# LM9061MX

**Texas Instruments** · Surge Protection Devices (SPDs) · SOIC-8

LM9061MX from Texas Instruments, in a SOIC-8. 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 | Sense | input | The inverting input to the protection comparator, connected to the external MOSFET source pin and the load. |
| 2 | Threshold | input | The noninverting input to the protection comparator, and a current sink for the threshold resistor to set the allowed voltage drop across the external MOSFET. |
| 3 | Ground | power_in | Ground |
| 4 | Output | output | The gate drive connection. Charges, and discharges, the MOSFET gate. |
| 5 | VCC | power_in | The voltage supply pin. The VCC operating range has a minimum value of 7 V, and a maximum value of 26 V. |
| 6 | IREF | output | A resistor on this pin to ground sets the current through the threshold resistor, which sets the allowed voltage drop across the external MOSFET. |
| 7 | On/Off | input | The control pin. A low voltage, VIN(0), will disable device operation, while a high voltage, VIN(1), will enable device operation. |
| 8 | Delay | output | A capacitor on this pin to ground will provide a delay time between when the protection comparator detects excessive VGS across the MOSFET and when the gate drive circuitry is latched-OFF. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Circuit Protection |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM9061MX`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `lm9061mx-etched.step` / `lm9061mx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm9061mx.step` / `lm9061mx.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm9061) (35 pp, sha256 `b5f962ad5b28a0a6`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/lm9061mx-datasheet.pdf)