Data Sheet
Schottky barrier diode
RB085T-90
Applications
Switching power supply
Dimensions
(Unit : mm)
Structure
3) High reliability
Construction
Silicon epitaxial planer
ot
Absolute
maximum ratings
(Ta=25°C)
Parameter
Reverse voltage (repetitive peak)
Reverse voltage (DC)
N
Average rectified forward current (*1)
Forward current surge peak (60Hz / 1cyc) (*1)
Junction temperature
Storage temperature
(*1)Business frequencies, Rating of R-load, 1/2 Io per diode, Tc=122C
Electrical
characteristic
(Ta=25°C)
Parameter
Forward voltage
Reverse current
Thermal impedance
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Features
1) Cathode common type.
(TO-220)
2) Low I
R
R
Symbol
V
RM
V
R
Io
I
FSM
Tj
Tstg
Limits
90
90
10
100
150
40
to
150
Unit
V
V
A
A
C
C
Symbol
V
F
I
R
jc
Min.
-
-
-
Typ.
-
-
-
Max.
0.83
150
2.5
Unit
V
A
C/W
1/3
or
(1) (2) (3)
Conditions
I
F
=5A
V
R
=90
junction to case
2011.04 - Rev.D
RB085T-90
Electrical
characteristic curves
Data Sheet
10
Ta=150C
100000
10000
Ta=150C
Ta=125C
Ta=75C
1000
f=1MHz
FORWARD CURRENT:I
F
(A)
1
1000
100
Ta=75C
0.1
CAPACITANCE BETWEEN
TERMINALS:Ct(pF)
Ta=125C
Ta=25C
Ta=-25C
REVERSE CURRENT:I
R
(uA)
100
Ta=25C
10
1
0.1
0.01
Ta=-25C
10
0.001
0
100 200 300 400 500 600 700 800 900
FORWARD VOLTAGE : V
F
(mV)
V
F
-I
F
CHARACTERISTICS
1
0
10
20
30
40
50
60
70
80
90
0
5
790
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200
180
160
140
120
100
550
540
530
520
510
500
490
480
470
460
450
REVERSE VOLTAGE : V
R
(V)
V
R
-I
R
CHARACTERISTICS
REVERSE VOLTAGE:V
R
(V)
V
R
-Ct CHARACTERISTICS
FORWARD VOLTAGE:V
F
(mV)
REVERSE CURRENT:I
R
(uA)
780
770
760
80
60
40
20
750
AVE:14.3uA
CAPACITANCE BETWEEN
TERMINALS:Ct(pF)
Ta=25C
I
F
=5A
n=30pcs
Ta=25C
V
R
=90V
n=30pcs
AVE:766.6mV
740
0
V
F
DISPERSION MAP
IR DISPERSION MAP
300
250
200
150
100
50
0
30
25
20
15
10
1000
REVERSE RECOVERY TIME:trr(ns)
PEAK SURGE
FORWARD CURRENT:I
FSM
(A)
Ifsm
1cyc
PEAK SURGE
FORWARD CURRENT:I
FSM
(A)
8.3ms
Ta=25C
I
F
=0.5A
I
R
=1A
Irr=0.25*I
R
n=10pcs
100
AVE:136.0A
5
0
AVE:7.40ns
10
1
R
I
FSM
DISPERSION MAP
trr DISPERSION MAP
10
NUMBER OF CYCLES
I
FSM
-CYCLE CHARACTERISTICS
1000
100
Mounted on epoxy board
IM=100mA
I
F
=5A
15
ot
TRANSIENT
THAERMAL IMPEDANCE:Rth (℃/W)
PEAK SURGE
FORWARD CURRENT : I
FSM
(A)
Ifsm
time
10
Rth(j-a)
FORWARD POWER
DISSIPATION:Pf(W)
t
300us
1ms
10
Sin(θ=180)
100
N
1
Rth(j-c)
5
10
1
10
TIME:t(ms)
I
FSM
-t CHARACTERISTICS
100
0.1
0.001
0
0.01
0.1
1
10
100
1000
0
5
10
15
20
TIME:t(s)
Rth-t CHARACTERISTICS
AVERAGE RECTIFIED
FORWARD CURRENT : Io(A)
Io-Pf CHARACTERISTICS
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© 2011 ROHM Co., Ltd. All rights reserved.
2/3
or
10
15
20
25
30
Ta=25C
f=1MHz
V
R
=0V
n=10pcs
AVE:498.5pF
Ct DISPERSION MAP
Ifsm
8.3ms
8.3ms
1cyc
100
D=1/2
DC
0.01
2011.04 - Rev.D
RB085T-90
Data Sheet
10
30
0A
Io
30
0A
Io
t
20
DC
D=1/2
10
Sin(θ=180)
T
V
R
D=t/T
V
R
=45V
Tj=150C
AVERAGE RECTIFIED
FORWARD CURRENT:Io(A)
REVERSE POWER
DISSIPATION:P
R
(W)
t
T
6
Sin(θ=180)
4
D=1/2
DC
2
20
DC
D=1/2
D=t/T
V
R
=45V
Tj=150C
10
Sin(θ=180)
AVERAGE RECTIFIED
FORWARD CURRENT:Io(A)
8
0V
V
R
0V
0
0
10
20
30
40
50
60
70
80
90
0
0
25
50
75
100
125
150
0
0
25
30
25
20
15
10
5
0
N
ot
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© 2011 ROHM Co., Ltd. All rights reserved.
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No break at 30kV
AVE:5.30kV
C=200pF
R=0
C=100pF
R=1.5k
ESD DISPERSION MAP
REVERSE VOLTAGE : V
R
(V)
VR-P
R
CHARACTERISTICS
AMBIENT TEMPERATURE : Ta(C)
Derating Curve"(Io-Ta)
CASE TEMPARATURE:Tc(C)
Derating Curve"(Io-Tc)
ELECTROSTATIC
DISCHARGE TEST ESD(KV)
R
3/3
or
50
75
100
125
150
2011.04 - Rev.D
Datasheet
Notice
Precaution on using ROHM Products
1.
Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
(Note 1)
, transport
intend to use our Products in devices requiring extremely high reliability (such as medical equipment
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific
Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
2.
ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
Our Products are designed and manufactured for use under standard conditions and not under any special or
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any
special or extraordinary environments or conditions. If you intend to use our Products under any special or
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of
product performance, reliability, etc, prior to use, must be necessary:
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl
2
,
H
2
S, NH
3
, SO
2
, and NO
2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
3.
5.
6.
Please verify and confirm characteristics of the final or mounted products in using the Products.
N
ot
In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7.
De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
Confirm that operation temperature is within the specified range described in the product specification.
ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
8.
9.
Precaution for Mounting / Circuit board design
1.
2.
When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must
be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products,
please consult with the ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice-PGA-E
© 2015 ROHM Co., Ltd. All rights reserved.
R
4.
The Products are not subject to radiation-proof design.
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Rev.001
Datasheet
Precautions Regarding Application Examples and External Circuits
1.
If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
2.
Precaution for Electrostatic
Precaution for Storage / Transportation
1.
Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
2.
3.
4.
Precaution for Product Label
Precaution for Disposition
QR code printed on ROHM Products label is for ROHM’s internal use only.
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign
trade act, please consult with ROHM in case of export.
1.
All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data.
ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the
Products with other articles such as components, circuits, systems or external equipment (including software).
No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM
will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to
manufacture or sell products containing the Products, subject to the terms and conditions herein.
This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
N
ot
2.
3.
Other Precaution
1.
2.
3.
4.
Notice-PGA-E
© 2015 ROHM Co., Ltd. All rights reserved.
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Precaution Regarding Intellectual Property Rights
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This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
or
Rev.001
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