component
SMAJ70CA
Public Made by Adomby adom
FTR TVS, DO-214AC(SMA). 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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PCB Footprint
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Datasheet
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README
markdownSMAJ70CA
FTR · TVS · DO-214AC(SMA)
SMAJ70CA from FTR, in a DO-214AC(SMA). 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 | FTR |
| Package | DO-214AC(SMA) |
| 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 (bidirectional SMAJ70CA) | VBR | 77.8 | 86 | V | @IT 1 mA | 3 | |
| Maximum clamping voltage (bidirectional SMAJ70CA) | VC | 113 | V | @IPP 3.5 A | 3 | ||
| Reverse leakage (bidirectional SMAJ70CA) | IR | 1 | µA | @VRWM 70 V | 3 | ||
| Reverse stand-off voltage (bidirectional SMAJ70CA) | VRWM | 70 | V | 3 | |||
| Peak pulse current (bidirectional SMAJ70CA, table value) | IPP | 3.5 | A | Table value paired with VC; see Note 1 for pulse conditions | 3 | ||
| Peak pulse power dissipation | PPPM | 400 | Watts | 10/1000µs waveform (Note1, Fig.1) | 1 | ||
| Steady state power dissipation | PM(AV) | 3.3 | Watts | TL=75℃ (Fig.4) | 1 | ||
| Peak forward surge current | IFSM | 40 | Amps | 8.3ms single half sine-wave superimposed on rated load, (JEDEC Method) (Note2) | 1 | ||
| Operating junction and storage temperature range | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to lead (typical) | RθJL | 30 | ℃/W | Typical | 1 | ||
| Thermal resistance junction to ambient (typical) | RθJA | 120 | ℃/W | Typical | 1 |
CAD (KiCad official)
- Symbol:
SMAJ70CA - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
smaj70ca-etched.step/smaj70ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj70ca.step/smaj70ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: FTR datasheet (6 pp, sha256
87b34711383dadd3, 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).