Ch-technology 71HF(R) Series Manual do Utilizador descarregar pdf (Página 6)

Document Number: 93521 For technical questions, contact: ind-modules@vishay.com

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Revision: 20-Jun-08 5

70HF(R) Series

Standard Recovery Diodes

(Stud Version), 70 A

Vishay High Power Products

Fig. 8 - Forward Power Loss Characteristics

Fig. 9 - Maximum Non-Repetitive Surge Current

Fig. 10 - Maximum Non-Repetitive Surge Current

Fig. 11 - Forward Voltage Drop Characteristics

Fig. 12 - Thermal Impedance Z

thJC

Characteristics

0255075100125150

Maximum Allowable Ambient Temperature (°C)

100

120

020406080100120

180°

120°

90°

60°

30°

Average Forward Current (A)

RMS Limit

Maximum Average Forward Power Loss (W)

Conduction Period

70HF(R) Series

(1400V to 1600V)

T = 150°C

300

400

500

600

700

800

900

1000

1100

110100

Peak Hal f Sine Wave Forward Current (A)

Number Of Equal Amplitude Half Cycle Current Pulses (N)

70HF(R) Series

Initial T = T Max.

@ 60 Hz 0.0083 s

@ 50 Hz 0.0100 s

At Any Rated Load Condition And With

Rated V Applied Following Surge.

RRM

200

300

400

500

600

700

800

900

1000

1100

1200

0.01 0.1 1

Peak Half Sine Wave Forward Current (A)

Pulse Train Duration (s)

Maximum Non Repetitive Surge Current

70HF(R) Series

Initial T = T Max.

No Voltage Reapplied

Rated V Reapplied

RRM

Versus Pulse Train Duration.

100

1000

0 0.5 1 1.5 2 2.5 3

T = 25°C

Instantaneous Forward Current (A)

Instantaneous Forward Voltage (V)

T = T Max.

70HF(R) Series

0.001

0.01

0.1

0.0001 0.001 0.01 0.1 1 10

Square Wave Pulse Duration (s)

thJC

Transient Thermal Impedance Z (K/W)

Steady State Value

R = 0.45 K/W

(DC Operation)

thJC

70HF(R) Series

1 2 3 4 5 6 7 8 9 10

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