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
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
34±5%
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 (μW)
10
RF MEMS Switch
2SMES-01
313
■
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
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
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 mΩ max.
100
μs
max.
100
μs
max.
100 MΩ (at 40 VDC)
100 MΩ (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:
−20°C
to 85°C (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: 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
800
Contact Resistance Shift (mΩ)
600
400
200
0
−200
−400
−600
−800
−1000
0
10
20
30
40
50
60
70
80
90
100
Operating cycles (x 10
6
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
μm
and the land pattern should be based on OMRON's recom-
mended PCB pattern.
•
To maintain the correct soldering joint shown in the following dia-
gram, 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 immedi-
ately after soldering.
Temperature (°C)
T2
T1
t
1
Preheating
t
2
Soldering
Time (s)
Measuring position/Item
Terminal
Upper surface of case
Preheating (T1 to T2, t
1
)
150°C to 180°C
120 s max.
---
Soldering (T3, t
2
)
230°C min.
30 s max.
---
Peak value (T4)
250°C max.
255°C 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 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
