NTC SMD Thermistors
With Nickel Barrier Termination NB 12 - NB 20 - NB 21
Chip thermistors are high quality and low cost devices
especially developed for surface mounting applications. They
are widely used for temperature compensation but can also
achieve temperature control of printed circuits.
A nickel barrier metallization provides outstanding qualities of
solderability and enables this chip to meet the requirements
of the most severe soldering processes.
Types
NB 21
IEC SIZE : 06-03
1.6 (.063)
±
0.2 (.008)
NB 12
IEC SIZE : 08-05
2 (.079)
±
0.3 (.012)
1.25 (.049)
±
0.2 (.008)
0.5 (.020)
... 1.3 (.051)
NB 20
IEC SIZE : 12-06
3.2 (.126)
±
0.4 (.016)
1.6 (.063)
±
0.25 (.010)
0.5 (.020)
... 1.5 (.059)
DIMENSIONS:
millimeters (inches)
0.8 (.031)
±
0.2 (.008)
0.2 (.008) min
0.2 (.008) min
0.2 (.008) min
0.2 (.008) min
0.2 (.008) min
0.2 (.008) min
Terminations
Marking
Climatic category
Operating temperature
Tolerance on Rn (25°C)
Maximum dissipation at 25°C
Thermal dissipation factor
Thermal time constant
Resistance - Temperature characteristics: pages 32 to 35.
Nickel Barrier
On packaging only
40/125/56
-55°C to +150°C
±5%, ±10%, ±20%
0.7 W
1 mW/°C
4s
0.12 W
2 mW/°C
5s
0.24 W
4 mW/°C
7s
APPLICATIONS
•
•
•
•
•
•
•
•
•
LCD compensation
Battery packs
Mobile phones
CD players
Heating systems
Air-conditioning systems
Temperature control of Switch Mode Power Supplies
Compensation of pressure sensors
Protection of power transistors in various electronic circuits
HOW TO ORDER
NB 20
K0
0103
M
BA
Type
Material Code
K
(See tables page 13)
Resistance
10,000
Ω
Tolerance
M (±20%)
Suffix: Packaging
– –: Bulk
BA: Super 8 plastic
tape
BE: Super 8 plastic
tape (1/2 reel)
12
TPC
51单片机
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