Additional Resources > Windchill Risk and Reliability Practitioner’s Guide > Data Tables > Stress Ratio for Electronic and Electro-Mechanical Components
Stress Ratio for Electronic and Electro-Mechanical Components
Table A-2. Capacitor, Fixed, Ceramic
Temp °C
0
25
50
65
75
100
125
140
150
Stress Ratio (Voltage)
0.0
.26
.27
.28
.29
.30
.32
.34
.36
.37
0.1
.27
.29
.30
.31
.32
.34
.36
.38
.39
0.2
.34
.36
.38
.39
.40
.43
.45
.45
.50
0.3
.50
.55
.59
.59
.64
.64
.68
.73
.76
0.4
.85
.91
1.00
1.00
1.05
1.09
1.18
1.23
1.23
0.5
1.45
1.55
1.64
1.73
1.73
1.86
1.95
2.05
2.09
0.6
2.32
2.50
2.64
2.73
2.77
2.95
3.14
3.27
3.32
0.7
3.55
3.77
4.00
4.14
4.27
4.50
5.00
5.00
5.00
0.75
4.21
4.53
4.86
4.94
5.20
5.35
5.84
6.03
6.03
0.8
5.00
5.45
5.91
5.91
6.36
6.36
6.82
7.27
7.27
0.9
7.27
7.73
8.18
8.64
8.64
9.09
10.00
10.00
10.45
1.0
10.00
10.45
10.91
11.36
11.82
12.73
13.18
13.64
14.08
Table A-3. Capacitor, Fixed, Glass
Temp °C
0
25
50
65
75
100
125
Stress Ratio (Voltage)
0.0
.04
.13
.38
.69
1.03
2.86
7.62
0.1
.05
.14
.39
.71
1.05
2.90
7.85
0.2
.05
.14
.40
.72
1.08
3.01
8.06
0.3
.05
.16
.44
.80
1.18
3.32
8.92
0.4
.08
.20
.35
1.00
1.51
4.09
10.75
0.5
.11
.28
.77
1.40
2.15
5.81
16.13
0.6
.16
.43
1.18
2.15
3.23
8.82
24.73
0.7
.25
.69
1.83
3.44
5.16
13.98
37.63
0.75
.32
.86
2.30
4.30
6.40
17.34
47.17
0.8
.39
1.06
2.90
5.38
7.96
21.51
59.14
0.9
.59
1.61
4.41
8.17
11.83
33.33
90.32
1.0
.88
2.37
6.56
11.83
18.28
49.46
129.03
Table A-4. Capacitor, Fixed, Electrolytic, Aluminium Oxide
Temp °C
0
25
50
65
75
100
125
Stress Ratio (Voltage)
0.0
.15
.23
.40
.65
.94
2.65
11.00
0.1
.15
.24
.42
.67
.97
2.78
11.67
0.2
.16
.25
.44
.72
1.00
3.06
12.73
0.3
.19
.28
.53
.81
1.17
3.33
13.89
0.4
.23
.36
.64
1.00
1.44
4.17
17.22
0.5
.31
.47
.83
1.33
1.89
5.56
22.78
0.6
.42
.64
1.17
1.83
2.58
7.50
30.56
0.7
.58
.89
1.58
2.50
3.61
10.56
41.57
0.75
.67
1.03
1.85
2.89
4.13
12.23
0.8
.78
1.19
2.17
3.33
4.72
14.17
0.9
1.06
1.58
2.78
4.44
6.39
1.0
1.39
2.11
3.89
6.11
8.61
Table A-5. Capacitor, Fixed, Mica
Temp °C
0
25
50
65
75
100
125
Stress Ratio (Voltage)
0.0
.03
.09
.25
.45
.60
1.80
3.50
0.1
.04
.10
.27
.50
.71
2.00
4.59
0.2
.04
.11
.30
.55
.86
2.21
5.06
0.3
.05
.14
.38
.69
1.07
2.86
6.47
0.4
.07
.19
.54
1.00
1.43
4.00
8.82
0.5
.11
.29
.79
1.43
2.14
5.93
13.53
0.6
.16
.43
1.14
2.14
3.21
10.71
19.41
0.7
.23
.62
1.71
3.14
4.64
15.71
28.82
0.75
.27
.73
2.04
3.73
5.41
18.65
34.15
0.8
.32
.86
2.43
4.43
6.57
22.14
40.59
0.9
.44
1.21
3.29
6.07
9.29
30.00
55.88
1.0
.59
1.64
4.43
7.86
12.14
40.71
76.47
Table A-6. Capacitor, Fixed, Mica Button
Temp °C
0
25
50
65
75
100
125
150
Stress Ratio (Voltage)
0.0
.40
.42
.44
.46
.48
.58
.76
1.15
0.1
.41
.44
.48
.51
.54
.66
.86
1.29
0.2
.46
.49
.53
.57
.61
.71
1.00
1.43
0.3
.58
.61
.67
.71
.79
.93
1.21
1.79
0.4
.79
.860
.93
1.00
1.07
1.29
1.71
2.50
0.5
1.21
1.29
1.36
1.50
1.57
1.93
2.50
3.71
0.6
1.79
1.86
2.07
2.21
2.36
2.86
3.79
5.50
0.7
2.57
2.71
3.00
3.21
3.43
4.14
5.43
7.86
0.75
3.06
3.23
3.52
3.83
4.08
4.930
6.53
9.47
0.8
3.64
3.86
4.14
4.57
4.86
5.86
7.86
11.43
0.9
5.07
5.36
5.86
6.29
6.64
7.86
10.71
15.71
1.0
6.79
7.14
7.86
8.57
9.29
10.71
14.29
20.71
Table A-7. Capacitor, Fixed, Tantalum - Non-solid, Solid and Foil
Temp °C
0
25
50
65
75
100
125
Stress Ratio (Voltage)
0.0
.29
.32
.40
.19
.57
1.12
3.63
0.1
.30
.33
.41
.50
.59
1.16
3.73
0.2
.33
.36
.46
.56
.66
1.30
4.08
0.3
.42
.47
.57
.70
.85
1.66
5.25
0.4
.59
.66
.80
1.00
1.17
2.31
7.23
0.5
.87
.95
1.17
1.45
1.77
3.43
10.85
0.6
1.30
1.44
1.77
2.15
2.62
5.08
15.94
0.7
1.84
2.12
2.58
3.12
3.77
7.32
0.75
2.21
2.51
3.01
3.72
4.46
8.66
0.8
2.65
2.96
3.62
4.43
5.27
10.25
0.9
3.65
4.00
4.96
6.08
7.23
14.29
1.0
4.92
5.38
6.73
8.09
10.00
Table A-8. Capacitor, Fixed, Paper or Plastic
Temp °C
0
25
50
65
75
100
125
Stress Ratio (Voltage)
0.0
.41
.41
.41
.45
.50
.91
5.00
0.1
.46
.46
.46
.50
.54
.96
5.38
0.2
.46
.46
.50
.54
.58
1.00
5.38
0.3
.54
.54
.58
.62
.69
1.19
6.54
0.4
.88
.88
.92
1.00
1.12
1.92
10.77
0.5
1.81
1.81
1.88
2.04
2.23
3.85
21.92
0.6
3.81
3.85
3.85
4.23
4.62
8.46
46.15
0.7
7.69
7.69
8.08
8.85
9.62
16.92
92.31
0.75
10.60
10.60
11.15
12.10
13.19
23.23
127.79
0.8
14.62
14.62
15.38
16.54
18.08
31.92
176.92
0.9
26.15
26.15
27.69
29.62
32.31
57.69
315.38
1.0
42.31
46.15
46.15
50.00
53.85
96.15
538.46
Table A-9. Capacitor, Variable, Ceramic
Temp °C
0
25
50
65
75
100
125
Stress Ratio (Voltage)
0.0
.04
.04
.05
.06
.09
.09
.25
0.1
.07
.07
.08
.09
.10
.14
.30
0.2
.14
.15
.17
.19
.21
.30
.67
0.3
.35
.37
.42
.47
.51
.77
1.65
0.4
.77
.79
.88
1.00
1.09
1.67
3.49
0.5
1.42
1.51
1.67
1.86
2.07
3.26
6.74
0.6
2.33
2.56
2.79
3.26
3.49
5.35
11.40
0.7
3.72
3.95
4.42
5.12
5.58
8.37
18.14
0.75
4.56
4.89
5.46
6.17
6.83
10.25
22.50
0.8
5.58
6.05
6.74
7.44
8.37
12.56
27.91
0.9
8.14
8.37
9.53
10.23
11.63
17.67
37.21
1.0
10.93
11.63
13.02
14.42
16.05
23.26
51.16
Table A-10. Capacitor, Variable, Glass
Temp °C
25
50
65
75
100
125
140
150
Stress Ratio (Voltage)
0.0
.10
.22
.35
.47
1.01
2.08
3.40
4.56
0.1
.11
.23
.36
.50
1.06
2.24
3.55
4.81
0.2
.13
.28
.44
.59
1.26
2.70
4.23
5.73
0.3
.19
.40
.62
.86
1.80
3.83
6.06
8.20
0.4
.30
.63
1.00
1.35
2.86
6.13
9.62
13.02
0.5
.47
1.01
1.61
2.17
4.61
10.09
15.49
20.97
0.6
.73
1.59
2.48
3.30
7.21
15.57
24.25
32.83
0.7
1.29
2.39
3.74
5.13
10.58
23.30
36.47
49.38
0.75
1.55
2.87
4.49
6.12
12.88
27.75
43.86
59.38
0.8
1.87
3.45
5.39
7.30
15.69
33.04
52.74
71.40
0.9
2.65
4381
7.65
10.44
21.91
47.39
73.62
99.68
1.0
3.57
6.52
10.35
13.91
29.67
63.91
99.70
135.00
Table A-11. Diode, Germanium, General Purpose
Temp °C
0
25
50
65
75
90
Stress Ratio (Voltage)
0.0
.01
.04
.10
.20
.31
.78
0.1
.02
.06
.17
.31
.48
1.19
0.2
.03
.09
.23
.43
.69
0.3
.04
.12
.31
.63
1.19
0.4
.06
.16
.43
1.00
0.5
.08
.21
.63
0.6
.11
.28
1.00
0.7
.14
.38
0.8
.19
.54
0.9
.25
.83
1.0
.34
1.50
Table A-12. Diode, Silicon, General Purpose, Power
Temp °C
0
25
50
65
75
100
125
140
150
Stress Ratio (Voltage)
0.0
.04
.07
.12
.15
.18
.34
.42
.59
1.21
0.1
.05
.09
.17
.22
.26
.41
.67
1.00
2.10
0.2
.07
.14
.22
.28
.35
.55
1.00
1.68
0.3
.11
.18
.28
.38
.45
.76
1.68
0.4
.15
.24
.38
.49
.60
1.16
0.5
.20
.32
.49
.67
.86
2.10
0.6
.26
.41
.67
1.00
1.37
0.7
.35
.55
1.00
1.68
0.8
.45
.76
1.68
0.9
.60
1.16
1.0
.86
2.10
Table A-13. Diode, Silicon, General Purpose, Signal/Low Power
Temp °C
0
25
50
65
75
100
125
140
150
160
Stress Ratio (Voltage)
0.0
.08
.14
.25
.34
.38
.68
.87
1.15
1.60
2.34
0.1
.09
.19
.34
.45
.53
.82
1.36
2.02
2.77
4.26
0.2
.14
.27
.45
.57
.64
1.06
2.02
3.40
0.3
.19
.36
.57
.77
.92
1.53
3.40
0.4
.25
.49
.77
1.00
1.21
2.34
0.5
.34
.64
1.00
1.36
1.74
4.26
0.6
.47
.83
1.36
2.02
2.77
0.7
.64
1.11
2.02
3.40
0.8
.83
1.53
3.40
0.9
1.13
2.34
1.0
1.49
4.26
Table A-14. Diode, Microwave Detectors and Mixers (Silicon)
Temp °C
0
25
50
65
75
100
125
135
Stress Ratio (Voltage)
0.0
.49
.52
.57
.63
.68
.73
.95
1.32
0.1
.54
.61
.68
.73
.78
.97
1.49
2.02
0.2
.57
.64
.72
.79
.85
1.14
2.29
0.3
.61
.68
.77
.87
.97
1.49
0.4
.64
.73
.85
1.00
1.14
2.29
0.5
.68
.78
.97
1.17
1.49
0.6
.73
.84
1.14
1.55
0.7
.78
.97
1.49
0.8
.86
1.14
2.29
0.9
.97
1.49
1.0
1.14
2.29
Table A-15. Diode, Microwave Detectors and Mixers (Germanium)
Temp °C
0
25
40
50
60
65
Stress Ratio (Voltage)
0.0
.43
.53
.66
.77
1.00
1.28
0.1
.45
.58
.73
.90
1.28
1.59
0.2
.45
.62
.78
1.07
1.59
0.3
.50
.66
.89
1.22
0.4
.51
.72
1.00
1.51
0.5
.53
.75
1.20
0.6
.55
.84
1.42
0.7
.59
.98
0.8
.63
1.12
0.9
.68
1.34
1.0
.73
1.65
Table A-16. Thyristor, Power
Temp °C
0
25
50
65
75
100
125
140
160
Stress Ratio (Voltage)
0.0
.04
.07
.12
.16
.20
.31
.51
.62
1.08
0.1
.05
.10
.17
.22
.28
.44
.75
1.00
1.83
0.2
.07
.13
.322
.30
.37
.60
1.00
1.58
0.3
.11
.18
.30
.40
.49
.83
1.58
0.4
.15
.25
.40
.54
.67
1.17
0.5
.20
.32
.54
.75
.92
1.83
0.6
.28
.44
.75
1.00
1.42
0.7
.37
.60
1.00
1.58
0.8
.49
.83
1.58
0.9
.67
1.17
1.0
.92
1.83
Table A-17. Thyristor, Signal/Low Power
Temp °C
0
25
50
65
75
100
125
140
160
Stress Ratio (Voltage)
0.0
.06
.14
.22
.29
.37
.59
.95
1.15
1.69
0.1
.09
.19
.31
.42
.51
.82
1.39
1.85
2.62
0.2
.14
.25
.42
.55
.68
1.11
1.85
2.92
0.3
.20
.34
.55
.74
.91
1.54
2.92
0.4
.28
.46
.74
1.00
1.25
2.15
0.5
.37
.60
1.00
1.39
1.69
3.38
0.6
.51
.82
1.38
1.85
2.62
0.7
.68
1.11
1.85
2.92
0.8
.91
1.53
2.92
0.9
1.25
2.15
1.0
1.69
3.39
Table A-18. Diode, Zener and Avalanche, Power
Temp °C
0
25
50
65
75
100
125
140
160
Stress Ratio (Voltage)
0.0
.21
.25
.31
.34
.37
.42
.57
.67
1.17
0.1
.24
.31
.38
.42
.46
.58
.79
1.00
1.80
0.2
.28
.35
.42
.48
.52
.68
1.00
1.50
0.3
.32
.39
.48
.55
.61
.86
1.50
0.4
.36
.44
.55
.64
.73
1.10
0.5
.41
.50
.64
.79
.94
1.80
0.6
.46
.58
.79
1.00
1.30
0.7
.52
.68
1.00
1.50
0.8
.61
.86
1.50
0.9
.73
1.10
1.0
.94
Table A-19. Diode, Zener and Avalanche, Signal/Low Power
Temp °C
0
25
50
65
75
100
125
140
150
160
Stress Ratio (Voltage)
0.0
.16
.39
.48
.53
.58
.67
.89
1.05
1.34
2.03
0.1
.38
.49
.59
.66
.72
.91
1.23
1.56
2.03
2.81
0.2
.44
.55
.66
.75
.81
1.06
1.56
2.34
0.3
.50
.61
.75
.86
.95
1.34
2.34
0.4
.56
.69
.86
1.00
1.14
1.72
0.5
.64
.78
1.00
1.23
1.47
2.81
0.6
.72
.91
1.23
1.56
2.03
0.7
.81
1.25
1.56
2.34
0.8
.95
1.34
2.34
0.9
1.14
1.78
1.0
1.47
2.81
Table A-20. Diode, Varactor, Step Recovery or Tunnel
Temp °C
0
25
50
65
75
100
125
140
150
160
Stress Ratio (Voltage)
0.0
.21
.28
.39
.45
.51
.64
.85
1.04
1.44
1.96
0.1
.26
.36
.49
.57
.66
.87
1.26
1.64
2.13
2.95
0.2
.33
.44
.57
.69
.77
1.06
1.64
2.46
0.3
.39
.52
.69
.82
.92
1.38
2.46
0.4
.46
.61
.82
1.00
1.15
1.80
0.5
.56
.72
1.00
1.26
1.52
2.95
0.6
.66
.87
1.26
1.64
2.13
0.7
.77
1.06
1.64
2.46
0.8
.92
1.38
2.46
0.9
1.14
1.80
1.0
1.52
2.95
Table A-21. Resistor, Fixed, Composition
Temp °C
0
25
50
65
75
100
120
Stress Ratio (Voltage)
0.0
.043
.054
.24
.40
.58
1.48
3.1
0.1
.050
.13
.31
.54
.78
1.85
3.85
0.2
.064
.16
.39
.66
.92
2.35
0.3
.071
.19
.47
.78
1.21
2.92
0.4
.086
.22
.57
1.00
1.42
3.71
0.5
.11
.27
.70
1.21
1.78
4.64
0.6
.12
.32
.86
1.50
2.21
0.7
.13
.39
1.00
1.85
2.78
0.8
.17
.46
1.29
2.28
3.42
0.9
.20
.56
1.50
2.78
4.21
1.0
.24
.67
1.86
3.42
Table A-22. Resistor, Fixed, Film
Temp °C
0
20
50
65
75
100
125
140
160
170
Stress Ratio (Voltage)
0.0
.34
.39
.54
.60
.66
.81
1.03
1.16
1.39
1.55
0.1
.38
.46
.60
.69
.75
.94
1.19
1.38
1.63
1.81
0.2
.42
.51
.69
.81
.88
1.06
1.38
1.63
1.94
0.3
.46
.57
.75
.88
1.00
1.25
1.63
1.88
2.25
0.4
.51
.63
.88
1.00
1.13
1.44
1.88
2.19
0.5
.57
.69
.94
1.13
1.25
1.63
2.13
2.50
0.6
.63
.81
1.06
1.31
1.44
1.88
2.50
2.94
0.7
.69
.88
1.25
1.44
1.63
2.19
2.88
3.38
0.8
.75
1.00
1.38
1.63
1.88
2.50
3.31
0.9
.88
1.06
1.56
1.88
2.13
2.81
3.81
1.0
.94
1.19
1.75
2.13
2.38
3.25
4.44
Table A-23. Resistor, Fixed, Film (Power)
Temp °C
0
30
50
65
80
100
130
150
180
210
Stress Ratio (Voltage)
0.0
.69
.71
.75
.78
.78
.80
.88
.96
1.04
1.20
0.1
.71
.75
.78
.80
.80
.88
.96
1.04
1.12
1.28
0.2
.74
.79
.80
.88
.88
.96
1.04
1.12
1.20
0.3
.78
.80
.88
.92
.96
1.04
1.12
1.20
0.4
.80
.88
.96
1.00
1.04
1.12
1.20
1.36
0.5
.88
.96
1.04
1.08
1.12
1.20
1.36
0.6
.96
1.04
1.12
1.16
1.20
1.36
0.7
1.04
1.12
1.20
1.28
1.36
0.8
1.12
1.20
1.28
0.9
1.20
1.36
1.0
1.28
Table A-24. Resistor, Fixed, Wirewound, Precision
Temp °C
0
25
50
65
75
100
125
135
140
Stress Ratio (Voltage)
0.0
.60
.62
.65
.68
.72
.95
1.05
2.08
2.30
0.1
.62
.64
.70
.74
.79
1.04
1.68
2.26
2.64
0.2
.66
.68
.74
.81
.87
1.13
1.87
2.45
3.02
0.3
.70
.75
.81
.89
.96
1.28
2.08
2.83
0.4
.77
.83
.92
1.00
1.09
1.47
2.45
3.40
0.5
.85
.92
1.04
1.15
1.26
1.74
3.02
3.96
0.6
.94
1.06
1.21
1.34
1.49
2.08
3058
0.7
1.08
1.21
1.42
1.58
1.77
2.45
4.53
0.8
1.23
1.40
1.66
1.89
2.08
3.02
5.66
0.9
1.42
1.64
2.08
2.26
2.64
3.77
7.17
1.0
1.62
1.89
2.45
2.83
3.21
4.91
9.25
Table A-25. Resistor, Fixed, Wirewound, Power
Temp °C
0
20
40
65
80
100
130
160
200
250
300
Stress Ratio (Voltage)
0.0
.22
.26
.30
.35
.41
.48
.52
.78
1.30
2.60
4.50
0.1
.29
.33
.39
.47
.54
.64
.83
1.17
1.79
3.24
6.28
0.2
.35
.47
.49
.61
.69
.83
1.17
1.59
2.55
4.14
0.3
.43
.51
.61
.79
.90
1.10
1.52
2.21
3.59
6.90
0.4
.52
.63
.76
1.00
1.17
1.45
2.07
2.97
5.20
0.5
.64
.76
.96
1.27
1.52
1.93
2.76
4.14
0.6
.76
.96
1.24
1.62
1.93
2.55
3.72
0.7
.96
1.17
1.52
2.07
2.55
3.31
0.8
1.17
1.52
1.93
2.69
3.31
0.9
1.45
1.86
2.41
1.0
1.72
2.28
Table A-26. Resistor, Variable, Wirewound
Temp °C
0
25
50
65
75
100
125
140
Stress Ratio (Voltage)
0.0
.37
.43
.54
.60
.68
.96
1.53
2.20
0.1
.40
.45
.59
.68
.77
1.09
1.77
2.55
0.2
.44
.55
.64
.77
.86
1.27
2.05
0.3
.50
.59
.73
.86
1.00
1.45
2.68
0.4
.55
.64
.82
1.00
1.14
1.68
0.5
.59
.73
.91
1.09
1.27
1.91
0.6
.68
.82
1.05
1.27
1.45
2.18
0.7
.73
.91
1.18
1.41
1.64
2.50
0.8
.82
1.00
1.32
1.59
1.86
0.9
.91
1.14
1.50
1.82
2.14
1.0
1.00
1.27
1.68
2.05
2.41
Table A-27. Resistor, Variable, Wirewound Precision
Temp °C
0
25
50
65
75
100
125
140
Stress Ratio (Voltage)
0.0
.43
.53
.65
.78
.83
1.12
1.80
2.45
0.1
.45
.55
.68
.82
.91
1.27
2.00
2.73
0.2
.50
.59
.73
.86
1.00
1.41
2.27
0.3
.50
.59
.77
.95
1.09
1.59
2.64
0.4
.55
.64
.82
1.00
1.18
1.77
0.5
.55
.68
.91
1.09
1.27
2.00
0.6
.55
.73
.95
1.18
1.36
2.23
0.7
.59
.73
1.00
1.27
1.50
2.45
0.8
.29
.77
1.09
1.36
1.64
0.9
.64
.82
1.18
1.50
1.77
1.0
.64
.86
1.23
1.59
1.95
Table A-28. Resistor, Variable, Composition
Temp °C
0
20
40
50
65
80
100
115
Stress Ratio (Voltage)
0.0
.42
.44
.48
.52
.60
.71
.98
1.78
0.1
.43
.46
.52
.57
.67
.84
1.33
2.22
0.2
.44
.49
.57
.62
.76
1.00
1.75
0.3
.48
.52
.62
.70
.87
1.17
2.06
0.4
.49
.56
.68
.78
1.00
1.40
2.54
0.5
.51
.59
.75
.86
1.14
1.59
0.6
.54
.63
.81
.95
1.30
1.90
0.7
.56
.67
.89
1.06
1.49
2.38
0.8
.59
.71
.97
1.17
1.75
2.70
0.9
.60
.76
1.06
1.48
1.90
1.0
.63
.81
1.16
1.59
2.22
Table A-29. Transistor, Field Effect
Temp °C
0
25
50
65
75
100
125
140
150
160
Stress Ratio (Voltage)
0.0
.22
.28
.40
.46
.51
.63
.86
1.15
1.47
1.88
0.1
.27
.35
.50
.59
.65
.85
1.26
1.71
2.24
2.84
0.2
.32
.44
.59
.68
.76
1.06
1.71
2.59
0.3
.38
.53
.68
.82
.91
1.38
2.59
0.4
.47
.62
.82
1.00
1.15
1.94
0.5
.56
.71
1.00
1.26
1.53
2.94
0.6
.65
.85
1.26
1.71
2.24
0.7
.76
1.06
1.71
2.59
0.75
.83
1.20
2.14
0.8
.91
1.38
2.59
0.9
1.15
1.94
1.0
1.53
2.94
Table A-30. Transistor, Germanium (NPN and PNP)
Temp °C
0
25
50
65
75
85
90
Stress Ratio (Voltage)
0.0
.06
.11
.20
.30
.40
.59
.74
0.1
.08
.14
.26
.41
.57
.90
1.18
0.2
.09
.18
.33
.52
.79
1.39
0.3
.11
.21
.41
.70
1.17
0.4
.14
.25
.52
1.00
0.5
.16
.31
.70
0.6
.20
.38
1.00
0.7
.24
.47
0.75
.26
.55
0.8
.28
.64
0.9
.34
.90
1.0
.43
1.38
Table A-31. Transistor, Silicon, Power (NPN and PNP)
Temp °C
0
25
50
65
75
100
125
140
160
Stress Ratio (Voltage)
0.0
.12
.16
.22
.25
.28
.35
.51
.67
1.10
0.1
.15
.21
.28
.32
.37
.48
.73
1.00
1.75
0.2
.19
.25
.32
.40
.44
.63
1.00
1.50
0.3
.22
.30
.40
.47
.54
.82
1.50
0.4
.27
.35
.47
.58
.67
1.15
0.5
.31
.41
.58
.73
.89
1.75
0.6
.37
.48
.73
1.00
1.28
0.7
.44
.63
1.00
1.50
0.8
.54
.82
1.50
0.9
.67
1.15
1.0
.89
1.75
Table A-32. Transistor, Silicon, Signal/Low Power (NPN and PNP)
Temp °C
0
25
50
65
75
100
125
140
160
Stress Ratio (Voltage)
0.0
.21
.28
.39
.44
.50
.61
.88
1.15
1.85
0.1
.26
.36
.49
.56
.64
.84
1.25
1.73
3.02
0.2
.32
.43
.56
.69
.76
1.09
1.73
2.60
0.3
.38
.52
.69
.81
.93
1.42
2.60
0.4
.46
.60
.81
1.00
1.14
1.98
0.5
.54
.71
1.00
1.26
1.54
3.02
0.6
.64
.84
1.25
1.73
2.22
0.7
.76
1.09
1.73
2.60
0.75
.84
1.25
2.15
0.8
.93
1.42
2.60
0.9
1.17
1.98
1.0
1.54
3.02
Table A-33. Transistor, Unijunction
Temp °C
0
25
50
65
75
100
125
140
150
160
Stress Ratio (Voltage)
0.0
.11
.17
.28
.35
.42
.58
.91
1.26
1.58
2.09
0.1
.15
.23
.37
.47
.56
.84
1.35
1.93
2.56
3.49
0.2
.20
.30
.47
.61
.72
1.09
1.93
3.02
0.3
.26
.40
.61
.77
.91
1.49
3.02
0.4
.35
.51
.77
1.00
1.21
2.21
0.5
.44
.65
1.00
1.35
1.70
3.49
0.6
.56
.84
1.35
1.93
2.56
0.7
.72
1.09
1.93
3.02
0.75
.81
1.26
2.42
0.8
.91
1.49
3.02
0.9
1.21
2.21
1.0
1.70
3.49
Table A-34. Relays
Temp °C
0
25
50
65
70
85
100
125
Component
Relay
Rated 85°C
0.51
0.61
0.74
1.00
1.13
2.15
Rated 125°C
0.68
0.79
0.88
1.00
1.05
1.29
1.73
4.13
Table A-35. Synchros and Resolvers
Frame Temp °C
0
25
50
65
75
100
125
135
Component
Synchros and Receivers
0.45
0.51
0.70
1.00
1.36
4.26
28.0
79.0