component
TPSMB82A
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Littelfuse TVS, DO-214AA(SMBJ). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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TPSMB82A
Littelfuse · TVS · DO-214AA(SMBJ)
TPSMB82A from Littelfuse, in a DO-214AA(SMBJ). 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 of the unidirectional TPSMB82A, marked by the color band; connect to the protected line, with a stand-off voltage VR of 70.1V and breakdown voltage of 77.9V min to 86.1V max at 1mA. |
| 2 | A | passive | Anode of the unidirectional TPSMB82A, normally connected to ground, with a maximum clamping voltage of 113.0V at 5.4A peak pulse current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DO-214AA(SMBJ) |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 77.9 | 86.1 | V | @ IT = 1 mA | 2 | |
| Reverse Stand-off Voltage | VR | 70.1 | V | 2 | |||
| Maximum Clamping Voltage | VC | 113 | V | @ Ipp = 5.4 A | 2 | ||
| Maximum Peak Pulse Current | Ipp | 5.4 | A | 2 | |||
| Maximum Reverse Leakage | IR | 1 | µA | @ VR | 2 | ||
| Maximum Temperature coefficient of VBR | αT | 0.105 | %/C | 2 | |||
| Test Current | IT | 1 | mA | 2 | |||
| Typical IR at 150°C | IR | 8 | µA | @150°C | 2 | ||
| Maximum Instantaneous Forward Voltage (unidirectional only) | VF | 3.5 | V | at 50A | 1 | ||
| Peak Pulse Power Dissipation | PPPM | 600 | W | 10/1000µs waveform | 1 | ||
| Power Dissipation on infinite heat sink | PM(AV) | 5 | W | TL=50°C | 1 | ||
| Peak Forward Surge Current | IFSM | 100 | A | 8.3ms single half sine wave | 1 | ||
| Operating Junction Temperature Range | TJ | -65 | 175 | °C | VBR≤91V | 1 | |
| Storage Temperature Range | TSTG | -65 | 175 | °C | 1 | ||
| Thermal Resistance Junction to Lead | RθJL | 20 | °C/W | Typical | 1 | ||
| Thermal Resistance Junction to Ambient | RθJA | 100 | °C/W | Typical | 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 | 260°C/10 seconds at terminals ■ Matte tin lead-free plated | 1 |
CAD (KiCad official)
- Symbol:
TPSMB82A - Footprint:
Diode_SMD:D_SMB - 3D model: DO-214AA(SMBJ) (KiCad packages3D, STEP)
- 3D model files:
tpsmb82a-etched.step/tpsmb82a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpsmb82a.step/tpsmb82a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (6 pp, sha256
8cc50e1afb0bea8d, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).
# TPSMB82A
**Littelfuse** · TVS · DO-214AA(SMBJ)
TPSMB82A from Littelfuse, in a DO-214AA(SMBJ). 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 of the unidirectional TPSMB82A, marked by the color band; connect to the protected line, with a stand-off voltage VR of 70.1V and breakdown voltage of 77.9V min to 86.1V max at 1mA. |
| 2 | A | passive | Anode of the unidirectional TPSMB82A, normally connected to ground, with a maximum clamping voltage of 113.0V at 5.4A peak pulse current. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DO-214AA(SMBJ) |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 77.9 | | 86.1 | V | @ IT = 1 mA | 2 |
| Reverse Stand-off Voltage | VR | | 70.1 | | V | | 2 |
| Maximum Clamping Voltage | VC | | | 113 | V | @ Ipp = 5.4 A | 2 |
| Maximum Peak Pulse Current | Ipp | | | 5.4 | A | | 2 |
| Maximum Reverse Leakage | IR | | | 1 | µA | @ VR | 2 |
| Maximum Temperature coefficient of VBR | αT | | | 0.105 | %/C | | 2 |
| Test Current | IT | | 1 | | mA | | 2 |
| Typical IR at 150°C | IR | | 8 | | µA | @150°C | 2 |
| Maximum Instantaneous Forward Voltage (unidirectional only) | VF | | | 3.5 | V | at 50A | 1 |
| Peak Pulse Power Dissipation | PPPM | | | 600 | W | 10/1000µs waveform | 1 |
| Power Dissipation on infinite heat sink | PM(AV) | | | 5 | W | TL=50°C | 1 |
| Peak Forward Surge Current | IFSM | | | 100 | A | 8.3ms single half sine wave | 1 |
| Operating Junction Temperature Range | TJ | -65 | | 175 | °C | VBR≤91V | 1 |
| Storage Temperature Range | TSTG | -65 | | 175 | °C | | 1 |
| Thermal Resistance Junction to Lead | RθJL | | 20 | | °C/W | Typical | 1 |
| Thermal Resistance Junction to Ambient | RθJA | | 100 | | °C/W | Typical | 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 | 260°C/10 seconds at terminals ■ Matte tin lead-free plated | 1 |
## CAD (KiCad official)
- Symbol: `TPSMB82A`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: DO-214AA(SMBJ) (KiCad packages3D, STEP)
- 3D model files: `tpsmb82a-etched.step` / `tpsmb82a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpsmb82a.step` / `tpsmb82a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Littelfuse datasheet](docs/tpsmb82a-datasheet.pdf) (6 pp, sha256 `8cc50e1afb0bea8d`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/tpsmb82a-datasheet.pdf)