NT73
negative tempco thermistor
EU
features
• Anti-leaching nickel barrier terminations
• Twelve standard resistance values
• Suitable for reflow and wave soldering
• Marking: 1J no marking on pink body, 2A
and 2B black three digit on pink body color
• Products with lead-free terminations meet EU RoHS
requirements. Pb located in glass material, electrode
and resistor element is exempt per Annex 1, exemption
5 of EU directive 2005/95/EC
dimensions and construction
L
Type
(Inch Size Code)
Dimensions inches (mm)
c
c
L
W
c
d
t
1J
(0603)
.063 .008 .031 .004 .012 .004 .012 .004 .02 .004
(1.6 0.2)
(0.8 0.1)
(0.3 0.1)
(0.3 0.1)
(0.5 0.1)
W
d
+.008
+.008
.012
.02
Solder
Plating
2A
.079 .008 .049 .004 .016 .008
-.004
-.004
(0.3 +0.2
)
(0.5 +0.2
)
(0805)
(2.0 0.2) (1.25 0.1) (0.4 0.2)
-0.1
-0.1
Ni
t
+.008
Plating
.016
2B
(1206)
.126 .008 .063 .008 .02 .008
-.004 .024 .004
(0.4 +0.2
)
(3.2 0.2)
(1.6 0.2)
(0.5 0.3)
(0.6 0.1)
-0.1
Protective
Coating
Resistive Inner
Film Electrode
Ceramic
Substrate
ordering information
New Part #
NT73
2A
T
TD
103
K
3800
J
Size
Code
Termination
Material
Nominal
Resistance
Resistance
Tolerance
B Constant
Nominal
B Constant
Tolerance
Type
Packaging
1J: 0603
2A: 0805
2B: 1206
T: Sn
TD: 7"
paper tape
(5,000
2 significant
figures + 1
multiplier
J: 5%
K: 10%
L: 15%
3200
3500
3700
3800
3950
4100
H: 3%
J: 5%
K: 10%
(Other termination
styles may be
available, please
contact factory
for options)
pieces/reel)
applications and ratings
Power
Rating
(mW)
Operating
Temperature
Range
Part
Designation
Resistance
@ 25°C
Resistance
Tolerance
B Constant
@ 25°C/75°C
B Constant
Tolerance
6.8kΩ
10kΩ
15kΩ
10kΩ
20kΩ
22kΩ
30kΩ
33kΩ
47kΩ
68kΩ
100kΩ
47kΩ
10%
5%
3%
3500K
3800K
3700K
-55°C
to
+125°C
J: 5%
K: 10%
NT731J
5
5%
3800K
4100K
3%
For further information on packaging,
please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/31/08
154
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com