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LAA127PL

Public Made by Adom

by adom

Littelfuse IXYS Solid State Relays (MOS Output), SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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LAA127PL

Littelfuse IXYS · Solid State Relays (MOS Output) · SOIC-8

LAA127PL from Littelfuse IXYS, in a SOIC-8. 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 + Control - Switch #1 input Positive input (LED anode) for normally open switch #1; the control current to activate is 5 mA max at IL = 170 mA, and the input control current is limited to 50 mA max.
2 - Control - Switch #1 input Negative input (LED cathode) for normally open switch #1; reverse input voltage is limited to 5 V max.
3 + Control - Switch #2 input Positive input (LED anode) for normally open switch #2; the control current to activate is 5 mA max at IL = 170 mA, and the input control current is limited to 50 mA max.
4 - Control - Switch #2 input Negative input (LED cathode) for normally open switch #2; reverse input voltage is limited to 5 V max.
5 Load - Switch #2 passive Output terminal of the OptoMOS switch #2; blocking voltage is 250 VP max and continuous load current is 170 mArms / mADC max.
6 Load - Switch #2 passive Output terminal of the OptoMOS switch #2; blocking voltage is 250 VP max and continuous load current is 170 mArms / mADC max.
7 Load - Switch #1 passive Output terminal of the OptoMOS switch #1; blocking voltage is 250 VP max and continuous load current is 170 mArms / mADC max.
8 Load - Switch #1 passive Output terminal of the OptoMOS switch #1; blocking voltage is 250 VP max and continuous load current is 170 mArms / mADC max.

Key specifications

Parameter Value
Manufacturer Littelfuse IXYS
Package SOIC-8
Category Optoisolators
Pins 8

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Blocking Voltage VDRM 250 VP IL=1A 2
Load Current, Continuous IL 170 mArms / mADC 2
Load Current Limiting ICL 190 235 280 mA 2
Off-State Leakage Current ILEAK 1 µA VL=250VP 2
Turn-On Time ton 5 ms IF=5mA, VL=10V 2
Turn-Off Time toff 5 ms IF=5mA, VL=10V 2
Input Control Current to Activate IF 5 mA IL=170mA 2
Input Control Current to Deactivate 0.1 0.25 mA 2
Input Voltage Drop VF 0.9 1.36 1.5 V IF=5mA 2
Reverse Input Current IR 10 µA VR=5V 2
On-Resistance RON 13 15 Ω IL=170mA 2
Output Capacitance COUT 110 pF IF=0mA, VL=50V, f=1MHz 2
Input to Output Capacitance CIO 3 pF VIO=0V, f=1MHz 2
Blocking Voltage 250 VP 2
Reverse Input Voltage 5 V 2
Input Control Current 50 mA 2
Input Control Current Peak 1 A Peak (10ms) 2
Input Power Dissipation 150 mW 2
Total Power Dissipation 800 mW 2
Isolation Voltage, Input to Output 3750 Vrms 2
Operational Temperature, Ambient -40 85 °C 2
Storage Temperature -40 125 °C 2

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
housing PC Circuits classifies its plastic encapsulated devices for moisture sensitivity according to the latest version of the joint industry standard, IPC/JEDEC J-STD-020, in force at the time of product evalu 5

CAD (KiCad official)

  • Symbol: LAA127PL
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: laa127pl-etched.step / laa127pl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); laa127pl.step / laa127pl.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse IXYS datasheet (7 pp, sha256 2436d78bab50a1f5, retrieved 2026-10-20, 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