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W
Vishay Dale  
NTC Thermistors, Surface Mount Chip  
FEATURES  
• Top and bottom surface terminations  
• High-density monolithic ceramic construction  
• Allows design flexibility for use with hyprid circuitry  
• Model W is a thermistor die with silver conductors fired on  
the top and bottom surfaces. The bottom surface can be  
reflow soldered or conductive epoxied directly to a  
substrate bonding pad and the top surface wire bonded to  
comlete the circuit connection.  
STANDARD ELECTRICAL SPECIFICATIONS AND DIMENSIONS in inches [millimeters]  
T
L
W
R25 (Ω)  
10.0M  
500 000  
250 000  
200 000  
100 000  
100 000  
100 000  
80 000  
50 000  
50 000  
30 000  
30 000  
30 000  
20 000  
15 000  
10 000  
3000  
2000  
2000  
1000  
1000  
500  
500  
300  
50  
PART NUMBER  
12W1004  
12W5003  
12W2503  
7W2003  
12W1003  
8W1003  
7W1003  
8W8002  
8W5002  
7W5002  
8W3002  
7W3002  
1W3002  
1W2002  
1W1502  
1W1002  
1W3001  
1W2001  
2W2001  
2W1001  
1W1001  
2W5000  
1W5000  
2W3000  
2W0500  
CURVE NUMBER  
L
W
T (nominal)  
0.020 [0.51]  
0.016 [0.41]  
0.016 [0.41]  
0.033 [0.84]  
0.016 [0.41]  
0.029 [0.74]  
0.029 [0.74]  
0.024 [0.61]  
0.018 [0.46]  
0.014 [0.36]  
0.015 [0.38]  
0.015 [0.38]  
0.032 [0.81]  
0.032 [0.81]  
0.032 [0.81]  
0.032 [0.81]  
0.015 [0.38]  
0.015 [0.38]  
0.037 [0.94]  
0.022 [0.56]  
0.015 [0.38]  
0.015 [0.38]  
0.015 [0.38]  
0.015 [0.38]  
0.015 [0.38]  
12  
12  
12  
7
12  
8
7
8
8
7
8
7
1
1
1
1
1
1
0.043 0.004 [10.1 0.10]  
0.053 0.004 [10.4 0.10]  
0.075 0.006 [10.9 0.15]  
0.041 0.004 [10.0 0.10]  
0.119 0.008 [30.0 0.20]  
0.049 0.004 [10.2 0.10]  
0.054 0.005 [10.4 0.13]  
0.049 0.004 [10.2 0.10]  
0.053 0.004 [10.4 0.10]  
0.051 0.004 [10.3 0.10]  
0.072 0.005 [10.8 0.13]  
0.069 0.005 [10.8 0.13]  
0.029 0.003 [0.74 0.08]  
0.035 0.004 [0.89 0.10]  
0.041 0.004 [10.0 0.10]  
0.050 0.005 [10.3 0.13]  
0.068 0.005 [10.7 0.13]  
0.101 0.006 [20.6 0.15]  
0.049 0.004 [10.2 0.10]  
0.053 0.004 [10.4 0.10]  
0.105 0.006 [20.7 0.15]  
0.060 0.005 [10.5 0.13]  
0.148 0.006 [30.8 0.15]  
0.077 0.006 [20.0 0.15]  
0.188 0.012 [40.8 0.31]  
0.043 0.004 [10.1 0.10]  
0.053 0.004 [10.4 0.10]  
0.075 0.006 [10.9 0.15]  
0.041 0.004 [10.0 0.10]  
0.119 0.008 [30.0 0.20]  
0.049 0.004 [10.2 0.10]  
0.054 0.005 [10.4 0.13]  
0.049 0.004 [10.2 0.10]  
0.053 0.004 [10.4 0.10]  
0.051 0.004 [10.3 0.10]  
0.054 0.005 [10.4 0.13]  
0.069 0.005 [10.8 0.13]  
0.029 0.003 [0.74 0.08]  
0.035 0.004 [0.89 0.10]  
0.041 0.004 [10.0 0.10]  
0.050 0.005 [10.3 0.13]  
0.054 0.004 [10.4 0.10]  
0.054 0.004 [10.4 0.10]  
0.049 0.004 [10.2 0.10]  
0.053 0.004 [10.4 0.10]  
0.105 0.006 [20.7 0.15]  
0.060 0.005 [10.5 0.13]  
0.148 0.006 [30.8 0.15]  
0.077 0.006 [20.0 0.15]  
0.188 0.012 [40.8 0.31]  
2
2
1
2
1
2
2
GLOBAL PART NUMBER INFORMATION  
New Global Part Numbering: 08W8002KT (preferred part number format)  
0
8
W
1
0
0
2
K
T
CURVE  
GLOBAL MODEL  
RESISTANCE VALUE  
TOLERANCE CODE  
PACKAGING  
01  
02  
07  
08  
12  
W
1002 = 10K  
J = 5 ꢀ  
E = Lead (Pb)-free, Tray  
T = Tin/Lead, Tray  
K = 10 ꢀ  
Historical Part Number example: TOMC16011002Z (will continue to be accepted)  
08  
W
8002  
K
T
HISTORICAL CURVE  
GLOBAL MODEL  
RESISTANCE VALUE  
TOLERANCE CODE  
PACKAGING  
www.vishay.com  
144  
For technical questions, contact: thermistor1@vishay.com  
Document Number: 33006  
Revision: 21-Sep-04  
Legal Disclaimer Notice  
Vishay  
Notice  
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,  
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.  
Information contained herein is intended to provide a product description only. No license, express or implied, by  
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's  
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express  
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness  
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.  
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.  
Customers using or selling these products for use in such applications do so at their own risk and agree to fully  
indemnify Vishay for any damages resulting from such improper use or sale.  
Document Number: 91000  
Revision: 08-Apr-05  
www.vishay.com  
1