FR251(G) [LGE]

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型号：	FR251(G)
厂家：	LGE
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FR251-FR257

Fast Recovery Rectifiers

VOLTAGE RANGE: 50 --- 1000 V

CURRENT: 2.5 A

R - 3

Features

Low cost

Diffused junction

Low leakage

Low forward voltage drop

High current capability

Easily cleaned with Freon,Alcohol,Isopropanol

and similar solvents

The plastic material carries U/L recognition 94V-0

Mechanical Data

Dimensions in millimeters

Case:JEDEC R--3,molded plastic

Polarity: Color band denotes cathode

Weight:0.021 unces,0.58 grams

Mounting position: Any

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25 ambient temperature unless otherwise specified.

Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by20%.

251

252

253

254

255

256

257

UNITS

Maximum recurrent peak reverse voltage

Maximum RMS voltage

100

200

140

200

400

280

400

600

420

600

800

560

800

1000

700

V_RRM

V_RMS

V_DC

Maximum DC blocking voltage

100

1000

Maximum average forw ard rectified current

2.5

I_F(AV)

9.5mm lead length,

@T_A=75

Peak forw ard surge current

I_FSM

150.0

1.3

8.3ms single half-sine-w ave

superimposed on rated load @T_J=125

Maximum instantaneous forw ard voltage

@ 2.5 A

V_F

I_R

Maximum reverse current

@T_A=25

5.0

at rated DC blocking voltage @T_A=100

Maximum reverse recovery time (Note1)

100.0

150

250

500

t_rr

Typical junction capacitance

Typical thermal resistance

(Note2)

(Note3)

C_J

R_θ

/ W

Operating junction temperature range

- 55---- +150

- 55---- + 150

T_J

Storage temperature range

T_STG

NOTE:1. Measured with I_F=0.5A, I_R=1A, I_rr=0.25A.

2. Measured at 1.0MHz and applied reverse v oltage of 4.0V DC.

3. Thermal resistance f rom junction to ambient.

http://www.lgesemi.com

mail:lge@lgesemi.com

Revision:20170701-P1

FR251-FR257

Ratings AND Charactieristic Curves

FIG.1 -- TYPICAL FORWARD DERATING CURVE

FIG.2-- FORWARD SURGE CURRENT

2.5

2.0

1.5

150

TJ=125

8.3ms Single Half

Sine-Wave

125

100

1.0

Single Phase

Half Wave 60H

Resistive or

Inductive Load

0.5

8 10

40 60

100

125

150

175

AMBIENT TEMPERATURE,

FIG.3--TYPICAL JUNCTION CAPACITANCE

NUMBEROFCYCLESAT60Hz

FIG.4 --TYPICAL FORWARD CHARACTERISTIC

100

TJ=25

Pulse Width=300µS

1.0

0.4

0.2

0.1

TJ=25

f=1MHz

0.06

0.04

0.02

0.01

1.0

100

0.6 0.8

1.0

1.2

1.4 1.6

1.8

2.0

REVERSEVOLTAGE,VOLTS

INSTANTANEOUS FORWARD VOLTAGE,VOLTS

FIG.5 -- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM

t^rr

N.1.

+0.5A

D.U.T.

(

- )

(+)

PULSE

50VDC

(APPROX)

(-)

GENERATOR

(NOTE2)

-0.25A

OSCILLOSCOPE

(NOTE 1)

(

+ )

N.1.

-1.0A

1cm

NOTES:1. RISE TIME =7ns MAX. INPUT IMPEDANCE=1M .22pF

2.RISETIME=10ns MAX. SOURCEIMPEDANCE=5O

SETTIMEBASEFOR50/100ns /cm

http://www.lgesemi.com

mail:lge@lgesemi.com

Revision:20170701-P1

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