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SE8650K2B-HF

Public Made by Adom

by adom

Seaward Elec Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SE8650K2B-HF

Seaward Elec · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT89-3

SE8650K2B-HF from Seaward Elec, in a SOT89-3. 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 VOUT power_out Regulated output pin for the fixed 5.0V output (50 code), with a recommended 10uF ceramic output capacitor placed close to the pin and output current of at least 200mA.
2 GND power_in Ground pin, which is also connected to the SOT89 tab shown as GND in the conductive-glue pin drawing.
3 VIN power_in Input supply pin, rated 80V absolute maximum with a 60V maximum recommended operating input, and a 1uF ceramic input capacitor placed close to the pin.

Key specifications

Parameter Value
Manufacturer Seaward Elec
Package SOT89-3
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
Current Limit ILIMIT 25 50 mA 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
Output Voltage Temperature Coefficient TCVOUT -17 17 ppm/℃ IOUT=10mA, -40℃≤TAMB≤100℃ 6
Input Supply Voltage VIN 80 V 5
Enable Voltage EN 80 V 5
Output Voltage TO GND VOUT 6 V 5
Output Voltage TO VIN VOUT-VIN -75 V 5
Operating Temperature 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 rating, Human Body Model (HBM) 4 kV Human Body Model (HBM) 5
Electrostatic discharge rating, Charged Device Model (MM) 100 V Charged Device Model (MM) 5
Input Supply Voltage VIN 60 V 5
Operating Temperature TA -20 85 °C 5
Lead Temperature (Soldering) TLEAD 260 °C 10 seconds 5
Thermal Resistance, Junction-to-Ambient (SOT89) JA 165 ℃/W SOT89 5
Power Consumption (SOT89) PD 750 mW SOT89 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: SE8650K2B-HF
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT89-3 (KiCad packages3D, STEP)
  • 3D model files: se8650k2b-hf-etched.step / se8650k2b-hf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); se8650k2b-hf.step / se8650k2b-hf.glb are the bare package body.

Provenance

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

  • Datasheet: Seaward Elec datasheet (13 pp, sha256 bbcc4b51e1159018, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF