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MS05D5UC-B
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MSKSEMI ESD Protection Devices, SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MS05D5UC-B
MSKSEMI · ESD Protection Devices · SOD-523
MS05D5UC-B from MSKSEMI, 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 | Pin1 | passive | One terminal of the bidirectional ESD protection for one I/O line, with a reverse stand-off voltage (VRWM) of 5.0 V and a minimum reverse breakdown voltage (VBR) of 6.0 V at IT = 1 mA. |
| 2 | Pin2 | passive | The other terminal of the bidirectional ESD protection for one I/O line, with the same 5.0 V working voltage and 6.0 V minimum breakdown limits as Pin1. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOD-523 |
| Category | TVS/Fuse/Board Level Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage | VRWM | 5 | V | 3 | |||
| Reverse Breakdown Voltage | VBR | 6 | 10 | V | IT=1mA | 3 | |
| Reverse Leakage Current | IR | 200 | nA | VRWM=5V, T=25°C | 3 | ||
| ESD Clamping Voltage (note 1) | VC | 11.9 | V | IPP = 4A, tp = 0.2/100ns | 3 | ||
| ESD Clamping Voltage (note 1) | VC | 23.4 | V | IPP = 16A, tp = 0.2/100ns | 3 | ||
| Dynamic Resistance (notes 1,2) | RDYN | 0.95 | Ω | TLP=0.2/100ns | 3 | ||
| Junction Capacitance | Cj | 0.5 | 1 | pF | VR =0V, f=1MHz | 3 | |
| Operating Temperature | TJ | -55 | 125 | °C | 2 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
MS05D5UC-B - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
ms05d5uc-b-etched.step/ms05d5uc-b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ms05d5uc-b.step/ms05d5uc-b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (6 pp, sha256
f9cd1da24d3662fa, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).
# MS05D5UC-B
**MSKSEMI** · ESD Protection Devices · SOD-523
MS05D5UC-B from MSKSEMI, 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 | Pin1 | passive | One terminal of the bidirectional ESD protection for one I/O line, with a reverse stand-off voltage (VRWM) of 5.0 V and a minimum reverse breakdown voltage (VBR) of 6.0 V at IT = 1 mA. |
| 2 | Pin2 | passive | The other terminal of the bidirectional ESD protection for one I/O line, with the same 5.0 V working voltage and 6.0 V minimum breakdown limits as Pin1. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOD-523 |
| Category | TVS/Fuse/Board Level Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage | VRWM | | | 5 | V | | 3 |
| Reverse Breakdown Voltage | VBR | 6 | | 10 | V | IT=1mA | 3 |
| Reverse Leakage Current | IR | | | 200 | nA | VRWM=5V, T=25°C | 3 |
| ESD Clamping Voltage (note 1) | VC | | | 11.9 | V | IPP = 4A, tp = 0.2/100ns | 3 |
| ESD Clamping Voltage (note 1) | VC | | | 23.4 | V | IPP = 16A, tp = 0.2/100ns | 3 |
| Dynamic Resistance (notes 1,2) | RDYN | | | 0.95 | Ω | TLP=0.2/100ns | 3 |
| Junction Capacitance | Cj | 0.5 | | 1 | pF | VR =0V, f=1MHz | 3 |
| Operating Temperature | TJ | -55 | | 125 | °C | | 2 |
| Storage Temperature | TSTG | -55 | | 150 | °C | | 2 |
## CAD (KiCad official)
- Symbol: `MS05D5UC-B`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `ms05d5uc-b-etched.step` / `ms05d5uc-b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ms05d5uc-b.step` / `ms05d5uc-b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MSKSEMI datasheet](docs/ms05d5uc-b-datasheet.pdf) (6 pp, sha256 `f9cd1da24d3662fa`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/ms05d5uc-b-datasheet.pdf)