component
SML4742A
Public Made by Adomby adom
JUXING Zener Diodes, DO-214AC(SMA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSML4742A
JUXING · Zener Diodes · DO-214AC(SMA)
SML4742A from JUXING, 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, marked by the laser band on the package; the SML4742 is a 12 V nominal Zener (21 mA test current, ZZT 9 Ω, IR 5 uA at 9.1 V, suffix A = ±5%). |
| 2 | A | passive | Anode, the terminal opposite the cathode band; the device is rated at 1.0 W power dissipation, with a maximum junction temperature of 150 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JUXING |
| Package | DO-214AC(SMA) |
| Category | Diodes |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
SML4742A - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
sml4742a-etched.step/sml4742a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sml4742a.step/sml4742a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JUXING datasheet (2 pp, sha256
7151ff554ae57bd2, retrieved 2026-10-13, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-opus-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).