Rectron FR251 Fast recovery rectifier (voltage range 50 to 1000 volts current 2.5 amperes) Datasheet

FR251
RECTRON
THRU
SEMICONDUCTOR
TECHNICAL SPECIFICATION
FR257
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
Weight: 0.54 gram
.042 (1.1)
DIA.
.040 (1.0)
1.0 (25.4)
MIN.
.160 (4.1)
.138 (3.5)
.160 (4.1)
DIA.
.138 (3.5)
1.0 (25.4)
MIN.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
o
Ratings at 25 C 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 A = 25 oC unless otherwise noted)
RATINGS
SYMBOL
FR251 FR252 FR253 FR254 FR255 FR255P FR256 FR257 FR257P UNITS
Maximum Recurrent Peak Reverse Voltage
VRRM
50
100
200
400
600
600
800
1000
1000
Volts
Maximum RMS Voltage
VRMS
35
70
140
280
420
420
560
700
700
Volts
VDC
50
100
200
400
600
600
800
1000
1000
Volts
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
at T A = 75 oC
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range
IO
2.5
Amps
I FSM
150
Amps
CJ
60
pF
T J , T STG
-65 to + 150
0
C
ELECTRICAL CHARACTERISTICS (At TA = 25oC unless otherwise noted)
CHARACTERISTICS
Maximum Instantaneous Forward Voltage at 2.5A DC
Maximum DC Reverse Current
at Rated DC Blocking Voltage TA = 25 oC
Maximum Full Load Reverse Current Average,
Full Cycle .375” (9.5mm) lead length at T L = 55 oC
Maximum Reverse Recovery Time (Note 1)
NOTES : 1. Test Conditions: IF = 0.5A, IR = -1.0A, IRR = -0.25A
2. Measured at 1 MHZ and applied reverse voltage of 4.0 volts
SYMBOL
VF
FR251 FR252 FR253 FR254 FR255 FR255P FR256 FR257 FR257P UNITS
1.3
Volts
5.0
uAmps
IR
100
trr
150
250
uAmps
150
500
250
nSec
2001-5
RATING AND CHARACTERISTIC CURVES ( FR251 THRU FR257 )
FIG. 3 - MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
2.5
PEAK FORWARD SURGE
CURRENT, (A)
150
2.0
1.5
1.0
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
.5
0
125
8.3ms Single Half Sine-Wave
(JEDEC Method)
100
75
50
25
0
0
25 50 75 100 125 150 175
AMBIENT TEMPERATURE, ( )
1
2
FIG. 3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
20
10
3.0
TJ = 25
Pulse Width=300uS
1% Duty Cycle
1.0
0.3
0.1
.03
.01
0.4
5
10
20
50
NUMBER OF CYCLES AT 60Hz
100
FIG. 4 - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, (pF)
INSTANTANEOUS FORWARD CURRENT, (A)
AVERAGE FORWARD CURRENT, (A)
FIG. 1 - TYPICAL FORWARD CURRENT
DERATING CURVE
200
100
60
40
20
10
TJ = 25
6
4
2
1
0.6
0.8
1.0
1.2
1.4
.1
1.6 1.8
.2
.4
INSTANTANEOUS FORWARD VOLTAGE, (V)
1.0 2
4
10
20
REVERSE VOLTAGE, ( V )
FIG. 5 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
50
NONINDUCTIVE
(+)
25 Vdc
(approx)
(-)
10
NONINDUCTIVE
trr
+0.5A
(-)
D.U.T
0
PULSE
GENERATOR
(NOTE 2)
1
NONINDUCTIVE
OSCILLOSCOPE
(NOTE 1)
-0.25A
(+)
-1.0A
NOTES:1 Rise Time = 7ns max. Input Impedance =
1 megohm. 22pF.
2. Rise Time = 10ns max. Source Impedance =
50 ohms.
1cm
SET TIME BASE FOR
50/100 ns/cm
RECTRON
40
100
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