MMBZ5231BW-7-F

@@ -0,0 +1,44 @@+# MMBZ5231BW-7-F++**Diodes Incorporated** · Zener Diodes · SOT-323++MMBZ5231BW-7-F from Diodes Incorporated, in a SOT-323. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | K | passive | Cathode of the Zener diode. Under reverse bias, this terminal is held at approximately +5.1V above the anode when conducting IZT = 20mA (VZ range 4.85V-5.36V). Maximum reverse leakage 5.0µA at VR = 2.0V. |+| 2 | NC | unconnected | No internal connection on the second SOT-323 lead. Device schematic shows a single two-terminal Zener element; only two pads are electrically active. |+| 3 | A | passive | Anode of the Zener diode. Forward voltage VF = 0.9V max at IF = 10mA. Under normal Zener operation this pin is the return/ground-referenced terminal. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Diodes Incorporated |+| Package | SOT-323 |+| Category | Diodes |+| Pins | 3 |++## Ordering variants++Same part, different packaging or reel option.++- `MMBZ5231BW-7-F`++## CAD (KiCad official)++- Symbol: `MMBZ5231BW-7-F`+- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`+- 3D model: SOT-323 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Diodes Incorporated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560091775697788928) (5 pp, sha256 `e002c9bed5a34a64`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/mmbz5231bw-7-f-datasheet.pdf)

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