component
SMAJ440CA
Public Made by Adomby adom
BORN TVS, 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.
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SMAJ440CA
BORN · TVS · SMA(DO-214AC)
SMAJ440CA from BORN, 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 | 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 | BORN |
| Package | SMA(DO-214AC) |
| 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 | VR | 440 | V | 4 | |||
| Breakdown voltage | VBR | 492 | 543 | V | IT = 1 mA | 4 | |
| Maximum clamping voltage | VC | 713 | V | @ Ipp = 0.6 A | 4 | ||
| Maximum peak pulse current | Ipp | 0.6 | A | 4 | |||
| Maximum reverse leakage current | IR | 1 | uA | @ VR = 440 V | 4 | ||
| Peak Pulse Power Dissipation | PPPM | 400 | W | Note1,2: non-repetitive 10/1000us pulse; mounted on 5x5mm copper pad to each terminal | 2 | ||
| Steady State Power Dissipation | PD | 3.3 | W | Note3: infinite heatsink at TA = 50◦C | 2 | ||
| Peak Forward Surge Current | IFSM | 40 | A | Note4: 8.3ms single half sine wave or equivalent square wave | 2 | ||
| Operating Temperature Range | TJ | -55 | 150 | ◦C | 2 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ◦C | 2 | ||
| Typical Thermal Resistance Junction to Lead | RθJL | 30 | ◦C/W | 2 | |||
| Typical Thermal Resistance Junction to Ambient | RθJA | 120 | ◦C/W | 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 | • Lead Finish: Matte Tin • Case Material: Epoxy Molding Compound | 1 |
CAD (KiCad official)
- Symbol:
SMAJ440CA - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
smaj440ca-etched.step/smaj440ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj440ca.step/smaj440ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BORN datasheet (7 pp, sha256
12b8d8927b041fa8, retrieved 2026-10-21, 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).
# SMAJ440CA
**BORN** · TVS · SMA(DO-214AC)
SMAJ440CA from BORN, 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 | 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 | BORN |
| Package | SMA(DO-214AC) |
| 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 | VR | | | 440 | V | | 4 |
| Breakdown voltage | VBR | 492 | | 543 | V | IT = 1 mA | 4 |
| Maximum clamping voltage | VC | | | 713 | V | @ Ipp = 0.6 A | 4 |
| Maximum peak pulse current | Ipp | | | 0.6 | A | | 4 |
| Maximum reverse leakage current | IR | | | 1 | uA | @ VR = 440 V | 4 |
| Peak Pulse Power Dissipation | PPPM | | | 400 | W | Note1,2: non-repetitive 10/1000us pulse; mounted on 5x5mm copper pad to each terminal | 2 |
| Steady State Power Dissipation | PD | | | 3.3 | W | Note3: infinite heatsink at TA = 50◦C | 2 |
| Peak Forward Surge Current | IFSM | | | 40 | A | Note4: 8.3ms single half sine wave or equivalent square wave | 2 |
| Operating Temperature Range | TJ | -55 | | 150 | ◦C | | 2 |
| Storage Temperature Range | TSTG | -55 | | 150 | ◦C | | 2 |
| Typical Thermal Resistance Junction to Lead | RθJL | | 30 | | ◦C/W | | 2 |
| Typical Thermal Resistance Junction to Ambient | RθJA | | 120 | | ◦C/W | | 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 | • Lead Finish: Matte Tin • Case Material: Epoxy Molding Compound | 1 |
## CAD (KiCad official)
- Symbol: `SMAJ440CA`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files: `smaj440ca-etched.step` / `smaj440ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaj440ca.step` / `smaj440ca.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [BORN datasheet](docs/smaj440ca-datasheet.pdf) (7 pp, sha256 `12b8d8927b041fa8`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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).
[Datasheet PDF](docs/smaj440ca-datasheet.pdf)