1
D2RV Reed Miniature Basic Switch
High Reliability for Micro Load
Applications, Even in Adverse
Atmospheres Dust, High Humidity,
Silicon Gas, Etc.)
■The reed switch offers exceptional contact reliabil-
ity in micro load applications.
■Same mounting pitch as for the V Miniature Basic
Switch.
■Long life expectancy with a bounce time of 1 ms
max.
Ordering Information
■Model Number Legend
1. Actuator
None: Pin plunger
L11: Short hinge lever
L: Hinge lever
L13: Simulated roller lever
L22: Short hinge roller lever
L2: Hinge roller lever
2. Maximum Operating Force
None: 0.49 N {50 gf}
E: 0.25 N {25 gf}
G: 0.98 N {100 gf}
Note: These values are for the pin plunger models.
■List of Models
RoHS Compliant
Do Not Remove
1 2
Actuator OF max. D2RV
0.25 N {25 gf} D2RV-E
0.49 N {50 gf} D2RV
0.98 N {100 gf} D2RV-G
0.49 N {50 gf} D2RV-L11
0.98 N {100 gf} D2RV-L11G
0.25 N {25 gf} D2RV-L
0.49 N {50 gf} D2RV-LG
0.25 N {25 gf} D2RV-L13
0.49 N {50 gf} D2RV-L13G
0.49 N {50 gf} D2RV-L22
0.98 N {100 gf} D2RV-L22G
0.25 N {25 gf} D2RV-L2
0.49 N {50 gf} D2RV-L2G
Pin plunger
Short hinge lever
Hinge lever
Simulated roller lever
Short hinge roller lever
Hinge roller lever
2
D2RVD2RV
Specifications
■Ratings
Note: The values apply under the following test conditions:
Ambient temperature: 20±2°C
Ambient humidity: 65±5%
Operating frequency: 30 operations/min
■Characteristics
Note: 1. The data given above are initial values.
2. Insulation resistance between terminals of the same polarity is measured at 100 VDC.
3. For the pin plunger models, the above values apply for use at both the free position and total travel position. For the lever models,
they apply at the total travel position.
4. For testing conditions, contact your OMRON sales representative.
■Contact Form
Switching voltage 100 VDC max.
Switching current 0.25 A max.
Contact capacity 10 W max.
Operating speed 0.1 mm to 1 m/s (pin plunger models)
Operating frequency Mechanical: 200 operations/min max.
Electrical: 200 operations/min max.
Insulation resistance (see note 2) 100 MΩ min. (at 500 VDC)
Contact resistance (initial value) 150 mΩ max.
Dielectric strength 200 VDC for 1 min between terminals of same polarity
500 VAC, 50/60 Hz for 1 min between current-carrying metal parts and ground, and between each
terminal and non-current-carrying metal part
Vibration resistance (see note 3) Malfunction: 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance (see note 3) Destruction:500 m/s2 {approx. 50G} max.
Malfunction:200 m/s2 {approx. 20G} max.
Durability (see note 4) Mechanical: 10,000,000 operations min. (200 operations/min)
Electrical: 3,000,000 operations min. (200 operaions/min)
Degree of protection IEC IP40
Degree of protection against elec-
tric shock
Class I
Proof tracking index (PTI) 175
Ambient operating temperature –10°C to 60°C (at ambient humidity of 60% max.) (with no icing or condensation)
Ambient operating humidity 80% max. (for 5°C to 35°C)
Weight Approx. 7 g (pin plunger models with terminals)
Reed switch
SPST-NO
3
D2RVD2RV
Dimensions
Note: All units are in millimeters unless otherwise indicated.
■Terminals ■Mounting Holes
■Dimensions and Operating Characteristics
Note: 1. All units are in millimeters unless otherwise indicated.
2. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
3. The @ in the model number is for the OF code.
4. The operating characteristics are for operation in the A direction ( ).
Two, solder terminals
2.4 dia. 1.3 dia.
Two, 3.1-dia. mounting holes or
M3 screw holes
10.3±0.1
22.2±0.1
Model D2RV-E D2RV D2RV-G
OF max. 0.25 N {25 gf} 0.49 N {50 gf} 0.98 N {100 gf}
PT max. 1.6 mm
OT min. 0.6 mm
MD max. 0.8 mm
OP 14.4±0.6 mm
Model D2RV-L11 D2RV-L11G
OF max. 0.49 N {50 gf} 0.98 N {100 gf}
PT max. 1.8 mm
OT min. 0.4 mm
MD max. 1 mm
OP 15±0.6 mm
3.1+0.13
−0.03
3.1+0.13
−0.03 dia. hole
20.2±0.25
1.5R
2.8
PT
OP 10.3±0.1
2.8
3.4±0.15 dia.
22.2±0.1
27.8
1
5.4 15.9
4.5 3.1
10.3
2.8
(
10
)
Pin Plunger Models A
Short Hinge Lever Models
3.1+0.13
−0.03 dia. hole
22.1
8.1
t = 0.5
(stainless lever)
PT
OP
3.1+0.13
−0.03
3.4±0.15 dia.
10.3±0.1
2.8
22.2±0.1 2.8 1
27.8
(
10
)
5.4 15.9
4.3 3.1
10.3
A
4
D2RVD2RV
Model D2RV-L D2RV-LG
OF max. 0.25 N {25 gf} 0.49 N {50 gf}
PT max. 4 mm
OT min. 1 mm
MD max. 1.6 mm
OP 14.4±1.2 mm
Model D2RV-L13 D2RV-L13G
OF max. 0.25 N {25 gf} 0.49 N {50 gf}
PT max. 4 mm
1 mmOT min.
MD max. 1.6 mm
OP 18.1±1.2 mm
Hinge Lever Models
3.1
+0.13
−0.03
dia. hole
3.1
+0.13
−0.03
3.4±0.15 dia.
t = 0.5 (stainless lever)
35.6±0.8
8.1
PT
OP 10.3±0.1
2.8
22.2±0.1
2.8 1
27.8
(10)
5.4 15.9
4.3 3.1
10.3
A
Simulated Roller Lever Models
3.5R
t = 0.5 (stainless lever)
32.6±0.8
8.1 3.1
+0.13
−0.03
dia. hole
3.1
+0.13
−0.03
3.4±0.15 dia.
PT
OP
10.3±0.1
22.2±0.1
2.8 1
27.8
(10)
5.4 15.9
4.3 3.1
10.3
A
5
D2RVD2RV
Model D2RV-L22 D2RV-L22G
OF max. 0.49 N {50 gf} 0.98 N {100 gf}
PT max. 1.8 mm
0.4 mmOT min.
MD max. 1 mm
OP 20.4±0.6 mm
Model D2RV-L2 D2RV-L2G
OF max. 0.25 N {25 gf} 0.49 N {50 gf}
PT max. 4 mm
OT min. 1 mm
MD max. 1.6 mm
OP 19.9±1.2 mm
Short Hinge Roller Lever Models
4.8 dia. × 4.8
3.1
+0.13
−0.03
dia. hole
t = 0.5
(stainless lever)
20.1
8.1
Unlubricated
polyacetal
resin roller
3.1
+0.13
−0.03
3.4±0.15 dia.
2.8
10.3±0.1
PT
OP
22.2±0.1
2.8 1
27.8
(10)
5.4 15.9
5.15
10.3
A
Hinge Roller Lever Models
4.8 dia. × 4.8
3.1+0.13
−0.03 dia. hole
3.1+0.13
−0.03
3.4±0.15 dia.
5.15
10.3
15.9
5.4
34.0±0.8
8.1
t = 0.5 (stainless lever)
PT
OP
10.3±0.1
2.8
22.2±0.1
2.8 1
27.8
(
10
)
Unlubricated
polyacetal
resin roller
A
6
D2RVD2RV
Precautions
Refer to General Information.
■Designing
Contact Protection
Depending on the load, an appropriate protective circuit must be
connected across or to the Switch so as to ensure the rated dura-
bility of the Switch.
Inductive Load
If the load is inductive, connect a spark killer across the Switch to
diminish the spark discharge that may occur when the Switch
contacts release.
The constants of this spark killer, i.e., resistance R and capaci-
tance C, can be obtained from the graph shown if the following
constants are known:
Load current I
Load voltage E = EC
Inductance L
To obtain R, start on the load voltage E axis on the graph. Run up
to the point on the axis indicating the given load voltage and then
across to the R axis. For example, if E is 24 VDC, R is about
115 Ω.
Next, to determine C, L must be known. Suppose L is 0.5 H, I is
0.5 A, and E is 24 VDC. Then C can be obtained by following
these steps:
1. Plot the value of E, 24 V, on the E axis.
2. Plot the point where the EC curve corresponding to E, or
the EC = 24 V curve intersects with the value of I, 0.5 A.
3. Join points E and the intersection of EC with I with a
straight line. This line is the top dotted line in the graph.
4. Find the point the E-EC line intersects with the value of L,
0.5 H. This intersection indicates the value of 0.14 µF. T h i s
is the capacitance the constant C must satisfy.
Another Example
For the sake of practice, obtain the value of C where I = 0.4 A, E =
12 VDC, and L = 5 H. The E-EC line in this case is the bottom dot-
ted line on the graph. It indicates the value of 1.1 µF. So, use a
capacitor having a capacitance of 1.1 µF.
Load
CR
Supply
voltage
Miniature Reed Switch
Load type
Resistive
load
Inductive load Constants for spark killer
Load current I (A)
0.25 (H)
0.5 1 2 4 10
0.5 (H) 1 (H) 2 (H) 5 (H)
0.05
0.005 0.05 0.1 0.2
0.14
1.1
0.0005 0.005 0.01 0.02 0.04 0.1
50 PF
0.0005 0.001 0.002 0.004 0.01
100 PF 400 PF
5 PF
50 PF 200 PF 0.001
0 0.1 0.2 0.3 0.4 0.5
EC = 100 V
EC = 48 V
EC = 36 V
EC = 24 V
EC = 12 V
EC = 5 V
48
36
24
12
5
1
100 2,000
460
260
115
29
5
0.4 1
7
D2RVD2RV
Example of Other Protective Circuits
For Electronic Circuit Load
If an electric circuit is connected to the Switch as the load, a high
response speed is required from the Switch. To assure the rated
response speed of the Switch and to prevent contact bounce,
insert an integral circuit between the Switch and the load.
Change in Characteristics Due to Temperature
Fluctuation
The characteristics of the Switch may be changed with the tem-
perature.
■Correct Use
Handling
Do not drop the Reed Switch on a hard object such as floor
because the internal mechanism of the Switch may be damaged
and, as a result, the characteristics of the Switch may be
degraded.
Install the Switch so that the actuator can move at least 70% of
the rated travel and returns to the free position when the Switch is
released.
Take adequate preventive measures against inrush current and
surge voltage. Under the load conditions where severe transient
phenomena take place, metal deposition may occur between the
mating contacts of the Switch, degrading the electrical and
mechanical characteristics and contact reliability of the Switch.
Effect of the External Vibration
If a vibration of 1 kHz or higher is added, note that false switching
operations may occur due to resonant frequency, even with a low
acceleration.
Effect of the External Magnetic Fields
If two or more switch units are closely installed, mutual interfer-
ence due to the fringing field will occur, resulting in malfunction.
Be sure to keep the interval between the switch units 8 mm or
more.
If you install the switch unit on the iron plate, each operating
characteristic will change. Therefore, confirm that the interval
between the switch units should be 2 mm or more.
Do not use the switch in some area where a strong external mag-
netic field would be applied, or malfunction will be caused.
Use nonmagnetic brass or stainless steel (SUS304 alloy) screws
for installation. Do not use any iron screw.
Lead Wiring
To solder the lead to the terminal, apply a soldering iron rated at
30 W max. quickly (within 5 seconds) with the actuator at the free
position.
Applying a soldering iron for too long a time or using one that is
rated at more than 30 W may degrade the Switch characteristics.
Mounting
Use two M3 mounting screws with plain or spring washers to
mount the Switch. Tighten the screws to a torque of 0.39 N·m {4
to 6 kgf·cm}.
When installing two or more Switches side by side, provide at
least 8 mm between the adjacent Switches. If this is impossible,
attach the optional magnetic baffle D2RV-@-I to the Switches.
■Actuator (Sold Separately)
Various Actuators are available as shown on D3V/V/VX/D2MV/
D2RV Common Accessories.
■Connector (Sold Separately)
Refer to Terminal Connectors.
For AC circuit load
L load
R
C
L load Z
For DC circuit load
V
R
L load
D
For lamp load
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. B056-E1-04
