Shanghai Lunsure Electronic
Technology Co.,LTD
Tel:0086-21-37185008
Fax:0086-21-57152769
ARL251/ARSL251
THRU
ARL256/ARSL256
BUTTON DIODES
VOLTAGE RANGE
100 TO 600 VOLTS
CURRENT 25AMPS
AR
.051(1.3)
DIA
.047(1.2)
.051(1.3)
ARSL
DIA
.047(1.2)
Features
Low leakage
Low forward voltage drop
High current capability
High forward surge current capability
Mechanical Data
.185(4.7)
.165(4.2)
.185(4.7)
.165(4.2)
Case: transfer molded plastic
Technology: button with vcauum soldered
Epoxy: UL94V-0 rate flame retardant
Max28.0mm
Polarity: color ring denotes cathode
Min25.4mm
Lead: Plated lead, solderable per MIL-STD-202E method 208C
Mounting position: Any
Weigth: ARL 2.70 grams, ARSL 2.60 grams
.250(6.4)
.235(6.0)
Max28.0mm
Min25.4mm
.250(6.4)
.235(6.0)
.410(10.4)
DIA
.380( 9.7)
.225(5.7)
DIA
.215(5.5)
.225(5.7)
DIA
.215(5.5)
.346(8.8)
DI
.327(8.2)
Maximum Ratings and Electrical Charactristics
Rating at 25
o
C ambient temperature unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load
For capacitive load derate current by 20%
Parameters
Maximum repetitive peak reverse voltage
Maximum RM S voltage
Maximum DC blocking voltage
Maximum Average rectified forward current
at T
C
=110
o
C
Peak forward surge current 8.3mS single
half sine-wave superimposed on rated load
(JE DEC Method)
Rating for fusing(t<8.3ms)
Maximum instantaneous forward voltage
drop at 100A
Maximum DC reverse current T
A
=25
o
C
at rated DC blocking voltage T
A
=150
o
C
Typical thermal resistance
Operating and storage temperature
Symbols
V
RRM
V
RMS
V
DC
I
o
I
FSM
I
2
t
V
F
I
R
R
θJC
T
J
,T
STG
ARL251
ARSL251
100
70
100
Dimensions in inches and millimeters
ARL252
ARSL252
200
140
200
ARL253
ARSL253
300
210
300
25
400
664
1.1
5.0
450
1.0
-65 to +175
ARL254
ARSL254
400
280
400
ARL256
ARSL256
600
420
600
Units
Volts
Volts
Volts
Amps
Amps
A
2
S
Volts
uA
o
C/W
o
C
Notes: 1.Enough heatsink must be considered in application.
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