component
DT1446-04V-7
Public Made by Adomby adom
Diodes Incorporated ESD And Surge Protection (TVS/ESD), SOT-563. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownDT1446-04V-7
Diodes Incorporated · ESD And Surge Protection (TVS/ESD) · SOT-563
DT1446-04V-7 from Diodes Incorporated, in a SOT-563. 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 | ESD-protected high-speed I/O channel 1 (steered to VCC/VSS), rated for 4.7A IPP (8/20µs) and ±16kV contact ESD to VSS, with 0.55pF typical capacitance. |
| 2 | VSS | power_in | Ground reference (VSS) for the array; I/O clamping and ESD ratings are specified relative to this pin. |
| 3 | I/O 2 | passive | ESD-protected high-speed I/O channel 2 (steered to VCC/VSS), rated for 4.7A IPP (8/20µs) and ±16kV contact ESD to VSS, with 0.55pF typical capacitance. |
| 4 | I/O 3 | passive | ESD-protected high-speed I/O channel 3 (steered to VCC/VSS), rated for 4.7A IPP (8/20µs) and ±16kV contact ESD to VSS, with 0.55pF typical capacitance. |
| 5 | VCC | power_in | Supply rail protected by the internal TVS diode, with 6V DC operating voltage, 5.5V max reverse working voltage, 6.0V min breakdown (VCC to VSS), and ±30kV ESD rating. |
| 6 | I/O 4 | passive | ESD-protected high-speed I/O channel 4 (steered to VCC/VSS), rated for 4.7A IPP (8/20µs) and ±16kV contact ESD to VSS, with 0.55pF typical capacitance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-563 |
| 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 Current, per IEC 61000-4-5 | IPP_I/O | 4.7 | A | I/O to VSS, 8/20µs | 2 | ||
| Operating Voltage (DC) | VDC | 6 | V | VCC to VSS | 2 | ||
| ESD Protection, Contact Discharge, I/O | VESD_I/O | -16 | 16 | kV | I/O to VSS, per IEC 61000-4-2 | 2 | |
| ESD Protection, Contact Discharge, VCC | VESD_VCC | -30 | 30 | kV | VCC to VSS, per IEC 61000-4-2 | 2 | |
| ESD Protection, Air Discharge, I/O | VESD_I/O | -19 | 19 | kV | I/O to VSS, per IEC 61000-4-2 | 2 | |
| ESD Protection, Air Discharge, VCC | VESD_VCC | -30 | 30 | kV | VCC to VSS, per IEC 61000-4-2 | 2 | |
| Reverse Working Voltage | VRWM | 5.5 | V | VCC to VSS | 2 | ||
| Reverse Current (VCC to VSS) | IR(VCC to VSS) | 5 | μA | VR = 5V, VCC to VSS | 2 | ||
| Reverse Current (IO to VSS) | IR(IO to VSS) | 1 | μA | VR = 5V, any I/O to VSS | 2 | ||
| Reverse Breakdown Voltage | VBR | 6 | 9 | V | IR = 1mA, VCC to VSS | 2 | |
| Forward Clamping Voltage | VF | 0.8 | 1 | V | IF = 15mA, VSS to VCC | 2 | |
| Channel Input Capacitance (VCC = 5V) | CI/O to VSS | 0.55 | 0.65 | pF | VR = 2.5V, VCC = 5V, f = 1MHz | 2 | |
| Power Dissipation Typical | PD | 380 | mW | Typical, device mounted on FR-4 PCB suggested pad layout AP02001 (Note 5) | 2 | ||
| Thermal Resistance, Junction to Ambient Typical | RθJA | 327 | °C/W | Typical, device mounted on FR-4 PCB suggested pad layout AP02001 (Note 5) | 2 | ||
| Operating and Storage Temperature Range | TJ, 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 | Copper | tin | • Terminals: Matte Tin Finish annealed over Copper leadframe | 1 |
CAD (KiCad official)
- Symbol:
DT1446-04V-7 - Footprint:
Package_TO_SOT_SMD:SOT-563 - 3D model: SOT-563 (KiCad packages3D, STEP)
- 3D model files:
dt1446-04v-7-etched.step/dt1446-04v-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dt1446-04v-7.step/dt1446-04v-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (5 pp, sha256
a3738c9fc7b9ca83, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).