© Won-Top Electronics Co., Ltd. www.wontop.com
Revision: May, 2014 1
Pb
Features
Isolated Triple Diode L
Low Forward Voltage
PN Junction Guard Ring for Transient and
ESD Protection
For General Purpose Switching Applications
B C
Plastic Material – UL Recognition Flammability
Classification 94V-0 M
E D
H
Mechanical Data
Case: SOT-363, Molded Plastic
Terminals: Plated Leads Solderable per J
MIL-STD-202, Method 208
Polarity: See Diagram
Weight: 0.006 grams (approx.)
Mounting Position: Any
Marking: 731
Lead Free: For RoHS / Lead Free Version,
Add “-LF” Suffix to Part Number, See Page 4
TOP VI EW
Maximum Ratings @T
A
=25°C unless otherwise specified
Characteristic Symbol Value Unit
Non-Repetitive Peak Reverse Voltage VRM 40 V
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
V
RWM
V
R
40 V
Average Rectified Output Current IO 30 mA
Non-Repetitive Peak Forward Surge Current, 60Hz IFSM 200 mA
Operating and Storage Temperature Range TJ, TSTG -40 to +125 °C
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 1) PD 200 mW
Note: 1. Mounted on FR-4 PC board with minimum recommended pad layout.
RB731XN
SURFACE MOUNT SCHOTTKY BARRIER DIODE ARRAY
WON-TOP ELECTRONICS
®
SOT-363
Dim Min Max
A 0.10 0.30
B 1.15 1.35
C 2.00 2.30
D 0.65 Typical
E 0.40 0.50
H 1.80 2.20
J — 0.10
K 1.0 Typical
L 0.25 0.40
M 0.10 0.22
All Dimensions in mm
A
K
www.wontop.com © Won-Top Electronics Co., Ltd.
2 Revision: May, 2014
Electrical Characteristics @T
A
=25°C unless otherwise specified
Characteristic Symbol Min. Typ. Max. Unit
Forward Voltage Drop @ IF = 1.0mA VF 0.37 V
Reverse Leakage Current @ VR = 10V IR 1.0 µA
Diode Capacitance (VR = 1.0V, f = 1.0MHz) C
D
2.0 pF
RB731XN
WON-TOP ELECTRONICS
®
0
T
A
, AMBIENT TEMPERA TURE (°C)
Fig. 1 Power Derating Curve
25 50 75 100 125
0
50
100
150
200
250
P
D
, POWER DISSIPATION (mW)
0
V
F
, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
0.2 0.4 0.6 0.8 1.0
0.1
1.0
10
100
I
F
, INSTANTANEOUS FORWARD CURRENT (mA)
V
R
, DC REVERSE VOLTAGE (V)
Fig. 3 Total Capacitance vs. Reverse Voltage
0
0.5
1.0
1.5
2.0
2.5
C
T
, TOTAL CAPACITANCE (pF)
0
V
R
, INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 4 Typical Reverse Characteristics
6 12 18 24 30
0.001
0.01
0.1
1.0
10
100
I
R
, INSTANTANEOUS REVERSE CURRENT (µA)
0
10
20
30 40 50
f = 1.0MHz
T
A
= 125°C
T
A
= 75°C
T
A
= 25°C
T
A
= 125°C
T
A
= -25°C
T
A
= 25°C
T
A
= 75°C
T
A
= -25°C