# NTR4502PT1G

**onsemi** · MOSFETs · SOT-23

NTR4502PT1G from onsemi, 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 P-channel MOSFET, with gate-to-source voltage rated at ±20 V (VGS). |
| 2 | Source | passive | Source of the P-channel MOSFET, with source current (body diode) rated at −1.25 A (IS). |
| 3 | Drain | passive | Drain of the P-channel MOSFET, with drain-to-source voltage rated at −30 V (VDSS) and continuous drain current of −1.13 A at TA = 25°C steady state (ID), or −1.95 A for t < 10 s. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| 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 Voltage | VDSS |  |  | -30 | V |  | 1 |
| Gate-to-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Drain Current (continuous, Note 1) | ID |  |  | -1.95 | A | t < 10 s, TA = 25°C | 1 |
| Drain Current (Note 1) | ID |  |  | -1.56 | A | t < 10 s, TA = 70°C | 1 |
| Power Dissipation (Note 1) | PD |  |  | 1.25 | W | t < 10 s | 1 |
| Continuous Drain Current (Note 1) | ID |  |  | -1.13 | A | Steady State, TA = 25°C | 1 |
| Continuous Drain Current (Note 1) | ID |  |  | -0.9 | A | Steady State, TA = 70°C | 1 |
| Power Dissipation (Note 1) | PD |  |  | 0.4 | W | Steady State | 1 |
| Pulsed Drain Current | IDM |  |  | -6.8 | A | tp = 10 s | 1 |
| Operating Junction and Storage Temperature | TJ, TSTG | -55 |  | 150 | °C |  | 1 |
| Source Current (Body Diode) | IS |  |  | -1.25 | A |  | 1 |
| Lead Temperature for Soldering Purposes | TL |  |  | 260 | °C | 1/8 in from case for 10 s | 1 |
| Junction-to-Ambient Thermal Resistance | RJA |  |  | 300 | °C/W | Steady State (Note 1) | 1 |
| Junction-to-Ambient Thermal Resistance | RJA |  |  | 100 | °C/W | t = 10 s (Note 1) | 1 |
| Drain-to-Source Breakdown Voltage | V(BR)DSS | -30 |  |  | V | VGS = 0 V, ID = −250 A | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | -1 | A | VGS = 0 V, VDS = −30 V, TJ = 25°C | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | -10 | A | VGS = 0 V, VDS = −30 V, TJ = 55°C | 2 |
| Gate-to-Source Leakage Current | IGSS | -100 |  | 100 | nA | VDS = 0 V, VGS = ±20 V | 2 |
| Gate Threshold Voltage | VGS(TH) | -1 |  | -3 | V | VGS = VDS, ID = −250 A | 2 |
| Drain-to-Source On Resistance | RDS(on) |  | 155 | 200 | m | VGS = −10 V, ID = −1.95 A | 2 |
| Drain-to-Source On Resistance | RDS(on) |  | 240 | 350 | m | VGS = −4.5 V, ID = −1.5 A | 2 |
| Total Gate Charge | QG(TOT) |  | 6 | 10 | nC | VGS = −10 V, VDS = −15 V; ID = −1.95 A | 2 |
| Turn-On Delay Time | td(ON) |  | 5.2 | 10 | ns | VGS = −10 V, VDD = −15 V, ID = −1.95 A, RG = 6 | 2 |
| Rise Time | tr |  | 12 | 20 | ns | VGS = −10 V, VDD = −15 V, ID = −1.95 A, RG = 6 | 2 |
| Turn-Off Delay Time | td(OFF) |  | 19 | 35 | ns | VGS = −10 V, VDD = −15 V, ID = −1.95 A, RG = 6 | 2 |
| Fall Time | tf |  | 17.5 | 30 | ns | VGS = −10 V, VDD = −15 V, ID = −1.95 A, RG = 6 | 2 |
| Forward Diode Voltage | VSD |  | -0.8 | -1.2 | V | VGS = 0 V, IS = −1.25 A | 2 |

## CAD (KiCad official)

- Symbol: `NTR4502PT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `ntr4502pt1g-etched.step` / `ntr4502pt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ntr4502pt1g.step` / `ntr4502pt1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586171875374743552) (5 pp, sha256 `9def1c3c9b65b6c2`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/ntr4502pt1g-datasheet.pdf)