LRC FR257, FR257P, FR254, FR253, FR256 Datasheet
...
2.5A
2.5A FAST RECOVERY DIODES
LESHAN RADIO COMP ANY , LTD.
FR251 – FR257P
TYPE
FR251
FR252
FR253
FR254
FR255
FR256
FR257
FR257P
Trr I F = 0.5A, I R = 1.0A, I
Trr Test Conditions: I F = 0.5A, I R = 1.0A, I
Maximum
Peak Reverse
Voltage
PRV
V
PK
50
100
200
400
600
800
1000
1000
Resistive Load 60Hz
2.5 150 2.575 5.0 1.3
RR
Maximum Average
Rectified Current
@ Half-Wave
I O @ T
L
A
= 0.25A
RR
AV
= 0.25A
ºC
.042(1.1)
.041(1.0)
Maximum
Forward Peak
Surge Current @
8.3ms Superimposed
I
(Surge)
FM
A
PK
1.0(25.4)
MIN
.160(4.1)
.138(3.5)
DIA
.160(4.1)
.138(3.5)
Maximum
Reverse
Current @ PRV
@ TA=25ºC
I
R
µAdc
1.0(25.4)
MIN
DIA
Maximum
Forward
Voltage
@ TA=25ºC
I
FM
A
PK
V
FM
V
PK
Maximum
Reverse
Recovery Time
Trr
ns
150
150
150
150
250
500
500
250
Package
Dimensions
R – 3
R - 3
19A–1/2
LESHAN RADIO COMP ANY , LTD.
FR251 – FR257P
2.5A
RATING & CHARACTERISTIC CURVES OF 2.5A FAST DIODES
FIG.1–TEST CIRCUIT DIAGRAM AND
REVERSE RECOVERY TIME CHARACTERISTIC
50 Ω 10 Ω
NONINDUCTIVE NONINDUCTIVE
D.U.T.
(+)
25Vdc
(APPROX)
(-)
1Ω
OSCILLOSCOPE
NON.
INDUCTIVE
(NOTE 1)
NOTES:1.Rise Time=7ns max.
Input Impedance=1megohm.22pF.
2.Rise Time=10ns max.
Source Impedance=50 ohms.
FIG. 3 – TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
20
10
3.0
1.0
TJ =25ºC
(-)
PULSE
GENERATOR
(NOTE 2)
(+)
+0.5A
-0.25A
-1.0A
Trr
0
1cm
BASE FOR 50/100ns/cm
FIG. 2 – TYPICAL FORWARD
CURRENT DERATING CURVE
2.5
2.0
.1.5
1.0
Single Phase
Half Wave 60Hz
.5
Resistive or
Inductive Load
0
AVERAGE FORWARD CURRENT,(A)
SET TIME
0 25 50 75 100 125 150 175
AMBIENT TEMPER ATURE, (ºC)
FIG. 4 – MAXINUM NON-REPETITIVE
FOWARD SURGE CURRENT
105
90
75
60
45
30
8.3ms Single Half Sine-Wave
(JEDEC Method)
0.3
0.1
INSTANTANEOUS FOWARD CURRENT (A)
.03
.01
.4 .6 .8 1.0 1.2 1.4 1.6 1.8
INSTANTANEOUS FORWARD VOLTAGE, (%)
Pulse Width=300µs
1% Duty Cycle
15
PEAK FORWARD SURGE CURRENT,(A)
0
1 2 5 10 20 50 100
NUMBER OF CYCLES AT 60Hz
FIG. 5 – TYPICAL JUNCTION CAPACITANCE
200
100
60
40
20
10
6
4
JUNCTION CAPACITANCE,(pF)
2
1
.1 .2 .4 1.0 2 4 10 20 40 100
TJ =25ºC
REVERSE VOLTAGE,(V)
19A–2/2
Loading...