21201 Itasca St.
Chatsworth, CA 91311
Phone: (818) 701-4933
Fax: (818) 701-4939
SK32B
THRU
SK310B
3 Amp Schottky
Rectifier
20 to 80 Volts
DO-214AA
(SMBJ)
H
Features
•
•
•
•
•
•
•
Same Electrical Characteristics As The SMC Version
Very
Low Cost
Can Be Up To 40% Smaller Than The SMC To Save Precious
Board Space
High Current Capability With Low Forward Voltage
For Surface Mount Applications
Gull Wing, Or DO215AA Version, Available
Maximum Ratings
•
•
•
Operating Temperature: -65°C to +125°C
Storage Temperature: -65°C to +125°C
Maximum Thermal Resistance; 12°C/W Junction To Lead
Microsemi
Part
Number
SK32B
SK33B
SK34B
SK35B
SK36B
SK38B
SK310B
Device
Marking
Maximum
Recurrent
Peak Reverse
Voltage
20V
30V
40V
50V
60V
80V
100V
Maximum
RMS
Voltage
14V
21V
28V
35V
42V
56V
70V
Maximum
DC
Blocking
Voltage
20V
30V
40V
50V
60V
80V
100V
Cathode Band
J
SK32B
SK33B
SK34B
SK35B
SK36B
SK38B
SK310B
A
C
E
F
G
D
B
DIMENSIONS
INCHES
MM
DIM
MIN
MAX
MIN
A
.075
.115
1.90
B
.081
.087
2.06
C
.004
.008
.10
D
---
.02
---
E
.030
.060
.76
F
.065
.084
1.65
G
.205
.228
5.21
H
.160
.180
4.06
J
.130
.155
3.30
1) Maximum Jedec Spec is .096” or 2.44 MM
Electrical Characteristics @ 25°C Unless Otherwise Specified
Average Forward
I
F(AV)
3.0A
T
A
= 105°C
Current
Peak Forward Surge
I
FSM
80A
8.3ms, half sine
Current
Maximum
Instantaneous
Forward Voltage
.50V
I
FM
= 3.0A;
SK32-SK34
V
F
.75V
SK35-SK310
T
A
= 25°C*
Maximum DC
.5mA
Reverse Current At
I
R
T
A
= 25°C
20mA
Rated DC Blocking
T
A
= 100°C
Voltage
Typical Junction
C
J
45pF
Measured at
Capacitance
1.0MHz, V
R
=4.0V
*Pulse test: Pulse width 200
µsec,
Duty cycle 2%
MAX
2.92
2.21
.20
.51
1.52
2.13
5.79
4.57
3.94
NOTE
1
SUGGESTED SOLDER
PAD LAYOUT
0.085”
0.095”
0.075”
SK32B thru SK310B
Figure 1
Typical Forward Characteristics
100
60
40
20
10
6
4
2
Amps
1
.6
.4
.2
.1
.06
.04
.02
.01
.2
.4
.6
.8
Volts
Instantaneous Forward Current - Amperes
versus
Instantaneous Forward Voltage - Volts
1.0
1.2
1.4
0
.5
Single Phase, Half Wave
60Hz Resistive or Inductive Load
40
60
80
100
°C
Average Forward Rectified Current - Amperes
versus
Ambient Temperature -
°C
120
140
160
SK36B-SK310B
1.5
Amps
1.0
SK32B-SK34B
2.0
2.5
3.0
Figure 2
Forward Derating Curve
Figure 3
Junction Capacitance
100
600
400
200
pF
100
60
40
20
10
.1
.2
.4
1
2
4
Volts
Junction Capacitance - pF
versus
Reverse Voltage - Volts
10
20
40
100
200
400
1000
SK32B thru SK310B
Figure 4
Typical Reverse Characteristics
1000
Figure 5
Peak Forward Surge Current
150
125
600
400
200
Amps
100
60
µAmps
40
20
10
6
4
2
1
20
40
60
80
%
Instantaneous Reverse Leakage Current - MicroAmperes
versus
Percent Of Rated Peak Reverse Voltage (V
RWM
) - %
Figure 6
New SMB Assembly
100
12
0
140
100
75
50
25
0
1
2
4
6
8 10 20
Cycles
Peak Forward Surge Current - Amperes
versus
Number Of Cycles At 60Hz - Cycles
40
60 80 100
Round Lead
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