component
1SMA5927B-927B
Public Made by Adomby adom
ShunYe 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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1SMA5927B-927B
ShunYe · Zener Diodes · SMA
1SMA5927B-927B from ShunYe, 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 | ShunYe |
| 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 |
|---|---|---|---|---|---|---|---|
| DC Power Dissipation @ TL = 75 °C | PD | 1.5 | W | TL = 75 °C; measured zero lead length (1" square copper pad, FR-4 board) | 1 | ||
| Thermal Resistance Junction to Lead | RӨJL | 50 | °C/W | Measured zero lead length (1" square copper pad, FR-4 board) | 1 | ||
| DC Power Dissipation @ Ta = 25 °C | PD | 0.5 | W | Ta = 25 °C (FR-4 board) | 1 | ||
| Thermal Resistance Junction to Ambient | RӨJA | 250 | °C/W | FR-4 board | 1 | ||
| Maximum Forward Voltage | VF | 1.5 | V | IF = 200 mA | 1 | ||
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 | 150 | °C | 1 | ||
| Zener voltage tolerance (B suffix) | -5 | 5 | % | Suffix B indicates ±5% tolerance | 2 | ||
| Maximum Zener Impedance | ZZT | 6.5 | Ω | @ IZT = 31.2 mA | 2 | ||
| Maximum Zener Impedance | ZZK | 550 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum Reverse Leakage Current | IR | 1 | μA | @ VR = 9.1 V | 2 | ||
| Maximum DC Zener Current | IZM | 125 | mA | 2 | |||
| Derate above 75 °C (power dissipation at TL) | 20 | mW/°C | Derate above 75 °C | 1 | |||
| Derate above 25 °C (power dissipation at Ta) | 4 | mW/°C | Derate above 25 °C (FR-4 board) | 1 | |||
| Nominal Zener Voltage | VZ | 12 | V | @ IZT = 31.2 mA | 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 | copper | Measured zero lead length(1" square copper pad, FR-4 board) 20 | 1 |
CAD (KiCad official)
- Symbol:
1SMA5927B-927B - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
1sma5927b-927b-etched.step/1sma5927b-927b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma5927b-927b.step/1sma5927b-927b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ShunYe datasheet (2 pp, sha256
9fff3d92a569ec69, retrieved 2026-10-16, 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).
# 1SMA5927B-927B
**ShunYe** · Zener Diodes · SMA
1SMA5927B-927B from ShunYe, 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 | ShunYe |
| 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 |
|---|---|---|---|---|---|---|---|
| DC Power Dissipation @ TL = 75 °C | PD | | | 1.5 | W | TL = 75 °C; measured zero lead length (1" square copper pad, FR-4 board) | 1 |
| Thermal Resistance Junction to Lead | RӨJL | | | 50 | °C/W | Measured zero lead length (1" square copper pad, FR-4 board) | 1 |
| DC Power Dissipation @ Ta = 25 °C | PD | | | 0.5 | W | Ta = 25 °C (FR-4 board) | 1 |
| Thermal Resistance Junction to Ambient | RӨJA | | | 250 | °C/W | FR-4 board | 1 |
| Maximum Forward Voltage | VF | | | 1.5 | V | IF = 200 mA | 1 |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 | | 150 | °C | | 1 |
| Zener voltage tolerance (B suffix) | | -5 | | 5 | % | Suffix B indicates ±5% tolerance | 2 |
| Maximum Zener Impedance | ZZT | | | 6.5 | Ω | @ IZT = 31.2 mA | 2 |
| Maximum Zener Impedance | ZZK | | | 550 | Ω | @ IZK = 0.25 mA | 2 |
| Maximum Reverse Leakage Current | IR | | | 1 | μA | @ VR = 9.1 V | 2 |
| Maximum DC Zener Current | IZM | | | 125 | mA | | 2 |
| Derate above 75 °C (power dissipation at TL) | | | 20 | | mW/°C | Derate above 75 °C | 1 |
| Derate above 25 °C (power dissipation at Ta) | | | 4 | | mW/°C | Derate above 25 °C (FR-4 board) | 1 |
| Nominal Zener Voltage | VZ | | 12 | | V | @ IZT = 31.2 mA | 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 | copper | | Measured zero lead length(1" square copper pad, FR-4 board) 20 | 1 |
## CAD (KiCad official)
- Symbol: `1SMA5927B-927B`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `1sma5927b-927b-etched.step` / `1sma5927b-927b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1sma5927b-927b.step` / `1sma5927b-927b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [ShunYe datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590236972322631680) (2 pp, sha256 `9fff3d92a569ec69`, retrieved 2026-10-16, 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/1sma5927b-927b-datasheet.pdf)