VEML6030
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High Accuracy Ambient Light Sensor With I2C Interface
DESCRIPTION
VEML6030 is a high accuracy ambient light digital 16-bit
resolution sensor in a miniature transparent 2 mm x 2 mm
package. It includes a high sensitive photodiode, a low
noise amplifier, a 16-bit A/D converter and supports an
easy to use I2C bus communication interface and additional
interrupt feature.
The ambient light result is as digital value available.
APPLICATIONS
Ambient light sensor for mobile devices (e.g. smart
phones, touch phones, PDA, GPS) for backlight dimming
Ambient light sensor for industrial on- / off-lighting
operation
Optical switch for consumer, computing, and industrial
devices and displays
FEATURES
Package type: surface-mount
Dimensions (L x W x H in mm): 2 x 2 x 0.87
Integrated modules: ambient light sensor (ALS)
Supply voltage range VDD: 2.5 V to 3.6 V
Communication via I2C interface
•I
2C bus H-level range: 1.7 V to 3.6 V
Floor life: 72 h, MSL 4, according to J-STD-020
Low stand by current consumption: typ. 0.5 μA
Material categorization: for definitions of
compliance please see www.vishay.com/doc?99912
AMBIENT LIGHT FUNCTION
•Filtron
TM technology adaption: close to real human eye
response
•O-Trim
TM technology adoption: ALS output tolerance
10 %
16-bit dynamic range for ambient light detection from
0 lx to about 120 klx with resolution down to 0.0036 lx/ct,
supports low transmittance (dark) lens design
100 Hz and 120 Hz flicker noise rejection
Excellent temperature compensation
High dynamic detection resolution
Software shutdown mode control
Note
(1) MOQ: minimum order quantity
PRODUCT SUMMARY
PART NUMBER
OPERATING
RANGE
(mm)
OPERATING
VOLTAGE
RANGE
(V)
I2C BUS
VOLTAGE
RANGE
(V)
AMBIENT
LIGHT RANGE
(lx)
AMBIENT
LIGHT
RESOLUTION
(lx)
OUTPUT
CODE
ADC RESOLUTION
PROXIMITY /
AMBIENT LIGHT
VEML6030 n/a 2.5 to 3.6 1.7 to 3.6 0 to 120 000 0.0036 16 bit, I2C - / 0.0036
ORDERING INFORMATION
ORDERING CODE PACKAGING VOLUME (1) REMARKS
VEML6030 Tape and reel MOQ: 3000 2.0 mm x 2.0 mm x 0.87 mm
VEML6030-GS15 MOQ: 10 000
VEML6030
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Notes
(1) Light source: white LED
(2) Light conditions: dark
CIRCUIT BLOCK DIAGRAM
Fig. 1 - Block Diagram
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. MAX. UNIT
Supply voltage VDD 04V
Operation temperature range Tamb -25 +85 °C
Storage temperature range Tstg -25 +85 °C
Total power dissipation Tamb 25 °C Ptot -50mW
Junction temperature Tj- 110 °C
BASIC CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
Supply voltage VDD 2.5 3.3 3.6 V
Shut down current (2) VDD is 3.3 V Isd -0.5-μA
Operation mode current (1)
VDD is 3.3 V, PSM = 11, refresh time 4100 ms IDD -2-μA
VDD is 3.3 V, PSM = 00, refresh time 600 ms IDD -8-μA
VDD is 3.3 V, PSM_EN = 0, refresh time 100 ms IDD -45-μA
I2C clock rate range fSCL 10 - 400 kHz
I2C bus input H-level range VDD is 3.3 V Vih 1.3 - 3.6 V
I2C bus input L-level range VDD is 3.3 V Vil -0.4V
Digital current out
(low, current sink) Iol 3--mA
Digital resolution (LSB count) with ALS_GAIN = “01” - 0.0036 - lx/step
Detectable minimum illuminance with ALS_GAIN = “01” EV min. - 0.0072 - lx
Detectable maximum illuminance with ALS_GAIN = “10” EV max. - 120 000 - lx
Dark offset (2) with ALS_GAIN = “01” - 3 - step
SDA 2
INT 3
6 VDD
5 SCL
4 ADDR
GND 1
ALS-PD
Output buffer
I2C interface
Low pass
lter
Temperature
sensor
Oscillator
Timing
controller
VEML6030
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Note
(1) Data based on standard I2C protocol requirement, not tested in production
Fig. 2 - I2C Timing Diagram
I2C TIMING CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER SYMBOL STANDARD MODE (1) FAST MODE (1)
UNIT
MIN. MAX. MIN. MAX.
Clock frequency f(SMBCLK) 10 100 10 400 kHz
Bus free time between start and stop condition t(BUF) 4.7 - 1.3 - μs
Hold time after (repeated) start condition;
after this period, the first clock is generated t(HDSTA) 4.0 - 0.6 - μs
Repeated start condition setup time t(SUSTA) 4.7 - 0.6 - μs
Stop condition setup time t(SUSTO) 4.0 - 0.6 - μs
Data hold time t(HDDAT) 0 3450 0 900 ns
Data setup time t(SUDAT) 250 - 100 - ns
I2C clock (SCK) low period t(LOW) 4.7 - 1.3 - μs
I2C clock (SCK) high period t(HIGH) 4.0 - 0.6 - μs
Detect clock / data low timeout t(TIMEOUT) 25 35 - - ms
Clock / data fall time t(F) - 300 - 300 ns
Clock / data rise time t(R) - 1000 - 300 ns
V
IH
V
IL
t
(BUF)
{
{
P
Stop condition
S
Start condition
{
{
PS
Start Stop
I2C bus
clock
(SLCK)
I2C bus
data
(SDAT)
I2C bus
clock
(SLCK)
I2C bus
data
(SDAT)
t
(LOW)
t
(R)
t
(F)
V
IH
V
IL
t
(HDSTA)
t
(HDDAT)
t
(HIGH)
t
(SUDAT)
t
(SUSTA)
t
(SUSTO)
t
(LOSEXT)
t
(LOWMEXT)
t
(LOWMEXT)
t
(LOWMEXT)
SCLK
ACK
SDA
ACK
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PARAMETER TIMING INFORMATION
Fig. 3 - I2C Bus Timing for Sending Word Command Format
Fig. 4 - I2C Bus Timing for Receive Word Command Format
ACK ACK
ACKACK
I
2
C bus
clock
(SCLK)
I
2
C bus
data
(SDAT)
I
2
C bus
clock
(SCLK)
I
2
C bus
data
(SDAT)
I
2
C bus slave address byte Command code
Start by
master
Stop by
master
Data byte low Data byte high
SA7 SA1SA2SA3SA4SA5SA6 SA7 SA1SA2SA3SA4SA5SA6 SA0
SA7 SA1SA2SA3SA4SA5SA6 SA0 SA7 SA1SA2SA3SA4SA5SA6 SA0
W
ACK
ACK ACK
I2C bus
clock
(SCLK)
I2C bus
data
(SDAT)
I2C bus slave address byte Command code
Start by
master
SA7 SA1SA2SA3SA4SA5SA6 SA7 SA1SA2SA3SA4SA5SA6 SA0
W
I2C bus
clock
(SCLK)
I2C bus
data
(SDAT)
Data byte low
Data byte high
ACK by
master
Start by
master
I2C bus slave address byte
I2C bus
clock
(SCLK)
I2C bus
data
(SDAT)
NACK by
master
Stop by
master
SA7 SA1SA2SA3SA4SA5SA6 SA7 SA1SA2SA3SA4SA5SA6 SA0
R
SA7 SA1SA2SA3SA4SA5SA6 SA0
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BASIC CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
Fig. 5 - Spectral Response Fig. 6 - White Channel Responsivity
ALS sensitivity spectrum close to human eye photopic curve V(λ). Human eye curve adaption achieved by Filtron technology.
Fig. 7 - Relative Radiant Sensitivity vs. Angular Displacement Fig. 8 - ALS measurement deviation between different light sources:
10 %
0
20
40
60
80
100
120
400 500 600 700 800 900 1000
λ- Wavelength (nm)
Normalized Responsivity
V(λ)
VEML6030
10
100
1000
10000
0
20
40
60
80
90
100
350 450 550 650 1050
Axis Title
1st line
2nd line
2nd line
S(λ)φ, rel - Relative Spectral Sensitivity
750
λ - Wavelength (nm)
950850
10
30
50
70
20°
40°
60°
80°
0.6
0.7
0.8
0.9
1.0
00.10.20.30.40.5
S
rel
- Relative Sensitivity
22308
ϕ - Angular Displacement
0
20
100
120
0 20406080100120
Reading of ALS (klx)
Brightness Acc. Calibrated Luxmeter (klx)
80
60
40
nom. -10 %
nom.
nom. +10 %
VEML6030
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APPLICATION INFORMATION
VEML6030 is a cost effective solution of ambient light sensor with I2C bus interface. The standard serial digital interface is easy
to access “Ambient Light Signal” without complex calculation and programming by external controller. Beside the digital output
also a flexible programmable interrupt pin is available.
1. Application Circuit
Fig. 9 - Application Circuit
(x) = Pin Number
Notes
The interrupt pin is an open drain output. Proposed values for the pull-up resistors should be > 1 kΩ, e.g. 2.2 kΩ to 4.7 kΩ for the R1 and
R2 (at SDA and SCL) and 10 kΩ to 100 kΩ for R3 (at interrupt).
Normally just one decoupling capacitor is needed. This should be 100 nF and placed close to the VDD pin.
Pin ADDR allows for the device addresses: pin 4 = high (VDD) = 0x48, pin 4 = low (GND) = 0x10
For detailed description about set-up and use of the interrupt as well as more application related information see AN: “Designing VEML6030
into an Application”
2. I2C Interface
The VEML6030 contains actual six 16 bit command codes for operation control, parameter setup, and result buffering. All
registers are accessible via I2C communication. Figure 7 shows the basic I2C communication with VEML6030.
The built in I2C interface is compatible with I2C modes “standard” and “fast”: 10 kHz to 400 kHz.
I2C H-level range = 1.3 V to 3.6 V.
Please refer to the I2C specification from NXP for details.
Fig. 10 - Send Byte / Receive Byte Protocol
Device Address
The VEML6030 has two fix slave addresses for the host
programming and accessing selection.
With ADDR pin plugged to power supply = high = VDD, the
predefined 7 bit I2C bus address is set to 1001000 = 0x48.
The least significant bit (LSB) defines read or write mode.
Accordingly the bus address is set to 1001 0000 = 90h for
write and 1001 0001 = 91h for read.
With ADDR pin plugged to ground = low, the slave address
(7 bit) is set to 0010000 = 0x10. According 8 bit the bus
address is then 0010 0000 = 20h for write and 0010 0001 =
21h for read.
Host
Micro Controller
VDD (6)
ADDR (4)
C2C1
R4
100 nF10 μF
10R
2.5 V to 3.6 V
1.7 V to 3.6 V
R1 R2 R3
GPIO (interrupt)
INT (3)
VEML6030
GND (1)
I2C bus clock SCL
SCL (5)
I2C bus data SDA
SDA (2)
C1 and R4
are optional
for very
disturbed
supply
Receive byte
Send byte
Host action
VEML6030 response
SSlave address A Command code AWr Data byte (LSB) A PData byte (MSB) A
SSlave address A Command code AData byte (LSB) A PData byte (MSB) N
Wr SSlave address Rd A
S = start condition
P = stop condition
A = acknowledge
N = no acknowledge
Read data from VEML6030
Write command to VEML6030
VEML6030
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Register Addresses
VEML6030 has actual six user accessible 16 bit command
codes.
The addresses are 00h to 06h (03h not defined / reserved).
Auto-Memorization
VEML6030 can memorize the last ambient data before
shutdown and keep this data before waking up.
When VEML6030 is in shutdown mode, the host can freely
read this data via read command directly.
When VEML6030 wakes up, the data will be refreshed by
new detection.
Note
Command code 0 default value is 01 = devices is shut down
Command Code #0: Configuration Register
Register address = 00h
The command code #0 is for configuration of the ambient light measurements.
Note
Light level [lx] is (ALS OUTPUT DATA [dec.] / ALS Gain x responsivity). Please study also the application note
COMMAND REGISTER FORMAT
COMMAND CODE REGISTER NAME BIT FUNCTION / DESCRIPTION R / W
00 ALS_CONF 0 15 : 0 ALS gain, integration time, interrupt, and shut down W
01 ALS_WH 15 : 8 ALS high threshold window setting (MSB) W
7 : 0 ALS high threshold window setting (LSB) W
02 ALS_WL 15 : 8 ALS low threshold window setting (MSB) W
7 : 0 ALS low threshold window setting (LSB) W
03 Power saving 15 : 0 Set (15 : 3) 0000 0000 0000 0b
04 ALS 15 : 8 MSB 8 bits data of whole ALS 16 bits R
7 : 0 LSB 8 bits data of whole ALS 16 bits R
05 WHITE 15 : 8 MSB 8 bits data of whole WHITE 16 bits R
7 : 0 LSB 8 bits data of whole WHITE 16 bits R
06 ALS_INT 15 : 0 ALS INT trigger event R
TABLE 1 - CONFIGURATION REGISTER #0
REGISTER NAME BIT FUNCTION / DESCRIPTION R / W
Reserved 15 : 13 Set 000b W
ALS_GAIN 12 : 11
Gain selection
00 = ALS gain x 1
01 = ALS gain x 2
10 = ALS gain x (1/8)
11 = ALS gain x (1/4)
W
reserved 10 Set 0b W
ALS_IT 9 : 6
ALS integration time setting
1100 = 25 ms
1000 = 50 ms
0000 = 100 ms
0001 = 200 ms
0010 = 400 ms
0011 = 800 ms
W
ALS_PERS 5 : 4
ALS persistence protect number setting
00 = 1
01 = 2
10 = 4
11 = 8
W
Reserved 3 : 2 Set 00b W
ALS_INT_EN 1
ALS interrupt enable setting
0 = ALS INT disable
1 = ALS INT enable
W
ALS_SD 0
ALS shut down setting
0 = ALS power on
1 = ALS shut down
W
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Command Code #1: High Threshold Windows Setting
Command code address = 01h. Once enable INT function and use high / low windows threshold, bit 15:0 provides 16 bit register
for high bound threshold windows setting.
Command Code #2: Low Threshold Windows Setting
Command code address = 02h. Once enable INT function and use high / low windows threshold, bit 15:0 provides 16 bit register
for low bound threshold windows setting.
Command Code #3: Power Saving Mode: PSM
Command code address = 03h. Bits 2 and 1 define the power saving modes. Bits 15 : 3 are reserved.
Command Code #4: ALS High Resolution Output Data
Command code address = 04h. To access 16 bit high resolution ALS output, it is suitable to follow read protocol to read from
command code #04 16 bits register.
Command Code #5: White Channel Output Data
Command code address = 05h. To access 16 bit WHITE output, it is suitable to follow read protocol to read from command
code #05 16 bits register.
TABLE 2 - HIGH THRESHOLD WINDOWS SETTING #1
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Description
ALS high threshold window setting (15:8 MSB 8 bits of whole 16 bits)
ALS high threshold window setting (7:0 LSB 8 bits of whole 16 bits)
TABLE 3 - LOW THRESHOLD WINDOWS SETTING #2
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Description
ALS low threshold window setting (15:8 MSB 8 bits of whole 16 bits)
ALS low threshold window setting (7:0 LSB 8 bits of whole 16 bits)
TABLE 4 - POWER SAVING MODES
COMMAND CODE REGISTER NAME BIT FUNCTION / DESCRIPTION R / W
03
PSM 2 : 1
Power saving mode; see table “Refresh time”
00 = mode 1
01 = mode 2
10 = mode 3
11 = mode 4
W
PSM_EN 0
Power saving mode enable setting
0 = disable
1 = enable
W
TABLE 5 - ALS HIGH RESOLUTION OUTPUT DATA #4
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Description
ALS high resolution output data (15 : 8 MSB 8 bits of whole 16 bits)
ALS high resolution output data (7 : 0 LSB 8 bits of whole 16 bits)
TABLE 6 - WHITE CHANNEL OUTPUT DATA #5
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Description
WHITE output data (15 : 8 MSB 8 bits of whole 16 bits)
WHITE output data (7 : 0 LSB 8 bits of whole 16 bits)
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Command Code #6: Interrupt Status
Command code address = 06h. Bit 15 defines interrupt flag while trigger occurred due to data crossing low threshold windows.
Bit 14 defines interrupt flag while trigger occurred due to data crossing high threshold windows.
REFRESH TIME DETERMINATION OF PSM
VEML6030’s refresh time can be determined by PSM and ALS_IT setting in power saving mode (PSM). Cooperating with the
command register setting, the designer has a flexible method in defining the timing, power consumption, and sensitivity for light
data collection.
TABLE 7 - INTERRUPT STATUS #6
Bit 15 Bit 14 Bit 13 to 0
int_th_low int_th_high reserved
Description
int_th_low Read bit. Indicated a low threshold exceed
int_th_high Read bit. Indicated a high threshold exceed
REFRESH TIME, IDD, AND RESOLUTION RELATION
ALS_GAIN PSM ALS_IT REFRESH TIME (ms) IDD (μA) RESOLUTION (lx/bit)
01 00 0000 600 8 0.0288
01 01 0000 1100 5 0.0288
01 10 0000 2100 3 0.0288
01 11 0000 4100 2 0.0288
01 00 0001 700 13 0.0144
01 01 0001 1200 8 0.0144
01 10 0001 2200 5 0.0144
01 11 0001 4200 3 0.0144
01 00 0010 900 20 0.0072
01 01 0010 1400 13 0.0072
01 10 0010 2400 8 0.0072
01 11 0010 4400 5 0.0072
01 00 0011 1300 28 0.0036
01 01 0011 1800 20 0.0036
01 10 0011 2800 13 0.0036
01 11 0011 4800 8 0.0036
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PACKAGE DIMENSIONS in millimeters
Not indicated tolerances ± 0.1
2
(0.6)
0.87
Technical drawings
according to DIN
specication
0.45 (6 x) 0.4 (6 x)
Pin 1 marking
Top View Pinning
1 GND
2 SDA
3 INT
ADD 4
SCL 5
VDD 6
Recommended Footprint
2.3
1.6
0.55 (6 x)
0.3 (6 x)
0.35 (4 x)
Drawing No.: 6.550-5348.01-4
Issue: 1; 19.02.16
2
2
1
1
0.65 (4 x)
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TAPE AND REEL DIMENSIONS in millimeters
Fig. 11 - 7" Reel, 3000 Pieces
Drawing-No.: 9.800-5096.01-4
Issue: 5; 20.12.2016
Form of the leave open of the wheel is supplier specic.
Ø 177.8 max.
Ø 55 min.
14.4 max.
Ø13
+0.5
-0.2
1.5 min.
Ø20.2 min.
8.4 +2.5
8.4 +0.15
Z
Z 2:1
Technical drawings
according to DIN
specication.
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Fig. 12 - 13" Reel, 10 000 Pieces
Z ( 2 : 1 )
Y ( 1 : 1 )
Z
Y
8.4 -0
2.5+
14.4 max.
100 min.
Technical drawings
according to DIN
specification.
Ø20.2 min.
13Ø-0.2
0.5+
1.5 min.
330 max.
Label
unreel direction
8.4 -0
0.15+
Drawing-No.: 9.800-5140.01-4
Issue: prel. 1; 02.03.2016
Form of the leave open
of the wheel is supplier specific.
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Fig. 13 - Taping
REFLOW SOLDER PROFILE
Fig. 14 - Lead (Pb)-free Reflow Solder Profile
According to J-STD-020
DRYPACK
Devices are packed in moisture barrier bags (MBB) to
prevent the products from moisture absorption during
transportation and storage. Each bag contains a desiccant.
FLOOR LIFE
Floor life (time between soldering and removing from MBB)
must not exceed the time indicated on MBB label:
Floor life: 72 h
Conditions: Tamb < 30 °C, RH < 60 %
Moisture sensitivity level 4, according to J-STD-020.
DRYING
In case of moisture absorption devices should be baked
before soldering. Conditions see J-STD-020 or label.
Devices taped on reel dry using recommended conditions
192 h at 40 °C (+ 5 °C), RH < 5 %.
Drawing-No.: 9.700-5397.01-4
Issue: 1; 19.02.16
technical drawings
according to DIN
specications
PIN 1
(8)
(1.75)(3.5)
(2.3)
(4)
(Ø 1)
(Ø 1.5)
(4)
(2)
Reel off direction
Y
Y
(0.25)
(2.3)
(1.25)
Y - Y
240 °C
Max. 260 °C
217 °C
255 °C
19841
10
100
1000
10000
0
100
200
300
0 50 100 150 200 300
Axis Title
1st line
2nd line
2nd line
Temperature (°C)
Time (s)
50
150
250
250
245 °C
Max. 100 s
Max. 30 s
Max. 120 s
Max. ramp down 6 °C/s
Max. ramp up 3 °C/s
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RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
such applications.
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