component
PTZTFTE255.1B
Public Made by Adomby adom
ROHM Semicon Zener Diodes, DO-214AC(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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PTZTFTE255.1B
ROHM Semicon · Zener Diodes · DO-214AC(SMA)
PTZTFTE255.1B from ROHM Semicon, in a DO-214AC(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 | ROHM Semicon |
| Package | DO-214AC(SMA) |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage (MIN) | VZ | 5.1 | V | IZ = 40 mA | 2 | ||
| Zener voltage (MAX) | VZ | 5.7 | V | IZ = 40 mA | 2 | ||
| Dynamic impedance (MAX) | ZZ | 8 | Ω | IZ = 40 mA | 2 | ||
| Reverse current (MAX) | IR | 20 | μA | VR = 1.0 V | 2 | ||
| Power dissipation | PD | 1000 | mW | Ta = 25℃ | 1 | ||
| Junction temperature | Tj | 150 | ℃ | Ta = 25℃ | 1 | ||
| Storage temperature | Tstg | -55 | 150 | ℃ | Ta = 25℃ | 1 |
CAD (KiCad official)
- Symbol:
PTZTFTE255.1B - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
ptztfte255-1b-etched.step/ptztfte255-1b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ptztfte255-1b.step/ptztfte255-1b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (9 pp, sha256
ede7a80337e0186e, retrieved 2026-10-18, 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).
# PTZTFTE255.1B
**ROHM Semicon** · Zener Diodes · DO-214AC(SMA)
PTZTFTE255.1B from ROHM Semicon, in a DO-214AC(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 | ROHM Semicon |
| Package | DO-214AC(SMA) |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage (MIN) | VZ | 5.1 | | | V | IZ = 40 mA | 2 |
| Zener voltage (MAX) | VZ | | | 5.7 | V | IZ = 40 mA | 2 |
| Dynamic impedance (MAX) | ZZ | | | 8 | Ω | IZ = 40 mA | 2 |
| Reverse current (MAX) | IR | | | 20 | μA | VR = 1.0 V | 2 |
| Power dissipation | PD | | | 1000 | mW | Ta = 25℃ | 1 |
| Junction temperature | Tj | | | 150 | ℃ | Ta = 25℃ | 1 |
| Storage temperature | Tstg | -55 | | 150 | ℃ | Ta = 25℃ | 1 |
## CAD (KiCad official)
- Symbol: `PTZTFTE255.1B`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `ptztfte255-1b-etched.step` / `ptztfte255-1b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ptztfte255-1b.step` / `ptztfte255-1b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [ROHM Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8601051714908794880) (9 pp, sha256 `ede7a80337e0186e`, retrieved 2026-10-18, 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/ptztfte255-1b-datasheet.pdf)