component
ZMM27V
Public Made by Adomby adom
JSMSEMI Zener Diodes, LL-34. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownZMM27V
JSMSEMI · Zener Diodes · LL-34
ZMM27V from JSMSEMI, in a LL-34. 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 | JSMSEMI |
| Package | LL-34 |
| 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 |
|---|---|---|---|---|---|---|---|
| Power Dissipation | Ptot | 500 | mW | Ta = 25 °C; valid provided that electrodes are kept at ambient temperature | 1 | ||
| Junction Temperature | Tj | 175 | °C | Ta = 25 °C | 1 | ||
| Storage Temperature Range | Tstg | -55 | 175 | °C | Ta = 25 °C | 1 | |
| Thermal Resistance Junction to Ambient Air | RθJA | 0.3 | K/mW | Ta = 25 °C; valid provided that electrodes are kept at ambient temperature | 1 | ||
| Forward Voltage | VF | 1 | V | IF = 100 mA | 1 |
CAD (KiCad official)
- Symbol:
ZMM27V - Footprint:
Diode_SMD:D_MiniMELF - 3D model: LL-34 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (8 pp, sha256
d7c1952026ca32c1, retrieved 2026-10-22, 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).