RF MEMS Switch
2SMES-01
Miniature, 10 GHz Band (typical)
SPDT (transfer contacts) RF MEMS Switch
• Superior high-frequency characteristics at
10 GHz typical/8 GHz rated (50 Ω)
➜ Isolation of 30 dB
➜ Insertion loss of 1 dB
• Ultra-miniature 5.2 x 3.0 x 1.8 mm (L x W x H).
• Contact Reliability 100 million operations
(0.5 mA at 0.5 VDC resistive load)
• Rated power consumption of 10 μW
• RoHS Compliant
Application Examples
• Automatic test equipment
• RF measurement instrument
• RF component
Ordering Information
Standard Models with Surface-mounting Terminals
Classification
Single-side stable
Structure
Packaging
Plastic sealed
Package quantity
Model
JEDEC Tray
200
2SMES-01
IC Pack
50
2SMES-01CT
Note: 1. This RF MEMS Switch was developed on the assumption of cold switching. Do not exceed ratings by hot switching (greater than 0.5 mA
at 0.5 VDC resistive load).
2. This RF MEMS Switch is easily damaged by static electricity. When handling the RF MEMS Switch, take countermeasures against static
electricity. Contact OMRON for handling guidelines.
Specifications
■ Contact Ratings
Load
■ Terminal Arrangement
Resistive load
Rated load
0.5 mA at 0.5 VDC
Rated carry current
100 mA at 10 VDC
RF: 30 dBm
Maximum switching voltage
0.5 VDC
Maximum switching current
0.5 mADC
Maximum switching capacity
0.25 mW
+V2
RF_1
GND
RF_Com
+V1
RF_2
Note: The ratings are for a V.S.W.R of 1.2 max. at the load.
■ Actuator Ratings
Rated voltage (VDC)
DC
34±5%
Rated current (mA)
---
Must operate
voltage (V)
Must release
voltage (V)
90% max. of rated
voltage
10% min. of rated
voltage
Absolute maximum
voltage (V)
40
RF MEMS Switch
Rated power
consumption (μW)
10
2SMES-01
313
■ High Frequency Characteristics
Item
2 GHz
8 GHz
10 GHz
12 GHz
Isolation
---
30 dB
Insertion Loss
---
1 dB
---
Return Loss
---
10 dB
---
Maximum peak power
36 dBm
---
---
Maximum carry power
30 dBm
---
---
1 dB (Typ.)
Note: 1. The impedance of the measurement system is 50 Ω.
2. The above values are initial values.
3. These values are for a V.S.W.R. of 1.2 max. at the load.
■ Characteristics
Item
Single-side stable model
2SMES-01
Contact resistance
1500 mΩ max.
Operating time
100 μs max.
Release time
100 μs max.
Insulation
resistance
V-GND
100 MΩ (at 40 VDC)
others
100 MΩ (at 100 VDC)
Vibration
resistance
Destruction
10 Hz to 500 Hz 10 G
Malfunction
10 Hz to 500 Hz 10 G
Shock
resistance
Destruction
100 G
Malfunction
100 G
Life
expectancy
Mechanical
100,000,000 Operations min.
Electrical
100,000,000 Operations min.
ESD
100 V (Human body model)
Ambient temperature
Operating: −20°C to 85°C (with no icing or condensation)
Ambient humidity
Operating: 5% to 85%
Weight
Approx. 0.1 g
Note: 1. The above values are initial values.
2. The contact resistance was measured with 10 mA at 1 VDC with a voltage drop method.
314
RF MEMS Switch
2SMES-01
3 dB
Engineering Data (for reference)
■ High Frequency Characteristics
Insertion Loss
Isolation
Average value (initial)
Average value (initial)
0
0.0
−10
−0.5
−20
−1.0
−30
(dB) −40
(dB) −1.5
−50
−2.0
−60
−2.5
−3.0
−70
0
3
6
9
Frequency (GHz)
12
15
−80
0
3
6
9
Frequency (GHz)
12
15
Return Loss
Average value (initial)
0
−10
−20
(dB)
−30
−40
−50
0
3
6
9
Frequency (GHz)
12
15
Note: 1. Ambient temperature condition: 23°C
2. These high-frequency characteristics are measured with RF probe (without a mounting board).
3. The high-frequency characteristics depend on the mounting board. Be sure to check operation including durability in actual equipment
before use.
RF MEMS Switch
2SMES-01
315
Electrical Endurance (Contact Resistance Shift)
1000
0.5 mA at 0.5 mVDC, Hot switch
Contact Resistance Shift (mΩ)
800
600
400
200
0
−200
−400
−600
N = 125 Samples (250 contacts)
−800
−1000
0
10
20
30
40
50
60
70
80
90
100
Operating cycles (x 106 operations)
Electrical Endurance (Pickup Voltage/Release Voltage)
35
Must Operate Voltage (30.6 V = 90%)
30
Voltage (V)
25
20
15
Operate Voltage (Ave):
Release Voltage (Ave):
10
N = 125 Samples (250 contacts)
5
Must Release Voltage (3.4 V = 10%)
0
0
10
20
30
40
50
60
70
80
90
100
Operating cycles (Million operations)
Ambient Temperature vs. Pickup voltage/Release Voltage
34
Pickup/Release Voltage (V)
32
Pickup Voltage
Release Voltage
30
28
26
24
22
20
18
16
−30
N = 8 Samples
−20
−10
0
10
20
30
40
50
Ambient Temperature (°C)
316
RF MEMS Switch
2SMES-01
60
70
80
90 100
Temperature (°C)
Recommended Soldering Method
• The thickness of the solder paste is to be applied between 150 and
200 μm and the land pattern should be based on OMRON's recommended PCB pattern.
• To maintain the correct soldering joint shown in the following diagram, we recommend applying solder with the soldering conditions
shown on the left.
• Check the soldering in the actual mounting conditions before use.
• When washing the product after soldering the RF MEMS Switch to
a print circuit board, use a water-based solvent or alcohol-based
solvent and keep the solvent temperature to less than 40°C.
• Do not put the RF MEMS Switch in a cold cleaning bath immediately after soldering.
T4
T3
T2
T1
t1
t2
Soldering
Preheating
Time (s)
Measuring position/Item
Preheating (T1 to T2, t1)
Soldering (T3, t2)
Peak value (T4)
Terminal
150°C to 180°C
120 s max.
230°C min.
30 s max.
250°C max.
Upper surface of case
---
---
255°C max.
Example of Drive Circuit for RF MEMS Switch
+Vcc
INPUT 1
Vcont_1
Gate Driver
RF_1
R
RF_com
R
INPUT 2
RF_2
DRIVER IC
Vcont_2
2SMES-01
Note: 1. Operate the driving voltage with the high-side switch (Vcont_1 & Vcont_2, not ground).
2. It is necessary to discharge the charge that accumulates in the electrostatic actuator to turn off the RF MEMS Switch because this product
is a MEMS Switch of an electrostatic drive type. Install the electrical discharge circuit in the drive circuit of the RF MEMS Switch with a
resistance of 1 MΩ or less. Without an electrical discharge circuit, the RF MEMS Switch might not turn off, and the contacts could stick.
For Reference Only
High frequency characteristics - method and substrate for measurement
Agilent N5230
Vector Network
Analyzer
2SMES-01
Note: Substrate: t = 1.6 mm Rogers 4350B (Dielectric constant at 10 GHz: 3.48)
RF MEMS Switch
2SMES-01
317
Dimensions
Note: All units are in millimeters unless otherwise indicated.
2SMES-01
Mounting PAD Dimensions
12-Terminal Land Grid Array (LGA)
(Top View)
0.7
5.2±0.1
No.11
3±0.1
0.7
3.6
2.65
1.35
0.45
No.7
0.6
0.7
0.45
1 pin mark
1.6
1.4
0.45
0.7
0.6
1.85±0.15
0.45
No.1
2.2
1.1
No.1
0.4
0.5
No.5
0.4
0.4
1.7
0.5
No. Pin Arrangement
GND
1
GND
2
RF_com
3
GND
4
GND
5
RF_2
6
GND
7
Vcont_2
8
GND
9
10 Vcont_1
11 GND
12 RF_1
0.6
No.7
No.5
0.6
1.5
1.45
2.55
3.7
No.11
1
2.3
4.9
Terminal Arrangement
+V2
RF_1
GND
RF_Com
+V1
RF_2
Evaluation Board Model: 2SMES-01-EVBA
48
6
3.5
13
3.5
3.5
3.5
12.5
2.54
25
25
20
2.54
12.5
3.5
3.5
20
11.5
23
12.5
67
Device mounting area
318
Pattern for RF correction (open)
RF MEMS Switch
2SMES-01
Pattern for RF correction (thru)
Ground Plane Connections
In case of Microstrip Line
In case of Coplanar Waveguide
Via to internal RF
ground plane
#11
#7
#11
#7
Via to Internal RF ground plane
#1
#5
#5
#1
Surface RF ground plane
Connect ALL RF ground pads to the
surface RF ground plane directly.
Connect EACH RF ground pad to the
internal RF ground plane through the
via placed to the RF ground pad.
*RF Ground Pad is designated as
Safety Precautions
■ Precautions for Correct Use
• Turn off power when doing the exchange and the wiring work of the
RF MEMS Switch.
• Do not touch the terminal of the RF MEMS Switch when energized.
RF MEMS Switch Handling
• Use the RF MEMS Switch as soon as possible after opening the
moisture-proof package (within one week). If the RF MEMS Switch
is left for a long time after opening the moisture-proof package, the
appearance may suffer and seal failure may occur after the solder
mounting process. To store the RF MEMS Switch after opening the
moisture-proof package, place it into the original package and seal
the package with adhesive tape.
• When washing the product after soldering the RF MEMS Switch to
a print circuit board, use a water-based solvent or alcohol-based
solvent and keep the solvent temperature to less than 40°C. Do not
put the RF MEMS Switch in a cold cleaning bath immediately after
soldering.
• Do not use an Ultrasonic wash.
• This RF MEMS Switch is easily damaged by static electricity. When
handling the RF MEMS Switch, take countermeasure against static
electricity (100 V or less). Contact OMRON for additional guidelines.
• When handling the RF MEMS Switch, do not drop.
• Do not apply force resulting in the product to transform and change
in quality.
Long-term, Continuous ON Contacts
• Using the RF MEMS Switch in a circuit where the RF MEMS Switch
will be ON continuously for long periods (more than 24 hours)
(rather than switching) can lead to unstable contacts. If a singleside stable model must be used in this kind of circuit, we recommend adding fail-safe circuits in case the contact fails.
Claw Securing Force During Automatic
Mounting
• During automatic insertion of RF MEMS Switches, be sure to set
the securing force of each claw to the following so that the RF
MEMS Switch's characteristics will be maintained.
Direction C: 2.0 N max.
Environmental Conditions for Usage,
Storage, and Transport
• Avoid direct sunlight when using, storing, or transporting the RF
MEMS Switch and maintain normal temperature, humidity, and
pressure conditions.
• Avoid caustic gases when using, storing, or transporting the RF
MEMS Switch.
Coating
• Do not coat the RF MEMS Switch when it is mounted to the print
circuit board. Do not wash the print circuit board after the RF
MEMS Switch is mounted using detergent containing silicone. Otherwise, the detergent may remain on the surface of the RF MEMS
Switch.
RF MEMS Switch
2SMES-01
319
MEMO
320
RF MEMS Switch
2SMES-01
Omron Electronic Components, LLC
Terms and Conditions of Sales
I. GENERAL
1. Definitions: The words used herein are defined as follows.
(a) Terms:
These terms and conditions
(b) Seller:
Omron Electronic Components LLC and its subsidiaries
(c) Buyer:
The buyer of Products, including any end user in section III through VI
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OMRON PRODUCT IS FIT AND SUFFICIENT FOR USE IN A MOTORIZED VEHICLE
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SYSTEM, (F) MATERIALS OR SUBSTANCES OR (G) OPERATING ENVIRONMENT.
Buyer acknowledges that it alone has determined that the Products will meet their
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2. Use with Attention: The followings are some examples of applications for which
particular attention must be given. This is not intended to be an exhaustive list of all
possible use of any Product, nor to imply that any use listed may be suitable for any
Product:
(a) Outdoor use, use involving potential chemical contamination or electrical
interference.
(b) Use in consumer Products or any use in significant quantities.
(c) Energy control systems, combustion systems, railroad systems, aviation systems,
medical equipment, amusement machines, vehicles, safety equipment, and
installations subject to separate industry or government regulations.
(d) Systems, machines, and equipment that could present a risk to life or property.
3. Prohibited Use: NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING
SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM
AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE
PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE
WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
4. Motorized Vehicle Application: USE OF ANY PRODUCT/S FOR A MOTORIZED
VEHICLE APPLICATION MUST BE EXPRESSLY STATED IN THE SPECIFICATION BY
SELLER.
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a programmable Product.
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3. Performance Data: Performance data is provided as a guide in determining suitability
and does not constitute a warranty. It may represent the result of Seller's test conditions,
and the users must correlate it to actual application requirements.
4. Change In Specifications: Product specifications and descriptions may be changed at
any time based on improvements or other reasons. It is Seller’s practice to change part
numbers when published ratings or features are changed, or when significant
engineering changes are made. However, some specifications of the Product may be
changed without any notice.
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has been carefully checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
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not invalidate any other provision.
RF MEMS Switch
2SMES-01
Certain Precautions on Specifications and Use
1. Suitability for Use. Seller shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in
Buyer's application or use of the Product. At Buyer's request, Seller will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not
sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use.
Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer's application, product or system. Buyer
shall take application responsibility in all cases but the following is a nonexhaustive list of applications for which particular attention must be given:
(i) Outdoor use, uses involving potential chemical contamination or electrical
interference, or conditions or uses not described in this document.
(ii) Energy control systems, combustion systems, railroad systems, aviation
systems, medical equipment, amusement machines, vehicles, safety
equipment, and installations subject to separate industry or government
regulations.
(iii) Use in consumer products or any use in significant quantities.
(iv) Systems, machines and equipment that could present a risk to life or
property. Please know and observe all prohibitions of use applicable to this
product.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS
RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM
AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT
THE OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE
INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
2. Programmable Products. Seller shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
3. Performance Data. Performance data given in this publication is provided as
a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Seller's test conditions, and the users must
correlate it to actual application requirements. Actual performance is subject to
Seller's Warranty and Limitations of Liability.
4. Change in Specifications. Product specifications and accessories may be
changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed,
or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for
your application. Please consult with your Seller representative at any time to
confirm actual specifications of purchased Product.
5. Errors and Omissions. The information in this publication has been carefully
checked and is believed to be accurate; however, no responsibility is assumed
for clerical, typographical or proofreading errors, or omissions.
6. RoHS Compliance. Where indicated, our products currently comply, to the
best of our knowledge as of the date of this publication, with the requirements
of the European Union's Directive on the Restriction of certain Hazardous
Substances ("RoHS"), although the requirements of RoHS do not take effect
until July 2006. These requirements may be subject to change. Please consult
our website for current information.
Complete “Terms and Conditions of Sale” for product purchase and use are on Omron’s website
at http://www.components.omron.com – under the “About Us” tab, in the Legal Matters section.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
OMRON ON-LINE
OMRON ELECTRONIC
COMPONENTS LLC
Global - http://www.omron.com
USA - http://www.components.omron.com
55 E. Commerce Drive, Suite B
Schaumburg, IL 60173
847-882-2288
Cat. No. X302-E-1
RF MEMS Switch
08/09
Specifications subject to change without notice
2SMES-01
Printed in USA