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BNUBT32A05L02
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BORN ESD And Surge Protection (TVS/ESD), SOT-323. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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BNUBT32A05L02
BORN · ESD And Surge Protection (TVS/ESD) · SOT-323
BNUBT32A05L02 from BORN, in a SOT-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 | I/O1 | passive | ESD-protected line 1 (unidirectional TVS diode anode side), 5.0V max reverse working voltage, 0.3pF typical junction capacitance, 72W peak pulse power (8/20us). |
| 2 | I/O2 | passive | ESD-protected line 2 (unidirectional TVS diode anode side), 5.0V max reverse working voltage, 0.3pF typical junction capacitance, 72W peak pulse power (8/20us). |
| 3 | COMMON | passive | Common pin shared by both diodes in the schematic, tied to the other side of the two unidirectional TVS diodes (the datasheet does not label it as GND). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | SOT-323 |
| Category | Circuit Protection |
| Pins | 3 |
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 | 2 | |||
| Reverse Breakdown Voltage | VBR | 6 | 7.5 | 9.5 | V | IT=1mA | 2 |
| Reverse Leakage Current | IR | 0.5 | uA | VRWM=5V,T=25◦C | 2 | ||
| Peak Pulse Current | IPP | 4 | A | tp=8/20us | 2 | ||
| Clamping Voltage | VC | 15 | 18 | V | IPP=4.0A, tp=8/20us | 2 | |
| Junction Capacitance | Cj | 0.3 | 0.5 | pF | VR=0V,T=25◦C,f=1MHZ | 2 | |
| Peak Pulse Power | PPP | 72 | Watts | tp=8/20μs | 2 | ||
| Peak Pulse Current | IPP | 4 | A | tp=8/20μs | 2 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | 20 | KV | 2 | |||
| ESD per IEC 61000-4-2 (Contact) | VESD | 15 | KV | 2 | |||
| Lead Soldering Temperature | TL | 260 | ◦C | 10 seconds | 2 | ||
| Junction Temperature | TJ | -55 | 150 | ◦C | 2 | ||
| Storage Temperature | Tstg | -55 | 150 | ◦C | 2 |
CAD (KiCad official)
- Symbol:
BNUBT32A05L02 - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
bnubt32a05l02-etched.step/bnubt32a05l02-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bnubt32a05l02.step/bnubt32a05l02.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BORN datasheet (4 pp, sha256
c6766fcb455eab65, retrieved 2026-10-21, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# BNUBT32A05L02
**BORN** · ESD And Surge Protection (TVS/ESD) · SOT-323
BNUBT32A05L02 from BORN, in a SOT-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 | I/O1 | passive | ESD-protected line 1 (unidirectional TVS diode anode side), 5.0V max reverse working voltage, 0.3pF typical junction capacitance, 72W peak pulse power (8/20us). |
| 2 | I/O2 | passive | ESD-protected line 2 (unidirectional TVS diode anode side), 5.0V max reverse working voltage, 0.3pF typical junction capacitance, 72W peak pulse power (8/20us). |
| 3 | COMMON | passive | Common pin shared by both diodes in the schematic, tied to the other side of the two unidirectional TVS diodes (the datasheet does not label it as GND). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | SOT-323 |
| Category | Circuit Protection |
| Pins | 3 |
## 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 | | 2 |
| Reverse Breakdown Voltage | VBR | 6 | 7.5 | 9.5 | V | IT=1mA | 2 |
| Reverse Leakage Current | IR | | | 0.5 | uA | VRWM=5V,T=25◦C | 2 |
| Peak Pulse Current | IPP | | | 4 | A | tp=8/20us | 2 |
| Clamping Voltage | VC | | 15 | 18 | V | IPP=4.0A, tp=8/20us | 2 |
| Junction Capacitance | Cj | | 0.3 | 0.5 | pF | VR=0V,T=25◦C,f=1MHZ | 2 |
| Peak Pulse Power | PPP | | | 72 | Watts | tp=8/20μs | 2 |
| Peak Pulse Current | IPP | | | 4 | A | tp=8/20μs | 2 |
| ESD per IEC 61000-4-2 (Air) | VESD | | | 20 | KV | | 2 |
| ESD per IEC 61000-4-2 (Contact) | VESD | | | 15 | KV | | 2 |
| Lead Soldering Temperature | TL | | | 260 | ◦C | 10 seconds | 2 |
| Junction Temperature | TJ | -55 | | 150 | ◦C | | 2 |
| Storage Temperature | Tstg | -55 | | 150 | ◦C | | 2 |
## CAD (KiCad official)
- Symbol: `BNUBT32A05L02`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `bnubt32a05l02-etched.step` / `bnubt32a05l02-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bnubt32a05l02.step` / `bnubt32a05l02.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [BORN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590931218517618688) (4 pp, sha256 `c6766fcb455eab65`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/bnubt32a05l02-datasheet.pdf)