 |
| 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 | | | 3 | V | Pin 3 to 1 or Pin 2 to 1 | 2 |
| Reverse Breakdown Voltage | VBR | 6 | | | V | IT = 1mA | 2 |
| Reverse Leakage Current | IR | | | 5 | µA | VRWM = 33V, T=25°C | 2 |
| Reverse Leakage Current (hot) | IR(HOT) | | | 2 | µA | VRWM = 33V, T=85°C | 2 |
| Forward Voltage | VF | | | 1 | V | IF = 100mA | 2 |
| Clamping Voltage | VC | | | 45 | V | IPP = 2A, tp = 1.2/50µs | 2 |
| Junction Capacitance | Cj | | | 4 | pF | VR = 0V, f = 1MHz | 2 |
| Peak Pulse Current (tp = 1.2/50µs) | IPP | | | 4 | A | tp = 1.2/50µs | 2 |
| Non-Repetitive Peak Forward Current (tp = 100µs) | IFSMAX | | | 4 | A | tp = 100µs | 2 |
| Operating Temperature | TJ | -55 | | 125 | °C | | 2 |
| Storage Temperature | TSTG | -55 | | 150 | °C | | 2 |
## CAD (KiCad official)
- Symbol: `SDC36C.TCT`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `sdc36c-tct-etched.step` / `sdc36c-tct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sdc36c-tct.step` / `sdc36c-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/8590470615879610368) (6 pp, sha256 `b60a2b293563e9e4`, retrieved 2026-10-20, 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](docs/sdc36c-tct-datasheet.pdf)