g
NTC THERMISTORS: TYPE NB
NICKEL BARRIER SMD CHIP THERMISTOR 1206/0805 & 0603 SIZE
DESCRIPTION:
1206, 0805 & 0603 negative temperature coefficient (NTC)
Ceramic chip thermistors are intended for surface mounting
applications. The terminations are solder plated with nickel
barrier. Type NB’s are manufactured using Thermometrics
exclusive “State of the Art” materials and processing tech-
niques. These techniques result in a low cost, rugged and
stable component.
FEATURES:
•
•
•
•
•
•
•
•
•
Cost effective thermistor for automatic placement
Solder plated Nickel Barrier Terminations
Standard resistance tolerances down to ± 3%
High sensitivity to changes in temperature
Suitable for temperature measurement, control and
compensation
Suitable for wave and reflow soldering
Wide operating temperature range -40°C to 125°C
Rugged construction
Available pocket taped (8mm) to EIA RS-481
TYPE NUMBER
(BULK PACK)
NB1206SA103JB
NB1206SA503JB
NB1206SB104JB
NB0805SA103JB
NB0805SD223JB
NB0805SC303JB
NB0805SE503JB
NB0805SB104JB
NB0603SA103JB
NB0603SE503JB
NB0603SB104JB
R@25ºC
(Ohms)
10K
50K
100K
10K
22K
30K
50K
100K
10K
50K
100K
MATERIAL
SYSTEM
2
5
1
2
2A
5A
5
1
2
5
1
tc @ 25ºC
(%/ºC)
-3.89
-4.13
-4.39
-3.89
-3.99
-4.11
-4.13
-4.39
-3.89
-4.13
-4.39
BETA (K)
25/85
3540
3740
3977
3540
3627
3730
3740
3977
3540
3740
3977
Crown Industrial Estate, Priorswood Road
Taunton, Somerset TA2 8QY UK
Tel +44 (0) 1823 335200
Fax +44 (0) 1823 332637
808 US Highway 1
Edison, New Jersey 08817-4695 USA
Tel +1 (732) 287 2870
Fax +1 (732) 287 8847
967 Windfall Road
St. Marys, Pennsylvania 15857-3397 USA
Tel +1 (814) 834 9140
Fax +1 (814) 781 7969
g
NTC THERMISTORS: TYPE NB
NICKEL BARRIER SMD CHIP THERMISTOR 1206/0805 & 0603 SIZE
RESISTANCE v TEMPERATURE DATA
RATIO Rt/R25 Nominal
MATERIAL SYSTEM
TEMP ºC
-55
-45
-35
-25
-15
-5
5
15
25
35
45
55
65
75
85
95
105
115
125
1
94.57
46.67
24.11
12.99
7.281
4.229
2.539
1.571
1.0000
0.6530
0.4367
0.2985
0.2082
0.1480
0.10700
0.07864
0.05868
0.04439
0.03403
2
56.63
30.22
16.81
9.72
5.816
3.593
2.286
1.493
1.0000
0.6849
0.4789
0.3414
0.2477
0.1827
0.13682
0.10392
0.07998
0.06231
0.04911
2A
61.82
32.64
17.96
10.26
6.069
3.708
2.333
1.508
1.0000
0.6785
0.4702
0.3324
0.2393
0.1752
0.13029
0.09832
0.07521
0.05826
0.04567
5
73.35
37.53
20.08
11.20
6.485
3.886
2.403
1.530
1.0000
0.6698
0.4587
0.3208
0.2286
0.1658
0.12228
0.09154
0.06950
0.05346
0.04163
5A
70.47
36.35
19.59
10.99
6.398
3.851
2.390
1.526
1.0000
0.6710
0.4603
0.3222
0.2298
0.1667
0.12297
0.09204
0.06986
0.05371
0.04180
DATA:
Resistance Tolerance @ 25°C…..±5% (J)
Tolerance on “Beta”……………………±1%
Time constant ….……………....10 sec Typ.
Dissipation factor……………..8 mW/ºC Typ.
Operating Range…………...-40°C to 125°C
Soldering & cleaning ...Information available
upon request.
OPTIONS:
•
For reel taping replace suffix “B” with “R”
in Type Number
•
Other resistance values in the range
2KΩ - 200KΩ available
•
Other tolerances (K) ±10% and (H) ±3%
available
•
Tolerances at temperatures other than 25°C
available.
ISSUE 5 – DEC 99
Crown Industrial Estate, Priorswood Road
Taunton, Somerset TA2 8QY UK
Tel +44 (0) 1823 335200
Fax +44 (0) 1823 332637
808 US Highway 1
Edison, New Jersey 08817-4695 USA
Tel +1 (732) 287 2870
Fax +1 (732) 287 8847
967 Windfall Road
St. Marys, Pennsylvania 15857-3397 USA
Tel +1 (814) 834 9140
Fax +1 (814) 781 7969
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