BYD31D-BYD31M
Fast Recovery Rectifiers
VOLTAGE RANGE: 200 --- 1000 V
CURRENT: 0.5 A
Features
Low cos t
Diffus ed junction
Low leakage
Low forward voltage drop
High current capability
Eas ily cleaned with Freon Alcohol,Is opropanol and
s im ilar s olvents
DO - 41
Mechanical Data
Cas e:JEDEC DO--41,m olded plas tic
Polarity: Color band denotes cathode
Weight: 0.012ounces ,0.34 gram s
Mounting pos ition: Any
Dimensions in millimeters
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
am bient tem perature unles s otherwis e s pecified.
Single phas e,half wave,50Hz,res is tive or inductive load. For capacitive load,derate by 20%.
BYD
31D
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectif ied current
9.5mm lead length,
@T
A
=75
BYD
31G
400
280
200
BYD
31J
600
420
600
0.5
BYD
31K
800
560
800
BYD
31M
1000
700
1000
UNITS
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
200
140
200
Peak forw ard surge current
10ms single half-sine-w ave
superimposed on rated load
@T
J
=125
I
FSM
V
F
I
R
t
rr
C
J
R
θ
JA
T
J
T
STG
15.0
A
Maximum instantaneous forw ard voltage
@ 0.5 A
Maximum reverse current
at rated DC blocking voltage
@T
A
=25
@T
A
=100
1.35
5.0
100.0
250
12
55
-55 ---- + 150
- 55 ---- + 150
V
A
ns
pF
/W
Maximum reverse recovery time (Note1)
Typical junction capacitance
Typical thermal resistance
(Note2)
(Note3)
Operating junction temperature range
Storage temperature range
NOTE: 1. Measured with I
F
=0.5A, I
R
=1A, I
rr
=0.25A.
2. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC.
3. Thermal resistance f rom junction to ambient.
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mail:lge@luguang.cn
BYD31D-BYD31M
Fast Recovery Rectifiers
Ratings AND Charactieristic Curves
FIG.1 -- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50
N.1.
10
N.1.
t
rr
+0.5A
( - )
D.U.T.
(+)
50VDC
(APPROX)
(-)
1
N.1.
PULSE
GENERATOR
(NOTE2)
OSCILLOSCOPE
(NOTE 1)
( + )
0
-0.25A
-1.0A
1cm
NOTE
S:1.RISETIM =7ns M INP T IM E
E
AX. U P DANCE
=1M .22pF
2.RISETIM =10ns M SOU
E
AX.
RCEIM E CE
P DAN =5O
SE TIM BASEFOR 50/100 ns /cm
T E
FIG.2 --FORWARD DERATING CURVE
PEAK FORWARD SURGE CURRENT
AMPERES
FIG.3 --PEAK FORWARD SURGE CURRENT
AVERAGE FORWARD CURRENT
AMPERES
25
0.6
0.5
0.4
0.3
0.2
0.1
0
0
20
40
60
80
Single Phase
Half Wave 60H
Z
Resistive or
Inductive Load
20
15
T
J
=125
8.3ms Single Half
Sine-Wave
10
5
0
1
10
100
100
120
140 160
180
200
AMBIENT TEMPERATURE,
NUMBER OF CYCLES AT 60 Hz
FIG.4--TYPICAL FORWARD CHARACTERISTIC
INSTANTANEOUS FORWARD CURRENT
AMPERES
100
10
FIG.5-- TYPICAL JUNCTION CAPACITANCE
10
JUNCTION CAPACITANCE,pF
T
J
=25
Pulse Width=300
µ
S
16
14
4
2
1.0
0.4
0.2
0.1
0.06
0.04
0.02
0.01
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
12
10
4
2
1
.1
T
J
=25
f=1MHz
.2
.4
1.0
2
4
10
20
40
100
INSTANTANEOUS FORWARD VOLTAGE,VOLTS
REVERSE VOLTAGE,VOLTS
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