RB721Q-40
30 mA Rectifier
40 Volts
Features
• High speed switching
• Small pitch enables insertion on PCBs.
• Low VF and low IR
Maximum Ratings
Symbol Rating Rating Unit
VRM Peak Reverse Voltage 40 V
VR DC Reverse Voltage 40 V
IO Mean Rectifying Current 30 mA
IFSM Peak Forward Surge Current 200 mA
TJ Junction Temperature -55 to +150 OC
TSTG Storage Temperature -55 to +150 OC
Electrical Characteristics @ 25OC Unless Otherwise Specified
Symbol Parameter Min Typ Max Units
VF Forward Voltage
(IF=1.0mAdc) --- --- 0.37 Vdc
IR Reverse Current
(VR=25Vdc) 1SR139-400 --- --- 0.5 uAdc
CT Capacitance Between Terminals
(VR=1.0V, f=1.0MHz) --- 2.0 --- pF
DIMENSIONS
omponents
20736 Marilla Street Chatsworth
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MCC TM
Micro Commercial Components
www.mccsemi.com
1 of 3
Revision: B 2013/01/01
• Lead Free Finish/Rohs Compliant (Note1) ("P"Suffix designates
Compliant. See ordering information)
• Moisture Sensitivity Level 1
Note: 1. Lead in Glass Exemption Applied, see EU Directive Annex 7(C)-I.
• Halogen free available upon request by adding suffix "-HF"
0
Ta=75°C
1n
10n
100n
1µ
10µ
100µ
Ta=100°C
Ta=50
°C
Ta=25°C
pulse measurement
Typ.
5 101520253035
REVERSE CURRENT : I
R
(A)
REVERSE VOLTAGE : V
R
(V)
Fig.2 Reverse characteristics
pulse measurement
0
1µ
0.1 0.2 0.3 0.4 0.5 0.6 0.7
Ta=25°C
10µ
100µ
1m
10m
100m
Ta=0°C
Ta=−40
°C
Typ.
Ta=75°C
Ta=50°C
FORWARD CURRENT : I
F
(A)
FORWARD VOLTAGE : V
F
(V)
Fig.1 Forward characteristics
0 5 10 15 20 25
0.1
1
10
100
REVERSE VOLTAGE : VR (V)
CAPACITANCE BETWEEN TERMINALS : C
T
(pF)
Fig.3 Capacitance between
terminals characteristics
0
0.1
0.2
0.5
1
2
5
10
10
IR=10mA
I
rr
=1mA
20 30
REVERSE RECOVERY TIME : t
rr
(ns)
FORWARD CURRENT : I
F
(mA)
Fig.4 Reverse recovery time
characteristics
0
0
20
40
60
80
100
25 50 75 100 125
Io CURRENT (%)
AMBIENT TEMPERATURE : Ta (°C)
Fig.5 Derating curve
(mounting on glass epoxy PCBs)
MCC
RB721Q-40
TM
Micro Commercial Components
www.mccsemi.com
2 of 3
Revision: B 2013/01/01
MCC TM
Micro Commercial Components
www.mccsemi.com
3 of 3
Revision: B 2013/01/01
Device Packing
Part Number-TP Tape&Reel: 10Kpcs/Reel
Part Number-AP Ammo Packing: 5Kpcs/Ammo Box
Part Number-BP Bulk: 100Kpcs/Carton
Ordering Information :
***IMPORTANT NOTICE***
Micro Commercial Components Corp. reserves the right to make changes without further notice to any product herein to
make corrections, modifications , enhancements , improvements , or other changes . Micro Commercial Components
Corp . does not assume any liability arising out of the application or use of any product described herein; neither does it
convey any license under its patent rights ,nor the rights of others . The user of products in such applications shall assume all
risks of such use and will agree to hold Micro Commercial Components Corp . and all the companies whose products are
represented on our website, harmless against all damages.
***LIFE SUPPORT***
MCC's products are not authorized for use as critical components in life support devices or systems without the express written
approval of Micro Commercial Components Corporation.
***CUSTOMER AWARENESS***
Counterfeiting of semiconductor parts is a growing problem in the industry. Micro Commercial Components (MCC) is taking
strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. MCC strongly encourages
customers to purchase MCC parts either directly from MCC or from Authorized MCC Distributors who are listed by country on
our web page cited below. Products customers buy either from MCC directly or from Authorized MCC Distributors are genuine
parts, have full traceability, meet MCC's quality standards for handling and storage. MCC will not provide any warranty
coverage or other assistance for parts bought from Unauthorized Sources. MCC is committed to combat this global
problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized
distributors.
Note : Adding "-HF" suffix for halogen free, eg. Part Number-TP-HF
