Datasheet
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
Schottky Barrier Diode
RB551V-30
lApplication lDimensions (Unit : mm) lLand size figure (Unit : mm)
High frequency rectification
lFeatures
1) Small mold type. (UMD2)
2)
Low VF
3) High reliability.
lStructure
lConstruction
Silicon epitaxial planar
lTaping specifications (Unit : mm)
lAbsolute maximum ratings (Ta= 25°C)
Reverse voltage (repetitive peak)
VRM V
Reverse voltage (DC)
VRV
Average rectified forward current Io A
Forward current surge peak (60Hz1cyc) IFSM A
Junction temperature Tj °C
Storage temperature Tstg °C
Symbol Min. Typ. Max. Unit
VF1- - 0.36 V IF=100mA
VF2- - 0.47 V IF=500mA
Reverse current
IR- - 100 mAVR=20V
Forward voltage
Parameter
Conditions
Parameter
-40 to +125
lElectrical characteristics (Ta = 25°C)
Limits
Unit
30
20
500
2
125
Anode
Cathode
ROHM : UMD2
JEITA : SC-90/A
dot (year week factory)
JEDEC :SOD-323
UMD2
0.3±0.05
0.7±0.2
    0.1
0.1±0.1
    0.05
1.7±0.1
2.5±0.2
1.25±0.1
2.1
0.8MIN.
0.9MIN.
4.0±0.1
2.0±0.05
φ1.55±0.05
1.40±0.1
4.0±0.1
φ1.05
2.75
3.5±0.05
1.75±0.1
8.0±0.2
0.3±0.1
1.0±0.1
2.8±0.1
f1.550.05
f1.05
1/5
2013.04 - Rev.D
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
Data Sheet
RB551V-30
lElectrical characteristic curves
1
10
100
010 20 30
f = 1MHz
400
410
420
430
440
450
AVE : 420.4mV
Tj=25°C
IF=500mA
n=30pcs
0.1
1
10
100
1000
0 100 200 300 400 500 600
Tj = 75°C
Tj = 25°C
Tj = 125°C
Tj = -25°C
0.1
1
10
100
1000
10000
100000
010 20 30
Tj = 75°C
Tj = 25°C
Tj = 125°C
Tj = -25°C
FORWARD CURRENT : IF(mA)
FORWARD VOLTAGE : VF(mV)
VF-IF CHARACTERISTICS
REVERSE CURRENT : IR(mA)
REVERSE VOLTAGE : VR(V)
VR-IR CHARACTERISTICS
CAPACITANCE BETWEEN
TERMINALS : Ct(pF)
REVERSE VOLTAGE : VR(V)
VR-Ct CHARACTERISTICS
FORWARD VOLTAGE : VF(mV)
VF DISPERSION MAP
2/5
2013.04 - Rev.D
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
Data Sheet
RB551V-30
lElectrical characteristic curves
0
20
40
60
80
100
120
140
160
180
200
Tj=25°C
VR=20V
n=30pcs
AVE : 42.7mA
40
50
60
70
80
AVE : 59.5pF
Tj=25°C
f=1MHz
VR=0V
n=10pcs
0
5
10
15
20
AVE : 8.60A
1
10
100
110 100
REVERSE CURRENT : IR(mA)
IR DISPERSION MAP
CAPACITANCE BETWEEN
TERMINALS : Ct(pF)
Ct DISPERSION MAP
PEAK SURGE
FORWARD CURRENT : IFSM(A)
IFSM DISPERSION MAP
8.3ms
IFSM
1cyc.
PEAK SURGE
FORWARD CURRENT : IFSM(A)
NUMBER OF CYCLES
IFSM-CYCLE CHARACTERISTICS
1cyc.
8.3ms
IFSM
8.3ms
3/5
2013.04 - Rev.D
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
Data Sheet
RB551V-30
lElectrical characteristic curves
1
10
100
0.1 1 10 100
1
10
100
1000
0.001 0.1 10 1000
Rth(j-a)
Rth(j-c)
0
0.1
0.2
0.3
0.4
0.5
0 0.2 0.4 0.6 0.8 1
D = 1/2
DC
Sin(θ=180)
0
0.1
0.2
0.3
0.4
0.5
0 5 10 15 20
D = 1/2
DC
Sin(θ=180)
PEAK SURGE
FORWARD CURRENT : IFSM(A)
TIME : t(ms)
IFSM-t CHARACTERISTICS
FORWARD POWER
DISPERSION : PF (W)
AVERAGE RECTIFIED
FORWARD CURRENT : Io(A)
Io-PF CHARACTERISTICS
IFSM
time
TRANSIENT
THERMAL IMPEDANCE : Rth (°C/W)
TIME : t(s)
Rth-t CHARACTERISTICS
1ms
IM=1mA IF=10mA
300ms
time
Mounted on glass epoxy board
REVERSE POWER
DISPERSION : PR (W)
REVERSE VOLTAGE : VR(V)
VR-PR CHARACTERISTICS
4/5
2013.04 - Rev.D
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
Data Sheet
RB551V-30
lElectrical characteristic curves
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
025 50 75 100 125
D = 1/2
DC
Sin(θ=180)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
025 50 75 100 125
D = 1/2
DC
Sin(θ=180)
AVERAGE RECTIFIED
FORWARD CURRENT : Io(A)
AMBIENT TEMPERATURE : Ta(°C)
DERATING CURVE (Io-Ta)
AVERAGE RECTIFIED
FORWARD CURRENT : Io(A)
CASE TEMPERATURE : Tc(°C)
DERATING CURVE (Io-Tc)
T Tj=125°C
D=t/T
t VR
Io
VR=15V
0A
0V
T Tj=125°C
D=t/T
t VR
Io
VR=15V
0A
0V
5/5
2013.04 - Rev.D
R1102
A
www.rohm.com
© 2013 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
The information contained herein is subject to change without notice.
Before you use our Products, please contact our sales representative
and verify the latest specifica-
tions :
Although ROHM is continuously working to improve product reliability and quality, semicon-
ductors can break down and malfunction due to var ious factors.
Therefore, in order to prevent personal injury or fire arising from failure, please take safety
measures such as complying with the derating characteristics, implementing redundant and
fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no
responsibility for any damages arising out of the use of our Poducts beyond the rating specified by
ROHM.
Examples of application circuits, circuit constants and any other information contained herein are
provided only to illustrate the standard usage and operations of the Products. The peripheral
conditions must be taken into account when designing circuits for mass production.
The technical information specified 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 or any other
parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of
such technical information.
The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communi-
cation, consumer systems, gaming/entertainment sets) as well as the applications indicated in
this document.
The Products specified in this document are not designed to be radiation tolerant.
For use of our Products in applications requiring a high degree of reliability (as exemplified
below), please contact and consult with a ROHM representative : transportation equipment (i.e.
cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety
equipment, medical systems, servers, solar cells, and power transmission systems.
Do not use our Products in applications requiring extremely high reliability, such as aerospace
equipment, nuclear power control systems, and submarine repeaters.
ROHM shall have no responsibility for any damages or injury arising from non-compliance with
the recommended usage conditions and specifications contained herein.
ROHM has used reasonable care to ensur the accuracy of the information contained in this
document. However, ROHM does not warrants that such information is error-free, and ROHM
shall have no responsibility for any damages arising from any inaccuracy or misprint of such
information.
Please use the Products in accordance with any applicable environmental laws and regulations,
such as the RoHS Directive. For more details, including RoHS compatibility, please contact a
ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting
non-compliance with any applicable laws or regulations.
When providing our Products and technologies contained in this document to other countries,
you must abide by the procedures and provisions stipulated in all applicable export laws and
regulations, including without limitation the US Export Administration Regulations and the Foreign
Exchange and Foreign Trade Act.
This document, in part or in whole, may not be reprinted or reproduced without prior consent of
ROHM.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)