component
SMBJ68A
Public Made by Adomby adom
YFW TVS, DO-214AA(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 | 5h ago |
| viewers | 5h ago |
| package.json | 5h ago |
| page.json | 5h ago |
| README.md | 5h ago |
| smbj68a-etched.glb | 5h ago |
| smbj68a-etched.step | 5h ago |
| smbj68a-hero.glb | 5h ago |
| smbj68a-hero.overlay.json | 5h ago |
| smbj68a.glb | 5h ago |
| smbj68a.kicad_mod | 5h ago |
| smbj68a.kicad_sym | 5h ago |
| smbj68a.lbr | 5h ago |
| smbj68a.step | 5h ago |
SMBJ68A
YFW · TVS · DO-214AA(SMB)
SMBJ68A from YFW, in a DO-214AA(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 unipolar SMBJ68A TVS diode (stand-off voltage VRWM 58.1V, breakdown 64.6V to 71.4V, max clamp 92V at 6.6A). |
| 2 | Anode | passive | Anode terminal of the unipolar SMBJ68A TVS diode, the polarity-reference side relative to the cathode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | DO-214AA(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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage | VRWM | 58.1 | V | 2 | |||
| Breakdown Voltage | VBR | 64.6 | 71.4 | V | @ IT = 1 mA | 2 | |
| Test Current | IT | 1 | mA | 2 | |||
| Reverse Leakage Current | IR | 1 | μA | @ VRWM | 2 | ||
| Maximum Clamp Voltage | VC | 92 | V | @ IPP | 2 | ||
| Peak Pulse Current | IPP | 6.6 | A | 10/1000 us waveform | 2 | ||
| Peak Pulse Power Dissipation | PPPM | 600 | W | TA=25°C (Note 1,2,5, Fig1) | 1 | ||
| Peak Forward Surge Current (UNI) | IFSM | 100 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC method) | 1 | ||
| ESD Voltage per IEC6100-4-2, Contact | VESD1 | -30 | 30 | kV | Contact | 1 | |
| ESD Voltage per IEC6100-4-2, Air | VESD2 | -30 | 30 | kV | Air | 1 | |
| Junction Capacitance | Cj | 390 | pF | VR=4V, f=1MHz | 1 | ||
| Thermal Resistance Junction to Ambient | RθJA | 100 | °C/W | Note 2 | 1 | ||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -65 | 150 | °C | 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 | copper | 2. Mounted on 5mm2 copper pads to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
SMBJ68A - Footprint:
Diode_SMD:D_SMB - 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
- 3D model files:
smbj68a-etched.step/smbj68a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj68a.step/smbj68a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YFW datasheet (4 pp, sha256
9a370f0c147b6c94, 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).