component
SZP6SMB27AT3G
Public Made by Adomby adom
Littelfuse ESD And Surge Protection (TVS/ESD), SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 16d ago |
| viewers | 16d ago |
| package.json | 16d ago |
| page.json | 16d ago |
| README.md | 16d ago |
| szp6smb27at3g-etched.glb | 16d ago |
| szp6smb27at3g-etched.step | 16d ago |
| szp6smb27at3g-hero.glb | 16d ago |
| szp6smb27at3g-hero.overlay.json | 16d ago |
| szp6smb27at3g.glb | 16d ago |
| szp6smb27at3g.kicad_mod | 16d ago |
| szp6smb27at3g.kicad_sym | 16d ago |
| szp6smb27at3g.lbr | 16d ago |
| szp6smb27at3g.step | 16d ago |
SZP6SMB27AT3G
Littelfuse · ESD And Surge Protection (TVS/ESD) · SMB
SZP6SMB27AT3G from Littelfuse, in a SMB. 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 | Cathode | passive | Cathode terminal of the uni-directional TVS, identified by the color band on the package and the cathode mark on the tape cover. |
| 2 | Anode | passive | Anode terminal of the uni-directional TVS, the terminal opposite the cathode band, used for the forward (clamping) path. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | SMB |
| 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 (uni-directional, 27 V type) | VBR | 25.7 | 27.05 | 28.4 | Volts | @ IT = 1 mA (Note 7), TA = 25°C | 3 |
| Maximum Reverse Leakage Current | IR | 5 | µA | @ VRWM | 3 | ||
| Forward Voltage (uni-directional) | VF | 3.5 | V | @ IF = 30 A (Note 5) | 2 | ||
| Peak Power Dissipation | PPK | 600 | W | TL = 25°C, Pulse Width = 1 ms (Note 1), 10/1000 µs, non-repetitive | 1 | ||
| DC Power Dissipation (measured zero lead length) | PD | 3 | W | @ TL = 75°C (Note 2) | 1 | ||
| DC Power Dissipation | PD | 0.55 | W | @ TA = 25°C (Note 3) | 1 | ||
| Forward Surge Current | IFSM | 100 | A | @ TA = 25°C, 1/2 sine wave, PW = 8.3 ms (Note 4), uni-directional only | 1 | ||
| Operating and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 1 | ||
| Working Peak Reverse Voltage | VRWM | 23.1 | V | 3 | |||
| Clamping Voltage | VC | 37.5 | Volts | @ IPP = 16 A (Note 8) | 3 | ||
| Breakdown Voltage Temperature Coefficient | αVBR | 0.096 | %/°C | 3 | |||
| Typical Junction Capacitance | C | 700 | pF | Bias Voltage = 0 V, F = 1 MHz, TJ = 25°C (Note 9) | 3 | ||
| Thermal Resistance from Junction-to-Lead | RθJL | 25 | °C/W | Measured zero lead length (Note 2) | 1 | ||
| DC Power Derating Above 75°C | 40 | mW/°C | Derate above TL = 75°C | 1 | |||
| Thermal Resistance from Junction-to-Ambient | RθJA | 226 | °C/W | FR-4 board, Littelfuse minimum recommended footprint (Note 3) | 1 | ||
| DC Power Derating Above 25°C | 4.4 | mW/°C | Derate above TA = 25°C | 1 |
CAD (KiCad official)
- Symbol:
SZP6SMB27AT3G - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
szp6smb27at3g-etched.step/szp6smb27at3g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);szp6smb27at3g.step/szp6smb27at3g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (7 pp, sha256
baf561fbcd6cd66c, retrieved 2026-10-15, 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).