component
KSMAJ45CA-E3
Public Made by Adomby adom
KUU ESD And Surge Protection (TVS/ESD), SMA. 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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KSMAJ45CA-E3
KUU · ESD And Surge Protection (TVS/ESD) · SMA
KSMAJ45CA-E3 from KUU, in a 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 | 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 | KUU |
| Package | SMA |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power Dissipation (10/1000 us waveform) | PPPM | 400 | W | 10/1000us waveform (Note1, Fig.1); printed as Minimum 400 | 1 | ||
| Breakdown Voltage (minimum) | VBL | 50 | V | @IT = 1 mA | 3 | ||
| Breakdown Voltage (maximum) | VBH | 55.3 | V | @IT = 1 mA | 3 | ||
| Reverse Leakage Current | IR | 1 | uA | @VRWM = 45 V | 3 | ||
| Maximum Peak Pulse Current | IPP | 5.5 | A | 3 | |||
| Maximum Clamping Voltage | VCH | 72.7 | V | @IPP | 3 | ||
| Steady State Power Dissipation | PM(AV) | 3.3 | W | TL = 75 C, lead lengths 0.375 in (9.5 mm) (Fig.5) | 1 | ||
| Peak Forward Surge Current | IFSM | 40 | A | 8.3 ms single half sine-wave, superimposed on rated load (JEDEC Method) (Note 2, Fig.6) | 1 | ||
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 | 150 | C | 1 |
CAD (KiCad official)
- Symbol:
KSMAJ45CA-E3 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
ksmaj45ca-e3-etched.step/ksmaj45ca-e3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ksmaj45ca-e3.step/ksmaj45ca-e3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KUU datasheet (4 pp, sha256
f58346f6bb58acda, retrieved 2026-10-14, 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).
# KSMAJ45CA-E3
**KUU** · ESD And Surge Protection (TVS/ESD) · SMA
KSMAJ45CA-E3 from KUU, in a 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 | 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 | KUU |
| Package | SMA |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power Dissipation (10/1000 us waveform) | PPPM | 400 | | | W | 10/1000us waveform (Note1, Fig.1); printed as Minimum 400 | 1 |
| Breakdown Voltage (minimum) | VBL | 50 | | | V | @IT = 1 mA | 3 |
| Breakdown Voltage (maximum) | VBH | | | 55.3 | V | @IT = 1 mA | 3 |
| Reverse Leakage Current | IR | | | 1 | uA | @VRWM = 45 V | 3 |
| Maximum Peak Pulse Current | IPP | | | 5.5 | A | | 3 |
| Maximum Clamping Voltage | VCH | | | 72.7 | V | @IPP | 3 |
| Steady State Power Dissipation | PM(AV) | | | 3.3 | W | TL = 75 C, lead lengths 0.375 in (9.5 mm) (Fig.5) | 1 |
| Peak Forward Surge Current | IFSM | | | 40 | A | 8.3 ms single half sine-wave, superimposed on rated load (JEDEC Method) (Note 2, Fig.6) | 1 |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 | | 150 | C | | 1 |
## CAD (KiCad official)
- Symbol: `KSMAJ45CA-E3`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `ksmaj45ca-e3-etched.step` / `ksmaj45ca-e3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ksmaj45ca-e3.step` / `ksmaj45ca-e3.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [KUU datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588944637696888832) (4 pp, sha256 `f58346f6bb58acda`, retrieved 2026-10-14, 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/ksmaj45ca-e3-datasheet.pdf)