MUR820 datasheet(4/7 Pages) VISHAY

Part #	MUR820

Description	Ultrafast Rectifier, 8 A FRED PtTM

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Manufacturer	VISHAY [Vishay Siliconix]

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Document Number: 94523

4

Revision: 09-Apr-08

MUR820PbF

Vishay High Power Products

Ultrafast Rectifier,

8 A FRED PtTM

Fig. 5 - Maximum Allowable Case Temperature vs.

Average Forward Current

Fig. 6 - Forward Power Loss Characteristics

Fig. 7 - Typical Reverse Recovery Time vs. dIF/dt

Fig. 8 - Typical Stored Charge vs. dIF/dt

Note

(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;

Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);

PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = Rated VR

03

IF(AV) - Average Forward Current (A)

160

170

180

See note (1)

150

DC

140

130

69

Square wave (D = 0.50)

Rated V

R applied

12

06

IF(AV) - Average Forward Current (A)

0

D = 0.01

D = 0.02

D = 0.05

D = 0.10

D = 0.20

D = 0.50

DC

39

2

4

10

6

8

RMS limit

12

100

1000

dIF/dt (A/µs)

20

40

V

R = 160 V

T

J = 125 °C

T

J = 25 °C

30

50

10

I

F = 16 A

I

F = 8 A

I

F = 4 A

100

1000

dIF/dt (A/µs)

40

I

F = 16 A

I

F = 8 A

I

F = 4 A

200

120

V

R = 160 V

T

J = 125 °C

T

J = 25 °C

80

160

0

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