FR257-B

更新时间： 2024-02-28 16:08:12

品牌	Logo	应用领域
RECTRON		整流二极管快速恢复二极管
页数	文件大小	规格书
2页	28K
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FR257-B 数据手册

FR251

THRU

FR257

RECTRON

SEMICONDUCTOR

TECHNICAL SPECIFICATION

FAST RECOVERY RECTIFIER

VOLTAGE RANGE 50 to 1000 Volts CURRENT 2.5 Amperes

FEATURES

* Fast switching

* Low leakage

* Low forward voltage drop

* High current capability

* High current surge

* High reliability

R-3

MECHANICAL DATA

* Case: Molded plastic

* Epoxy: Device has UL flammability classification 94V-O

* Lead: MIL-STD-202E method 208C guaranteed

* Mounting position: Any

(

)

.042 1.1

DIA.

(

)

.040 1.0

(

)

1.0 25.4

MIN.

* Weight: 0.54 gram

(

)

.160 4.1

(

)

.138 3.5

(

)

.160 4.1

DIA.

(

)

.138 3.5

(

)

1.0 25.4

MIN.

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25 ^oC ambient temperature unless otherwise specified.

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

For capacitive load, derate current by 20%.

Dimensions in inches and (millimeters)

MAXIMUM RATINGS (At T

= 25^oC unless otherwise noted)

RATINGS

SYMBOL

FR251 FR252 FR253 FR254 FR255 FR255P FR256 FR257 FR257P UNITS

Maximum Recurrent Peak Reverse Voltage

Maximum RMS Voltage

RRM

RMS

100

200

140

200

400

280

400

600

420

600

420

600

800

560

800

1000 1000 Volts

700

Volts

100

1000 1000

Maximum DC Blocking Voltage

Maximum Average Forward Rectified Current

2.5

Amps

at TA

= 75^oC

Peak Forward Surge Current 8.3 ms single half sine-wave

superimposed on rated load (JEDEC method)

FSM

150

Typical Junction Capacitance (Note 2)

⁰C

Operating and Storage Temperature Range

, TSTG

-65 to + 150

ELECTRICAL CHARACTERISTICS (At TA

= 25^oC unless otherwise noted)

CHARACTERISTICS

Maximum Instantaneous Forward Voltage at 2.5A DC

Maximum DC Reverse Current

SYMBOL

FR251 FR252 FR253 FR254 FR255 FR255P FR256 FR257 FR257P UNITS

1.3

Volts

5.0

uAmps

at Rated DC Blocking Voltage T

Maximum Full Load Reverse Current Average,

Full Cycle .375” (9.5mm) lead length at T

= 55^oC

Maximum Reverse Recovery Time (Note 1)

NOTES : 1. Test Conditions: I = 0.5A, I = -1.0A, IRR = -0.25A

2. Measured at 1 MH and applied reverse voltage of 4.0 volts

= 25^oC

100

250

uAmps

trr

150

500

250

nSec

2001-5

中文翻译

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