FR251 - FR257-STR

FAST RECOVERY

RECTIFIER DIODES

PRV : 50 - 1000 Volts

Io : 2.5 Amperes

FEATURES :

* High current capability

* High surge current capability

* High reliability

* Low reverse current

* Low forward voltage drop

* Fast switching for high efficiency

MECHANICAL DATA :

* Case : D2A Molded plastic

* Epoxy : UL94V-O rate flame retardant

* Lead : Axial lead solderable per MIL-STD-202,

Method 208 guaranteed

* Polarity : Color band denotes cathode end

* Mounting position : Any

* Weight : 0.645 gram

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Rating at 25

Single phase, half wave, 60 Hz, resistive or inductive load.

For capacitive load, derate current by 20%.

SYMBOL

FR251 FR252 FR253 FR254 FR255 FR256 FR257

FR257

-STR

UNIT

Maximum Recurrent Peak Reverse Voltage

50

100

200

400

600

800

1000

1000

V

Maximum RMS Voltage

35

70

140

280

420

560

700

700

V

Maximum DC Blocking Voltage

50

100

200

400

600

800

1000

1000

V

Maximum Average Forward Current

0.375"(9.5mm) Lead Length

Ta = 55

°C

Peak Forward Surge Current,

8.3ms Single half sine wave Superimposed

on rated load (JEDEC Method)

1.3

V

Maximum DC Reverse Current

Ta = 25

°C

10

µA

at Rated DC Blocking Voltage

Ta = 100

°C

500

µA

Maximum Reverse Recovery Time ( Note 1 )

Trr

150

250

500

250

ns

Typical Junction Capacitance ( Note 2 )

28

pf

Junction Temperature Range

- 65 to + 150

°C

Storage Temperature Range

- 65 to + 150

°C

Notes :

Page 1 of 2

Rev. 01 : April 2, 2002

A

A

2.5

RATING

100

D2A

0.040 (1.02)

0.0385 (0.98)

1.00 (25.4)

MIN.

0.161 (4.1)

0.154 (3.9)

0.284 (7.2)

0.268 (6.8)

1.00 (25.4)

MIN.

Dimensions in inches and ( millimeters )