component
FH8812A
Public Made by Adomby adom
鑫飞宏 , SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownFH8812A
鑫飞宏 · IC · SOT-23-3L
FH8812A from 鑫飞宏, in a SOT-23-3L. 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 | G | input | Gate; gate-source voltage limited to ±12 V absolute maximum, with VGS(th) 0.4 V min to 1.0 V max at ID = 250µA. |
| 2 | S | passive | Source; continuous drain-source diode forward current is rated 3 A. |
| 3 | D | passive | Drain; drain-source voltage rated 20 V and continuous drain current 8.2 A (pulsed 33 A). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | 鑫飞宏 |
| Package | SOT-23-3L |
| Category | |
| 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-source voltage | VDS | 20 | V | TA=25℃ unless otherwise noted | 1 | ||
| Gate-source voltage | VGS | -12 | 12 | V | TA=25℃ unless otherwise noted | 1 | |
| Continuous drain current | ID | 8.2 | A | TA=25℃ unless otherwise noted | 1 | ||
| Pulsed drain current | IDM | 33 | A | TA=25℃ unless otherwise noted | 1 | ||
| Drain-source diode forward current | Is | 3 | A | TA=25℃ unless otherwise noted | 1 | ||
| Maximum power dissipation | PD | 1.25 | W | TA=25℃ unless otherwise noted | 1 | ||
| Operating junction temperature range | Tj | -55 | 150 | ℃ | TA=25℃ unless otherwise noted | 1 | |
| Gate-source breakdown / Drain-source breakdown voltage | BVDSS | 20 | V | VGS = 0V, ID = 250µA | 2 | ||
| Gate threshold voltage | VGS(th) | 0.4 | 1 | V | VDS = VGS, ID = 250µA | 2 | |
| Gate-body leakage current | IGSS | -2 | 2 | uA | VDS = 0V, VGS = ±8V | 2 | |
| Gate-body leakage current | IGSS | -10 | 10 | uA | VDS = 0V, VGS = ±12V | 2 | |
| Zero gate voltage drain current | IDSS | 1 | µA | VDS = 18V, VGS = 0V | 2 | ||
| Drain-source on-resistance | RDS(on) | 9.4 | 12 | mΩ | VGS = 4.5V, ID = 5.0A | 2 | |
| Drain-source on-resistance | RDS(on) | 10 | 12.5 | mΩ | VGS = 3.8V, ID = 4.0A | 2 | |
| Drain-source on-resistance | RDS(on) | 11 | 13.5 | mΩ | VGS = 3.1V, ID = 4.0A | 2 | |
| Drain-source on-resistance | RDS(on) | 12 | 15 | mΩ | VGS = 2.5V, ID = 3.0A | 2 | |
| Diode forward current | IS | 3 | A | 2 | |||
| Thermal resistance junction-to-ambient | RthJA | 100 | ℃/W | 1 | |||
| Forward transconductance | gFS | 10 | S | VDS = 5V, ID = 5.0A | 2 | ||
| Total gate charge | Qg | 13 | nC | VDS = 10V, VGS = 4.5V, ID = 3A | 2 | ||
| Gate-source charge | Qgs | 1.5 | nC | VDS = 10V, VGS = 4.5V, ID = 3A | 2 | ||
| Gate-drain charge | Qgd | 17 | nC | VDS = 10V, VGS = 4.5V, ID = 3A | 2 | ||
| Input capacitance | Ciss | 1180 | pF | VDS = 10V, VGS = 0V, f = 1MHz | 2 | ||
| Output capacitance | Coss | 192 | pF | VDS = 10V, VGS = 0V, f = 1MHz | 2 | ||
| Reverse transfer capacitance | Crss | 123 | pF | VDS = 10V, VGS = 0V, f = 1MHz | 2 | ||
| Turn-on delay time | td(on) | 13 | nS | VDS = 10V, RL = 5 Ω, VGS = 4.5V, RGEN = 6Ω, ID = 1A | 2 | ||
| Rise time | tr | 3.3 | nS | VDS = 10V, RL = 5 Ω, VGS = 4.5V, RGEN = 6Ω, ID = 1A | 2 | ||
| Turn-off delay time | td(off) | 29.3 | nS | VDS = 10V, RL = 5 Ω, VGS = 4.5V, RGEN = 6Ω, ID = 1A | 2 | ||
| Fall time | tf | 3.4 | nS | VDS = 10V, RL = 5 Ω, VGS = 4.5V, RGEN = 6Ω, ID = 1A | 2 |
CAD (KiCad official)
- Symbol:
FH8812A - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
fh8812a-etched.step/fh8812a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fh8812a.step/fh8812a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: 鑫飞宏 datasheet (6 pp, sha256
488d5426b59b52ba, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).