component
1SMA4747A
Public Made by Adomby adom
hongjiacheng Zener Diodes, DO-214AC(SMA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 3h ago |
| viewers | 3h ago |
| 1sma4747a-etched.glb | 3h ago |
| 1sma4747a-etched.step | 3h ago |
| 1sma4747a-hero.glb | 3h ago |
| 1sma4747a-hero.overlay.json | 3h ago |
| 1sma4747a.glb | 3h ago |
| 1sma4747a.kicad_mod | 3h ago |
| 1sma4747a.kicad_sym | 3h ago |
| 1sma4747a.lbr | 3h ago |
| 1sma4747a.step | 3h ago |
| package.json | 3h ago |
| page.json | 3h ago |
| README.md | 3h ago |
1SMA4747A
hongjiacheng · Zener Diodes · DO-214AC(SMA)
1SMA4747A from hongjiacheng, 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 end marked by the cathode line on the body; the zener (reverse) voltage VZ of 19.0 to 21.2 V (20 V nominal) at IZT=47... see review note |
| 2 | A | passive | Anode, the end opposite the cathode line; forward voltage VF is 1.5 V max at IF=200 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal zener voltage (min) | VZ | 19 | V | IZT = 13 mA | 2 | ||
| Nominal zener voltage | VZ | 20 | V | IZT = 13 mA | 2 | ||
| Nominal zener voltage (max) | VZ | 21.2 | V | IZT = 13 mA | 2 | ||
| Maximum zener impedance | ZZT | 22 | Ω | @ IZT = 13 mA | 2 | ||
| Reverse leakage current | IR | 5 | μA | @ VR = 15 V | 2 | ||
| Admissible zener current | IZM | 47 | mA | 2 | |||
| Power dissipation | PD | 1000 | mW | Tc=75℃ | 1 | ||
| Forward voltage | VF | 1.5 | V | IF=200mA | 1 | ||
| Storage temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Junction temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Typical thermal resistance, junction to ambient | RθJ-A | 250 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
1SMA4747A - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
1sma4747a-etched.step/1sma4747a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4747a.step/1sma4747a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: hongjiacheng datasheet (4 pp, sha256
a029b6256b4d07a8, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).