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NTC SMD Thermistors
With Nickel Barrier Termination 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
DIMENSIONS:
millimeters (inches)
NB 21
IEC SIZE : 0603
1.6 (.063) 0.2 (.008)
0.8 (.031)
±0.2 (.008)
0.8 (.031)
±0.2 (.008)
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 36 to 40.
APPLICATIONS
Nickel Barrier
On packaging only
40/125/56
-55°C to +150°C
±5%, ±10%, ±20%
0.07 W
1 mW/°C
4s
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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 21
Type
K0
Material Code
K
(See tables page 15)
0103
Resistance
10,000 Ω
M
Tolerance
M (±20%)
J (±5%)
BB
Suffix: Packaging
– –: Bulk
BB: Cardboard tape
K (±10%)
(180mm diam. reel)
BF: Cardboard tape (1/2 reel)
BD: Cardboard tape
(330mm diam. reel)
14
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