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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 )
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 W * 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 Plastic sealed Packaging JEDEC Tray IC Pack 200 50 Package quantity Model 2SMES-01 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 Rated load Rated carry current Maximum switching voltage Maximum switching current Maximum switching capacity Resistive load 0.5 mA at 0.5 VDC 100 mA at 10 VDC RF: 30 dBm 0.5 VDC 0.5 mADC 0.25 mW
Terminal Arrangement
+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 345% Rated current (mA) --Must operate voltage (V) 90% max. of rated voltage Must release voltage (V) 10% min. of rated voltage Absolute maximum voltage (V) 40 Rated power consumption (W) 10
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High Frequency Characteristics
Item Isolation Insertion Loss Return Loss Maximum peak power Maximum carry power ------36 dBm 30 dBm 2 GHz 30 dB 1 dB 10 dB ----1 dB (Typ.) 8 GHz 10 GHz --3 dB ------12 GHz
Note: 1. The impedance of the measurement system is 50 . 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 Operating time Release time Insulation resistance Vibration resistance Shock resistance Life expectancy ESD Ambient temperature Ambient humidity Weight V-GND others Destruction Malfunction Destruction Malfunction Mechanical Electrical 1500 m max. 100 s max. 100 s max. 100 M (at 40 VDC) 100 M (at 100 VDC) 10 Hz to 500 Hz 10 G 10 Hz to 500 Hz 10 G 100 G 100 G 100,000,000 Operations min. 100,000,000 Operations min. 100 V (Human body model) Operating: -20C to 85C (with no icing or condensation) Operating: 5% to 85% 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
Engineering Data (for reference)
High Frequency Characteristics
Insertion Loss
Average value (initial) 0.0 -0.5 -1.0 (dB) -1.5 -2.0 -2.5 -3.0 0 -10 -20 -30 (dB) -40 -50 -60 -70 0 3 6 9 Frequency (GHz) 12 15 -80 0 3 6 9 Frequency (GHz) 12 15
Isolation
Average value (initial)
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: 23C 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 800 Contact Resistance Shift (m) 600 400 200 0 -200 -400 -600 -800 -1000 0 10 20 30 40 50 60 70 80 90 100 Operating cycles (x 106 operations)
N = 125 Samples (250 contacts) 0.5 mA at 0.5 mVDC, Hot switch
Electrical Endurance (Pickup Voltage/Release Voltage)
35
Must Operate Voltage (30.6 V = 90%)
30 25 Voltage (V) 20 15 10 5
Must Release Voltage (3.4 V = 10%) Operate Voltage (Ave): Release Voltage (Ave):
N = 125 Samples (250 contacts)
0 0 10 20 30 40 50 60 70 80 90 100 Operating cycles (Million operations)
Ambient Temperature vs. Pickup voltage/Release Voltage
34 32 Pickup/Release Voltage (V) 30 28 26 24 22 20 18 16 -30 -20 -10 0 10 20 30 40 50 60 70
N = 8 Samples Pickup Voltage Release Voltage
80
90 100
Ambient Temperature (C)
316
RF MEMS Switch
2SMES-01
Recommended Soldering Method
T4 T3
* The thickness of the solder paste is to be applied between 150 and 200 m 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 40C. * Do not put the RF MEMS Switch in a cold cleaning bath immediately after soldering.
Temperature (C)
T2 T1
t1
Preheating
t2 Soldering
Time (s)
Measuring position/Item Terminal Upper surface of case Preheating (T1 to T2, t1) 150C to 180C 120 s max. --Soldering (T3, t2) 230C min. 30 s max. --Peak value (T4) 250C max. 255C max.
Example of Drive Circuit for RF MEMS Switch
+Vcc
INPUT 1 Vcont_1 RF_1 Gate Driver R RF_com R RF_2 DRIVER IC Vcont_2 2SMES-01
INPUT 2
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 M 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)
5.20.1 0.7 3.6 2.65 1.35 0.45 0.7
30.1
No.11 0.6 1 pin mark
No.7 0.7
0.45 1.6 0.45 0.6 No.1 0.45 1 2.3
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
1.4 0.7 No.5
1.850.15
0.5
No.1 0.4 0.4
2.2 1.1
No.5 0.4
0.6
1.7
1.5
0.5
No.11
1.45 2.55 3.7 4.9
No.7
0.6
Terminal Arrangement
+V2 RF_1
GND
RF_Com
+V1
RF_2
Evaluation Board Model: 2SMES-01-EVBA
48 3.5 3.5 12.5 2.54 2.54 13 6 3.5 3.5
25
20
25
12.5 3.5 11.5 20 67 Device mounting area Pattern for RF correction (open) Pattern for RF correction (thru) 23 12.5 3.5
318
RF MEMS Switch
2SMES-01
Ground Plane Connections
In case of Coplanar Waveguide In case of Microstrip Line
Via to internal RF ground plane
#11 #7 #11 #7
Via to Internal RF ground plane
#1 #5 #1 #5
Surface RF ground plane
Connect ALL RF ground pads to the surface RF ground plane directly. *RF Ground Pad is designated as
Connect EACH RF ground pad to the internal RF ground plane through the via placed to the RF ground pad.
Safety Precautions
Precautions for Correct Use
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 40C. 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. * 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.
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
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RF MEMS Switch
2SMES-01
Certain Precautions on Specifications and Use
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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 ELECTRONIC COMPONENTS LLC
55 E. Commerce Drive, Suite B Schaumburg, IL 60173
OMRON ON-LINE
Global - http://www.omron.com USA - http://www.components.omron.com
847-882-2288
Cat. No. X302-E-1 08/09 Specifications subject to change without notice Printed in USA
RF MEMS Switch
2SMES-01

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