Classification
Part Name
REFERENCE SPECIFICATION
3.0mm x 2.0mm SMD
Light Touch Switch
Issue No.
Part No.
EVPAWED4A
20160401
1 / 8
1. Notification Items
1.1 Law and the regulation which are applied
① Ozone depleting substances specified by Montreal Protocol have not been used in the manufacturing
process of the material used in this product.
② This product complies with RoHS Directive (on the restriction of the use of certain hazardous substances
in electrical and electronic equipment) (2011/65/EU).
③ The materials used in this product contain only the substances listed in the List of Existing Chemical Substances
specified in ‘Act on the Evaluation of Chemical Substances and Regulation of Their Manufacture, etc’.
④ Permission must be obtained from the Japanese government if the product that is subject to the
"Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan.
1.2 Application Limits
The following shall be described for safety precaution:
[Limitation of Application]
- This product has been designed and manufactured for general electronic devices,
such as home electronics, office equipment, information device and communication devices.
In an event that this product is used for more sophisticated applications requiring higher safety and
reliability and its failure or malfunction of this product may impose damage to human life or property,
agreement on product specifications for approval suitable for such applications are required.
Such applications shall include the following:
aircraft equipment, aerospace equipment, disaster prevention / crime prevention equipment,
medical equipment, transportation equipment (vehicles, trains, ships, etc.), information
processing equipment that are highly publicized, and other equivalent equipment
- Regardless of its applications, in an event that this product is used for the equipment requiring
high safety levels, place protective circuits or redundant circuits and perform safety tests to improve
your products safety.
1.3 Handling of reference specification.
・ Since the contents of this reference specification are subjected to change without
prior notifications,please request us a formal specification again for your investigations
before using.
1.4 Manufacturing Sites
The country of manufacture : China
The country of manufacture : Japan
Panasonic Industrial Devices (Qingdao) Co., Ltd.
Input Devices Business Unit, Electromechanical Control Business Division
Panasonic Corporation
2. Summary
2.1 This specifications applies to the following types of switch.
Push-ON type S.P.S.T
2.2 This specifications is a constituent document of contract for business concluded between
your company and Panasonic Corporation.
2.3 Items not particularly specified in this specifications shall be in conformance with JIS Standards.
Panasonic Corporation
Classification
Part Name
Issue No.
REFERENCE SPECIFICATION
3.0mm x 2.0mm SMD
Light Touch Switch
20160401
Part No.
EVPAWED4A
3. Dimension・Marking・Circuit diagram
2 / 8
REFERENCE ONLY
Date code are indicated in the product.
Panasonic Corporation
Classification
Part Name
Issue No.
REFERENCE SPECIFICATION
3.0mm x 2.0mm SMD
Light Touch Switch
20160401
Part No.
3 / 8
EVPAWED4A
4. General specification
DC 15 V 20 mA(max.)
4.1 Switch rating
DC
2 V
10 μA(min.)
-40 ∼ + 85 ℃
4.2 Operation temperature range
4.3 Preservative temperature range
Single condition :
- 40
Taping condition:
- 20
∼ + 85 ℃
∼ + 60 ℃
4.4 Standard conditions
Unless otherwise specified, the test and measurements shall be carried out as follows.
5 ∼ 35 ℃
Ambient temperature :
45 ∼ 85 %
Relative humidity
:
86 ∼ 106 kPa
Atmospheric pressure :
However, if doubt arises on the decision based on the measured values
under the above-mentioned conditions, the following conditions shall be employed.
20 ± 2 ℃
Ambient temperature :
65 ± 5 %
Relative humidity
:
86 ∼ 106 kPa
Atmospheric pressure :
5. Performance
5.1 Electrical characteristics
No.
ITEM
5.1.1
Contact
TEST CONDITION
Push force
:
resistance Measurement tool :
{Operation force} × 2
PERFORMANCE
500 mΩ max.
Contact resistance meter
(Capable of 10 μA ∼ 10 mA)
5.1.2
5.1.3
5.1.4
Insulation
DC 100 V (Between terminals)
resistance
Withstand
AC 250 V for 1 minute. (Between terminals)
voltage
Bouncing
Operation speed : 3∼4 times/s
50 MΩ min.
No insulation
destruction
ON
10 ms max.
bounce_e
OFF
10 ms max.
Panasonic Corporation
Classification
Part Name
REFERENCE SPECIFICATION
3.0mm x 2.0mm SMD
Light Touch Switch
Issue No.
20160401
Part No.
4 / 8
EVPAWED4A
5.2 Mechanical characteristics
No.
ITEM
5.2.1 Operation force
TEST CONDITION
Operation feeling shall be measured after
3 times pre-operations.
Pre-operation condition : 3 times, 1mm/s by 6 N
Measurement speed : 0.5 mm/s
PERFORMANCE
Push force
3.3
+
-
1.0
1.0
N
Return force
0.1 N min
dousazu2_e
5.2.2
Travel to
0.15
closure
dousazu3_e
5.2.3
Click ratio
+
-
0.05
0.05
mm
TYUU116
Measurement condition:No.5.2.1
Click ratio
40 % min.
dousazu2_e-click2
5.2.4
Push strength
Click ratio = (a-c)/a×100%
50 N for 15 sec.
push_zu
5.2.5
5.2.6
5.2.7
5.2.8
3 N, 15 sec.
Side push
strength Initial product with
2 times reflow.
TYUUI152_E
(Reflow condition: see 6.1)
Vibration test
1) Amplitude
: 1.5 mm
2) Sweep rate
: 10-55-10Hz for 1 minute
3) Sweep method
: Logarithmic frequency
sweep rate
4) Vibration direction : X,Y,Z(3 directions)
5) Time
: Each direction 2 hours
(Total 6 hours)
Soldering heat
Mount the switch on P.W.B by solder paste.
test 1) Reflow process 2 times. (Refer to section 6.1)
2) Standard conditions after test : 1 hours
Solderbility
After spreading flux, the terminal is immersed
in solder with following condition.
Solder bar
: M705/Sn-3.0Ag-0.5Cu
(Senju Metal Industry Co.,Ltd.)
Flux
: CF-110VH-2A (tamura kaken)
Soldering temperture : 260±5 ℃
Soldering time
: 2±0.5 sec.
Panasonic Corporation
No damage
(Electrical and
mechanical)
No damage
(Electrical and
mechanical)
No.5.1 and
5.2.1 to 5.2.2 shall
be satisfied.
Contact resistance
10 Ω max.
Click ratio 35% min.
No.5.1.2 to 5.1.4 and
No.5.2.1 to 5.2.2
shall be satisfied.
95% or more of surface
area(Excluding ruptured
surface)where is
immersed in solder
shall be covered by new
solder.
Classification
Part Name
REFERENCE SPECIFICATION
3.0mm x 2.0mm SMD
Light Touch Switch
Part No.
EVPAWED4A
5.3 Climatic characteristics
No.
ITEM
5.3.1 Cold test
1)
2)
3)
4)
5.3.2
5.3.3
Heat test
1) Temperature
: 85±2 ℃
2) Duration of test : 500h
3) Standard conditions after test
Heat shock
test
5.3.4
5.3.5
5.3.6
5.3.7
5.3.8
TEST CONDITION
Temperature
: -40±2 ℃
Duration of test : 500h
Take off a drop water.
Standard conditions after test : 1 h
1) Test cycles : 20 cycles
2) Standard conditions after test
: 1h
: 1h
A:+85±2 ℃
B:-40±2 ℃
C:1 hour
D:5 minutes max.
E:1 hour
F:5 minutes max.
Temperature
: 60±2 ℃
Relative humidity : 90∼95 %
Duration of test : 500 h
Take off a drop water.
Standard conditions after test : 1 h
DC 15 V 20 mA Resistance load
Operation speed
: 2∼3 times/s
Push force
: Maximum value of operation
force
4) Operation number : 300,000 times
20160401
5 / 8
PERFORMANCE
Contact resistance
10 Ω max.
No.5.1.2 to 5.1.4 and
No.5.2.1 to 5.2.2
shall be satisfied.
Contact resistance
10 Ω max.
No.5.1.2 to 5.1.4 and
No.5.2.1 to 5.2.2
shall be satisfied.
Contact resistance
10 Ω max.
No.5.1.2 to 5.1.4 and
No.5.2.1 to 5.2.2
shall be satisfied.
Contact resistance
10 Ω max.
No.5.1.2 to 5.1.4 and
No.5.2.1 to 5.2.2
shall be satisfied.
Endurance
Contact resistance
500 Ω max.
(by spring
method)
Bouncing : 50 ms max.
Variation rate of
operation force shall
be within ±30 % to the
value before testing
No.5.1.2 and 5.2.2
shall be satisfied.
Withstand H S
1) Density
: 3±1ppm
Contact resistance
2
2) Temperature
: 40±2 ℃
10 Ω max.
3) Relative humidity : 80∼85 %
No.5.1.2 to 5.1.4 and
4) Duration of test : 24 h
No.5.2.1 to 5.2.2
5) Standard conditions after test : 1 h
shall be satisfied.
1) liquid
: Fresh water
Water ingress shall be
Water resistance
(adhere to IPx7) 2) Temperature
: 20±15 ℃ (Ambient temperature) limited enough to prevent
3) Immersion depth : 1m
deleterious effect to the
4) Duration of test : 30min.
switch function.
Water around the switch shall be removed by the moisture
absorbing material, then expose the switch in the ambient
temperature and humidity for 1 h before checking.
* Temperature difference between switch and liquid
shall be 5 deg C max.
Dust resistance
1) Dust
: Talc (Type 4)
No dust ingress to the
: 2kg/㎥
inside of switch.
(adhere to IP6x) 2) Density
3) Temperature
: 20±15 ℃ (Ambient temperature)
4) Relative humidity : 45∼85 %
5) Duration of test : 8 h
Humidity test
1)
2)
3)
4)
5)
1)
2)
3)
Issue No.
Panasonic Corporation
Classification
Part Name
REFERENCE SPECIFICATION
3.0mm x 2.0mm SMD
Light Touch Switch
Part No.
EVPAWED4A
Issue No.
20160401
6 / 8
6. Prohibitions and precaution for handling
6.1 Reflow soldering condition
1) Two times max. with directing the switch mounting side of P.W.B up.
2) Re-soldering by soldering iron shall be allowed under 350 ℃ max. 3 sec. max. 1 time only and
the tip of iron must not touch to terminals.
Soldering iron for re-soldering have to be 60 W max.
6.2 Design instructions
1) Please refer to the land pattern plan Panasonic recommends on the 2nd page.
2) Design key top as fig-1.(Recommended operation condition)
As the design of key top may affect operation feeling,please follow the directions stated below.
･ We recommend to use harder material such as resin for key top,
and we do not recommend softer material such as rubber may
affect operation feeling.
However in case if you still would like to use softer material,
tyuui151_e
please consult with us beforehand.
fig-1
･ Considering decentering between switch and key top, the key top
shall be always positioned to be able to push the entire top surface of actuator.
The switch and the decentering shall be 0.3 mm max..
If you cannot apply our recommended plunger design,please make plungers size bigger than
product outline.
･ Please design housing and key top not to produce friction to each
other to avoid inhibition of operation feeling.
3) Please design your knob not to hit the switch film or case even when the switch is fully pushed.
4) Please pay attention not to add side force (static or impact) to the push plate of
the switch, especially when the switch is being built into the products.(fig-2)
tyuui150_e
6.3 Note
1) Please be cautions not to give excessive static load or shock to switches.
2) Please be careful not to pile up P.W.B. after switches were soldered.
fig-2
3) Preservation under high temperature and high humidity or corrosive gas should be avoided especially
When you need to preserve for a long period, do not open the carton.
4) Avoid pressing the film portion of the product with sharp-edged object.
5) Cleaning
･ If flux or solder is scattered on the surface of P.W.B when soldering, characteristics of this product
may be damaged.
･ Cleaning after soldering is not allowed.When cleaning is required this switch should be soldered after
the cleaning.
6) Avoid the use of the switch under pushed ON condition is continued for a long time.
7) There is a possibility the flux from solder paste infiltrates into the body if plenty of solder paste was
applied by switch on the P.W.B.
So we recommend to use our proposed land design in order to prevent above problem.
Also please avoid putting additional land by the switch on the P.W.B.
8) Please don't apply any coating material to the switch after reflow soldering.
9) Please be careful not to apply the load sideways to avoid film bending when the switches are soldered.
Panasonic Corporation
Classification
Part Name
3.0mm x 2.0mm SMD
Light Touch Switch
REFERENCE SPECIFICATION
Part No.
EVPAWED4A
7. Packing specification
Panasonic Corporation
Issue No.
20160401
7 / 8
Classification
Part Name
REFERENCE SPECIFICATION
3.0mm x 2.0mm SMD
Light Touch Switch
Issue No.
Part No.
EVPAWED4A
20160401
8 / 8
<Prohibitions and precaution for handling>
【Prohibited items on fire and smoking】
・ Absolutely avoid use of a product beyond its rated range because doing so may cause a fire.
If misuse or abnormal use may result under conditions in which the product is used out of its
rated range, take proper measures such as current interruption using a protective circuit.
・ The grade of nonflammability for resin used in product is "94HB, " which is based on UL94
Standards (flammability test for plastic materials). Prohibit use in a location where a
spreading fire may be generated or prepare against a spreading fire.
【For use in equipment for which safety is requested】
・ Although care is taken to ensure product quality, inferior characteristics, short circuits,
and open circuits are some problems that might be generated. To design an equipment which
places maximum emphasis on safety, review the effect of any single fault of a product
in advance and perform virtually fail-safe design to ensure maximum safety by:
・ Preparing a protective circuit or a protective device to improve system safety, and equipment.
・ Preparing a redundant circuit to improve system safety so that the single fault
of a product does not cause a dangerous situation.
【Attentions required for storage condition】
・ When this product is to be stored in the following circumstances and conditions, it may
affect on the performance deteriorations and solderability etc., avoid storing in the
following conditions.
(1) A place where the temperature is -10℃ max., +40℃ min. and the humidity is 85% min.
(2) In the corrosive gas atmosphere.
(3) Long-term storage for 6 months min.
(4) A place where the product is exposed to direct sunlight.
・ Store in packed condition so that the load stress is not applied.
・ Please use this product as soon as possible, our recommendation is within 3 months and the
limitation is 6 months.
・ If any remainder left after packing is opened, store it with proper moistureproofing and
gasproofing, etc.,
Panasonic Corporation