SM503J1KRA US Sensor, SM503J1KRA Datasheet - Page 45

• Manufacturer Part Number: SM503J1KRA
• Description: THERMISTOR NTC 50K OHM 10% SMD
• Manufacturer: US Sensor
• Series: SMr

Specifications of SM503J1KRA

• Resistance In Ohms @ 25°c: 50K
• Resistance Tolerance: ±10%
• B0/50: 3890K
• Mounting Type: Surface Mount
• Package / Case: MELF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• B Value Tolerance: -
• B25/50: -
• B25/75: -
• B25/85: -
• B25/100: -
• Operating Temperature: -
• Power - Max: -
• Lead Length: -
• Other names: 615-1035; SM503J1K

Temp. ˚C
R Ratio
R
0-50˚C
Curve
Type
Beta
-55
-54
-53
-52
-51
-50
-49
-48
-47
-46
-45
-44
-43
-42
-41
-40
-39
-38
-37
-36
-35
-34
-33
-32
-31
-30
-29
-28
-27
-26
-25
-24
-23
-22
-21
-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
0
/R
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
50
˚C
31.90
30.16
28.53
27.00
25.56
24.22
22.95
21.76
20.64
19.59
18.60
17.67
16.79
15.96
15.17
14.43
13.73
13.07
12.45
11.86
11.30
10.77
10.27
9.794
9.344
8.917
8.512
8.127
7.762
7.416
7.086
6.773
6.476
6.193
5.924
5.668
5.424
5.192
4.971
4.761
4.560
4.369
4.187
4.013
3.847
3.689
3.538
3.394
3.256
3.125
2.999
2.879
2.765
2.655
2.550
2.450
R
2941
5.29
T
B
/R
25
54.14
50.78
47.66
44.74
42.03
39.49
37.12
34.91
32.85
30.92
29.11
27.43
25.85
24.37
22.98
21.68
20.47
19.33
18.26
17.25
16.31
15.42
14.59
13.81
13.07
12.38
11.73
11.12
10.54
10.00
9.486
9.003
8.547
8.117
7.712
7.329
6.967
6.626
6.303
5.998
5.709
5.436
5.178
4.933
4.702
4.482
4.274
4.077
3.891
3.714
3.546
3.386
3.235
3.091
2.955
2.825
R
3420
6.94
T
F
/R
25
Resistance-Temperature Conversion Tables (Standard Curves)
60.78
56.96
53.40
50.09
47.00
44.12
41.44
38.93
36.59
34.40
32.36
30.45
28.67
27.00
25.43
23.97
22.60
21.31
20.11
18.98
17.92
16.93
15.99
15.12
14.29
13.52
12.79
12.11
11.46
10.86
10.29
9.749
9.242
8.765
8.315
7.891
7.491
7.113
6.757
6.420
6.102
5.801
5.517
5.249
4.995
4.754
4.527
4.311
4.108
3.914
3.731
3.558
3.393
3.237
3.089
2.949
R
3575
7.58
T
G
/R
25
96.38
89.53
83.21
77.38
71.99
67.02
62.42
58.16
54.22
50.58
47.20
44.07
41.16
38.47
35.97
33.65
31.49
29.49
27.62
25.88
24.27
22.76
21.36
20.05
18.83
17.70
16.64
15.64
14.72
13.85
13.04
12.28
11.58
10.91
10.29
9.708
9.162
8.650
8.170
7.719
7.296
6.898
6.525
6.174
5.844
5.533
5.241
4.966
4.707
4.463
4.233
4.016
3.812
3.619
3.437
3.265
R
3890
9.06
T
J
/R
25
119.70
110.95
102.90
95.47
88.63
82.31
76.48
71.10
66.13
61.54
57.29
53.36
49.72
46.35
43.23
40.34
37.66
35.17
32.86
30.71
28.72
26.87
25.15
23.54
22.05
20.67
19.37
18.17
17.05
16.00
15.02
14.11
13.26
12.47
11.73
11.03
10.38
9.774
9.206
8.673
8.175
7.708
7.270
6.860
6.475
6.114
5.774
5.456
5.157
4.876
4.612
4.363
4.130
3.910
3.703
3.508
R
10.44
4140
T
R
/R
25
44
1832 West Collins Avenue, Orange, CA 92867 • Tel. [phone] • Fax [phone] • www.ussensor.com
Temp. ˚C
R Ratio
R
0-50˚C
Curve
Type
Beta
0
/R
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
0
1
2
3
4
5
6
7
8
9
50
˚C
0.9676
0.9364
0.9063
0.8775
0.8497
0.8229
0.7971
0.7723
0.7484
0.7253
0.7031
0.6817
0.6611
0.6411
0.6219
0.6034
0.5855
0.5683
0.5516
0.5355
0.5200
0.5050
0.4905
0.4765
0.4630
2.450
2.357
2.268
2.183
2.101
2.023
1.949
1.878
1.810
1.744
1.682
1.622
1.565
1.510
1.457
1.406
1.358
1.311
1.267
1.224
1.183
1.143
1.105
1.069
1.034
1.000
R
2941
5.29
T
B
/R
25
0.9624
0.9263
0.8917
0.8587
0.8270
0.7967
0.7677
0.7398
0.7132
0.6876
0.6631
0.6396
0.6170
0.5954
0.5747
0.5547
0.5356
0.5172
0.4996
0.4827
0.4664
0.4507
0.4357
0.4212
0.4073
2.825
2.702
2.585
2.473
2.367
2.266
2.171
2.079
1.992
1.909
1.830
1.755
1.683
1.615
1.550
1.487
1.428
1.371
1.317
1.265
1.216
1.169
1.124
1.081
1.039
1.000
R
3420
6.94
T
F
/R
25
0.9602
0.9226
0.8866
0.8522
0.8194
0.7879
0.7579
0.7291
0.7016
0.6752
0.6500
0.6258
0.6027
0.5805
0.5592
0.5389
0.5194
0.5007
0.4827
0.4655
0.4490
0.4331
0.4179
0.4033
0.3893
2.949
2.816
2.689
2.569
2.454
2.346
2.243
2.144
2.051
1.962
1.878
1.798
1.721
1.648
1.579
1.513
1.450
1.390
1.333
1.278
1.226
1.177
1.129
1.084
1.041
1.000
R
3575
7.58
T
G
/R
25
0.9573
0.9166
0.8778
0.8409
0.8057
0.7722
0.7402
0.7098
0.6808
0.6531
0.6267
0.6015
0.5774
0.5545
0.5326
0.5116
0.4916
0.4725
0.4542
0.4368
0.4201
0.4041
0.3888
0.3742
0.3602
3.265
3.103
2.950
2.805
2.669
2.540
2.417
2.302
2.192
2.089
1.990
1.897
1.809
1.726
1.647
1.571
1.500
1.433
1.368
1.307
1.249
1.194
1.142
1.092
1.045
1.000
R
3890
9.06
T
J
/R
25
0.9548
0.9116
0.8706
0.8316
0.7946
0.7594
0.7260
0.6942
0.6640
0.6352
0.6078
0.5818
0.5570
0.5333
0.5108
0.4894
0.4690
0.4495
0.4309
0.4132
0.3963
0.3802
0.3648
0.3501
0.3361
3.508
3.324
3.151
2.988
2.834
2.689
2.553
2.423
2.302
2.186
2.078
1.975
1.878
1.786
1.699
1.617
1.539
1.466
1.396
1.330
1.268
1.208
1.152
1.099
1.048
1.000
R
10.44
4140
T
R
/R
25