component
1SMA5928B
Public Made by Adomby adom
SY(顺烨) Zener Diodes, 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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1SMA5928B
SY(顺烨) · Zener Diodes · SMA
1SMA5928B from SY(顺烨), in a 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 | SY(顺烨) |
| Package | 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 tolerance (suffix B = ±5%) | VZ | -5 | 5 | % | Suffix B | 2 | |
| Maximum forward voltage | VF | 1.5 | V | @ IF = 200 mA | 1 | ||
| Maximum Zener impedance | ZZT | 7 | Ω | @ IZT | 2 | ||
| Maximum Zener impedance | ZZK | 550 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum reverse leakage current | IR | 1 | μA | @ VR = 9.9 V | 2 | ||
| Maximum DC zener current | IZM | 115 | mA | 2 | |||
| DC power dissipation | PD | 1.5 | W | @ TL = 75 °C, measured zero lead length (1" square copper pad, FR-4 board) | 1 | ||
| Derate above 75 °C (lead temperature) | PD | 20 | mW/°C | Derate above TL = 75 °C | 1 | ||
| DC power dissipation | PD | 0.5 | W | @ Ta = 25 °C, FR-4 board | 1 | ||
| Derate above 25 °C (ambient) | PD | 4 | mW/°C | Derate above Ta = 25 °C, FR-4 board | 1 | ||
| Thermal resistance junction to lead | RӨJL | 50 | °C/W | 1 | |||
| Thermal resistance junction to ambient | RӨJA | 250 | °C/W | FR-4 board | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -65 | 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 | Measured zero lead length(1" square copper pad, FR-4 board) 20 | 1 |
CAD (KiCad official)
- Symbol:
1SMA5928B - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
1sma5928b-etched.step/1sma5928b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma5928b.step/1sma5928b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SY(顺烨) datasheet (2 pp, sha256
21026bca49ebf530, retrieved 2026-10-17, 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).
# 1SMA5928B
**SY(顺烨)** · Zener Diodes · SMA
1SMA5928B from SY(顺烨), in a 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 | SY(顺烨) |
| Package | 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 tolerance (suffix B = ±5%) | VZ | -5 | | 5 | % | Suffix B | 2 |
| Maximum forward voltage | VF | | | 1.5 | V | @ IF = 200 mA | 1 |
| Maximum Zener impedance | ZZT | | | 7 | Ω | @ IZT | 2 |
| Maximum Zener impedance | ZZK | | | 550 | Ω | @ IZK = 0.25 mA | 2 |
| Maximum reverse leakage current | IR | | | 1 | μA | @ VR = 9.9 V | 2 |
| Maximum DC zener current | IZM | | | 115 | mA | | 2 |
| DC power dissipation | PD | | | 1.5 | W | @ TL = 75 °C, measured zero lead length (1" square copper pad, FR-4 board) | 1 |
| Derate above 75 °C (lead temperature) | PD | | 20 | | mW/°C | Derate above TL = 75 °C | 1 |
| DC power dissipation | PD | | | 0.5 | W | @ Ta = 25 °C, FR-4 board | 1 |
| Derate above 25 °C (ambient) | PD | | 4 | | mW/°C | Derate above Ta = 25 °C, FR-4 board | 1 |
| Thermal resistance junction to lead | RӨJL | | 50 | | °C/W | | 1 |
| Thermal resistance junction to ambient | RӨJA | | 250 | | °C/W | FR-4 board | 1 |
| Operating junction and storage temperature range | TJ, TSTG | -65 | | 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 | | Measured zero lead length(1" square copper pad, FR-4 board) 20 | 1 |
## CAD (KiCad official)
- Symbol: `1SMA5928B`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `1sma5928b-etched.step` / `1sma5928b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1sma5928b.step` / `1sma5928b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [SY(顺烨) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906636011847680) (2 pp, sha256 `21026bca49ebf530`, retrieved 2026-10-17, 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/1sma5928b-datasheet.pdf)