Part No. VDD Operating Current Standby Current ZC Off/On 
for Override
Flash on Mode
 Auto-change
Comparator
 Window
Effective Trigger
Width
Triac
Drive
Relay
Drive
LED Buzzer LVD Package
HT7610A
5V~12V 100μA -- 2 times Flash 1/16 (VDD-VEE) >24ms -- v -- -- -- 16DIP
HT7610B v -- -- -- --
HT7611A
5V~12V 100μA -- 1 time No Flash 1/16 (VDD-VEE) >24ms -- v -- -- -- 16DIP
HT7611B v -- -- -- --
HT7612 3.3V~
5.5V
-- 15μA 2 times Flash Vref x (1/2±1/6) >24ms v v v v v 16DIP, 16NSOP

Note: 1.Part numbers suffixed with an "A" are for Relay applications while those suffixed with a "B" are for Triac applications.
         2.Operating and standby current values are typical values.