# TPD4E001DPKR

**Texas Instruments** · ESD And Surge Protection (TVS/ESD) · DFN-6(1.6x1.6)

TPD4E001DPKR from Texas Instruments, in a DFN-6(1.6x1.6). 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 I/O channel whose voltage must stay between -0.3 V and VCC + 0.3 V, with a peak pulse current rating of 5.5 A (IEC 61000-4-5, 8/20 µs). |
| 2 | IO2 | bidirectional | ESD-protected I/O channel whose voltage must stay between -0.3 V and VCC + 0.3 V, with a peak pulse current rating of 5.5 A (IEC 61000-4-5, 8/20 µs). |
| 3 | GND | power_in | Ground reference for the device. |
| 4 | IO3 | bidirectional | ESD-protected I/O channel whose voltage must stay between -0.3 V and VCC + 0.3 V, with a peak pulse current rating of 5.5 A (IEC 61000-4-5, 8/20 µs). |
| 5 | IO4 | bidirectional | ESD-protected I/O channel whose voltage must stay between -0.3 V and VCC + 0.3 V, with a peak pulse current rating of 5.5 A (IEC 61000-4-5, 8/20 µs). |
| 6 | VCC | power_in | Power-supply input with an operating range of 0.9 V to 5.5 V; bypass VCC to GND with a 0.1-µF ceramic capacitor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | DFN-6(1.6x1.6) |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage (absolute maximum) | VCC | -0.3 |  | 7 | V |  | 4 |
| Operating voltage, VCC pin | VCC | 0.9 |  | 5.5 | V |  | 4 |
| Operating free-air temperature | TA | -40 |  | 85 | °C |  | 4 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 4 |
| IO voltage tolerance | VI/O | -0.3 |  |  | V | Maximum printed as VCC + 0.3 V | 4 |
| Operating voltage, IO1 and IO2 pins |  | 0 |  |  | V | Maximum printed as VCC | 4 |
| IEC 61000-4-5 peak pulse current | I(Surge) |  |  | 5.5 | A | TP = 8/20µs, IOx pins | 4 |
| IEC 61000-4-5 peak pulse power | P(Surge) |  |  | 100 | W | TP = 8/20µs, IOx pins | 4 |
| Junction temperature | TJ |  |  | 150 | °C |  | 4 |
| Bump temperature (soldering) |  |  |  | 220 | °C | Infrared (15s) | 4 |
| Bump temperature (soldering) |  |  |  | 215 | °C | Vapor phase (60s) | 4 |
| Lead temperature (soldering) |  |  |  | 300 | °C | 10s | 4 |
| Supply current | ICC |  | 1 | 100 | nA |  | 5 |
| Supply voltage | VCC | 0.9 |  | 5.5 | V |  | 5 |
| Diode forward voltage | VF |  | 0.65 | 0.95 | V | IF = 10mA | 5 |
| Breakdown voltage | VBR | 11 |  |  | V | IBR = 10mA | 5 |
| Surge strike clamp voltage, positive transients | VC |  |  | 17 | V | Surge strike on IO pin, GND pin grounded, IPP = 5A, 8/20µs | 5 |
| Reverse stand-off voltage | VRWM |  |  | 5.5 | V | IO pin to GND pin | 5 |
| Channel leakage current | II/O | -1 |  | 1 | nA | Vi/o = GND to VCC | 5 |
| Channel input capacitance | CI/O |  | 1.5 |  | pF | VCC = 5V, bias of VCC/2; ƒ = 10MHz | 5 |
| Junction-to-ambient thermal resistance (DPK) | RθJA |  | 247.6 |  | °C/W |  | 5 |
| Junction-to-case (top) thermal resistance (DPK) | RθJC(top) |  | 124.8 |  | °C/W |  | 5 |
| Junction-to-board thermal resistance (DPK) | RθJB |  | 204.2 |  | °C/W |  | 5 |
| Junction-to-top characterization parameter (DPK) | ψJT |  | 19.2 |  | °C/W |  | 5 |
| Junction-to-board characterization parameter (DPK) | ψJB |  | 209.3 |  | °C/W |  | 5 |

## CAD (KiCad official)

- Symbol: `TPD4E001DPKR`
- Footprint: `OptoDevice:Renesas_DFN-6_1.5x1.6mm_P0.5mm`
- 3D model: DFN-6(1.6x1.6) (KiCad packages3D, STEP)
- 3D model files: `tpd4e001dpkr-etched.step` / `tpd4e001dpkr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpd4e001dpkr.step` / `tpd4e001dpkr.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/lit/ds/symlink/tpd4e001.pdf) (32 pp, sha256 `e10f97586a1aa314`, retrieved 2026-11-05, tier: manufacturer)
- **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/tpd4e001dpkr-datasheet.pdf)