SQ-ASX SERIES ON/OFF SHOCK AND ACCELERATION SENSOR FUNCTIONAL DIAGRAMS INPUT SQ-ASA series Axially sensitive, singled ended, normally closed On / off shock & acceleration sensing SQ-ASB series Omnidirectional, normally closed Damage detection for medical products Munitions Security, anti-tamper, anti-theft, alarms DESCRIPTION The SQ-ASx series sensors act like acceleration sensitive switches that open or close when accelerated past an acceleration threshold. The sensor can be used to produces CMOS or TTL pulses to interrupt (wake up) a microcontroller. The sensor is fully passive, requires no signal conditioning, and operates with zero current or only 50 nA depending on model. SQ-ASC series Axially sensitive, single ended, normally open SQ-ASD series Omnidirectional, normally open Patented. United States: 8367952, China: 101960316. Patents pending. Miniature Size - 3.3 mm x 6.9 mm Simple Interface No signal conditioning required Made in USA - fully automated production, 100% testing Fast Response - < 100 uS Multiple Sensitivities - 10 G to 1400 G standard Zero-power - or nanopower Industrial Rated - 10 year life, -40º to 85º C SQ-ASE series Radially sensitive, normally open * See Functional Behavior for more details 10 Water St. Lebanon, NH 03766 USA Page 1 of 8 www.signalquest.com [email protected]

SQ-ASX SERIES ON/OFF SHOCK AND ACCELERATION SENSOR 10 Water St. Lebanon, NH 03766 USA Page 2 of 8 www.signalquest.com [email protected]

SQ-ASX SERIES ON/OFF SHOCK AND ACCELERATION SENSOR CHARACTERISTICS PARAMETER Shock Survival Storage Temperature Supply Voltage Range Current Sink* CONDITIONS 5x, 0.1 ms half-sin, any axis * Current consumption is determined by the resistance of the application circuit and the supply voltage. DIMENSIONS FOR ASA & ASC PHYSICAL SIZE SYMBOL Terminal Width 10 Water St. Lebanon, NH 03766 USA Page 3 of 8 www.signalquest.com [email protected]

SQ-ASX SERIES ON/OFF SHOCK AND ACCELERATION SENSOR DIMENSIONS ASB, ASD, & ASE PHYSICAL SIZE SYMBOL Terminal Width 10 Water St. Lebanon, NH 03766 USA Page 4 of 8 www.signalquest.com [email protected]

SQ-ASX SERIES ON/OFF SHOCK AND ACCELERATION SENSOR EXAMPLE PCB LANDING RECOMMENDED PCB LANDING ALTERNATE, PCB CUTOUT LANDING (USE FOR LOWEST PROFILE) Recess Length Recess Width *Note: Alternative layouts may be used to optimize size or manufacturability 10 Water St. Lebanon, NH 03766 USA Page 5 of 8 www.signalquest.com [email protected]

SQ-ASX SERIES ON/OFF SHOCK AND ACCELERATION SENSOR THEORY OF OPERATION Acceleration causes a spring and/or weight to either open or close a circuit depending on model. FUNCTIONAL BEHAVIOR SQ-ASA The SQ-ASA series sensor is a normally closed device. It is designed to be sensitive only in one direction. However, it will exhibit some off axis sensitivity. Typical cross axis open signals are in the 2 – 8 mS range, where on axis open signals are proportional to the duration of acceleration above the threshold. SQ-ASB The SQ-ASB series sensor is a normally closed device. It is designed to be sensitive...

SQ-ASX SERIES ON/OFF SHOCK AND ACCELERATION SENSOR PART COMPARISON PART NUMBER ACCELERATION THRESHOLD (ON AXIS) Normally closed Normally closed Normally open Normally open Normally open One axis, single sided Omnidirectional Radial axis Radial axis Radial axis PRODUCT COMPARISON GRADE ASSEMBLY METHOD Reflow Solder: 260° C peak Hand Assembly: 315° C peak, Yes Yes 2 -3 seconds on end terminal Reflow Solder: 260° C peak C Hand Assembly: 315° C peak, Yes Yes 2 -3 seconds on end terminal *Test conditions: 0.5 gRMS, 5 to 200 Hz flat spectrum I OPERATING TEMPERATURE ORDERING GUIDE PART NUMBER PACKAGING...

SQ-ASX SERIES ON/OFF SHOCK AND ACCELERATION SENSOR LIMITATIONS AND WARNINGS This product is not designed for use in life support and/or safety equipment where malfunction of the product can reasonably be expected to result in personal injury or death. Buyer uses this product in such applications at Buyer’s own risk and agrees to defend, indemnify, and hold harmless SignalQuest, LLC. from any and all damages, claims, suits, or expenses resulting from such misuse. TESTING The performance of each sensor is verified through build-time testing. SYSTEM INTEGRATION TESTING Thorough testing should be...