FAST RECOVER RECTIFIER
FR251 THRU FR257
FEATURES
•
•
•
•
•
VOLTAGE RANGE
CURRENT
50 to 1000 Volts
2 .5Ampere
Low coat construction
Fast switching for high efficency.
Low reverse leakage
High forward surge current capability
High temperature soldering guaranteed:
260℃/10 secods/.375”(9.5mm)lead length at 5 lbs(2.3kg) tension
R-3
.042(1.1)
DIA.
.038(0.96)
1.0(25.4)
MIN.
.160(4.1)
.138(3.5)
.160(4.1)
.138(3.5)
DIA.
MECHANICAL DATA
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•
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Case: Transfer molded plastic
Epoxy: UL94V-O rate flame retardant
Polarity: Color band denotes cathode end
Lead: Plated axial lead, solderable per MIL-STD-202E method 208C
Mounting position: Any
Weight: 0.042ounce, 1.19 grams
1.0(25.4)
MIN.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
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•
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Ratings 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%
SYMBOLS
Maximum Repetitive Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
0.375”(9.5mm) lead length at T
A
= 75℃
Peak Forward Surge Current
8.3mS single half sine wave superimposed on
rated load (JEDEC method)
Maximum Instantaneous Forward Voltage @ 2.5A
Maximum DC Reverse Current at Rated
DC Blocking Voltage
T
A
= 25℃
T
A
= 100℃
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
trr
C
J
R
θJA
T
J
T
STG
FR
251
50
35
50
FR
252
100
70
100
FR
253
200
140
200
FR
254
400
280
400
2.5
100
1.3
5.0
500
FR
255
600
420
600
FR
256
800
560
800
FR
257
1000
700
1000
UNITS
Volts
Volts
Volts
Amp
Amps
Volts
µA
Maximum Reverse Recovery Time (Note 3) T
J
=25℃
Typical Junction Capacitance (Note 1)
Typical Thermal Resistance (Note 2)
Operating Junction Temperature Range
Storage Temperature Range
150
60
30
(-55 to +150)
(-55 to +150)
250
500
ns
pF
℃
/W
℃
℃
Notes:
1.Measured at 1.0MHz and Applied Reverse Voltage of 4.0Volits.
2 Thermal Resistance from junction to Ambient at .375”(9.5mm)lead length, P.C.board mounted.
3.Reverse Recovery Test Conditions:If=0.5mA,Ir=1.0mA,Irr=0.25A
E-mail:
sales@cnmic.com
Web Site: www.cnmic.com
FAST RECOVER RECTIFIER
FR251 THRU FR257
VOLTAGE RANGE
CURRENT
50 to 1000 Volts
2 .5Ampere
RATING AND CHRACTERISTIC CURVES FR251 THRU FR257
FIG.2-MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
200
8.3ms Single Half Sine-Wave
(JEDEC Method) Tj=Tjmax
FIG.1-TYPICAL FORWARD CURRENT
DERATING CURVE
3.0
AVERAGE FORWARD CURRENT,
PEAK FORWARD SURGE
100
80
2.0
CURRENT, (A)
60
(A)
40
1.0
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375"(9.5mm)Lead Length
20
0
0
25
50
75
100
125
150
175
10
1
2
4
6
8
10
20
40
60 80 100
AMBIENT TEMPERATURE, (° C)
NUMBER OF CYCLES AT 60 Hz
FIG.3-TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT,
20
FIG.4-TYPICAL REVERSE
CHARACTERISTICS
10
10
INSTANTANEOUS REVERSE CURRENT,
T
j
=100° C
1.0
(A)
1.0
Tj =25° C
Pulse Width=300us
1% Duty Cycle
0.1
(uA)
0.1
T
j
=25° C
0.01
0
20
40
60
80
100
120
140
0.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
INSTANTANEOUS FORWARD VOLTAGE,(V)
PERCENT OF RATED PEAK
REVERSE VOLTAGE,(%)
FIG.5-TYPICAL JUNCTION CAPACITANCE
FIG.6-TEST CIRCUIT DIAGRAM AND
REVERSE REXOVERY TIME CHARACTERISTIC
100
80
60
+0.5A
JUNCTION CAPACITANCE,(pF)
40
50Ω
NONINDUCTIVE
10Ω
NONINDUCTIVE
20
(+)
25 Vdc
（approx）
(-)
(-)
0
0.25A
D.U.T
10
8
6
4
TJ=25° C F=1MHz
2
Vsig=50mVp-p
PULSE
GENERATIOR
(NOTE 2)
1Ω
NON
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
-1.0A
NOTE: 1.Rise Time =7ns max.Input Impedance=1megohm.22pF
2.Rise time=10ns max.Source Impedance=50 ohms
SET TIME BASE FOR
50 /100NS /cm
1
0.1
1.0
10
100
REVERSE VOLTAGE,(V)
E-mail:
sales@cnmic.com
Web Site: www.cnmic.com
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