www.rohm.com
©2011 ROHM Co., Ltd. All rights reserved.
Schottky Barrier Diode
RB471E
Applications Dimensions (Unit : mm) Land size figure (Unit : mm)
Low current rectification
Features
1) Small mold type. (SMD5)
2) High reliability.
Construction Structure
Silicon epitaxial planar
Taping specifications (Unit : mm)
Absolute maximum ratings (Ta=25°C)
Symbol Unit
VRM V
VRV
Io A
IFSM A
Tj °C
Tstg °C
(*1) Rating of per diode
Electrical characteristics (Ta=25°C)
Symbol Min. Typ. Max. Unit
VF1- - 0.55 V IF=100mA
VF2- - 0.34 V IF=10mA
IR--30μAV
R=10V
Ct - - 6 pF VR=10V , f=1MHz
Capacitance between terminals
Storage temperature 40 to 125
ConditionsParameter
Forward voltage
Reverse current
Forward current surge peak (60Hz・1cyc) (*1) 1
Junction temperature 125
Reverse voltage (DC) 40
Average rectified forward current (*1) 0.1
Parameter Limits
Reverse voltage (repetitive peak) 40
ROHM : SMD5
JEITA : SC-74A
week code
2.9± 0.2
2.8±0.2
1.9± 0.2
1.6 ＋0 . 2
－0 .1
0.95 0.9 5
各リードとも同寸法
0～0.1
(5) (3)
(1)
(4)
(2)
0.3～0.6
0.15 ±0.1
0.06
1.1±0.2
0 .1
0.8± 0.1
0.3
＋0.1
－0.05
Each lead has same dimension
SMD5
0.8MIN.
1.0MIN.
0.45
0.35
1.9
0.95 0.95
0.45 0.35
0.6
2.4
3.2±0.1 4.0±0.1
4.0±0.1 2.0±0.05 φ1.5±0.1
0
3.5±0.05 1.75±0.1
8.0±0.2
φ1.0MIN
3.2±0.1
1.35±0.1
3.2±0.1
0.3±0.1
5.5±0.2
0～0.5
1/3 2011.04 - Rev.B
Data Sheet
www.rohm.com
©2011 ROHM Co., Ltd. All rights reserved.
RB471E
0
5
10
15
0.1 1 10 100
8.3ms
Ifsm 1cyc
0
5
10
15
20
25
30
FORWARD VOLTAGE：VF(mV)
VF-IF CHARACTERISTICS
FORWARD CURRENT:IF(mA)
REVERSE CURRENT:IR(uA)
REVERSE VOLTAGE：VR(V)
VR-IR CHARACTERISTICS
CAPACITANCE BETWEEN
TERMINALS:Ct(pF)
REVERSE VOLTAGE:VR(V)
VR-Ct CHARACTERISTICS
VF DISPERSION MAP
FORWARD VOLTAGE:VF(mV)
REVERSE CURRENT:IR(uA)
IR DISPERSION MAP
CAPACITANCE BETWEEN
TERMINALS:Ct(pF)
Ct DISPERSION MAP IFSM DISRESION MAP
PEAK SURGE
FORWARD CURRENT:IFSM(A)
PEAK SURGE
FORWARD CURRENT:IFSM(A)
NUMBER OF CYCLES
IFSM-CYCLE CHARACTERISTICS
PEAK SURGE
FORWARD CURRENT:IFSM(A)
TIME:t(s)
IFSM-t CHARACTERISTICS
TIME:t(ms)
Rth-t CHARACTERISTICS
TRANSIENT
THAERMAL IMPEDANCE:Rth (℃/W)
trr DISPERSION MAP
FORWARD VOLTAGE:VF(mV)
VF DISPERSION MAP
REVERSE RECOVERY TIME:trr(ns)
0.01
0.1
1
10
100
0 100 200 300 400 500 600 0.01
0.1
1
10
100
1000
10000
0 5 10 15 20 25 30 35
1
10
100
0102030
f=1MHz
420
430
440
450
460
470
AVE:439.5mV
Ta=25℃
IF=100mA
n=30pcs
260
270
280
290
300
310
AVE:281.5mV
Ta=25℃
IF=10mA
n=30pcs
0
5
10
15
20
25
30
Ta=25℃
VR=10V
n=10pcs
AVE:2.548uA
0
5
10
15
20
AVE:5.50A
AVE:6.20ns
0
5
10
15
0.1 1 10 100
8.3ms
Ifsm
1cyc
8.3ms
1
10
100
1000
0.001 0.1 10 1000
Rth(j-a)
Rth(j-c)
Rth(j-a)
Rth(j-c)
Ta=-25℃
Ta=125℃
Ta=75℃
Ta=25℃
Ta=-25℃
Ta=125℃
Ta=25℃
Ta=75℃
8.3ms
Ifsm 1cyc
Ta=25℃
IF=0.5A
IR=1A
Irr=0.25*IR
n=10pcs
1ms
IM=1mA IF=10mA
300us
time
Mounted on epoxy board
0
1
2
3
4
5
6
7
8
9
10
AVE:5.10pF
Ta=25℃
f=1MHz
VR=10V
n=10pcs
2/3 2011.04 - Rev.B
Data Sheet
www.rohm.com
©2011 ROHM Co., Ltd. All rights reserved.
RB471E
0
0.05
0.1
0.15
0.2
0.25
0.3
0 25 50 75 100 125
Per chip
FORWARD POWER
DISSIPATION:Pf(W)
AVERAGE RECTIFIED
FORWARD CURRENT：Io(A)
Io-Pf CHARACTERISTICS
REVERSE POWER
DISSIPATION:P
R
(W)
REVERSE VOLTAGE:VR(V)
VR-P
R
CHARACTERISTICS
AMBIENT TEMPERATURE:Ta(℃)
Derating Curveﾞ(Io-Ta)
AVERAGE RECTIFIED
FORWARD CURRENT:Io(A)
AVERAGE RECTIFIED
FORWARD CURRENT:Io(A)
CASE TEMPARATURE:Tc(℃)
Derating Curveﾞ(Io-Tc)
0
0.02
0.04
0.06
0.08
0.1
00.10.2
Per chip
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0102030
Per chip
0
0.05
0.1
0.15
0.2
0.25
0.3
0 25 50 75 100 125
Per chip
DC
D=1/2
Sin(θ＝180)
Sin(θ＝180)
DC
D=1/2
Sin(θ＝180)
DC
D=1/2
Sin(θ＝180)
DC
D=1/2
TTj=125℃
D=t/T
tVR
Io
VR=15V
0A
0V
TTj=125℃
D=t/T
tVR
Io
VR=15V
0
A
0V
3/3 2011.04 - Rev.B
R1120
A
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
Notice
ROHM Customer Support System
http://www.rohm.com/contact/
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specied herein is subject to change for improvement without notice.
The content specied herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specied in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specied herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specied in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, ofce-automation equipment, commu-
nication devices, electronic appliances and amusement devices).
The Products specied in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, re or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, re control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-
controller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specied herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
