# ESJ2302

**ElecSuper** · MOSFETs · SOT-23

ESJ2302 from ElecSuper, in a SOT-23. 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 | Gate | input | Gate of the N-channel MOSFET; gate-source voltage limited to ±12 V absolute maximum, with threshold of 0.4 to 1.0 V and ESD protection. |
| 2 | Source | passive | Source of the N-channel MOSFET; continuous drain current is 3.3 A at TA=25℃. |
| 3 | Drain | passive | Drain of the N-channel MOSFET; drain-source breakdown voltage is 20 V minimum, with RDS(on) of 45 mΩ typ at VGS=4.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ElecSuper |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-to-Source Breakdown Voltage | BVDSS | 20 |  |  | V | VGS=0V, ID=250uA | 3 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | uA | VDS=20V, VGS=0V | 3 |
| Gate-to-source Leakage Current | IGSS | -100 |  | 100 | nA | VDS=0V, VGS=±12V | 3 |
| Gate Threshold Voltage | VGS(TH) | 0.4 | 0.7 | 1 | V | VGS=VDS, ID=250uA | 3 |
| Drain-to-source On-resistance | RDS(on) |  | 45 | 55 | mΩ | VGS=4.5V, ID=3A | 3 |
| Drain-to-source On-resistance | RDS(on) |  | 62 | 85 | mΩ | VGS=2.5V, ID=2A | 3 |
| Body Diode Forward Voltage | VSD |  |  | 1.5 | V | VGS=0V, IS=3A | 3 |
| Drain-Source Voltage | BVDSS |  |  | 20 | V | TA=25℃ | 2 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V | TA=25℃ | 2 |
| Continuous Drain Current | ID |  |  | 3.3 | A | TA=25℃ | 2 |
| Continuous Drain Current | ID |  |  | 2.1 | A | TA=100℃ | 2 |
| Maximum Power Dissipation | PD |  |  | 0.9 | mW | TA=25℃ | 2 |
| Pulsed Drain Current | IDM |  |  | 13.2 | A | TA=25℃ | 2 |
| Operating Junction Temperature | TJ |  |  | 150 | °C |  | 2 |
| Lead Temperature | TL |  |  | 260 | °C |  | 2 |
| Storage Temperature Range | Tstg | -55 |  | 150 | °C |  | 2 |
| Junction-to-Ambient Thermal Resistance | RθJA |  | 138 |  | °C/W | Single Operation | 2 |
| Input Capacitance | CISS |  | 200 |  | pF | VGS=0V, f=1MHz, VDS=10V | 3 |
| Output Capacitance | COSS |  | 35 |  | pF | VGS=0V, f=1MHz, VDS=10V | 3 |
| Reverse Transfer Capacitance | CRSS |  | 28 |  | pF | VGS=0V, f=1MHz, VDS=10V | 3 |
| Total Gate Charge | QG(TOT) |  | 3 |  | nC | VGS=4.5V, VDS=10V, ID=2A | 3 |
| Gate-to-Source Charge | QGS |  | 0.5 |  | nC | VGS=4.5V, VDS=10V, ID=2A | 3 |
| Gate-to-Drain Charge | QGD |  | 0.7 |  | nC | VGS=4.5V, VDS=10V, ID=2A | 3 |
| Turn-On Delay Time | td(ON) |  | 3 |  | ns | VGS=4.5V, VDS=10V, ID=2A, RG=3Ω | 3 |
| Rise Time | tr |  | 11 |  | ns | VGS=4.5V, VDS=10V, ID=2A, RG=3Ω | 3 |
| Turn-Off Delay Time | td(OFF) |  | 20 |  | ns | VGS=4.5V, VDS=10V, ID=2A, RG=3Ω | 3 |
| Fall Time | tf |  | 8 |  | ns | VGS=4.5V, VDS=10V, ID=2A, RG=3Ω | 3 |

## CAD (KiCad official)

- Symbol: `ESJ2302`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `esj2302-etched.step` / `esj2302-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esj2302.step` / `esj2302.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ElecSuper datasheet](docs/esj2302-datasheet.pdf) (7 pp, sha256 `e33f8c1cedaba3fe`, 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/esj2302-datasheet.pdf)