Register once, drag and drop ECAD models into your CAD tool and speed up your design.

Click here for more information


Low-ohmic single-pole double-throw analog switch

The XS3A1T3157 is a low-ohmic single-pole double-throw analog switch suitable for use as an analog or digital 2:1 multiplexer/demultiplexer. It has a digital select input (S), two independent inputs/outputs (Y1 and Y2) and a common input/output (Z).

Schmitt trigger action at the digital input makes the circuit tolerant to slower input rise and fall times. Low threshold digital input allows this device to be driven by 1.8 V logic levels in 3.3 V applications without significant increase in supply current ICC. This makes it possible for the XS3A1T3157 to switch 4.3 V signals with a 1.8 V digital controller, eliminating the need for logic level translation. The XS3A1T3157 allows signals with amplitude up to VCC to be transmitted from Z to Y1 or Y2, or from Y1 or Y2 to Z. It'slowONresistance (0.5 Ω) and flatness (0.13 Ω) ensures minimal attenuation and distortion of transmitted signals.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
XS3A1T3157GM XS3A1T3157GMX 935690968115 SOT886 Order product

Features and benefits

  • Wide supply voltage range from 1.4 V to 4.3 V
  • Very low ON resistance (peak):
    • 1.6 Ω (typical) at VCC = 1.4 V
    • 1.0 Ω (typical) at VCC = 1.65 V
    • 0.55 Ω (typical) at VCC = 2.3 V
    • 0.50 Ω (typical) at VCC = 2.7 V
    • 0.50 Ω (typical) at VCC = 4.3 V
  • Break-before-make switching
  • High noise immunity
  • ESD protection:
    • HBM ANSI/ESDA/JEDEC JS-001 exceeds 8000 V
    • CDM ANSI/ESDA/JEDEC JS-002 exceeds 1000 V
    • IEC61000-4-2 contact discharge exceeds 8000 V for switch ports
  • CMOS low-power consumption
  • Latch-up performance exceeds 100 mA per JESD78 Class II Level A
  • Low-switching threshold levels
  • Control input accepts voltages above supply voltage
  • Very low supply current, even when input is below VCC
  • High current handling capability (350 mA continuous current under 3.3 V supply)
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C


  • Mobile phone
  • Tablet / Notebook
  • Wearables


Type numberProduct statusConfigurationVCC (V)Logic switching levelsRON (Ω)RON(FLAT) (Ω)f(-3dB) (MHz)THD (%)Xtalk (dB)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Rth(j-c) (K/W)Package name
XS3A1T3157GMProductionSPDT1.4 - 4.3CMOS/LVTTL0.50.2400.03-90ultra low-40~125247119XSON6


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9356 909 68115 )
SOT886Reel 7” Q1/T1 or Q2/T3

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
Quality and reliability disclaimer

Documentation (2)

File nameTitleTypeDate
XS3A1T3157Low-ohmic single-pole double-throw analog switchData sheet2020-03-17
xs3a1t3157XS3A1T3157 IBIS modelIBIS model2020-09-11


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
xs3a1t3157XS3A1T3157 IBIS modelIBIS model2020-09-11

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
XS3A1T3157GMXS3A1T3157GMX935690968115Reel 7” Q1/T1 or Q2/T3Order product


As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.