SMBJ78A-13-F
Public Made by Adomby adom
Diodes Incorporated ESD And Surge Protection (TVS/ESD), SMB. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownSMBJ78A-13-F
Diodes Incorporated · ESD And Surge Protection (TVS/ESD) · SMB
SMBJ78A-13-F from Diodes Incorporated, 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| 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 (min) | VBR | 86.7 | V | @ IT = 1.0 mA; IT pulse 10 ms to 15 ms (Note 9) | 3 | ||
| Breakdown Voltage (max) | VBR | 99.7 | V | @ IT = 1.0 mA; IT pulse 10 ms to 15 ms (Note 9) | 3 | ||
| Max. Reverse Leakage Current | IR | 5 | A | @ VRWM = 78 V (printed unit is (A); see review_required) | 3 | ||
| Max. Clamping Voltage | VC | 126 | V | @ Ipp | 3 | ||
| Max. Peak Pulse Current | Ipp | 4.7 | A | 3 | |||
| Reverse Standoff Voltage | VRWM | 78 | V | 3 | |||
| Peak Pulse Power Dissipation | PPK | 600 | W | Non Repetitive Current Pulse, derated above TA = +25°C (Note 5); TA = +25°C | 2 | ||
| Peak Power Derating Above +25°C | PDER | 4.8 | W/C | Above TA = +25°C | 2 | ||
| Peak Forward Surge Current | IFSM | 100 | A | 8.3 ms single half sine wave superimposed on rated load (Notes 5, 6 & 7) | 2 | ||
| Steady State Power Dissipation | PM(AV) | 5 | W | @ TL = +75°C | 2 | ||
| Instantaneous Forward Voltage (unidirectional, VBR<100V) | VF | 3.5 | V | @ IPP = 35A; VBR<100V (Notes 5, 6 & 7) | 2 | ||
| Operating Temperature Range | TJ | -55 | 150 | °C | 2 | ||
| Storage Temperature Range | TSTG | -55 | 175 | °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 | tin | Terminals: Lead Free Plating (Matte Tin Finish). Solderable per MIL-STD-202, Method 208 | 1 |
CAD (KiCad official)
- Symbol:
SMBJ78A-13-F - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
smbj78a-13-f-etched.step/smbj78a-13-f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj78a-13-f.step/smbj78a-13-f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (6 pp, sha256
752945fa3acaf469, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).