SMAJ7.5A
Public Made by Adomby adom
Taisko Electrostatic And Surge Protection (TVS/ESD), SMA(DO-214AC). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
| Name | Last updated |
|---|---|
| docs | 19d ago |
| viewers | 19d ago |
| package.json | 19d ago |
| page.json | 19d ago |
| README.md | 19d ago |
| smaj7-5a-etched.glb | 19d ago |
| smaj7-5a-etched.step | 19d ago |
| smaj7-5a-hero.glb | 19d ago |
| smaj7-5a-hero.overlay.json | 19d ago |
| smaj7-5a.glb | 19d ago |
| smaj7-5a.kicad_mod | 19d ago |
| smaj7-5a.kicad_sym | 12d ago |
| smaj7-5a.lbr | 12d ago |
| smaj7-5a.step | 19d ago |
SMAJ7.5A
Taisko · Electrostatic And Surge Protection (TVS/ESD) · SMA(DO-214AC)
SMAJ7.5A from Taisko, in a SMA(DO-214AC). 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Taisko |
| Package | SMA(DO-214AC) |
| Category | TVS/Fuse/Board Level 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 | 8.33 | 9.21 | V | @ IT = 1 mA | 3 | |
| Maximum Clamping Voltage | VC | 12.9 | V | @ IPP = 31 A | 3 | ||
| Maximum Peak Pulse Current | IPP | 31 | A | 3 | |||
| Maximum Reverse Leakage Current | IR | 100 | μA | @ VR = 7.5 V | 3 | ||
| Peak Pulse Power Dissipation | PPPM | 400 | W | Note1: non-repetitive 10/1000us waveform; Note2: copper pad 5x5mm each terminal | 3 | ||
| Steady State Power Dissipation | PD | 3.3 | W | Note3: infinite heatsink at TA=50°C | 3 | ||
| Peak Forward Surge Current | IFSM | 40 | A | Note4: 8.3ms single half sine wave or equivalent square wave, duty cycle 4 per minute max | 3 | ||
| Maximum Instantaneous Forward Voltage | VFM | 3.5 | V | at 20A; unidirectional only, VBR ≤200V (Note5) | 3 | ||
| Typical Thermal Resistance Junction to Ambient | RθJA | 120 | ℃/W | 3 | |||
| Operating Temperature Range | TJ | -55 | 150 | ℃ | 3 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 3 | ||
| Maximum Junction Capacitance | C | 1500 | PF | 3 |
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 | Lead Finish: Matte Tin Case Material: Epoxy Molding Compound. | 1 |
CAD (KiCad official)
- Symbol:
SMAJ7.5A - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
smaj7-5a-etched.step/smaj7-5a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj7-5a.step/smaj7-5a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Taisko datasheet (8 pp, sha256
cc5d1b0bcd0dca9a, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).