MB251D
25 Amp Single Phase
Bridge Rectifier
110 Volts
Features
High Conductivity Metal Case
Any Mounting Position
Surge Rating Of 300 Amps
Maximum Ratings
Operating Temperature: -55
C to +125
C
Storage Temperature: -55
C to +150
C
MCC
Catalog
Number
Device
Marking
Maximum
Recurrent
Peak Reverse
Voltage
Maximum
RMS
Voltage
Maximum
DC
Blocking
Voltage
MB251D MB251 110V 77V 110V
Electrical Characteristics @ 25
C Unless Otherwise Specified
Average Forward
Current
I
F(AV)
25.0A T
C
=
55
C
Peak Forward Surge
Current
I
FSM
300A 8.3ms, half sine
Maximum Forward
Voltage Drop Per
Element
V
F
2.1V I
FM
= 12.5A per
element;
T
J
= 25
C
Maximum DC
Reverse Current At
Rated DC Blocking
Voltage
I
R
2
A
T
J
= 25
C
*Pulse test: Pulse width 300
sec, Duty cycle 1%
M C C
DIMENSIONS
INCHES
MM
DIM
MIN
MAX
MIN
MAX
NOTE
A ----- 1.142 ----- 29.00
B ----- .453 ----- 11.50
C .425 .480 10.80 12.20
D .691 .732 17.54 18.60
G .188 ----- 4.77 -----
omponents
21201 Itasca Street Chatsworth
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J .543 .583 13.80 14.80
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mccsemi
.com
MB-35D
+
-
MB251D
Instantaneous Forward Current - Amperes
versus
Instantaneous Forward Voltage - Volts
Figure 1
Typical Forward Characteristics
Volts
4
6
20
10
Amps
1.4 2.5
1.6 1.8 2.1 2.3
.01
.02
.04
.06
.1
.2
.4
.6
1
2
25
C
40
60
100
Figure 2
Typical Reverse Characteristics
Volts
.4
.6
2
1
Amps
20 120
40
60
80
100
.001
.002
.00
4
.006
.01
.02
.04
.06
.1
.2
4
6
10
140
T
J
=25
C
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mccsemi
.com
M C C
Instantaneous Reverse Leakage Current - MicroAmperes
versus
Percent Of Rated Peak Reverse Voltage - Volts
Average Forward Rectified Current - Amperes
versus
Case Temperature -
C
Figure 3
Forward Derating Curve
25
50
100
150
175
0
0
5
10
15
Single Phase, Half Wave
60Hz Resistive or Inductive Load
Amps
C
75
20
25
30
1
100
4
0
50
100
150
8
Figure 4
Peak Forward Surge Current
Peak Forward Surge Current - Amperes
versus
Number Of Cycles At 60Hz - Cycles
Amps
Cycles
2
6
10
20
60 80
40
00
200
250
300
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