component
BZM55B5V1-TR
Public Made by Adomby adom
Vishay Intertech Zener Diodes, SOD-323. 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
markdownBZM55B5V1-TR
Vishay Intertech · Zener Diodes · SOD-323
BZM55B5V1-TR from Vishay Intertech, in a SOD-323. 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-323 |
| 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 | 5 | 5.1 | 5.2 | V | IZT1 = 5 mA, Tamb = 25 °C | 3 |
| Reverse leakage current at 25 °C | IR | 0.1 | μA | VR = 1 V, Tamb = 25 °C | 3 | ||
| Reverse leakage current at 125 °C | IR | 2 | μA | VR = 1 V, Tamb = 125 °C | 3 | ||
| Dynamic resistance | ZZ | 60 | Ω | IZT1 = 5 mA, f = 1 kHz | 3 | ||
| Dynamic resistance (knee) | ZZK | 550 | Ω | IZT2 = 1 mA, f = 1 kHz | 3 | ||
| Temperature coefficient of VZ | TKVZ | -0.02 | 0.02 | %/K | IZT1 = 5 mA | 3 | |
| Power dissipation | Ptot | 500 | mW | RthJA ≤ 300 K/W, Tamb = 25 °C | 1 | ||
| Junction temperature | Tj | 175 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 175 | °C | 1 | ||
| Forward voltage | VF | 1.5 | V | IF = 200 mA | 1 | ||
| Thermal resistance junction to ambient air | RthJA | 500 | K/W | Mounted on epoxy-glass hard tissue, fig. 1 | 1 | ||
| Thermal resistance junction to tie point | RthJL | 300 | K/W | 35 μm copper clad, 0.9 mm2 copper area per electrode | 1 | ||
| Test current | IZT1 | 5 | mA | 3 | |||
| Test current | IZT2 | 1 | mA | 3 |
CAD (KiCad official)
- Symbol:
BZM55B5V1-TR - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
bzm55b5v1-tr-etched.step/bzm55b5v1-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzm55b5v1-tr.step/bzm55b5v1-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (7 pp, sha256
33bfeae3d56c0619, 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).