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STS21 Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers |
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STS21 Datasheet(HTML) 9 Page - List of Unclassifed Manufacturers |
9 / 12 page Datasheet STS21 www.sensirion.com Version 2 – December 2011 9/12 Environment Standard Results11 HTOL 125°C, 408 hours Within specifications TC -50°C - 125°C, 1000 cycles Within specifications UHST 130°C / 85%RH / ≈2.3bar, 96h Within specifications THB 85°C / 85%RH, 1000h Within specifications ESD immunity HBM 4kV, MM 200V, CDM 750V/500V (corner/other pins) Qualified Latch-up force current of ±100mA with Tamb = 125°C Qualified Table 9 Performed qualification test series. HTOL = High Temperature Operating Lifetime, TC = Temperature Cycles, UHST = Unbiased Highly accelerated Stress Test, THB = Temperature Humidity Biased. For details on ESD see Sect. 4.1. Sensor performance under other test conditions cannot be guaranteed and is not part of the sensor specifications. Especially, no guarantee can be given for sensor performance in the field or for customer‟s specific application. If sensors are qualified for reliability and behavior in extreme conditions, please make sure that they experience same conditions as the reference sensor. It should be taken into account that response times in assemblies may be longer, hence enough dwell time for the measurement shall be granted. For detailed information please consult Application Note “Testing Guide”. 8 Packaging 8.1 Packaging Type STS21 sensors are provided in DFN packaging (in analogy with QFN packaging). DFN stands for Dual Flat No leads. The sensor chip is mounted to a lead frame made of Cu and plated with Ni/Pd/Au. Chip and lead frame are over molded by green epoxy-based mold compound. Please note that side walls of sensors are diced and hence lead frame at diced edge is not covered with respective protective coating. The total weight of the sensor is 25mg. 8.2 Sockets For testing of STS21 sensors sockets, such as from Plastronics, part number 10LQ50S13030 are recommended (see e.g. www.locknest.com). 11 According to accuracy and long term drift specification given on Page 2. 8.3 Traceability Information All STS21 are laser marked with an alphanumeric, five- digit code on the sensor – see Figure 16. The marking on the sensor consists of two lines with five digits each. The first line denotes the sensor type (STS21). The first digit of the second line defines the output mode (D = digital, Sensibus and I2C, P = PWM, S = SDM). The second digit defines the manufacturing year (0 = 2010, 1 = 2011, etc.). The last three digits represent an alphanumeric tracking code. That code can be decoded by Sensirion only and allows for tracking on batch level through production, calibration and testing – and will be provided upon justified request. Figure 16 Laser marking on STS21. For details see text. Reels are also labeled, as displayed in Figure 17 and Figure 18, and give additional traceability information. Figure 17 First label on reel: O = Output mode (D = Digital), XX = Sensor Type (21 for STS21), NN = product revision no., Y = last digit of year, RRR = number of sensors on reel divided by 10 (200 for 2000 units), TTTTT = Traceability Code. Figure 18 Second label on reel: For Device Type and Part Order Number (See Packaging Information on page 2), Delivery Date (also Date Code) is date of packaging of sensors (DD = day, MM = month, YYYY = year), CCCC = Sensirion order number. STS21 D0AC4 Device Type: 1-100PPP-NN Description: Temperature Sensor STSxx Part Order No. 1-100PPP-NN or Customer Number Date of Delivery: DD.MM.YYYY Order Code: 46CCCC / 0 Lot No.: OXX-NN-YRRRTTTTT Quantity: RRRR RoHS: Compliant Lot No. |
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