FR251 THRU FR257

FR251 THRU FR257
R
FAST RECOVERY RECTIFIER
Reverse Voltage: 50 to 1000 Volts
Forward Current:2.5Amperes
S E M I C O N D U C T O R
DO-15
FEATURES
JF
Low leakage
Low forward voltage drop
1.0(25.4)
MIN
High current capability
High current surge
0.144(3.6)
0.104(2.6)
DIA
High reliability
High temperature soldering guaranteed:260°C/10 seconds at terminals
Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC
0.300(7.60)
0.230(5.60)
MECHANICAL DATA
Case: JEDEC DO-15 molded plastic body
Terminals: Plated axial leads, solderable per
MIL-STD-750,Method 2026
1.0(25.4)
MIN
0.036(0.90)
0.028(0.70)
DIA
Polarity: Color band denotes cathode end
Mounting Position: Any
Weight: 0.03 ounce, 0.54 gram
Dimensions in inches and (millimetrers)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
(Rating at 25°C ambient temperature unless otherwise specified.Single phase ,half wave ,60HZ,resistive or inductive
load. For capacitive load,derate current by 20%.)
Symbols
FR
251
FR
252
FR
253
FR
254
FR
255
FR
256
FR
257
50
100
200
400
600
800
1000
35
70
140
280
420
560
700
50
100
200
400
600
800
1000
Units
Volts
Volts
Volts
Maximum DC Blocking Voltage
VRRM
VRMS
VDC
Maximum Average Forward Rectified Current
0.375"(9.5mm)lead length at TA=75°C
I(AV)
2.5
Amps
Peak Forward Surge Current ,8.3ms single half
sine-wave
IFSM
150
Amps
VF
1.3
Volts
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum Instantaneous Forward Voltage
at 2.5 A
Maximum DC Reverse Current
at rated DC blocking voltage
TA=25°C
10
IR
Maximum reverse recovery time(Note1)
Typical junction capacitance(Note2)
Operating junction and storage temperature
range
A
150
TA=100°C
trr
CJ
150
250
60
TJ TSTG
500
30
-65 to+175
ns
P
F
pF
C
Note: 1.Test conditions: IF=0.5A,IR=1.0A,IRR=0.25A.
2.Measured at 1MHZ and applied reverse voltage of 4.0 Volts D.C.
JINAN JINGHENG ELECTRONICS CO., LTD.
7-14
HTTP://WWW.JINGHENGGROUP.COM
RATINGS AND CHARACTERISTIC CURVES FR251 THRU FR257
FIG.2-MAXIMUM NON-REPETITIVE
FORWARD SURGE CURRENT
2.5
PEAK FORWARD SURGE CURRENT(AMPERES)
AVERAGE FORWARD CURRENT (A)
FIG.1-TYPICAL FORWARD CURRENT
DERATING CURVE
2.0
1.5
1.0
SINGIE PHASE HAIF WAVE 60HZ
RESISTIVE OR INDUCTIVE LOAD
0.5
0
0
25
50
75
100
125
150
175
AMBIENT TEMPERATURE (°C)
FIG.3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
150
8.3ms SINGLE HALF SINE-WAVE
125
(JEDEC Method)
100
75
50
25
0
1
2
4
6
8 10
20
40
60
100
NUMBER OF CYCLES AT 60Hz
FIG.4-TYPICAL JUNCTION CAPACITANCE
10
3
JUNCTION CAPACITANCE(pF)
INSTANTANEOUS FORWARD CURRENT( AMPERES)
20
1
0.3
0.1
TJ=25°C
Pulse Width=300µs
0.03
1% Duty Cycle
200
100
60
40
TJ=25 C
20
10
6
4
2
0.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1
1.8
0.1 0.2
0.4
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
1
2
4
10
20
REVERSE VOLTAGE. (V)
FIG.5-TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
NONINDUCTIVE
NONINDUCTIVE
trr
+0.5A
(+)
D.U.T.
0
PULSE
GENERATOR
(NOTE2)
50Vdc
-0.25A
(ADJUSTABLE)
(-)
1
NONINDUCTIVE
OSCILLOSCOPE
(NOTE1)
-1.0A
1cm
SET TIME BASE FOR 50/100 ns/cm
NOTES:1.Rise Time=7ns max. input lmpedance=1
megohm 22pF
2.Rise Time=10ns max. source lmpedance=
50 ohms
JINAN JINGHENG ELECTRONICS CO., LTD.
7-15
HTTP://WWW.JINGHENGGROUP.COM
40
100