# 1.5KE13CA

**Littelfuse** · TVS · DO-201

1.5KE13CA from Littelfuse, in a DO-201. 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 | A1 | passive | Bi-directional TVS terminal (axial lead, no polarity, no cathode band); 1.5KE13CA has VR 11.10 V, VBR 12.40-13.70 V at 1 mA, and max VC 18.2 V at Ipp 83.5 A. |
| 2 | A2 | passive | Bi-directional TVS terminal (axial lead, no polarity, no cathode band); the device is symmetric so either lead may connect to the higher potential, with 1500 W peak pulse power at 10/1000 µs. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DO-201 |
| 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 |  | 11.1 |  | V |  | 2 |
| Breakdown Voltage | VBR | 12.4 |  | 13.7 | V | @ IT = 1 mA | 2 |
| Test Current | IT |  | 1 |  | mA |  | 2 |
| Maximum Clamping Voltage | VC |  |  | 18.2 | V | @ Ipp = 83.5 A | 2 |
| Maximum Peak Pulse Current | Ipp |  |  | 83.5 | A |  | 2 |
| Maximum Reverse Leakage | IR |  |  | 1 | µA | @ VR | 2 |
| Peak Pulse Power Dissipation | PPPM |  |  | 1500 | W | 10/1000μs waveform, single die parts, TA=25°C | 1 |
| Steady State Power Dissipation | PD |  |  | 6.5 | W | Infinite heat sink at TL=75ºC | 1 |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 |  | 175 | °C |  | 1 |
| Thermal Resistance Junction to Lead | RθJL |  | 15 |  | °C/W | Typical | 1 |
| Thermal Resistance Junction to Ambient | RθJA |  | 75 |  | °C/W | Typical | 1 |
| Breakdown Voltage Temperature Coefficient | αT |  | 0.1 |  | % | VBR @ TJ = VBR@25°C x (1+αT x (TJ - 25)), typical value | 1 |
| Breakdown Voltage Tolerance |  | -5 |  | 5 | % | CA type code: bi-directional, 5% VBR tolerance | 6 |

## 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: `1.5KE13CA`
- Footprint: `Diode_THT:D_DO-201AD_P15.24mm_Horizontal`
- 3D model: DO-201 (KiCad packages3D, STEP)

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Littelfuse datasheet](docs/1-5ke13ca-datasheet.pdf) (6 pp, sha256 `4290e23a327d9203`, retrieved 2026-10-31, 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/1-5ke13ca-datasheet.pdf)