component
P6SMB400A
Public Made by Adomby adom
Littelfuse TVS, DO-214AA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownP6SMB400A
Littelfuse · TVS · DO-214AA
P6SMB400A from Littelfuse, in a DO-214AA. 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 | K | passive | Cathode (marked by color band on the uni-directional P6SMB400A); connects to the positive side of the protected line, with VR 342 V, VBR 380-420 V at 1 mA and VC 548 V at 1.5 A Ipp. |
| 2 | A | passive | Anode of the uni-directional P6SMB400A, connected to the return/ground side of the protected line; forward voltage VF is 5.0 V max at 50 A for stacked-die parts. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DO-214AA |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 380 | 420 | V | @ IT = 1 mA | 2 | |
| Reverse Stand-off Voltage | VR | 342 | V | 2 | |||
| Maximum Clamping Voltage | VC | 548 | V | @ Ipp = 1.5 A | 2 | ||
| Maximum Peak Pulse Current | Ipp | 1.5 | A | 2 | |||
| Maximum Reverse Leakage | IR | 1 | µA | @ VR | 2 | ||
| Maximum Temperature Coefficient of VBR | αT | 0.112 | %/C | 2 | |||
| Peak Pulse Power Dissipation (stacked die) | PPPM | 800 | W | 10/1000us waveform, TA=25°C | 1 | ||
| Power Dissipation on Infinite Heat Sink | PD | 5 | W | TL=50°C | 1 | ||
| Peak Forward Surge Current | IFSM | 100 | A | 8.3ms single half sine wave, unidirectional only | 1 | ||
| Maximum Instantaneous Forward Voltage | VF | 5 | V | at 50A, unidirectional only, stacked-die | 1 | ||
| Operating Temperature Range | TJ | -65 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -65 | 175 | °C | 1 | ||
| Typical Thermal Resistance Junction to Lead | RƟJL | 20 | °C/W | 1 | |||
| Typical Thermal Resistance Junction to Ambient | RƟJA | 100 | °C/W | 1 |
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 | • Matte tin lead-free plated • Halogen free and RoHS | 1 |
CAD (KiCad official)
- Symbol:
P6SMB400A - Footprint:
Diode_SMD:D_SMB - 3D model: DO-214AA (KiCad packages3D, STEP)
- 3D model files:
p6smb400a-etched.step/p6smb400a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);p6smb400a.step/p6smb400a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (6 pp, sha256
7b5336e648aa59e7, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).