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82

SPM2007 (7/07)

1. The temperature of the component (ambient plus temperature rise)

must be within the stated operating temperature range.

2. The rated current is the current that will cause the temperature

of the part to increase by 40°C with 3.6 volt * µsec across the

component and 100LFM of forced air cooling.

3. To determine the inductance of a component at a different operating

current, use the graph below for the appropriate material type.

4. In high volt-µsec applications additional heating may occur due to

core losses in the inductor which may necessitate derating the

current in order to limit the temperature rise of the component. In

order to determine the approximate total losses (or temperature rise)

of the component in particular applications, the following formulas

can be used.

Estimated Temperature Rise:

Where

AirFlowFactor = 1 (no air flow), 0.53 (100LFM), 0.39 (200LFM), 0.35

(300LFM), 0.30 (400LFM)

Ω) / 1000

DCR_Typical (m

Ω) = .85 * DCR_Max(from table)

ΔB = K1 * Volt-µsec

Notes from Tables

Inductance vs Magnetizing Force

0

20

40

60

80

100

120

0

10 20304050 60708090 100 110 120

H-DC (Oe) = H1 * Current (A)

Material -8/90 (35µ)

Material -18 (55µ)

Material -52 (75µ)

THT POWER INDUCTORS

Toroid - Bare Coil Series

C

MAX

A

MAX

D

NOM

E

MAX

B

MAX

F

NOM

Mechanical

Schematic

Dimensions (in/mm)

Dimensions: Inches

mm

1

2

Part No.

A

B

C

D

E

F

PG0122

.807

.374

.748

.126

.098

.354

20,50

9,50

19,00

3,20

2,50

9,00

PG0123

.807

.413

.748

.126

.106

.354

20,50

10,50

19,00

3,20

2,68

9,00

PA0690

.625

.345

.545

.129

.052

.300

15,90

8,80

13,80

3,30

1,30

7,60

PA0235L

N/A

.400

.660

.150

.050

.300

10,20

16,80

3,80

1,30

7,60

PA0689

.625

.345

.545

.129

.052

.300

15,90

8,80

13,80

3,30

1,30

7,60

PA0430L

.874

.374

N/A

.250

N/A

.245

22,20

9,50

6,40

6,20

P1967L

.906

.492

.906

.130

.055

.300

23,00

12,50

23,00

3,30

1,40

7,60

PG0116

.571

.276

.571

.126

.041

.276

14,50

7,00

14,50

3,20

1,05

7,00

PA0489L

.604

.323

.556

.157

.048

.250

15,30

8,20

14,10

4,00

1,20

6,40

PG0112

.630

.374

.630

.126

.063

.295

16,00

9,50

16,00

3,20

1,60

7,50

P1715L

.610

.325

N/A

.130

.045

.300

15,50

8,30

3,30

1,10

7,60

PA0431L

.874

.374

N/A

.250

.054

.240

22,20

9,50

6,40

1,40

6,10

PA0432L

.980

.440

.980

.250

.054

.310

24,90

11,20

24,90

6,40

1,40

7,90