S4A - S4M Taiwan Semiconductor 4A, 50V - 1000V Su.
HTS4A80H - 3 Quadrants Standard TRIAC
GBS4A - Silicon Bridge Rectifiers
HZS4A3 - SILICON EPITAXIAL PLANER ZENER DIODES
HZS4A2 - SILICON EPITAXIAL PLANER ZENER DIODES
HZS4A1 - SILICON EPITAXIAL PLANER ZENER DIODES
HTS4A80A - TRIAC
HTS4A80AS - TRIAC
ADS4A60DT - SCRs
SAM4S4A - SMART ARM-based Flash MCU
BA-9S4AD - LED LIGHT BAR & BAR GRAPH ARRAYS
ADS4A60BT - SCRs
ADS4A60ET - SCRs
IDTQS4A205 - HIGH-PERFORMANCE CMOS ANALOG FOUR-CHANNEL SPDT MUX/DEMUX
IDTQS4A201 - HIGH-PERFORMANCE CMOS TWO-BY-TWO ANALOG CROSS POINT SWITCH
STC8A8K64S4A12 - Micro-controllers
IDTQS4A101 - QUICKSWITCH PRODUCTS HIGH-PERFORMANCE CMOS ANALOG FOUR-CHANNEL SPST SWITCH
IDTQS4A110 - QUICKSWITCH PRODUCTS HIGH-PERFORMANCE CMOS TWO CHANNEL 5PST SWITCH
IDTQS4A210 - QUICKSWITCH PRODUCTS HIGH-PERFORMANCE CMOS TWO CHANNEL SP4T MUX/DEMUX
IDTQS4A215 - QUICKSWITCH PRODUCTS HIGH-PERFORMANCE CMOS SIX CHANNEL SP4T MUX/DEMUX
SAM3S4A - SMART ARM-based Flash MCU