component
MM5Z4V7B
Public Made by Adomby adom
Tak Cheong Zener Diodes, SOD-523. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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MM5Z4V7B
Tak Cheong · Zener Diodes · SOD-523
MM5Z4V7B from Tak Cheong, in a SOD-523. 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 | Tak Cheong |
| Package | SOD-523 |
| 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 | 4.61 | 4.7 | 4.79 | V | @ IZT = 5 mA, pulse 10 ms | 1 |
| Zener impedance | ZZT | 80 | Ω | @ IZT = 5 mA | 1 | ||
| Zener impedance at knee current | ZZK | 470 | Ω | @ IZK = 1 mA | 1 | ||
| Reverse leakage current | IR | 2.7 | μA | @ VR = 2 V | 1 | ||
| Forward voltage | VF | 1 | V | @ IF = 10 mA | 2 | ||
| Power dissipation | PD | 200 | mW | 1 | |||
| Storage temperature range | TSTG | -55 | 150 | °C | 1 | ||
| Operating temperature range | TOPR | -55 | 150 | °C | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Matte Tin(Sn) Terminal Finish Band Indicates Cathode | 1 |
CAD (KiCad official)
- Symbol:
MM5Z4V7B - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
mm5z4v7b-etched.step/mm5z4v7b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mm5z4v7b.step/mm5z4v7b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Tak Cheong datasheet (5 pp, sha256
b8a85e15a3a7b3c9, retrieved 2026-10-21, 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).
# MM5Z4V7B
**Tak Cheong** · Zener Diodes · SOD-523
MM5Z4V7B from Tak Cheong, in a SOD-523. 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 | Tak Cheong |
| Package | SOD-523 |
| 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 | 4.61 | 4.7 | 4.79 | V | @ IZT = 5 mA, pulse 10 ms | 1 |
| Zener impedance | ZZT | | | 80 | Ω | @ IZT = 5 mA | 1 |
| Zener impedance at knee current | ZZK | | | 470 | Ω | @ IZK = 1 mA | 1 |
| Reverse leakage current | IR | | | 2.7 | μA | @ VR = 2 V | 1 |
| Forward voltage | VF | | | 1 | V | @ IF = 10 mA | 2 |
| Power dissipation | PD | | | 200 | mW | | 1 |
| Storage temperature range | TSTG | -55 | | 150 | °C | | 1 |
| Operating temperature range | TOPR | -55 | | 150 | °C | | 1 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | Matte Tin(Sn) Terminal Finish Band Indicates Cathode | 1 |
## CAD (KiCad official)
- Symbol: `MM5Z4V7B`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `mm5z4v7b-etched.step` / `mm5z4v7b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mm5z4v7b.step` / `mm5z4v7b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Tak Cheong datasheet](docs/mm5z4v7b-datasheet.pdf) (5 pp, sha256 `b8a85e15a3a7b3c9`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/mm5z4v7b-datasheet.pdf)