component
SMF28VTR
Public Made by Adomby adom
ROHM Semicon TVS, SOD-123F. 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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SMF28VTR
ROHM Semicon · TVS · SOD-123F
SMF28VTR from ROHM Semicon, in a SOD-123F. 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOD-123F |
| Category | TVS/Fuse/Board Level 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 | V | IT=10 mA; VBR test time 40ms | 2 | ||
| Reverse current | IR | 0.1 | μA | VR=28 V | 2 | ||
| Clamping voltage | VCL | 45.4 | V | IPP=4.4 A | 2 | ||
| Reverse stand-off voltage | VRWM | 28 | V | 2 | |||
| Peak Pulse Power | Ppp | 200 | W | tp=10/1000us | 1 | ||
| Peak Pulse Current | Ipp | 4.4 | A | tp=10/1000us | 1 | ||
| Power dissipation | PD | 1 | W | on Glass-epoxy substrate | 1 | ||
| Junction temperature | Tj | 150 | ℃ | 1 | |||
| Storage temperature | Tstg | -65 | 150 | ℃ | 1 | ||
| ESD capability (air) | VESD | 30 | kV | IEC61000-4-2 Air | 1 | ||
| ESD capability (contact) | VESD | 30 | kV | IEC61000-4-2 Contact | 1 |
CAD (KiCad official)
- Symbol:
SMF28VTR - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123F (KiCad packages3D, STEP)
- 3D model files:
smf28vtr-etched.step/smf28vtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smf28vtr.step/smf28vtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (9 pp, sha256
d6fc8606ed32edb6, retrieved 2026-10-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).
# SMF28VTR
**ROHM Semicon** · TVS · SOD-123F
SMF28VTR from ROHM Semicon, in a SOD-123F. 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOD-123F |
| Category | TVS/Fuse/Board Level 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 | | | V | IT=10 mA; VBR test time 40ms | 2 |
| Reverse current | IR | | | 0.1 | μA | VR=28 V | 2 |
| Clamping voltage | VCL | | | 45.4 | V | IPP=4.4 A | 2 |
| Reverse stand-off voltage | VRWM | | | 28 | V | | 2 |
| Peak Pulse Power | Ppp | | | 200 | W | tp=10/1000us | 1 |
| Peak Pulse Current | Ipp | | | 4.4 | A | tp=10/1000us | 1 |
| Power dissipation | PD | | | 1 | W | on Glass-epoxy substrate | 1 |
| Junction temperature | Tj | | | 150 | ℃ | | 1 |
| Storage temperature | Tstg | -65 | | 150 | ℃ | | 1 |
| ESD capability (air) | VESD | | | 30 | kV | IEC61000-4-2 Air | 1 |
| ESD capability (contact) | VESD | | | 30 | kV | IEC61000-4-2 Contact | 1 |
## CAD (KiCad official)
- Symbol: `SMF28VTR`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123F (KiCad packages3D, STEP)
- 3D model files: `smf28vtr-etched.step` / `smf28vtr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smf28vtr.step` / `smf28vtr.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [ROHM Semicon datasheet](docs/smf28vtr-datasheet.pdf) (9 pp, sha256 `d6fc8606ed32edb6`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/smf28vtr-datasheet.pdf)