Application • High power switching power supplies, Power conversion, UPS power. • High power battery charger, electric vehicle battery charger. • High power LED light, high power electronic energy saving lamps and other lamps.
Characteristics • Small size, high power, reliable surge current protection. • High material constant (B value), • Low residual resistance • High steady state current, long lasting, high reliability • Convenient for PCB installation, wide operating range
Specification
Dimensions
D15
D20
D25
D30
D35
Chip Dimensions
ø 15
ø 20
ø 25
ø 30
ø 35
(Dmax) Overall Diameter (mm)
17.5
22.5
29
36
41
(Tmax) Thickness (mm)
6
7
8
8.5
10
(F ± 1.5) Pitch (mm)
7.5
10.0
10.0
10.0
* 18
18
> Add suffix “Pxx” to specify the Pitch (F) or
> “Dxx” for Diameter of the leads (d)
(d ± 0.05) Dia of Leads (mm)
0.8
1.0
1.0
1.2
* 1.6
1.8
*2.0
(L) min Length of Leads (mm)
25
25
25
25
25
(L1) min Length of Leads (mm)
17
17
17
Standard Leads Figure
(I) Inside kink
(II) Straight
(II) Straight
(II) Straight
(II) Straight
> Add suffix “L” + figure # to part number to specify optional leads
Optional Leads Figure
(II) Straight
(III) Outside kink
(III) Outside kink
Weight (g). Approx
3.1
6.2
8.8
20.5
28.8
Illustration:In general, the long bent lead wire is used, see figure II * Standard
Technical Specifications Working Temperature: -55~200†C
Part NO. MF73T-1
Res +20% (Ω)
Max. Steady State Current lmax (A)
Approx. R of MaxCurrent Rmax (Ω)
ø15mm Chip Diameter Max Rated Power Pmax (W): 3.5 Dissipation Coefficient (mW/†C): ≥ 22 Thermal Time Constant (S): ≤ 75
1.3/10
1.3
10
0.034
1.5/10
1.5
10
0.036
2.5/9.5
2.5
9.5
0.044
5/8
5
8
0.058
6/7
6
7
0.069
7/7
7
7
0.078
8/7
8
7
0.084
10/7
10
7
0.098
12/6
12
6
0.116
15/6
16
6
0.129
20/6
20
6
0.136
30/5
30
5
0.165
47/4
47
4
0.257
120/2.5
120
2.5
0.652
Part NO. MF73T-1
Res +20% (Ω)
Max. Steady State Current lmax (A)
Approx. R of MaxCurrent Rmax (Ω)
ø20mm Chip Diameter Max Rated Power Pmax (W): 5.0 Dissipation Coefficient (mW/†C): ≥ 28 Thermal Time Constant (S): ≤ 110
0.7/16
0.7
16
0.026
1/16
1
16
0.027
1.5/15
1.5
15
0.030
2/14
2
14
0.035
2.5/13
2.5
13
0.038
3/12
3
12
0.040
4/12
4
12
0.043
4.7/12
4.7
12
0.046
5/12
5
12
0.047
6/11
6
11
0.052
6.8/10
6.8
10
0.055
7/9
7
9
0.056
10/8
10
8
0.085
12/7.5
12
7.5
0.098
15/7
15
7
0.112
18/7
18
7
0.123
20/7
20
7
0.132
Part NO. MF73T-1
Res +20% (Ω)
Max. Steady State Current lmax (A)
Approx. R of MaxCurrent Rmax (Ω)
ø25mm Chip Diameter Max Rated Power Pmax (W): 7.0 Dissipation Coefficient (mW/†C): ≥ 30 Thermal Time Constant (S): ≤ 130
0.5/22
0.5
22
0.017
0.7/22
0.7
22
0.017
1/20
1
20
0.021
1.5/19
1.5
19
0.024
2/18
2
18
0.026
2.5/16
2.5
16
0.029
3/15.5
3
15.5
0.032
4/15
4
15
0.039
4.7/14
4.7
14
0.044
5/14
5
14
0.047
6.8/12
6.8
12
0.061
7/11
7
11
0.064
8/10
8
10
0.079
10/10
10
10
0.084
12/9
12
9
0.102
15/8
15
8
0.117
18/8
18
8
0.132
20/8
20
8
0.132
Part NO. MF73T-1
Res +20% (Ω)
Max. Steady State Current lmax (A)
Approx. R of MaxCurrent Rmax (Ω)
ø30mm Chip Diameter Max Rated Power Pmax (W): 8.0 Dissipation Coefficient (mW/†C): ≥ 40 Thermal Time Constant (S): ≤ 190
0.5/30
0.5
30
0.013
1/30
1
30
0.014
1.5/25
1.5
25
0.016
2/23
2
23
0.019
2.5/20
2.5
20
0.023
3/19.5
3
19.5
0.026
4/19
4
19
0.031
4.7/18
4.7
18
0.035
5/17
5
17
0.037
6.8/16
6.8
16
0.043
7/15
7
15
0.044
8/14
8
14
0.049
10/13
10
13
0.056
12/12
12
12
0.067
15/11
15
11
0.078
18/10
18
10
0.092
29/9
20
9
0.113
Part NO. MF73T-1
Res +20% (Ω)
Max. Steady State Current lmax (A)
Approx. R of MaxCurrent Rmax (Ω)
ø35mm Chip Diameter Max Rated Power Pmax (W): 9.0 Dissipation Coefficient (mW/†C): ≥ 55 Thermal Time Constant (S): ≤ 280