? 2015 solid state optronics ? san jos, ca www.ssousa.com ? +1.408.293.4600 s642-x /h/s/tr rev 2.00 (02/27/2015) 002411 page 1 of 7 s642- x zero cross 400v / 1.2 a ac solid state relay description the s642-x is a bi-directional, single-pole, single-throw, normally open multipurpose solid-state relay. the circuit is composed of one input ir led with a series limiting resistor which activates an optically coupled ic on the output that controls the firin g angle of two back-to-back scrs. this circuit assures no false triggering under most adverse conditions, and a tight zero-volt switching window not exceeding 5v. the s642-x provides high peak load voltage (400v+) and high input -to-output isolation voltage (up to 5kv rms ). the s642-x comes in a compact 16 pin dip package, mak ing it ideal for high - density board applications. schematic diagram agency approvals ul/c-ul: file # e90096 vde: file # 40035191 (en 60747-5-2) applications ? valve control ? solenoid control ? home appliances ? metering equipment ? heating elements ? gas pump control circuitry absolute maximum ratings the values indicated are absolute stress ratings. functional operation of the device is not implied at these or any conditions in excess of those defined in electrical characteristics section of this document. exposure to absolute maximum ratings may cause permanent damage to the device and may adver sely affect reliability. storage temperatur e ..-55 to +125c operating temperature -40 to +85c continuous input current ..50ma transient input current ...500ma reverse input control voltage ..5v input power dissipation ..40mw total power dissipat ion ...1.2w solder temperature C wave (10sec)..260c solder temperature C ir reflow (10sec)...260c ordering information part number description s642-x 16 pin dip, (25/tube) s642-xh 5kv rms v iso , 16 pin dip, (25/tube) s642-xs 16 pin smd, (25/tube) s642-xhs 5kv rms v iso , 16 pin smd, (25/tube) features ? zero-volt cross switching ? input series limiting resistor (300? typ) ? high blocking voltage (400v min) ? high transient immunity ? 1.2a maximum continuous current ? low input control current ? long life / high reliability ? ?????? note: suffixes listed above are not included in marking on device for part number identification s642-x 16 1 10 8 (+) input (-) input zero cross (+/-) load (-/+) load r in
? 2015 solid state optronics ? san jos, ca www.ssousa.com ? +1.408.293.4600 page 2 of 7 s642-x /h/s/tr rev 2.00 (02/27/2015) 002411 s642- x zero cross 400v / 1.2 a ac solid state relay parameter symbol min. typ. max. units test conditions input specifications led forward voltage v f - 1.2 1.5 v i f = 10ma led reverse voltage bv r 5 - - v i r = 10a input resistor r in - 300 - ? trigger (must operate) current 1 i f - 3 5 ma ? i o = i o(max) [resistive load] junction capacitance c j - 5 - pf i f =0ma output specifications blocking voltage v b 400 - - v i f = 0ma, i o = 1 ? a continuous load current i o(max) - - 1.2 a i f = 5ma surge current i (surge) - - 10 a t 16ms holding current i hold - - 10 ma ? i f = 5ma on voltage v on - - 1.2 v i f = 5mav, i o = 1.2a voltage across load at turn on - - - 5 v i f = 5ma leakage current i oleak - 100 250 ? a ? i f = 0ma, v o = 250v thermal resistance - - 80 - c/w power factor 2 - - 0.3 - - critical rate of rise (dv/dt) 3 dv/dt 400 - - v/ ? s ? coupled specifications turn-on time t on - - 0.5 cycles ? i f = 5ma turn-off time t off - - 0.5 cycles ? i f = 5ma coupled capacitance c coupled - 2 - pf contact transient ratio - 2,000 7,000 0 v/ ? s dv = 50v isolation specifications isolation voltage v iso 3750 - - v rms rh 50%, t=1min (-h option) 5000 - - input-output resistance r i-o - 10 12 - ?? v i-o = 500v dc notes : 1) resistive load. for inductive loads, higher drive current i s recommended 2) snubber circuits may be required for lower power factors 3) this is for static dv/dt. electrical characteristics, t a = 25c (unless otherwise specified)
? 2015 solid state optronics ? san jos, ca www.ssousa.com ? +1.408.293.4600 page 3 of 7 s642-x /h/s/tr rev 2.00 (02/27/2015) 002411 s642- x zero cross 400v / 1.2 a ac solid state relay s642-x performance & characteristics plots, t a = 25c (unless otherwise specified) zero-volt switching this solid state relay has been designed with a driver circuit that controls the operation of two back-to-back silicon control led rectifiers (scrs), each responsible for one half of the ac cycle. if an a c signal is examined, the turn on, turn off and zero-volt switc hing can be seen. figure 3 shows a typical 60 hz, 120vac signal with a cor responding relay input signal: figure 3 shows the sequence of zero-volt switching operation. at stage 1, an input signal is applied to the relay. the relay will not turn on until the threshold voltage of 5v is reached. once this poi nt is reached (stage 2), scr #1 (designated as the scr which co ntrols positive ac voltage) turns on. h owever, scr #1 only conducts f or an instant, as the cycle quickly crosses zero. at this poin t (stage 3), scr #1 will turn off and scr #2 (negative ac voltage) turns on. likewise, at the next zero cross (stage 4), scr #2 will turn off and scr #1 conducts again. even though the input signal is termina ted at stage 5, the relay will continue to conduct (typical scr behavior) until stage 6, when scr #1 crosses zero and ceases to conduct. please note that turn on can likewise begin on the n egative phase of the ac cycle with a -5v threshold, though only the pos itive phase is shown here. figure 3: zero-volt switching cycle 5v threshold (zero cross voltage) input signal scr #1 turns on when 5v threshold is reached scr #1 turns off, scr #2 turns on at zero volts scr #2 turns off, scr #1 turns on at zero volts scr #1 and relay turn off at zero volts 5 4 2 6 3 1 relay input signal is turned on relay input signal is turned off load signal 0 400 800 1200 1600 -40-20 0 20406080100 load current (ma) temperature (oc) figure 2: maximum load current vs. temperature i f =5ma 0 10 20 30 40 50 60 550 555 560 565 570 575 580 585 device count blocking voltage (v b ) figure 1: typical blocking voltage distribution (n = 100, ta = 25oc)
? 2015 solid state optronics ? san jos, ca www.ssousa.com ? +1.408.293.4600 page 4 of 7 s642-x /h/s/tr rev 2.00 (02/27/2015) 002411 s642- x zero cross 400v / 1.2 a ac solid state relay process step description parameter a preheat start temperature (oc) 150oc b preheat finish temperature (oc) 180oc c preheat time (s) 90 - 120s d melting temperat ure (oc) 230oc e time above melting te mperature (s) 30s f peak temperature, at terminal (oc) 260oc g dwell time at peak temperature (s) 10s h cool-down (oc/s) <6oc/s s642-x solder reflow temperat ure profile recommendations (1) infrared reflow: refer to the following figure as an example of an optimal tempe rature profile for single occurrence infrared reflow. soldering process should not exceed temperature or time limits expressed herein. surface temperature of device package should not exceed 250oc: a b c d f e g h (2) wave solder: (3) hand solder: maximum temperature: 260oc (at terminal) maximum time: 10s pre-heating: 100 - 150oc (30 - 90s) single occurrence maximum temperature: 350oc (at tip of soldering iron) maximum time: 3s single occurrence
? 2015 solid state optronics ? san jos, ca www.ssousa.com ? +1.408.293.4600 page 5 of 7 s642-x /h/s/tr rev 2.00 (02/27/2015) 002411 s642- x zero cross 400v / 1.2 a ac solid state relay s642-x package dimensions 16 pin dip package note: all dimensions in inches [?] with millimeters in parenthesis ()
? 2015 solid state optronics ? san jos, ca www.ssousa.com ? +1.408.293.4600 page 6 of 7 s642-x /h/s/tr rev 2.00 (02/27/2015) 002411 s642- x zero cross 400v / 1.2 a ac solid state relay s642-x package dimensions 16 pin smd package (-s) note: all dimensions in inches [?] with millimeters in parenthesis ()
? 2015 solid state optronics ? san jos, ca www.ssousa.com ? +1.408.293.4600 page 7 of 7 s642-x /h/s/tr rev 2.00 (02/27/2015) 002411 s642- x zero cross 400v / 1.2 a ac solid state relay note: all weights above are in grams, and include packaging materials where applicable device single unit full tube (25pcs) full pouch (10 tubes) s642-x(h) 0.88 35 370 s642-x(h)s 0.88 35 370 solid state optronics (sso) makes no warranties or representations with regards to the completeness and accuracy of this docume nt. sso reserves the right to make changes to product description, specifications at any time without further notices. sso shall not assume any liability arising out of the application or use of any product or circui t described herein. neither c ircuit patent licenses nor indemnity are expressed or implied. except as specified in sso?s standard te rms & conditions, sso disclaims liability fo r consequential or other damage, and we mak e no other warranty, expressed or implied, including merchantability and fitness for particular use. disclaimer sso does not authorize use of its devices in life support applicat ions wherein failure or malfunc tion of a device may lead to p ersonal injury or death. users of sso devices in life support applications assume all risks of such use and agree to indemnify sso against any a nd all damages resulting from such use. life s upport devices are defined as devices or syst ems which, (a) are intended for surgical i mplant into the body, or (b) support or sustain life, and (c) whose failure to per form when used properly in accordance with instructions for u se can be reasonably expected to result in significant injury to the user, or (d) a critical component of a life support device or system whose failure can be reasonably expected to cause failure of the life support devic e or system, or to affect its safety or effectiveness. life support policy s642-x package marking s642-x package weights s642-x yyww
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