component
SMCJ28A
Public Made by Adomby adom
Taisko 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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SMCJ28A
Taisko · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)
SMCJ28A from Taisko, 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 | Taisko |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 31.1 | 34.4 | V | @ IT, IT = 1 mA | 3 | |
| Maximum Clamping Voltage | VC | 45.4 | V | @ IPP | 3 | ||
| Maximum Peak Pulse Current | IPP | 33.1 | A | 3 | |||
| Maximum Reverse Leakage | IR | 1 | μA | @ VR | 3 | ||
| Peak Pulse Power Dissipation | PPPM | 1500 | W | Notes 1, 2: non-repetitive 10/1000us pulse; copper pad area 8×8mm to each terminal | 3 | ||
| Steady State Power Dissipation | PD | 6.5 | W | Note 3: infinite heat sink at TA=50°C | 3 | ||
| Peak Forward Surge Current | IFSM | 200 | A | Note 4: 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 | @ 100A; unidirectional only; Note 5: VFM<3.5V for VBR≤200V | 3 | ||
| Operating Temperature Range | TJ | -55 | 150 | ℃ | 3 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 3 | ||
| Typical Thermal Resistance Junction to Lead | RθJL | 15 | ℃/W | Typical | 3 | ||
| Typical Thermal Resistance Junction to Ambient | RθJA | 75 | ℃/W | Typical | 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:
SMCJ28A - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
smcj28a-etched.step/smcj28a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smcj28a.step/smcj28a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Taisko datasheet (8 pp, sha256
bb76d9c11f3fc36a, 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).
# SMCJ28A
**Taisko** · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)
SMCJ28A from Taisko, 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 | Taisko |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 31.1 | | 34.4 | V | @ IT, IT = 1 mA | 3 |
| Maximum Clamping Voltage | VC | | | 45.4 | V | @ IPP | 3 |
| Maximum Peak Pulse Current | IPP | | | 33.1 | A | | 3 |
| Maximum Reverse Leakage | IR | | | 1 | μA | @ VR | 3 |
| Peak Pulse Power Dissipation | PPPM | | | 1500 | W | Notes 1, 2: non-repetitive 10/1000us pulse; copper pad area 8×8mm to each terminal | 3 |
| Steady State Power Dissipation | PD | | | 6.5 | W | Note 3: infinite heat sink at TA=50°C | 3 |
| Peak Forward Surge Current | IFSM | | | 200 | A | Note 4: 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 | @ 100A; unidirectional only; Note 5: VFM<3.5V for VBR≤200V | 3 |
| Operating Temperature Range | TJ | -55 | | 150 | ℃ | | 3 |
| Storage Temperature Range | TSTG | -55 | | 150 | ℃ | | 3 |
| Typical Thermal Resistance Junction to Lead | RθJL | | 15 | | ℃/W | Typical | 3 |
| Typical Thermal Resistance Junction to Ambient | RθJA | | 75 | | ℃/W | Typical | 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: `SMCJ28A`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files: `smcj28a-etched.step` / `smcj28a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smcj28a.step` / `smcj28a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Taisko datasheet](docs/smcj28a-datasheet.pdf) (8 pp, sha256 `bb76d9c11f3fc36a`, 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/smcj28a-datasheet.pdf)