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1-5smc540ca
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Littelfuse TVS, DO-214AB(SMCJ). Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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1.5SMC540CA
Littelfuse · TVS · DO-214AB(SMCJ)
1.5SMC540CA 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 | Terminal 1 | passive | Bi-directional TVS terminal with no polarity (no cathode band on CA parts); 460 V stand-off (VR), 513-567 V breakdown at 1 mA, 740 V max clamping at 2.8 A Ipp. |
| 2 | Terminal 2 | passive | Second bi-directional TVS terminal, interchangeable with terminal 1; stacked-die part rated 2000 W peak pulse power at 10/1000 µs. |
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 | 460 | V | 2 | |||
| Breakdown Voltage | VBR | 513 | 567 | V | @ IT = 1 mA | 2 | |
| Maximum Clamping Voltage | VC | 740 | V | @ Ipp = 2.8 A | 2 | ||
| Maximum Peak Pulse Current | Ipp | 2.8 | A | 2 | |||
| Maximum Reverse Leakage | IR | 1 | µA | @ VR | 2 | ||
| Peak Pulse Power Dissipation (stacked die) | PPPM | 2000 | W | 10/1000us waveform, TA=25°C, stacked die parts | 1 | ||
| Power Dissipation on Infinite Heat Sink | PD | 6.5 | W | TL=50°C | 1 | ||
| Operating Temperature Range | TJ | -65 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -65 | 175 | °C | 1 | ||
| Thermal Resistance Junction to Lead | RƟJL | 15 | °C/W | Typical | 1 | ||
| Thermal Resistance Junction to Ambient | RƟJA | 75 | °C/W | Typical | 1 | ||
| Breakdown Voltage Temperature Coefficient | αT | 0.1 | % | typical value, VBR@TJ = VBR@25°C x (1+αT x (TJ-25)) | 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 lead-free plated • Halogen free and RoHS | 1 |
CAD (KiCad official)
- Symbol:
1.5SMC540CA - Footprint:
Diode_SMD:D_SMC - 3D model: DO-214AB(SMCJ) (KiCad packages3D, STEP)
- 3D model files:
1-5smc540ca-etched.step/1-5smc540ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1-5smc540ca.step/1-5smc540ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (6 pp, sha256
d65ddb10854080bb, retrieved 2026-10-22, 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).
# 1.5SMC540CA
**Littelfuse** · TVS · DO-214AB(SMCJ)
1.5SMC540CA 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 | Terminal 1 | passive | Bi-directional TVS terminal with no polarity (no cathode band on CA parts); 460 V stand-off (VR), 513-567 V breakdown at 1 mA, 740 V max clamping at 2.8 A Ipp. |
| 2 | Terminal 2 | passive | Second bi-directional TVS terminal, interchangeable with terminal 1; stacked-die part rated 2000 W peak pulse power at 10/1000 µs. |
## 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 | | 460 | | V | | 2 |
| Breakdown Voltage | VBR | 513 | | 567 | V | @ IT = 1 mA | 2 |
| Maximum Clamping Voltage | VC | | | 740 | V | @ Ipp = 2.8 A | 2 |
| Maximum Peak Pulse Current | Ipp | | | 2.8 | A | | 2 |
| Maximum Reverse Leakage | IR | | | 1 | µA | @ VR | 2 |
| Peak Pulse Power Dissipation (stacked die) | PPPM | | | 2000 | W | 10/1000us waveform, TA=25°C, stacked die parts | 1 |
| Power Dissipation on Infinite Heat Sink | PD | | | 6.5 | W | TL=50°C | 1 |
| Operating Temperature Range | TJ | -65 | | 150 | °C | | 1 |
| Storage Temperature Range | TSTG | -65 | | 175 | °C | | 1 |
| Thermal Resistance Junction to Lead | RƟJL | | 15 | | °C/W | Typical | 1 |
| Thermal Resistance Junction to Ambient | RƟJA | | 75 | | °C/W | Typical | 1 |
| Breakdown Voltage Temperature Coefficient | αT | | 0.1 | | % | typical value, VBR@TJ = VBR@25°C x (1+αT x (TJ-25)) | 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 lead-free plated • Halogen free and RoHS | 1 |
## CAD (KiCad official)
- Symbol: `1.5SMC540CA`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: DO-214AB(SMCJ) (KiCad packages3D, STEP)
- 3D model files: `1-5smc540ca-etched.step` / `1-5smc540ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1-5smc540ca.step` / `1-5smc540ca.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Littelfuse datasheet](docs/1-5smc540ca-datasheet.pdf) (6 pp, sha256 `d65ddb10854080bb`, retrieved 2026-10-22, 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/1-5smc540ca-datasheet.pdf)