SQ-SEN-390 Tilt Sensor
6Pages

SQ-SEN-390 ON/OFF TILT SENSOR RoHS compliant, lead-free SMD package DESCRIPTION The SQ-SEN-390 series sensor acts like a position sensitive switch which is normally closed when below horizontal and normally open when above horizontal. When at rest, it normally settles in a closed state. When in motion, it will produce continuous on/off contact closures. It is sensitive to both tilt (static acceleration) and vibration (dynamic acceleration). The sensor can be easily used to produce a series of CMOS or TTL level logic level or pulse train using a single resistor to limit current. The signal level can be read directly by a digital input. This can be used to interrupt (wake up) a microcontroller or can be counted to estimate the amount and duration of activity. The sensor is fully passive, requires no signal conditioning, and draws as little as 0.25uA of continuous current. On / off tilt sensing Normally open when above horizontal Normally closed when below horizontal Chatters open / closed when vibrated Ultra low power - As little as 0.25 uA continuous Surface mount device (SMD) - RoHS compliant, lead-free, tape and reel High sensitivity & long life - 99.97% pure gold plating Miniature size - 3.3 mm x 6.9 mm Simple interface - No signal conditioning required Quiet - Undetectable sounds level FUNCTIONAL DIAGRAM 90 º Normally open when vertical Normally open Normally closed when past horizontal Tilt angle detection, vibration sensing Security, anti-tamper, anti-theft Alarms, automotive PATENTS US 7326866, 7067748, 7326867, 7421793. Patents pending. 10 Water St. Lebanon, NH 03766 USA Page 1 of 6 www.signalquest.com info@signalquest.com

SQ-SEN-390 ON/OFF TILT SENSOR 10 Water St. Lebanon, NH 03766 USA Page 2 of 6 www.signalquest.com info@signalquest.com

SQ-SEN-390 ON/OFF TILT SENSOR THEORY OF OPERATION The SQ-SEN-3XX series sensor acts like a position sensitive switch which is normally open in a range of orientations, and a normally closed in another range of orientations. When resting in a normally open orientation, contacts are virtually guaranteed to be open. When resting in the normally closed orientation (unlike normally open) contacts are not guaranteed to be closed. A good rule of thumb is that they will be closed 75% - 99% of the time, when at rest. When in a normally closed orientation, the sensor will chatter open and closed as...

SQ-SEN-390 ON/OFF TILT 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 4 of 6 www.signalquest.com info@signalquest.com

SQ-SEN-390 ON/OFF TILT SENSOR PRODUCT COMPARISON GRADE C ASSEMBLY METHOD Reflow Solder: 260° C peak Hand Assembly: 315° C peak, 2 -3 seconds on end terminal Reflow Solder: 260° C peak Hand Assembly: 315° C peak, 2 -3 seconds on end terminal WASH TOLERANCE PB-FREE, ROHS OPERATING TEMPERATURE ORDERING GUIDE PART NUMBER SQ-SEN-390-C PACKAGING CODE BB - Bulk Bag CT - Cut Tape TR - Tape on Reel BB - Bulk Bag CT - Cut Tape TR - Tape on Reel 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...

SQ-SEN-390 ON/OFF TILT SENSOR 10 Water St. Lebanon, NH 03766 USA Page 6 of 6 www.signalquest.com info@signalquest.com