component
BZM55C30-TR
Public Made by Adomby adom
Vishay Intertech Zener Diodes, SOD-80. 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
markdownBZM55C30-TR
Vishay Intertech · Zener Diodes · SOD-80
BZM55C30-TR from Vishay Intertech, in a SOD-80. 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 | Vishay Intertech |
| Package | SOD-80 |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage VZ | VZ | 28 | 30 | 32 | V | at IZT1 = 5 mA | 2 |
| Reverse leakage current IR at 25 °C | IR | 0.1 | μA | at VR = 22 V, Tamb = 25 °C | 2 | ||
| Reverse leakage current IR at 125 °C | IR | 2 | μA | at VR = 22 V, Tamb = 125 °C | 2 | ||
| Dynamic resistance ZZ | ZZ | 80 | Ω | at IZT1 = 5 mA, f = 1 kHz | 2 | ||
| Dynamic resistance ZZK | ZZK | 220 | Ω | at IZT2 = 1 mA | 2 | ||
| Temperature coefficient of VZ | TKVZ | 0.04 | 0.12 | %/K | 2 | ||
| Reverse leakage current (voltage group 9V1 to 75, additional measurement) | IR | 35 | nA | at 95 % VZmin, Tj = 25 °C | 2 | ||
| Power dissipation | Ptot | 500 | mW | RthJA ≤ 300 K/W | 1 | ||
| Forward voltage | VF | 1.5 | V | IF = 200 mA | 1 | ||
| Junction temperature | Tj | 175 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 175 | °C | 1 | ||
| Junction to ambient air thermal resistance | RthJA | 500 | K/W | Mounted on epoxy-glass hard tissue, fig. 1 | 1 | ||
| Junction tie point thermal resistance | RthJL | 300 | K/W | 35 μm copper clad, 0.9 mm2 copper area per electrode | 1 |
CAD (KiCad official)
- Symbol:
BZM55C30-TR - Footprint:
Diode_SMD:D_MiniMELF - 3D model: SOD-80 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (7 pp, sha256
2cc753251a5d3b40, retrieved 2026-10-15, 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).