G
H
J
E
F
A
B
D
C
Cathode Band
21201 Itasca St.
Chatsworth, CA 91311
Phone: (818) 701-4933
Fax: (818) 701-4939
SK32BG
THRU
SK310BG
3 Amp Schottky
Rectifier
20 to 80 Volts
DO-215AA
(SMBG)
DIMENSIONS
INCHES MM
DIM MIN MAX MIN MAX NOTE
A .075 .095 1.90 2.42
B .081 .087 2.06 2.21
C .004 .008 .10 .20
D --- .02 --- .51
E .015 .03 .38 .76
F .065 .084 1.65 2.13
G .235 .255 5.97 6.48
H .160 .180 4.06 4.57
J .130 .155 3.30 3.94
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 And Can Use The Same Solder Pad
• High Current Capability With Low Forward Voltage
• For Surface Mount Applications
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 Device
Marking
Maximum
Recurrent
Peak Reverse
Voltage
Maximum
RMS
Voltage
Maximum
DC
Blocking
Voltage
SK32BG SK32B 20V 14V 20V
SK33BG SK33B 30V 21V 30V
SK34BG SK34B 40V 28V 40V
SK35BG SK35B 50V 35V 50V
SK36BG SK36B 60V 42V 60V
SK38BG SK38B 80V 56V 80V
SK310BG SK310B 100V 70V 100V
Electrical Character istics @ 25 °C U nless Otherwise Specified
Average Forward
Current IF(AV) 3.0A TA = 105°C
Peak Forward Surge
Current IFSM 80A 8.3ms, half sine
Maximum
Instantaneous
Forward Voltage
SK32BG-SK34BG
SK35BG-SK310BG VF.50V
.75V IFM = 3.0A;
TA = 25°C*
Maximum DC
Reverse Current At
Rated DC Blocking
Voltage
IR.5mA
20mA TA = 25°C
TA = 100°C
Typical Junction
Capacitance CJ155pF Measured at
1.0MHz, VR=4.0V
*Pulse test: Pulse width 200 µsec, Duty cycle 2%
0.075”
0.190
”
0.095”
SUGGESTED SOLDER
PAD LAYOUT
Average Forward Rectifi ed Current - Amperes versus
Ambi ent Temperat ure - °C
Figure 2
Forward Derating Curve
40 60 100 120 140 160
0
.5
1.0
1.5
Amps
°C
80
2.0
2.5
3.0
Single Phase, Half Wave
60Hz Resistive or Inductive Load
Figure 1
Typical Forward Characteri stics
Instantaneous Forward Current - Amperes versus
Instantaneous Forward Voltage - Vol ts
Volts
1.2
.4 .6 .8 1.0
4
6
20
10
Am
p
s
.2
.01
.02
.04
.06
.1
.2
.4
.6
1
2
40
60
100
1.4
SK36BG-SK310BG
SK32BG-SK34BG
Figure 3
Junct i on Capacitance
.1 .2 1.4 2 10 20 404 100 200
10
20
60
100
200
100
Junct i on Capacitance - pF versus
Reverse Voltage - Volts
pF
Volts
600
400
40
400 1000
SK32BG thru SK310BG
Figure 6
New SMB Assembly
Round Lead
Inst ant aneous Reverse Leakage Current - MicroAmperes versus
Percent Of Rated Peak Reverse Voltage (V RWM) - %
Figure 4
Typical Revers e Characteris tics
%
400
600
1000
µAmps
20 12
0
40 60 80 100
1
2
4
6
10
20
40
60
100
200
140
1 100
4
0
25
50
75
8
Figure 5
Peak Forward Surge Current
Peak Forward Surge Current - Amperes versus
Number Of Cycles At 60Hz - Cycles
Amps
Cycles
2610 20 60 80
40
100
125
150
SK32BG thru SK310BG
