74AHC1G66-Q100; 74AHCT1G66-Q100

Single-pole single-throw analog switch

The 74AHC1G66-Q100; 74AHCT1G66-Q100 is a single-pole, single-throw analog switch with two input/output terminals (nY and nZ) and a digital enable input (nE). When nE is LOW, the analog switch is turned off. The enable input is overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features and benefits

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)
    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
  • Very low ON resistance:
    • 26 Ω (typ.) at VCC = 3.0 V
    • 16 Ω (typ.) at VCC = 4.5 V
    • 14 Ω (typ.) at VCC = 5.5 V
  • Wide supply voltage range from 2.0 to 5.5 V
  • Overvoltage tolerant control input to 5.5 V
  • High noise immunity
  • CMOS low power dissipation
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
  • SOT353-1 and SOT753 package options
  • ESD protection:
    • MIL-STD-883, method 3015 exceeds 2000 V
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)


Type numberProduct statusConfigurationVCC (V)RON (Ω)Logic switching levelsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AHC1G66GV-Q100ProductionSPST-NO2.0 - 5.540CMOSvery low-40~12523843.6144TSOP5
74AHC1G66GW-Q100ProductionSPST-NO2.0 - 5.540CMOSvery low-40~12531282.5183TSSOP5
74AHCT1G66GV-Q100ProductionSPST-NO4.5 - 5.540TTLvery low-40~12527264.5170TSOP5
74AHCT1G66GW-Q100ProductionSPST-NO4.5 - 5.540TTLvery low-40~12531282.5183TSSOP5


Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SOT753Reel 7" Q3/T4, ReverseActiveA6674AHC1G66GV-Q100H
( 9353 058 57125 )
Reel 7" Q3/T4, ReverseActiveAL74AHC1G66GW-Q100H
( 9353 058 56125 )
SOT753Reel 7" Q3/T4, ReverseActiveC6674AHCT1G66GV-Q100H
( 9353 062 52125 )
Reel 7" Q3/T4, ReverseActiveCL74AHCT1G66GW-Q100H
( 9353 062 53125 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments

    Quality, reliability & chemical content

    Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
    74AHC1G66GV-Q10074AHC1G66GV-Q100H74AHC1G66GV-Q100Always Pb-free29.90.91.11E911
    74AHC1G66GW-Q10074AHC1G66GW-Q100H74AHC1G66GW-Q100Always Pb-free29.90.91.11E911
    74AHCT1G66GV-Q10074AHCT1G66GV-Q100H74AHCT1G66GV-Q100Always Pb-free29.90.91.11E911
    74AHCT1G66GW-Q10074AHCT1G66GW-Q100H74AHCT1G66GW-Q100Always Pb-free29.90.91.11E911
    Quality and reliability disclaimer

    Documentation (8)

    File nameTitleTypeDate
    74AHC_AHCT1G66_Q100Single-pole single-throw analog switchData sheet2022-01-11
    AN10161PicoGate Logic footprintsApplication note2002-10-29
    ahc1g66_50ahc1g66_50 IBIS modelIBIS model2013-04-07
    ahc1g66_33ahc1g66_33 IBIS modelIBIS model2013-04-07
    WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
    SOT353-1plastic thin shrink small outline package; 5 leads; body width 1.25 mmPackage information2022-01-06
    SOT753plastic, surface-mounted package; 5 leads; 0.95 mm pitch; 2.9 mm x 1.5 mm x 1 mm bodyPackage information2020-04-21
    MAR_SOT753MAR_SOT753 TopmarkTop marking2013-06-03


    If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.


    File nameTitleTypeDate
    ahc1g66_50ahc1g66_50 IBIS modelIBIS model2013-04-07
    ahc1g66_33ahc1g66_33 IBIS modelIBIS model2013-04-07


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