component
ZMM5239B
Public Made by Adomby adom
JSMSEMI Zener Diodes, MiniMELF. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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ZMM5239B
JSMSEMI · Zener Diodes · MiniMELF
ZMM5239B from JSMSEMI, in a MiniMELF. 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 color band; for the ZMM5239B the nominal zener voltage is 9.1 V at IZT = 20 mA. |
| 2 | A | passive | Anode terminal, the end opposite the color band; maximum power dissipation is 500 mW at Tamb = 75 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | MiniMELF |
| Category | Diodes |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
ZMM5239B - Footprint:
Diode_SMD:D_MiniMELF - 3D model: MiniMELF (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (3 pp, sha256
694ca6095f81524a, retrieved 2026-10-13, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+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).
# ZMM5239B
**JSMSEMI** · Zener Diodes · MiniMELF
ZMM5239B from JSMSEMI, in a MiniMELF. 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 color band; for the ZMM5239B the nominal zener voltage is 9.1 V at IZT = 20 mA. |
| 2 | A | passive | Anode terminal, the end opposite the color band; maximum power dissipation is 500 mW at Tamb = 75 °C. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | MiniMELF |
| Category | Diodes |
| Pins | 2 |
## CAD (KiCad official)
- Symbol: `ZMM5239B`
- Footprint: `Diode_SMD:D_MiniMELF`
- 3D model: MiniMELF (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590456116980453376) (3 pp, sha256 `694ca6095f81524a`, retrieved 2026-10-13, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/zmm5239b-datasheet.pdf)