component
SE8650X2-HF
Public Made by Adomby adom
Seaward Elec Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownSE8650X2-HF
Seaward Elec · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23
SE8650X2-HF from Seaward Elec, 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 | GND | power_in | Ground pin. |
| 2 | VOUT | power_out | Output pin of the fixed 5.0V regulator (ordering code 50), with a 10µF ceramic output capacitor recommended and 1µF minimum for stability. |
| 3 | VIN | power_in | Input pin, operating from VOUT+1V up to 60V recommended (80V absolute maximum), with a 1µF ceramic capacitor required to GND placed close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Seaward Elec |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Supply Voltage | VIN | 2.8 | 60 | V | 6 | ||
| Output Voltage Accuracy | VOUT | -1 | 1 | % | IOUT=10mA | 6 | |
| Output Voltage Accuracy | VOUT | -2 | 2 | % | IOUT=10mA | 6 | |
| Quiescent Current | IQ | 1.8 | 4 | μA | VIN=6V~60V | 6 | |
| Output Current | IOUT | 200 | mA | 6 | |||
| Dropout Voltage | VDROP | 70 | mV | IOUT=10mA; ΔVOUT= - VOUT *2% | 6 | ||
| Dropout Voltage | VDROP | 700 | mV | IOUT=100mA; ΔVOUT= - VOUT *2% | 6 | ||
| Load Regulation | VLR | 20 | mV | 1mA ≤ IOUT ≤ 100mA | 6 | ||
| Line Regulation | VSR | 0.2 | %/V | IOUT=1mA, VIN=(VOUT +1V) to 60V | 6 | ||
| Power Supply Rejection Ratio | PSRR | 70 | dB | Vin=12V, Iout=10mA, F=1Khz, Vout=3.3V | 6 | ||
| Enable High Level | VENH | 1 | V | Enabled | 6 | ||
| Enable Low Level | VENL | 0.4 | V | Disabled | 6 | ||
| EN Current | IEN | 1 | μA | EN=0~VIN(REN=100K) | 6 | ||
| Current Limit | ILIMIT | 25 | 50 | mA | 6 | ||
| Thermal Protection | TSHDN | 150 | ℃ | 6 | |||
| Output Voltage Temperature Coefficient | TCVOUT | -17 | 17 | ppm/℃ | IOUT=10mA, -40℃≤TAMB≤100℃ | 6 | |
| Input Supply Voltage (absolute maximum) | VIN | 80 | V | 5 | |||
| Enable Voltage (absolute maximum) | EN | 80 | V | 5 | |||
| Output Voltage TO GND (absolute maximum) | VOUT-GND | 6 | V | 5 | |||
| Output Voltage TO VIN (absolute maximum) | Vout | -75 | V | 5 | |||
| Operating Temperature (absolute maximum) | TA | -40 | 105 | °C | 5 | ||
| Storage Temperature | TSTG | -40 | 150 | °C | 5 | ||
| Maximum Junction Temperature | TJ | 150 | °C | 5 | |||
| Lead Temperature (Soldering) | TLEAD | 260 | °C | 10 seconds | 5 | ||
| Electrostatic discharge, Human Body Model | HBM | 4 | kV | Human Body Model (HBM) | 5 | ||
| Electrostatic discharge, Charged Device Model | CDM | 100 | V | Charged Device Model (MM) | 5 | ||
| Input Supply Voltage (recommended) | VIN | 60 | V | 5 | |||
| Operating Temperature (recommended) | TA | -20 | 85 | °C | 5 | ||
| Lead Temperature (Soldering) (recommended) | TLEAD | 260 | °C | 10 seconds | 5 | ||
| Thermal Resistance, Junction-to-Ambient (SOT23-3) | JA | 280 | ℃/W | SOT23-3 package | 5 | ||
| Thermal Resistance, Junction-to-Ambient (SOT23-5) | JA | 270 | ℃/W | SOT23-5 package | 5 | ||
| Power Consumption (SOT23-3) | PD | 446 | mW | SOT23-3 package | 5 | ||
| Power Consumption (SOT23-5) | PD | 465 | mW | SOT23-5 package | 5 |
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 | copper | placed as close as possible to VIN pin, and copper trace is also recommended. | 9 |
CAD (KiCad official)
- Symbol:
SE8650X2-HF - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
se8650x2-hf-etched.step/se8650x2-hf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);se8650x2-hf.step/se8650x2-hf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Seaward Elec datasheet (13 pp, sha256
bbcc4b51e1159018, retrieved 2026-10-18, 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).