component
SMBJ300CA
Public Made by Adomby adom
RUILON(Shenzhen Ruilongyuan Elec) TVS, DO-214AA(SMB). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
main
SMBJ300CA
RUILON(Shenzhen Ruilongyuan Elec) · TVS · DO-214AA(SMB)
SMBJ300CA from RUILON(Shenzhen Ruilongyuan Elec), in a DO-214AA(SMB). 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 | RUILON(Shenzhen Ruilongyuan Elec) |
| Package | DO-214AA(SMB) |
| 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 (minimum) | VBR | 335 | V | IT = 1 mA | 4 | ||
| Breakdown Voltage (maximum) | VBR | 371 | V | IT = 1 mA | 4 | ||
| Maximum Clamping Voltage | VC | 486 | V | IPP = 1.3 A | 4 | ||
| Reverse Leakage Current | IR | 1 | µA | @VRWM = 300 V | 4 | ||
| Peak Pulse Power Dissipation | PPPM | 600 | W | TA = 25°C, 10/1000µs waveform (Fig.2)(Note 1),(Note 2) | 2 | ||
| Power Dissipation on Infinite Heat Sink | PD | 5 | W | TA = 50°C, infinite heat sink | 2 | ||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | °C | 2 | ||
| Reverse Stand-Off Voltage | VRWM | 300 | V | 4 | |||
| Typical Thermal Resistance Junction to Lead | RθJL | 20 | °C/W | 2 | |||
| Typical Thermal Resistance Junction to Ambient | RθJL | 100 | °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 | • Matte tin lead-free Plated • Halogen ree and RoHS compliant | 2 |
CAD (KiCad official)
- Symbol:
SMBJ300CA - Footprint:
Diode_SMD:D_SMB - 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
- 3D model files:
smbj300ca-etched.step/smbj300ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj300ca.step/smbj300ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RUILON(Shenzhen Ruilongyuan Elec) datasheet (7 pp, sha256
ef490f296b9d486f, 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).
# SMBJ300CA
**RUILON(Shenzhen Ruilongyuan Elec)** · TVS · DO-214AA(SMB)
SMBJ300CA from RUILON(Shenzhen Ruilongyuan Elec), in a DO-214AA(SMB). 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 | RUILON(Shenzhen Ruilongyuan Elec) |
| Package | DO-214AA(SMB) |
| 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 (minimum) | VBR | 335 | | | V | IT = 1 mA | 4 |
| Breakdown Voltage (maximum) | VBR | | | 371 | V | IT = 1 mA | 4 |
| Maximum Clamping Voltage | VC | | | 486 | V | IPP = 1.3 A | 4 |
| Reverse Leakage Current | IR | | | 1 | µA | @VRWM = 300 V | 4 |
| Peak Pulse Power Dissipation | PPPM | | | 600 | W | TA = 25°C, 10/1000µs waveform (Fig.2)(Note 1),(Note 2) | 2 |
| Power Dissipation on Infinite Heat Sink | PD | | | 5 | W | TA = 50°C, infinite heat sink | 2 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | | 150 | °C | | 2 |
| Reverse Stand-Off Voltage | VRWM | | 300 | | V | | 4 |
| Typical Thermal Resistance Junction to Lead | RθJL | | 20 | | °C/W | | 2 |
| Typical Thermal Resistance Junction to Ambient | RθJL | | 100 | | °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 | • Matte tin lead-free Plated • Halogen ree and RoHS compliant | 2 |
## CAD (KiCad official)
- Symbol: `SMBJ300CA`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
- 3D model files: `smbj300ca-etched.step` / `smbj300ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smbj300ca.step` / `smbj300ca.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [RUILON(Shenzhen Ruilongyuan Elec) datasheet](docs/smbj300ca-datasheet.pdf) (7 pp, sha256 `ef490f296b9d486f`, 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/smbj300ca-datasheet.pdf)