DA204UM
Switching Diode Data sheet
                                                                       Outline
VRM 20 V    
 
IFM 200 mA  
 
Io100 mA  
 
IFSM 300 mA  
 
 
    
Feature Inner Circuit
High reliability
Small mold type
Application Packaging Specifications
General switching Packing Embossed Tape
Reel Size(mm) 180
Taping Width(mm) 8
Structure Basic Ordering Unit(pcs) 3000
Epitaxial planar Taping Code TL
Marking K
Absolute Maximum Ratings
(Ta = 2C)
Parameter Symbol Conditions Limits Unit
Reverse voltage VR- 20 V
Repetitive peak reverse voltage VRM - 20 V
Average rectified forward current Io- 100 mA
Forward current IFM - 200 mA
Peak forward surge current IFSM t=1μs 300 mA
Power dissipation *    PD- 200 mW
Junction temperature Tj- 150
Storage temperature Tstg - -55 150
*2 elements total
Characteristics (Ta = 2C)    Value per element
Parameter Symbol Conditions Min. Typ. Max. Unit
Forward voltage VFIF
=10mA - - 1.0 V
Reverse current IRVR
=15V - - 0.1 μA
Capacitance between terminals *CtVR
=6.0V f=1.0MHz - - 4.0 pF
Reverse recovery time trr - - - - ns
Cautionstatic electricity
*Capacitanceb/w 1pin and 2pin
                                             
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© 2016 ROHM Co., Ltd. All rights reserved. 1/5  2019/05/15_Rev.001
DA204UM                        Data sheet
Characteristic Curves
                                             
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© 2016 ROHM Co., Ltd. All rights reserved. 2/5 2019/05/15_Rev.001
DA204UM                        Data sheet
Characteristic Curves
                                             
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© 2016 ROHM Co., Ltd. All rights reserved. 3/5 2019/05/15_Rev.001
DA204UM                        Data sheet
Characteristic Curves
                                             
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© 2016 ROHM Co., Ltd. All rights reserved. 4/5 2019/05/15_Rev.001
DA204UM                        Data sheet
Dimensions (SOT-323FL SC-85 UMD3F)
Taping (Unit:mm)
                                             
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© 2016 ROHM Co., Ltd. All rights reserved. 5/5  
2019/05/15_Rev.001
Notice-PGA-E Rev.004
© 2015 ROHM Co., Ltd. All rights reserved.
Notice
Precaution on using ROHM Products
1. Our Products are designed and manufactured for application in ordinary electronic equipment (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), transport
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
CHINA
CLASS
CLASS
CLASS
CLASS
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products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
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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
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[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 Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
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[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (Exclude cases where no-clean type fluxes is used.
However, recommend sufficiently about the residue.) ; 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
4. The Products are not subject to radiation-proof design.
5. Please verify and confirm characteristics of the final or mounted products in using the Products.
6.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 depending on ambient temperature. When used in sealed area, confirm that it is the use in
the range that does not exceed the maximum junction temperature.
8.Confirm that operation temperature is within the specified range described in the product specification.
9.ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2. 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 Rev.004
© 2015 ROHM Co., Ltd. All rights reserved.
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.
2. 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
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incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
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).
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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
2. 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.
3. 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.
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DatasheetDatasheet
Notice – WE Rev.001
© 2015 ROHM Co., Ltd. All rights reserved.
General Precaution
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ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any
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