# ESD2CAN24DCKRQ1

**TEXAS INSTRUMENTS** · Global Sourcing Parts · SC-70-3

ESD2CAN24DCKRQ1 from TEXAS INSTRUMENTS, in a SC-70-3. 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 | IO1 | bidirectional | ESD-protected bidirectional I/O that clamps to GND, rated for ISO 10605 ±27kV contact and air-gap discharge (330pF/330Ω), 5.7A IEC 61000-4-5 8/20µs surge, and ±24V reverse standoff voltage. |
| 2 | IO2 | bidirectional | ESD-protected bidirectional I/O that clamps to GND, rated for ISO 10605 ±27kV contact and air-gap discharge (330pF/330Ω), 5.7A IEC 61000-4-5 8/20µs surge, and ±24V reverse standoff voltage. |
| 3 | GND | power_in | Ground reference for the ESD clamp; the layout guidance calls for a thick, short return trace when pin 3 is grounded. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TEXAS INSTRUMENTS |
| Package | SC-70-3 |
| Category | Global Sourcing Parts |
| 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 |
|---|---|---|---|---|---|---|---|
| 反向关断电压 (Reverse standoff voltage) | VRWM | -24 |  | 24 | V |  | 6 |
| 击穿电压 (Breakdown voltage, positive) | VBRF | 25.5 |  | 35.5 | V | IIO = 10mA、IO 至 GND | 6 |
| 击穿电压 (Breakdown voltage, negative) | VBRR | -35.5 |  | -25.5 | V | IIO = -10mA、IO 至 GND | 6 |
| 漏电流 (Leakage current) | ILEAK | -50 | 5 | 50 | nA | VIO = ±24V、IO 至 GND | 6 |
| 线路电容 (Line capacitance) | CL |  | 3 | 5 | pF | VIO = 0V，f = 1MHz，Vpp = 30mV | 6 |
| IEC 61000-4-5 功率 (tp, 8/20µs) at 25°C | PPP |  |  | 210 | W | 25°C，IEC 61000-4-5 (tp, 8/20µs) | 4 |
| IEC 61000-4-5 电流 (tp, 8/20µs) at 25°C | IPP |  |  | 5.7 | A | 25°C，IEC 61000-4-5 (tp, 8/20µs) | 4 |
| 自然通风条件下的工作温度 (Operating ambient temperature) | TA | -55 |  | 150 | °C | 自然通风条件下 | 4 |
| 结温 (Junction temperature) | TJ | -55 |  | 150 | °C |  | 4 |
| 贮存温度 (Storage temperature) | Tstg | -65 |  | 155 | °C |  | 4 |
| IEC 61000-4-2 接触放电 ESD (all pins) | V(ESD) | -30000 |  | 30000 | V | IEC 61000-4-2 接触放电，所有引脚 | 4 |
| IEC 61000-4-2 空气间隙放电 ESD (all pins) | V(ESD) | -30000 |  | 30000 | V | IEC 61000-4-2 空气间隙放电，所有引脚 | 4 |
| 人体放电模型 HBM ESD | V(ESD) | -2500 |  | 2500 | V | HBM，符合 AEC Q101-001 标准 | 4 |
| 充电器件模型 CDM ESD | V(ESD) | -1000 |  | 1000 | V | CDM，符合 AEC Q101-005 标准 | 4 |
| ISO 10605 接触放电 ESD (150pF) | V(ESD) | -30000 |  | 30000 | V | ISO 10605，150pF、330Ω，IO，接触放电 | 5 |
| ISO 10605 接触放电 ESD (330pF) | V(ESD) | -27000 |  | 27000 | V | ISO 10605，330pF、330Ω，IO，接触放电 | 5 |
| ISO 10605 气隙放电 ESD (150pF) | V(ESD) | -30000 |  | 30000 | V | ISO 10605，150pF、330Ω，IO，气隙放电 | 5 |
| ISO 10605 气隙放电 ESD (330pF) | V(ESD) | -27000 |  | 27000 | V | ISO 10605，330pF、330Ω，IO，气隙放电 | 5 |
| 输入电压 (Input voltage) | VIN | -24 |  | 24 | V |  | 5 |
| 自然通风条件下的工作温度 (Operating ambient temperature) | TA | -55 |  | 150 | °C | 自然通风条件下 | 5 |
| 钳位电压 (Clamp voltage, 8/20µs) | VCLAMP |  | 37 |  | V | IPP = 5.7A，tp = 8/20µs，IO 至 GND | 6 |
| 钳位电压 (Clamp voltage, TLP) | VCLAMP |  | 35 |  | V | IPP = 16A、TLP、IO 至 GND 或 GND 至 IO | 6 |
| 快速复位后的保持电压 (Holding voltage after snapback) | VHold |  | 30 |  | V | TLP | 6 |
| 动态电阻 (Dynamic resistance) | RDYN |  | 0.35 |  | Ω | IO 至 GND 和 GND 至 IO | 6 |
| 结至环境热阻 RθJA | RθJA |  | 283 |  | °C/W | DCK (SC-70) 3 引脚 | 5 |
| 结至外壳（顶部）热阻 RθJC(top) | RθJC(top) |  | 164.1 |  | °C/W | DCK (SC-70) 3 引脚 | 5 |
| 结至电路板热阻 RθJB | RθJB |  | 105.1 |  | °C/W | DCK (SC-70) 3 引脚 | 5 |
| 结至顶部特征参数 ΨJT | ΨJT |  | 67.1 |  | °C/W | DCK (SC-70) 3 引脚 | 5 |
| 结至电路板特征参数 ΨJB | ΨJB |  | 104.4 |  | °C/W | DCK (SC-70) 3 引脚 | 5 |

## CAD (KiCad official)

- Symbol: `ESD2CAN24DCKRQ1`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SC-70-3 (KiCad packages3D, STEP)
- 3D model files: `esd2can24dckrq1-etched.step` / `esd2can24dckrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd2can24dckrq1.step` / `esd2can24dckrq1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TEXAS INSTRUMENTS datasheet](https://www.ti.com.cn/cn/lit/ds/symlink/esd2can24-q1.pdf?ts=1731307541454&ref_url=https%253A%252F%252Fwww.ti.com.cn%252Fsitesearch%252Fzh-cn%252Fdocs%252Funiversalsearch.tsp%253FlangPref%253Dzh-CN%2526nr%253D13%2526searchTerm%253DESD2CAN24DCKRQ1) (26 pp, sha256 `ff2e25a48fccc944`, retrieved 2026-10-17, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/esd2can24dckrq1-datasheet.pdf)