Tactile Switch
B3W
Tactile Switch with Sealed Construction
for Automatic Soldering
• Sealed construction conforming to IP67 (IEC-60529)
provides high reliability in locations exposed to dust or water.
• Available in two sizes: 6 mm square and 12 mm square
• Dome-shaped contact mechanism assures short key stroke
and a sharp click to confirm actuation
• Ground terminal available to protect against static electricity
• Projected plunger types that allow the installation of
B32-series Special Key Tops are available.
• RoHS Compliant
Ordering Information
Model
Type
Plunger
Switch height
Operating force
Standard
6x6 mm
Flat
4.3 mm
General-purpose: 160 g
High-force:
Projected
7.3 mm
Flat
4.3 mm
Bags
B3W-1000
B3W-1100
B3W-1002
B3W-1102
B3W-1050
B3W-1150
B3W-1052
B3W-1152
B3W-4000
B3W-4100
B3W-4005
B3W-4105
B3W-4050
B3W-4150
B3W-4055
B3W-4155
230 g
230 g
General-purpose: 200 g
High-force:
Projected
With ground terminal
Bags
General-purpose: 160 g
High-force:
Standard
12x12 mm
Without ground terminal
7.3 mm
350 g
General-purpose: 200 g
High-force:
350 g
Note: Bulk Packaged, 100 switches per bag. Order in multiples of the package quantity.
Important Note: Switches cannot be water-washed.
■ Accessories
See “B32” Tactile Switch Key Top data sheet for keycaps that fit projected plunger B3W models.
■ Plunger Identification Table
Use this table to determine keyswitch type by plunger color.
Plunger color
Operating force
Type
White
160 g
B3W-1000, 1050, 1100, 1150
White
200 g
B3W-4000, 4050, 4100, 4150
Yellow
230 g
B3W-1002, 1052, 1102, 1152
Yellow
350 g
B3W-4005, 4055, 4105, 4155
Tactile Switch
B3W
231
Specifications
■ Characteristics
Contact form
SPST-NO
Switching capacity
1 to 50 mA, 5 to 24 VDC (resistive load)
Contact resistance
100 mΩ max. (rated: 1 mA, 5 VDC)
Insulation resistance
100 MΩ min. (at 250 VDC)
Dielectric strength
500 VAC, 50/60 Hz for 1 min.
Bounce time
5 ms max.
Vibration resistance
Malfunction: 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance
Destruction: 1,000 m/s2 (approx. 100 G) max.
Malfunction: 100 m/s2 (approx. 10 G) max.
Ambient operating temperature
-25° to 70°C (at 60% RH max.) with no icing or condensation
Ambient operating humidity
Service life
35% to 85% (at 5 to 35°C)
General purpose
B3W-1@@@ :
High force
1,000,000 operations min.
B3W-4@@@ : 3,000,000 operations min.
300,000 operations min.
Weight
B3W-1@@@ :
1,000,000 operations min.
Approx. 0.30 g
B3W-4@@@ : Approx. 1.00 g
■ Operating Characteristics
B3W-1@@@
Characteristics
General-purpose
Operating force (OF) max.
160 g
Release force (RF) min.
20 g
Pretravel (PT)
0.25
B3W-4@@@
High-force
+0.2
General-purpose
230 g
200 g
50 g
30 g
/-0.1 mm
■ Operating Force vs. Stroke (Typical Example)
B3W-1@@@ series
B3W-4@@@ series
■ Construction
Plunger
Spacer
Sealed rubber
Contact dome
Cover
Base
232
Fixed contact
Tactile Switch
B3W
50 g
0.3
Engineering Data
High-force
350 g
+0.2
/-0.1 mm
Dimensions
Note: 1. Unless otherwise specified, all units are in millimeters and a tolerance of ± 0.4 mm applies to all dimensions.
2. Terminal numbers are not indicated on this switch. With the switch turned over so that the logo mark “OMRON” is visible on the upper
part of the rear side of the switch base, the terminal on the right of the logo mark is numbered “1” and that on the bottom right is “3.”
Accordingly, two terminals on the left side are numbered “2” and “4” respectively.
6 x 6 mm Models
Flat Plunger Type
(without Ground
Terminal)
6±0.2
6.6±0.2
B3W-1000
B3W-1002
Flat Plunger Type
(with Ground
Terminal)
3.3 dia.
B3W-1100
B3W-1102
4.5±0.2
6±0.2
3.3 dia.
6.6±0.2
4.5±0.2
1.5
4.3±0.2
4.3±0.2
3.4
3.4
3.5
3.5
(1.8)
0.3
6.5±0.5
0.7
0.7
6.5±0.5
4
Terminal Arrangement
/Internal Connections
(Top View)
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
0.7
0.25
7.7±0.5
7.7±0.5
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
(1.8)
0.3
0.7
0.7
4
3
3
4.5±0.1
4.5±0.1
2
2
4.1±0.1
1
Four, 1±0.05 dia.
6.5±0.1
1
5
Five, 1±0.05 dia.
6.5±0.1
Projected Plunger Type
(without Ground
Terminal)
B3W-1050
B3W-1052
6±0.2
Projected Plunger Type
(with Ground
Terminal)
3.3 dia.
B3W-1150
B3W-1152
4.5±0.2
6.6±0.2
1.8±0.1
6.6±0.2
2.4 2.4±0.1
1.8±0.1
7.3±0.2
6±0.2
3.3 dia.
4.5±0.2
2.4 2.4±0.1
7.3±0.2
4.3±0.2
4.3±0.2
3.4
3.5
3.4
3.5
(1.8)
0.3
0.7
6.5±0.5
(1.8)
0.3
0.7
1.5
0.7
7.7±0.5
0.7
0.7
0.25
6.5±0.5
7.7±0.5
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
4.5±0.1
4
3
2
1
4.5±0.1
2
6.5±0.1
Terminal Arrangement
/Internal Connections
(Top View)
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
1
4.1±0.1
Four, 1±0.05 dia.
Five, 1±0.05 dia.
6.5±0.1
Tactile Switch
B3W
233
12 x 12 mm Models
Flat Plunger Type
(without Ground
Terminal)
12±0.2
Flat Plunger Type
(with Ground
Terminal)
7.1 dia.
B3W-4000
B3W-4005
12±0.2
B3W-4100
B3W-4105
5±0.2
12±0.2
7.1 dia.
12±0.2
5±0.2
1.6
4.3±0.2
3.55
4.3±0.2
3.5
3.55
3.5
(1.8)
0.3
1
12.5±0.5
0.9
2.6
1
9
13.8±0.5
(1.8)
0.3
0.25
1
12.5±0.5
9
1
6.9
13.8±0.5
Two, 1.8±0.05 dia.
(for positioning boss)
4
3
2
1
Terminal Arrangement
/Internal Connections
(Top View)
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Two, 1.8±0.05 dia.
(for positioning boss)
4
5±0.1
3
9±0.1
9±0.1
5±0.1
2
6.9±0.1
1
5
Five, 1.2±0.05 dia.
12.5±0.1
Four, 1.2±0.05 dia.
Projected Plunger Type
(without Ground
12
Terminal)
12.5±0.1
Projected Plunger Type
12
(with Ground
Terminal)
±0.2
B3W-4050
B3W-4055
12±0.2
B3W-4150
B3W-4155
5±0.2
3.8 3.8±0.1
12±0.2
1.8±0.1
1.8±0.1
7.3±0.2
4.3±0.2
±0.2
5±0.2
3.8 3.8±0.1
7.3±0.2
4.3±0.2
3.55
3.55
3.5
3.5
0.3
(1.8)
1
12.5±0.5
9
(1.8)
0.3
0.9
2.6
12.5±0.5
1
13.8±0.5
0.25
1
9
1
6.9
13.8±0.5
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Two, 1.8±0.05 dia.
(for positioning boss)
5±0.1
Terminal Arrangement
/Internal Connections
(Top View)
4
3
2
1
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Two, 1.8±0.05 dia.
(for positioning boss)
Terminal Arrangement
/Internal Connections
(Top View)
4
9±0.1
5±0.1
9±0.1
2
6.9±0.1
12.5±0.1
3
1
5
Four, 1.2±0.05 dia.
Five, 1.2±0.05 dia.
12.5±0.1
Precautions
Be sure to read the precautions common to all Tactile Switches, contained in the Technical User’s Guide, “Tactile Switches, Technical Information”
for correct use.
234
Tactile Switch
B3W
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
(d) Products: Products and/or services of Seller
(e) Including: Including without limitation
2. Offer; Acceptance: These Terms are deemed part of all quotations, acknowledgments,
invoices, purchase orders and other documents, whether electronic or in writing, relating
to the sale of Products by Seller. Seller hereby objects to any Terms proposed in Buyer's
purchase order or other documents which are inconsistent with, or in addition to, these
Terms.
3. Distributor: Any distributor shall inform its customer of the contents after and including
section III of these Terms.
II. SALES
1. Prices; Payment: All prices stated are current, subject to change without notice by Seller.
Buyer agrees to pay the price in effect at the time the purchase order is accepted by
Seller. Payments for Products received are due net 30 days unless otherwise stated in
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respect of this invoice.
2. Discounts: Cash discounts, if any, will apply only on the net amount of invoices sent to
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if (a) the invoice is paid according to Seller's payment terms and (b) Buyer has no past
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3. Interest: Seller, at its option, may charge Buyer 1.5% interest per month or the maximum
legal rate, whichever is less, on any balance not paid within the stated terms.
4. Orders: Seller will accept no order less than 200 U.S. dollars net billing.
5. Currencies: If the prices quoted herein are in a currency other than U.S. dollars, Buyer
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any government approvals regarding the importation or sale of the Products.
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or indirectly on Seller or required to be collected directly or indirectly by Seller for the
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8. Financial: If the financial position of Buyer at any time becomes unsatisfactory to Seller,
Seller reserves the right to stop shipments or require satisfactory security or payment in
advance. If Buyer fails to make payment or otherwise comply with these Terms or any
related agreement, Seller may (without liability and in addition to other remedies) cancel
any unshipped portion of Products sold hereunder and stop any Products in transit until
Buyer pays all amounts, including amounts payable hereunder, whether or not then due,
which are owing to it by Buyer. Buyer shall in any event remain liable for all unpaid
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causes beyond its control, including earthquakes, fires, floods, strikes or other labor
disputes, shortage of labor or materials, accidents to machinery, acts of sabotage, riots,
delay in or lack of transportation or the requirements of any government authority.
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(a) All sales and shipments of Products shall be FOB shipping point (unless otherwise
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(b) Delivery and shipping dates are estimates only; and
(c) Seller will package Products as it deems proper for protection against normal
handling and extra charges apply to special conditions.
12. Claims: Any claim by Buyer against Seller for shortage or damage to the Products
occurring before delivery to the carrier or any claim related to pricing or other charges
must be presented in detail in writing to Seller within 30 days of receipt of shipment.
III. PRECAUTIONS
1. Suitability: IT IS THE BUYER’S SOLE RESPOINSIBILITY TO ENSURE THAT ANY
OMRON PRODUCT IS FIT AND SUFFICIENT FOR USE IN A MOTORIZED VEHICLE
APPLICATION. BUYER SHALL BE SOLELY RESPONSIBLE FOR DETERMINING
APPROPRIATENESS OF THE PARTICULAR PRODUCT WITH RESPECT TO THE
BUYER’S APPLICATION INCLUDING (A) ELECTRICAL OR ELECTRONIC
COMPONENTS, (B) CIRCUITS, (C) SYSTEM ASSEMBLIES, (D) END PRODUCT, (E)
SYSTEM, (F) MATERIALS OR SUBSTANCES OR (G) OPERATING ENVIRONMENT.
Buyer acknowledges that it alone has determined that the Products will meet their
requirements of the intended use in all cases. Buyer must know and observe all
prohibitions of use applicable to the Product/s.
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.
5. Programmable Products: Seller shall not be responsible for the Buyer's programming of
a programmable Product.
IV. WARRANTY AND LIMITATION
1. Warranty: Seller's exclusive warranty is that the Products will be free from defects in
materials and workmanship for a period of twelve months from the date of sale by Seller
(or such other period expressed in writing by Seller). SELLER MAKES NO WARRANTY
OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT ALL OTHER WARRANTIES,
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE OF THE PRODUCTS.
2. Buyer Remedy: Seller's sole obligation hereunder shall be to replace (in the form
originally shipped with Buyer responsible for labor charges for removal or replacement
thereof) the non-complying Product or, at Seller's election, to repay or credit Buyer an
amount equal to the purchase price of the Product; provided that there shall be no
liability for Seller or its affiliates unless Seller's analysis confirms that the Products were
correctly handled, stored, installed and maintained and not subject to contamination,
abuse, misuse or inappropriate modification. Return of any Products by Buyer must be
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SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSS OF
PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED
WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT,
WARRANTY, NEGLIGENCE OR STRICT LIABILITY. FURTHER, IN NO EVENT SHALL
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omissions under these Terms or in any way with respect to the Products.
V. INFORMATION; ETC.
1. Intellectual Property: The intellectual property embodied in the Products is the exclusive
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employees and strictly prevent disclosure to any third party.
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.
5. Errors And Omissions: The information on Seller’s website or in other documentation
has been carefully checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
6. Export Controls: Buyer shall comply with all applicable laws, regulations and licenses
regarding (a) export of the Products or information provided by Seller; (b) sale of
Products to forbidden or other proscribed persons or organizations; (c) disclosure to noncitizens of regulated technology or information.
VI. MISCELLANEOUS
1. Waiver: No failure or delay by Seller in exercising any right and no course of dealing
between Buyer and Seller shall operate as a waiver of rights by Seller.
2. Assignment: Buyer may not assign its rights hereunder without Seller's written consent.
3. Law: These Terms are governed by Illinois law (without regard to conflict of laws).
Federal and state courts in Cook County, Illinois have exclusive jurisdiction for any
dispute hereunder.
4. Amendment: These Terms constitute the entire agreement between Buyer and Seller
relating to the Products, and no provision may be changed or waived unless in writing
signed by the parties.
5. Severability: If any provision hereof is rendered ineffective or invalid, such provision shall
not invalidate any other provision.
Tactile Switch
B3W
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
55 E. Commerce Drive, Suite B
Schaumburg, IL 60173
Global - http://www.omron.com
USA - http://www.components.omron.com
847-882-2288
Cat. No. X303-E-1
Tactile Switch
11/09
B3W
Specifications subject to change without notice
Printed in USA