FEATURES

Low cost

Diffused junction

Low leakage

Low forward voltage drop

High current capability

and similar solvents

MECHANICAL DATA

Case:JEDEC R--3,molded plastic

Terminals: Axial lead ,solderable per

MIL- STD-202,Method 208

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 by 20%.

FR

253

FR

254

FR

255

FR

256

FR

257

UNITS

Maximum recurrent peak reverse voltage

200

400

600

800

1000

V

Maximum RMS voltage

140

280

420

560

700

V

Maximum DC blocking voltage

200

400

600

800

1000

V

Maximum average forw ard rectified current

9.5mm lead length,

@T

Peak forw ard surge current

8.3ms single half-sine-w ave

superimposed on rated load

@T

Maximum instantaneous forw ard voltage

@ 2.5 A

V

Maximum reverse current

@T

at rated DC blocking voltage

@T

Maximum reverse recovery time (Note1)

250

ns

Typical junction capacitance

(Note2)

pF

Typical thermal resistance

(Note3)

／Ｗ

Operating junction temperature range

Storage temperature range

NOTE:1. Measured with I

500

VOLTAGE RANGE: 50 --- 1000 V

CURRENT:

2.5 A

100

FR

252

2.5

A

FAST RECOVERY RECTIFIERS

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

150.0

5.0

100.0

1.3

70

A

3. Thermal resistance f rom junction to ambient.

A

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

- 55---- +150

- 55---- + 150

35

150

22

FR251---FR257

R - 3

50

35

50

FR

251

Easily cleaned with Freon,Alcohol,Isopropanol

100

Dimensions in millimeters

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