FR251 データシートの表示（PDF） - Leshan Radio Company,Ltd

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FR251

Fast Switching Rectifiers

Leshan Radio Company,Ltd 

LESHAN RADIO COMPANY, LTD.

4. Characteristic Curves ( TA = 25°C unless otherwise noted )

Fig. 1 – Forward Current Derating Curve

Fig. 2 – Maximum Non-repetitive Peak

Forward Surge Current

60 Hz

TJ = TJ max

Resistive or

8.3ms Single Half Sine-wave

2.5

Inductive Load

150

(JEDEC Method)

1.25

0.375" (9.5mm) Lead Length

0

0 25 50 75 100 125 150 175

Ambient Temperature, °C

Fig 3. – Typical Instantaneous Forward

100

Characteristics

TJ = 25°C

Pulse width = 300µs

10 1% Duty Cycle

1.0

0.1

0.01

0.6 0.8 1.0 1.2 1.4 1.6

Instantaneous Forward Voltage (V)

Fig 5. –typical transient thermal

impedance

100

10

1.0

0.1

0.01 0.1

1.0

10

100

t,Pulse duration,sec

75

0

1

10

100

Number of Cycles at 60Hz

Fig 4. – Typical Reverse Characteristics

100

Tj=125℃

10

Tj=75℃

1

Tj=25℃

0.1

0.01

0

20 40

60 80 100

Percent of Rated Peak Reverse Voltage (%)

Fig 6. – Typical Junction Capacitance

20

TJ = 25°C

f = 1.0 MHz

Vsig = 50mVp-p

10

1.0

0.1

1

10

Reverse Voltage (V)

100

2/3

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