component
KSMCJ48A-E3-57T
Public Made by Adomby adom
KUU ESD And Surge Protection (TVS/ESD), SMC(DO-214AB). 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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KSMCJ48A-E3-57T
KUU · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)
KSMCJ48A-E3-57T from KUU, in a SMC(DO-214AB). 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 | SMC(DO-214AB) |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Peak Reverse Stand-Off Voltage (unidirectional KSMCJ48A) | VRMW | 48 | 48 | V | Unidirectional KSMCJ48A | 3 | |
| Reverse Breakdown Voltage Min | VBR MIN | 53.3 | V | @ IT = 1.0 mA | 3 | ||
| Reverse Breakdown Voltage Max | VBR MAX | 61.3 | V | @ IT = 1.0 mA | 3 | ||
| Maximum Reverse Leakage Current | IR | 5 | uA | @ VRMW | 3 | ||
| Maximum Clamping Voltage | VC | 77.4 | V | @ IPP = 19.4 A | 3 | ||
| Peak Pulse Power Dissipation | PPPM | 1500 | W | 10/1000 us waveform (Note 1, 2, FIG.1) | 1 | ||
| Peak Forward Surge Current | IFSM | 200 | Amps | 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) (Note 2, 3) | 1 | ||
| Operating Junction Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 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 | (0.03mm thick) Copper Pads to each terminal. 3. 8.3 ms single half sine-wave, or equivalent square wave, Duty cycle=4 pluses per minute maximum. | 1 |
CAD (KiCad official)
- Symbol:
KSMCJ48A-E3-57T - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
ksmcj48a-e3-57t-etched.step/ksmcj48a-e3-57t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ksmcj48a-e3-57t.step/ksmcj48a-e3-57t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KUU datasheet (6 pp, sha256
21bcf911832a226d, retrieved 2026-10-16, 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).
# KSMCJ48A-E3-57T
**KUU** · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)
KSMCJ48A-E3-57T from KUU, in a SMC(DO-214AB). 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 | SMC(DO-214AB) |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Peak Reverse Stand-Off Voltage (unidirectional KSMCJ48A) | VRMW | | 48 | 48 | V | Unidirectional KSMCJ48A | 3 |
| Reverse Breakdown Voltage Min | VBR MIN | 53.3 | | | V | @ IT = 1.0 mA | 3 |
| Reverse Breakdown Voltage Max | VBR MAX | | | 61.3 | V | @ IT = 1.0 mA | 3 |
| Maximum Reverse Leakage Current | IR | | | 5 | uA | @ VRMW | 3 |
| Maximum Clamping Voltage | VC | | | 77.4 | V | @ IPP = 19.4 A | 3 |
| Peak Pulse Power Dissipation | PPPM | 1500 | | | W | 10/1000 us waveform (Note 1, 2, FIG.1) | 1 |
| Peak Forward Surge Current | IFSM | | | 200 | Amps | 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) (Note 2, 3) | 1 |
| Operating Junction Temperature Range | TJ | -55 | | 150 | °C | | 1 |
| Storage Temperature Range | TSTG | -55 | | 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 | | (0.03mm thick) Copper Pads to each terminal. 3. 8.3 ms single half sine-wave, or equivalent square wave, Duty cycle=4 pluses per minute maximum. | 1 |
## CAD (KiCad official)
- Symbol: `KSMCJ48A-E3-57T`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files: `ksmcj48a-e3-57t-etched.step` / `ksmcj48a-e3-57t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ksmcj48a-e3-57t.step` / `ksmcj48a-e3-57t.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/8588944409584930816) (6 pp, sha256 `21bcf911832a226d`, retrieved 2026-10-16, 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/ksmcj48a-e3-57t-datasheet.pdf)