1
TPC
APPLICATIONS
• High precision resistance
• Tight B tolerance
• Ideal for temperature measurement applications
TECHNOLOGY
• NJ range: Coated chip (phenolic resin + varnish overcoat + bare leads)
• NI range: Coated chip (epoxy resin and insulated leads)
• Leads: Radial wire: NJ: tinned copper (*)
NI: PTFE insulated silvered nickel
• Marking: on package only
• Delivery Mode: Bulk for NI range
Bulk or Reel or Ammopack for NJ range
(*) other materials available: consult us
PERFORMANCE CHARACTERISTICS
Types Accurate Thermistors
NJ28 NI24
Operating Temperature –55 to +150°C
Tolerance on Rn (25°C) ±1%, ±2%, ±3%
Maximum dissipation at 25°C 0.16 W
Thermal dissipation factor 3 mW/°C
Thermal time constant 8 s
Response time < 2 s
Accuracy Series
NJ28
NI24
NTC Accurate Leaded Thermistors
NI24 • NJ28
HOW TO ORDER
NJ28
Type
MA
Material Code
MA
0502
Resistance
5 kΩ
F
Tolerance
F (±1%)
––
Packaging
Bulk
2TPCTPC
NTC Accurate Leaded Thermistors
NI24 • NJ28
Part Number Rn at 25°C (Ω)Material Code B (K) at 25°C (%/°C)
NI24KA0202 2000 KA 3625 ±1% –4.1
NI24MA0302 3000 MA 3960 ±0.5% –4.5
NI24MA0502 5000 MA 3960 ±0.5% –4.5
NI24MA0103 10000 MA 3960 ±0.5% –4.5
NI24NA0103 10000 NA 4100 ±1% –4.6
NI24PA0203 20000 PA 4235 ±1% –4.8
NI24QA0503 50000 QA 4250 ±1% –4.8
NI24RA0104 100000 RA 4380 ±1% –4.9
Part Number Rn at 25°C (Ω)Material Code B (K) at 25°C (%/°C)
NJ28KA0202 2000 KA 3625 ±1% –4.1
NJ28MA0302 3000 MA 3960 ±0.5% –4.5
NJ28MA0502 5000 MA 3960 ±0.5% –4.5
NJ28MA0103 5000 MA 3960 ±0.5% –4.5
NJ28NA0103 10000 NA 4100 ±1% –4.6
NJ28PA0203 20000 PA 4235 ±1% –4.8
NJ28QA0503 50000 QA 4250 ±1% –4.8
NJ28RA0104 100000 RA 4380 ±1% –4.9
2.40 (0.094) max
.....0.53 (0.021) min
2.40 (0.094) max
35.0 (1.378) min
5.00 to 9.00
(0.197 to 0.354)
AWG 30
TABLE OF VALUES
NI24
TABLE OF VALUES
NJ28
2.80 (0.110) max 2.80 (0.110) max
35.0 (1.378) min
3.00 (0.118) max
0.40 (0.016) +10 %
- 0.06
3
TPC
NTC Accurate Leaded Thermistors
NI24 • NJ28
TABLE OF RESISTANCE: TEMPERATURE CHARACTERISTICS
Material code B (K)
TKA 3625 MA 3960 NA 4100 T
(°C) R (T) / R25 TF (%) α (%/°C) R (T) / R25 TF (%) α (%/°C) R (T) / R25 TF (%) α (%/°C) (°C)
- 55 61.21 7.1 6.77 104.2 3.9 7.89 109.5 8.0 7.83 - 55
- 50 44.24 6.1 6.53 71.63 3.4 7.57 75.42 6.9 7.54 - 50
- 45 32.33 5.3 6.30 49.94 2.9 7.28 52.63 6.0 7.27 - 45
- 40 23.88 4.5 6.08 35.28 2.5 7.00 37.18 5.1 7.01 - 40
- 35 17.81 3.8 5.88 25.25 2.1 6.73 26.58 4.3 6.76 - 35
- 30 13.41 3.2 5.68 18.28 1.8 6.48 19.22 3.7 6.52 - 30
- 25 10.19 2.7 5.49 13.39 1.5 6.25 14.04 3.1 6.30 - 25
- 20 7.814 2.2 5.31 9.917 1.2 6.02 10.37 2.5 6.09 - 20
- 15 6.040 1.8 5.14 7.419 1.0 5.81 7.730 2.1 5.89 - 15
- 10 4.707 1.5 4.98 5.605 .8 5.61 5.817 1.6 5.70 - 10
- 5 3.696 1.1 4.83 4.275 .6 5.42 4.416 1.3 5.51 - 5
02.923 .9 4.68 3.289 .5 5.24 3.382 1.0 5.34 0
52.329 .6 4.53 2.552 .3 5.06 2.611 .7 5.17 5
10 1.867 .4 4.40 1.997 .2 4.90 2.032 .5 5.01 10
15 1.507 .3 4.27 1.574 .1 4.74 1.593 .3 4.86 15
20 1.224 .1 4.14 1.250 .1 4.59 1.258 .1 4.71 20
25 1.0000 0.0 4.02 1.0000 0.0 4.45 1.0000 0.0 4.57 25
30 .8217 .1 3.91 .8053 .1 4.31 .8004 .1 4.44 30
35 .6788 .2 3.80 .6527 .1 4.18 .6446 .3 4.31 35
40 .5638 .4 3.69 .5323 .2 4.06 .5224 .4 4.19 40
45 .4707 .5 3.59 .4367 .3 3.94 .4258 .6 4.07 45
50 .3948 .7 3.49 .3604 .4 3.82 .3491 .8 3.96 50
55 .3328 .9 3.40 .2990 .5 3.71 .2877 1.0 3.85 55
60 .2818 1.0 3.31 .2493 .6 3.61 .2383 1.2 3.74 60
65 .2396 1.2 3.22 .2090 .7 3.51 .1984 1.4 3.64 65
70 .2046 1.4 3.14 .1760 .8 3.41 .1660 1.6 3.55 70
75 .1754 1.6 3.06 .1489 .9 3.32 .1396 1.8 3.45 75
80 .1510 1.8 2.98 .1266 1.0 3.23 .1178 2.1 3.36 80
85 .1305 2.0 2.90 .1081 1.1 3.14 .09991 2.3 3.28 85
90 .1131 2.3 2.83 .09262 1.2 3.06 .08507 2.5 3.20 90
95 .09846 2.5 2.76 .07970 1.3 2.98 .07273 2.8 3.12 95
100 .08597 2.7 2.69 .06885 1.5 2.91 .06241 3.0 3.04 100
105 .07531 2.9 2.63 .05969 1.6 2.83 .05376 3.3 2.96 105
110 .06618 3.1 2.56 .05194 1.7 2.76 .04648 3.5 2.89 110
115 .05834 3.4 2.50 .04535 1.8 2.69 .04032 3.8 2.82 115
120 .05158 3.6 2.44 .03973 2.0 2.63 .03510 4.1 2.76 120
125 .04573 3.8 2.39 .03491 2.1 2.56 .03065 4.3 2.69 125
130 .04066 4.0 2.33 .03077 2.2 2.50 .02685 4.6 2.63 130
135 .03625 4.3 2.28 .02721 2.3 2.44 .02359 4.8 2.57 135
140 .03240 4.5 2.23 .02412 2.5 2.39 .02079 5.1 2.51 140
145 .02903 4.7 2.18 .02145 2.6 2.33 .01838 5.4 2.45 145
150 .02608 5.0 2.13 .01912 2.7 2.28 .01629 5.6 2.40 150
Material code B (K)
TPA 4235 QA 4250 RA 4380 T
(°C) R (T) / R25 TF (%) α (%/°C) R (T) / R25 TF (%) α (%/°C) R (T) / R25 TF (%) α (%/°C) (°C)
- 55 123.3 8.3 8.00 101.8 8.3 7.36 110.7 8.6 7.53 - 55
- 50 84.31 7.2 7.71 71.33 7.2 7.13 77.22 7.4 7.29 - 50
- 45 58.37 6.2 7.43 50.51 6.2 6.91 54.43 6.4 7.07 - 45
- 40 40.92 5.3 7.17 36.14 5.3 6.70 38.76 5.5 6.85 - 40
- 35 29.03 4.5 6.92 26.11 4.5 6.50 27.86 4.6 6.65 - 35
- 30 20.83 3.8 6.69 19.05 3.8 6.31 20.22 3.9 6.46 - 30
- 25 15.10 3.2 6.46 14.02 3.2 6.12 14.81 3.3 6.27 - 25
- 20 11.07 2.6 6.25 10.41 2.6 5.85 10.94 2.7 6.09 - 20
- 15 8.189 2.1 6.05 7.791 2.1 5.78 8.143 2.2 5.92 - 15
- 10 6.117 1.7 5.85 5.879 1.7 5.62 6.112 1.8 5.76 - 10
- 5 4.610 1.3 5.67 4.470 1.3 5.46 4.622 1.4 5.60 - 5
03.504 1.0 5.49 3.424 1.0 5.31 3.522 1.0 5.45 0
52.686 .7 5.32 2.642 .7 5.17 2.702 .8 5.31 5
10 2.075 .5 5.16 2.052 .5 5.03 2.087 .5 5.17 10
15 1.615 .3 5.01 1.605 .3 4.90 1.623 .3 5.03 15
20 1.266 .1 4.86 1.263 .1 4.77 1.270 .1 4.91 20
25 1.0000 0.0 4.72 1.0000 0.0 4.65 1.0000 0.0 4.78 25
30 .7949 .1 4.58 .7965 .1 4.53 .7920 .1 4.66 30
35 .6359 .3 4.45 .6380 .3 4.42 .6308 .3 4.55 35
40 .5119 .4 4.32 .5139 .4 4.31 .5052 .5 4.43 40
45 .4145 .6 4.20 .4162 .6 4.20 .4068 .6 4.33 45
50 .3376 .8 4.09 .3388 .8 4.10 .3292 .8 4.22 50
55 .2765 1.0 3.98 .2771 1.0 4.00 .2678 1.0 4.12 55
60 .2276 1.2 3.87 .2278 1.2 3.90 .2189 1.3 4.02 60
65 .1883 1.4 3.77 .1881 1.4 3.81 .1797 1.5 3.93 65
70 .1566 1.7 3.67 .1560 1.7 3.72 .1483 1.7 3.84 70
75 .1308 1.9 3.58 .1300 1.9 3.63 .1228 2.0 3.75 75
80 .1098 2.1 3.48 .1088 2.1 3.55 .1022 2.2 3.67 80
85 .09258 2.4 3.40 .0914 2.4 3.47 .08537 2.5 3.58 85
90 .07838 2.6 3.31 .07708 2.6 3.39 .07160 2.7 3.50 90
95 .06662 2.9 3.23 .06527 2.9 3.31 .06029 3.0 3.42 95
100 .05686 3.1 3.15 .05547 3.2 3.24 .05095 3.2 3.35 100
105 .04871 3.4 3.07 .04731 3.4 3.17 .04322 3.5 3.28 105
110 .04189 3.7 3.00 .04049 3.7 3.10 .03679 3.8 3.21 110
115 .03614 3.9 2.93 .03478 3.9 3.03 .03143 4.1 3.14 115
120 .03130 4.2 2.86 .02996 4.2 2.96 .02693 4.3 3.07 120
125 .02719 4.5 2.79 .02590 4.5 2.90 .02316 4.6 3.01 125
130 .02370 4.7 2.73 .02246 4.7 2.84 .01997 4.9 2.94 130
135 .02072 5.0 2.67 .01953 5.0 2.78 .01728 5.2 2.88 135
140 .01817 5.3 2.61 .01704 5.3 2.72 .01499 5.4 2.82 140
145 .01598 5.5 2.55 .01490 5.5 2.67 .01305 5.7 2.77 145
150 .01410 5.8 2.49 .01307 5.8 2.61 .01138 6.0 2.71 150
4TPC
4TPC
Type Quantity/box
NJ28 2000
NI24 1000
• Bulk
PACKAGING
• Reel & Ammopack
NTC Accurate Leaded Thermistors
NI24 • NJ28
8 (.315)
30 (1.18)
Interlayer
Paper
42 (1.66)
Inside
48 (1.99)
Outside
31 (1.22)
360 (14.2)
TAPING CHARACTERISTICS
Missing components
A maximum of 3 consecutive components may be missing
from the bandolier, surrounded by at least 6 filled positions.
The number of missing components may not exceed 0.5%
of the total per packing module.
The beginning and the end of tape exhibit 8 or 9 blank
positions.
P
H
L
AMMOPACK REEL
LH P
330 (13.0) 46 (1.81) 290 (11.4)
hh
H1H1
H
P1
P0
P
d
W
E
t
AB
W2
W1
H0
E
I2
D0
p p
W0
A - B
Cross section
Direction of unreeling
Marking on
this side
Adhesive
tape
Reference plane
Value Tolerance Dimensions Characteristics
18 +1 / -0.5 W Leading tape width
6±0.3 W0Adhesive tape width
9+0.75 / -0.5 W1Sprocket hole position
3 max. W2Distance between the top of the tape and
the adhesive
4±0.2 D0Diameter of sprocket hole
16/19.5 ±0.5 H0Distance between the tape axis and the
seating plane of the component
H1Distance between the tape axis and the top
of component body
Value Tolerance Dimensions Characteristics
12.7 ±0.2 P0Sprocket holes pitch
254 ±1 – Distance between 21 consecutive holes
20 pitches
0.7 ±0.2 t Total thickness of tape
2.54 5.08 +0.6 ELead spacing
-0.1
5.08 3.85 ± 0.7 P1
Distance between the sprocket hole axis
and the lead axis
12.7 ±1.0 P Spacing of components
0.5 0.6 ±5% d Lead diameter
0±1.3 3PVerticality of components
0±2
3hAlignment of components
DIMENSIONS: millimeters (inches)
Types Suffix H or Ho Leads Quantity/Size Packaging
NJ28 CA 16 ± 0.5 Straight 3000 AMMOPACK
(0.630 ± 0.020)
CB 16 ± 0.5 Straight 3000 REEL
(0.630 ± 0.020)
CC 19.5 ± 0.5 Straight 3000 AMMOPACK
(0.768 ± 0.020)
CD 19.5 ± 0.5 Straight 3000 REEL
(0.768 ± 0.020)
millimeters (inches)
H
E
E: 2.54 -0.10 +0.60
(0.100 -0.004 +0.024)
