BEN5IRION THS SENSOR COMPANY Datasheet Filter Cap SF1 For Humidity and Temprature Sensor Protection against dust and particles 镕 Protection against water immersion Designed to match on SHT1x SMD type sensors Օ Optimized on response time of sensor Product Summary The Filter Cap SF1 protects SHT1x humidity and temperature sensors against dust, water immersion and consequent condensation, as well as against contamination by particles. The cavity inside is made such that the volume between membrane and sensor is kept minimal and hence the impact on response time for humidity measurements is reduced to a minimum. The Filter Cap is available in white color. The Filter Cap is made of a single piece of Polypropylene (PP) and a filter membrane welded to the single piece. The Filter Cap is designed to be mounted after soldering by sticking two pins into holes in the PCB and welding it from back side. Together with the sensor it provides a compact entity which may serve as an adaptor to the device housing. Adding adhesive for seal to PCB and using an O-ring it provides a waterproof mounting solution. Dimensions Technical Specifications Filter Membrane 2x 0 1.5 ai Parameter Value Body material Poly Propylene (PP) ci Filter material PTFE with polyester scrim } Color White 1 Operating Range -40 ... 100°C r-- Filter pore size 1.5|jm Filtration efficiency 1 99.99% Oleophobic Rating 2 6 (Scale from 1 - 10) Mullen Hydrostatic 70kPa, 7m water column RoHS Compliant Packaging Filter Caps SF1 are supplied in stackable plastic trays at 100 units per tray. 4 trays are packed into a bag. Product Packaging Quantity Order Number Filter Cap SF1 Plastic Trays 100 1-100188-01 Figure 1: Drawing of Filter Cap SF1. Dimensions are given in mm (1mm = 0.039inch), tolerances are ±0.1mm for dimensions <6mm and ±0.2mm for dimensions >6mm. Cavity inside the cap fits perfectly to SHT1x sensors. Additional cavities for solder joints are left open at each side. 1 0.1jm particles at 0.05m/s air flow. 2 Repellence of oil and hydrocarbons according to AATCC standard. Rating 6 means n-Decane is repelled. www.sensirion.com Version 2.0 - January 2009 1/3

BEN5IRION THE SENSOR COMPANY User's Guide Filter Cap SF1 Mounting Instruction The Filter Cap SF1 is mounted to the PCB after soldering SHTIx sensor by sticking the two pins into two openings in the PCB. The Filter Cap may be fixed by adhesive or by melting the pins from the back side by heating them up to at least 160°C by a hot iron or equivalent - compare Figure 2. around the black cap and on the PCB around the sensor before mounting the Filter Cap. Make sure environment is well ventilated while adhesive is curing. Adhesive must be of high viscosity to prevent it from entering the sensor protection...

Datasheet Filter Cap SF1 SENSIRION Revision History Date Version Page(s) Changes September 2003 1.0 1 - 5 Initial Release October 2006 1.1 1 - 5 Add information for seal and o-ring plus sourcing information January 2009 2.0 1 - 3 New release, rework of datasheet (no changes made to product) Important Notices Warning, Personal Injury Do not use this product as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Do not use this product for applications other than its intended and authorized use. Before installing, handling,...