BY251 查看數據表（PDF） - TSC Corporation

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BY251

3.0 AMPS. Silicon Rectifiers

TSC Corporation 

BY251 THRU BY255

Features

3.0 AMPS. Silicon Rectifiers

Voltage Range

200 to 1300 Volts

Current

3.0 Amperes

DO-201AD

Low forward voltage drop

High current capability

High reliability

High surge current capability

Mechanical Data

Cases: Molded plastic

Epoxy: UL 94V-O rate flame retardant

Lead: Axial leads, solderable per MIL-

STD-202, Method 208 guaranteed

Polarity: Color band denotes cathode end

High temperature soldering guaranteed:

260oC/10 seconds/.375”,(9.5mm) lead

lengths at 5 lbs., (2.3kg) tension

Weight: 1.2 grams

Dimensions in inches and (millimeters)

Maximum Ratings and Electrical Characteristics

Rating at 25℃ambient temperature unless otherwise specified.

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

For capacitive load, derate current by 20%

Type Number

Symbol BY251 BY252 BY253 BY254 BY255 Units

Maximum Recurrent Peak Reverse Voltage

Maximum RMS Voltage

Maximum DC Blocking Voltage

Maximum Average Forward Rectified

Current . 375 (9.5mm) Lead Length

@TA = 75℃

Peak Forward Surge Current, 8.3 ms Single

Half Sine-wave Superimposed on Rated

Load (JEDEC method )

Maximum Instantaneous Forward Voltage

@ 3.0A

VRRM

VRMS

VDC

I(AV)

IFSM

VF

200

140

200

400

280

400

600

420

600

3.0

150

1.0

800 1300 V

560 910 V

800 1300 V

A

A

V

Maximum DC Reverse Current @ TA=25℃

at Rated DC Blocking Voltage @ TA=100℃

IR

5.0

uA

100

uA

Maximum Full Load Reverse Current, Full

Cycle Average .375”(9.5mm) Lead Length

HTIR

30

uA

@TL=75℃

Typical Junction Capacitance ( Note 1 )

Cj

40

pF

Typical Thermal Resistance ( Note 2 )

RθJA

40

℃/W

Operating Temperature Range

TJ

-65 to +150

℃

Storage Temperature Range

TSTG

-65 to +150

℃

Notes: 1. Measured at 1 MHz and Applied Reverse Voltage of 4.0 V D.C.

2. Mount on Cu-Pad Size 16mm x 16mm on P.C.B.

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