SHT71 SENSIRION, SHT71 Datasheet - Page 9

• Manufacturer Part Number: SHT71
• Description: Humidity Sensor
• Manufacturer: SENSIRION

Specifications of SHT71

• Sensing Accuracy: 3%
• Sensor Output: Digital
• Sensor Terminals: Through Hole
• Peak Reflow Compatible (260 C): Yes
• Terminal Type: PCB Surface Mount
• Humidity Range: 0 To 100% RH
• Response Time: 8s
• Humidity Accuracy ±: 3%
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Package / Case: 4-SIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Datasheet SHT7x
Table 10: Qualification tests: HTSL = High Temperature Storage
Lifetime, TC = Temperature Cycles, UHST = Unbiased Highly
accelerated temperature and humidity Test, THU = Temperature
humidity unbiased
6 Packaging
6.1
The device is supplied in a single-in-line pin type package.
The sensor housing consists of a Liquid Crystal Polymer
(LCP) cap with epoxy glob top on a standard 0.6 mm FR4
substrate. The sensor head is connected to the pins, by a
small bridge to minimize heat conduction and response
times. The pins are made of Cu/Be alloy coated with
1.3µm Ni and 0.5µm Au, which are soldered to the FR4
substrate by lead-free solder paste. The gold plated back
side of the sensor head is connected to the GND pin. A
100nF capacitor is mounted on the back side between
VDD and GND. The device is fully RoHS and WEEE
compliant – thus it is free of of Pb, Cd, Hg, Cr(6+), PBB
and PBDE.
Size including pins is 19.5 x 5.08 x 3.1mm. Total weight:
168 mg, weight of sensor head: 73 mg.
All pins are Au plated to avoid corrosion. They can be
soldered or mate with most 1.27 mm (0.05’’) sockets, for
example: Preci-dip / Mill-Max R851-83-004-20-001 or
similar.
6.2
All SHT7x are marked with an alphanumeric, three digit
code on the chip cap (for reference: V3 sensors were
labeled with numeric codes) – see “B2G” on Figure 1. The
lot numbers allow full traceability through production,
calibration and testing. No information can be derived from
the code directly, respective data is stored at Sensirion.
Labels on the reels are displayed in Figure 14 and Figure
15, they both give traceability information.
16
www.sensirion.com
Environment Standard
THU
ESD immunity MIL STD 883E, method 3015
Latch-up
HTOL
TC
According to accuracy and long term drift specification given on Page 2.
Packaging type
Traceability Information
125°C, 1000 h
-40°C - 125°C, 500 cycles
Acc. JESD22-A104-C
85°C / 85%RH, 1000h
(Human Body Model at ±2kV)
force current of ±100mA with
T
amb
= 80°C, acc. JEDEC 17
Results
Within
specifications
Within
specifications
Within
specifications
Qualified
Qualified
16
Version 4.3 – May 2010
Figure 14: First label on reel: XX = Sensor Type (71 for SHT71),
NN = Chip Version (04 for V4), Y = last digit of year, RRR =
number of sensors on reel divided by 10 (200 for 2000 units),
TTTTT = Traceability Code.
Figure 15: Second label on reel: For Device Type and Part
Order Number please refer to Table 12, Delivery Date (also
Date Code) is date of packaging of sensors (DD = day, MM =
month, YYYY = year), CCCC = number of order.
6.3
SHT7x are shipped in 32mm tape at 50pcs each – for
details see Figure 16 and Table 12. Reels are individually
labeled with barcode and human readable labels, see
section 6.2.
Sensor Type
SHT71
SHT75
Table 11: Packaging types per sensor type.
Dimensions of packaging tape are given in Figure 16. All
tapes have a 7 pockets empty leader tape (first pockets of
the tape) and a 7 pockets empty trailer tape (last pockets
of the tape).
Lot No.:
Quantity:
RoHS:
Lot No.
Device Type:
Description:
Part Order No.
Date of Delivery: DD.MM.YYYY
Order Code:
Shipping Package
Tape Stripes
Tape Stripes
Packaging
XX0-NN-YRRRTTTTT
RRRR
Compliant
1-100PPP-NN
Humidity & Temperature Sensor
SHTxx
1-100PPP-NN or Customer Number
45CCCC / 0
Quantity
50
50
Order Number
1-100092-04
1-100071-04
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