RB491D
SCHOTTKY BARRIER DIODE
FEATURES
• Small mold type
• Low I
R
• High Reliability
• In compliance with EU RoHS 2002/95/EC directives
0.056(1.40)
0.047(1.20)
0.120(3.04)
0.110(2.80)
SOT-23
Unit
：
inch(mm)
0.006(0.15)MIN.
• Low Current Rectification
0.103(2.60)
0.044(1.10)
0.035(0.90)
0.020(0.50)
0.013(0.35)
MECHANICAL DATA
Case: SOT-23, Plastic
Terminals: Solderable per MIL-STD-750, Method 2026
Approx. Weight:
0.0003 ounces,
0.008 grams
Marking Code: 12D
0.079(2.00)
0.070(1.80)
0.008(0.20)
0.003(0.08)
0.004(0.10)MAX.
ABSOLUTE MAXIMUM RATINGS (T
A
=25
O
C )
Parameter
Reverse voltage (reptitive peak)
Reverse voltage (DC)
Maximum average rectified forward current (Note 1)
Forward current surge peak (60Hz
.
1cyc)(Note 1)
Operating Junction and Storage Temperature Range
Symbol
V
RM
V
R
I
O
I
FSM
T
J
,T
STG
Value
25
20
1
3
-55 to +125
Units
V
V
A
A
O
C
ELECTRICAL CHARACTERISTICS (T
A
=25
O
C )
Parameter
F o r w a r d vo l t a g e
R e ve r s e c ur r e nt
Symbol
V
F
I
C o n d itio n s
I
F
=1 A
V
R
= 2 0 V
Min .
-
-
Ty p .
-
-
Max.
0 .4 5
200
U n it
V
µ
A
R
SINGLE
Note : 1.Rating of per diode
REV.0.0-JAN.13.2009
0.086(2.20)
PAGE . 1
RB491D
ELECTRICAL CHARACTERISTIC CURVES (T
A
=25
O
C )
J
J
J
J
J
J
J
J
REV.0.0-JAN.13.2009
PAGE . 2
RB491D
REV.0.0-JAN.13.2009
PAGE . 3
RB491D
MOUNTING PAD LAYOUT
SOT-23
0.035 MIN.
(0.90) MIN.
Unit
：
inch(mm)
0.031 MIN.
(0.80) MIN.
0.043
(1.10)
0.037
(0.95)
0.043
(1.10)
0.106
(2.70)
ORDER INFORMATION
• Packing information
T/R - 12K per 13" plastic Reel
T/R - 3K per 7” plastic Reel
LEGAL STATEMENT
Copyright PanJit International, Inc 2011
The information presented in this document is believed to be accurate and reliable. The specifications and information herein
are subject to change without notice. Pan Jit makes no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose. Pan Jit products are not authorized for use in life support devices or systems. Pan Jit
does not convey any license under its patent rights or rights of others.
REV.0.0-JAN.13.2009
0.078
(2.00)
PAGE . 4
电子工程世界
