component
TPSMC68A
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Littelfuse TVS, DO-214AB(SMCJ). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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TPSMC68A
Littelfuse · TVS · DO-214AB(SMCJ)
TPSMC68A from Littelfuse, in a DO-214AB(SMCJ). 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 | Cathode | passive | Cathode terminal of the unidirectional TVS, marked by the cathode band, and it goes to the positive side of the protected line (VR 58.10V, VBR 64.60V min at 1mA, VC 92.0V at 16.5A Ipp). |
| 2 | Anode | passive | Anode terminal of the unidirectional TVS, and it goes to the return or ground side (max forward voltage 3.5V at 100A). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DO-214AB(SMCJ) |
| Category | Circuit 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 | VR | 58.1 | V | 2 | |||
| Breakdown Voltage | VBR | 64.6 | 71.4 | V | @ IT = 1 mA | 2 | |
| Test Current | IT | 1 | mA | 2 | |||
| Maximum Clamping Voltage | VC | 92 | V | @ Ipp = 16.5 A | 2 | ||
| Maximum Peak Pulse Current | Ipp | 16.5 | A | 2 | |||
| Maximum Reverse Leakage | IR | 1 | µA | @ VR | 2 | ||
| Peak Pulse Power Dissipation | PPPM | 1500 | W | 10/1000µs waveform, TA=25°C | 1 | ||
| Power Dissipation on Infinite Heat Sink | PM(AV) | 6.5 | W | TA=50°C | 1 | ||
| Peak Forward Surge Current | IFSM | 200 | A | 8.3ms single half sine wave, unidirectional only | 1 | ||
| Maximum Instantaneous Forward Voltage | VF | 3.5 | V | at 100A, unidirectional only | 1 | ||
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 | 150 | °C | 1 | ||
| Thermal Resistance Junction to Lead | RθJL | 15 | °C/W | Typical | 1 | ||
| Thermal Resistance Junction to Ambient | RθJA | 75 | °C/W | Typical | 1 | ||
| Voltage Tolerance | VBR tol | -5 | 5 | % | 5% Vbr voltage tolerance (A suffix) | 5 |
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 lead-free plated ■ Halogen free and RoHS | 1 |
CAD (KiCad official)
- Symbol:
TPSMC68A - Footprint:
Diode_SMD:D_SMC - 3D model: DO-214AB(SMCJ) (KiCad packages3D, STEP)
- 3D model files:
tpsmc68a-etched.step/tpsmc68a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpsmc68a.step/tpsmc68a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (5 pp, sha256
dd1f7a59f449c6bc, 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).
# TPSMC68A
**Littelfuse** · TVS · DO-214AB(SMCJ)
TPSMC68A from Littelfuse, in a DO-214AB(SMCJ). 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 | Cathode | passive | Cathode terminal of the unidirectional TVS, marked by the cathode band, and it goes to the positive side of the protected line (VR 58.10V, VBR 64.60V min at 1mA, VC 92.0V at 16.5A Ipp). |
| 2 | Anode | passive | Anode terminal of the unidirectional TVS, and it goes to the return or ground side (max forward voltage 3.5V at 100A). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DO-214AB(SMCJ) |
| Category | Circuit 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 | VR | 58.1 | | | V | | 2 |
| Breakdown Voltage | VBR | 64.6 | | 71.4 | V | @ IT = 1 mA | 2 |
| Test Current | IT | | 1 | | mA | | 2 |
| Maximum Clamping Voltage | VC | | | 92 | V | @ Ipp = 16.5 A | 2 |
| Maximum Peak Pulse Current | Ipp | | | 16.5 | A | | 2 |
| Maximum Reverse Leakage | IR | | | 1 | µA | @ VR | 2 |
| Peak Pulse Power Dissipation | PPPM | | | 1500 | W | 10/1000µs waveform, TA=25°C | 1 |
| Power Dissipation on Infinite Heat Sink | PM(AV) | | | 6.5 | W | TA=50°C | 1 |
| Peak Forward Surge Current | IFSM | | | 200 | A | 8.3ms single half sine wave, unidirectional only | 1 |
| Maximum Instantaneous Forward Voltage | VF | | | 3.5 | V | at 100A, unidirectional only | 1 |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 | | 150 | °C | | 1 |
| Thermal Resistance Junction to Lead | RθJL | | 15 | | °C/W | Typical | 1 |
| Thermal Resistance Junction to Ambient | RθJA | | 75 | | °C/W | Typical | 1 |
| Voltage Tolerance | VBR tol | -5 | | 5 | % | 5% Vbr voltage tolerance (A suffix) | 5 |
## 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 lead-free plated ■ Halogen free and RoHS | 1 |
## CAD (KiCad official)
- Symbol: `TPSMC68A`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: DO-214AB(SMCJ) (KiCad packages3D, STEP)
- 3D model files: `tpsmc68a-etched.step` / `tpsmc68a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpsmc68a.step` / `tpsmc68a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Littelfuse datasheet](docs/tpsmc68a-datasheet.pdf) (5 pp, sha256 `dd1f7a59f449c6bc`, 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/tpsmc68a-datasheet.pdf)