EIC FR255G

FR251G - FR257G-STR
GLASS PASSIVATED JUNCTION
FAST RECOVERY RECTIFIERS
PRV : 50 - 1000 Volts
Io : 2.5 Amperes
D2A
FEATURES :
*
*
*
*
*
*
1.00 (25.4)
MIN.
0.161 (4.1)
0.154 (3.9)
Glass passivated chip
High current capability
High reliability
Low reverse current
Low forward voltage drop
Fast switching for high efficiency
0.284 (7.2)
0.268 (6.8)
1.00 (25.4)
MIN.
0.040 (1.02)
0.0385 (0.98)
MECHANICAL DATA :
* Case : D2A Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
Method 208 guaranteed
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 0.645 gram
Dimensions in inches and ( millimeters )
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 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%.
RATING
SYMBOL FR251G FR252G FR253G FR254G FR255G FR256G FR257G
FR257G
-STR
UNIT
Maximum Recurrent Peak Reverse Voltage
VRRM
50
100
200
400
600
800
1000
1000
V
Maximum RMS Voltage
VRMS
35
70
140
280
420
560
700
700
V
Maximum DC Blocking Voltage
VDC
50
100
200
400
600
800
1000
1000
V
Maximum Average Forward Current
0.375"(9.5mm) Lead Length
Ta = 75 °C
Peak Forward Surge Current,
8.3ms Single half sine wave superimposed
on rated load (JEDEC Method)
Maximum Peak Forward Voltage at IF = 2.5 A
Maximum DC Reverse Current
Ta = 25 °C
at Rated DC Blocking Voltage
Ta = 100 °C
IF(AV)
2.5
A
IFSM
80
A
VF
1.3
V
IR
10
µA
IR(H)
500
µA
Maximum Reverse Recovery Time ( Note 1 )
Trr
150
250
500
250
ns
Typical Junction Capacitance ( Note 2 )
CJ
15
pf
Junction Temperature Range
TJ
- 65 to + 150
°C
Storage Temperature Range
TSTG
- 65 to + 150
°C
Notes :
( 1 ) Reverse Recovery Test Conditions : IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A.
( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 VDC
Page 1 of 2
Rev. 01 : April 17, 2002
RATING AND CHARACTERISTIC CURVES ( FR251G - FR257G-STR )
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50 Ω
Trr
10 Ω
+ 0.5
D.U.T.
+
0
PULSE
GENERATOR
( NOTE 2 )
50 Vdc
(approx
)
1Ω
- 0.25
OSCILLOSCOPE
( NOTE 1 )
- 1.0 A
SET TIME BASE FOR 50/100 ns/cm
NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF.
1
2. Rise time = 10 ns max., Source Impedance = 50 ohms.
3. All Resistors = Non-inductive Types.
FIG.2 - DERATING CURVE FOR OUTPUT
RECTIFIED CURRENT
FIG.3 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
100
PEAK FORWARD SURGE
CURRENT, AMPERES
AVERAGE FORWARD OUTPUT
CURRENT, AMPERES
2.5
2.0
1.5
1.0
0.5
8.3 ms SINGLE HALF SINE WAVE
Ta = 50 °C
80
60
40
20
60Hz RESISTIVE OR INDUCTIVE LOAD
0
0
25
50
75
100
125
150
0
175
1
AMBIENT TEMPERATURE, ( °C)
FIG.4 - TYPICAL FORWARD CHARACTERISTICS
4
6
10
20
40
60 100
FIG.5 - TYPICAL REVERSE CHARACTERISTICS
10
100
Pulse W idth = 300 µs
2% Duty Cycle
TJ = 100 °C
REVERSE CURRENT,
MICROAMPERES
FORWARD CURRENT, AMPERES
2
NUMBER OF CYCLES AT 60Hz
TJ = 25 °C
10
1.0
1.0
0.1
TJ = 25 °C
0.01
0
0.1
20
40
60
80
100
120
14
PERCENT OF RATED REVERSE
VOLTAGE, (%)
0.01
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
FORWARD VOLTAGE, VOLTS
Page 2 of 2
Rev. 01 : April 2, 2002