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Miniature Pushbuttons
Series MB2000
Distinctive Characteristics
Guide interlocked with actuator block prevents window locking and maintains correct plunger alignment to assure contact stability. Employs an over-center actuator mechanism, which diminishes sparking and increases operating life in AC circuits. High torque bushing construction prevents rotation or separation from frame during installation. Splashproof option (D3 and B3 bushing codes) features an o-ring within the bushing and one under the face nut to protect from splashed, sprayed, or spilled liquids. High insulating barriers, formed in the molded diallyl phthalate case, increase isolation of circuits in multipole devices. Prominent external insulating barriers increase insulation resistance and dielectric strength. Epoxy sealed terminals prevent entry of solder flux and other contaminants. Clinching of the frame to the case well above the base and terminals provides 1,500V dielectric strength.
Actual Size
NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com
03-07
Miniature Pushbuttons
Series MB2000
General Specifications
Electrical Capacity (Resistive Load)
Power Level (code W): Logic Level (code G): Logic/Power Level (code A): 6A @ 125V AC & 3A @ 250V AC or 3A @ 30V DC 0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V) Combines W & G ratings Note: Find additional explanation dual rating & operating range in Supplement section. 10 milliohms maximum for silver; 20 milliohms maximum for gold 1,000 megohms minimum @ 500V DC 1,000V AC minimum between contacts for 1 minute minimum; 1,500V AC minimum between contacts & case for 1 minute minimum 50,000 operations minimum for splashproof models; 100,000 for all other models 25,000 operations minimum for silver; 50,000 operations minimum for gold 50,000 operations minimum for silver at 3A @ 125V AC Momentary Action: 1-pole 9.32N; 2-pole 16.18N; 4-pole 25.54N; Alternate Action: 1-pole 4.41N; 2-pole 7.06N; 4-pole 11.77N Slow make, slow break Screw-on Cap (Mom.) Screw-on Cap (Alt.) Snap-on Cap (Mom. & Alt.) .028" (0.71mm) .110" (2.80mm) .125" (3.19mm) .043" (1.09mm) .043" (1.10mm) .050" (1.26mm) .071" (1.80mm) .153" (3.90mm) .175" (4.45mm) Brass w/nickel plating; polyacetal w/B1 bushing Bushing: Brass with nickel plating Stainless steel Case: Diallyl phthalate resin (UL94V-0) Phosphor bronze with silver or gold plating Silver alloy (code W); copper with gold plating (code G); or silver alloy with gold plating (code A) Silver with silver plating (code W); copper or brass with gold plating (code G); or silver with gold plating (code A) Copper or brass with silver plating; copper or brass with gold plating -30C through +85C (-22F through +185F) 90 ~ 95% humidity for 96 hours @ 40C (104F) 10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range & returning in 1 minute; 3 right angled directions for 2 hours 50G (490m/s2) acceleration (tested in 6 right angled directions, with 5 shocks in each direction) B3 & D3 bushing options equivalent to IP67 1.5Nm (13.0 lb*in) for double nut; .7Nm (6.0 lb*in) for single nut 80.0N (18.0 lbf) maximum downward force on actuator Wave Soldering (PC version): See Profile A in Supplement section. Manual Soldering: See Profile A in Supplement section. These devices are not process sealed. Hand clean locally using alcohol based solution. UL94V-0 case All models recognized at 6A @ 125V AC or 3A @ 250V AC or 0.4VA max. @ 28V DC max; UL File No. WOYR2.E44145; add "/U" to end of part number to order UL mark on switch C-UL File No. WOYR8.E44145; add "/C-UL" to end of part number to order C-UL mark on switch All models certified at 6A @ 125V AC or 3A @ 250V AC or 0.4VA max. @ 28V max; CSA File No. 023535-0-000; add "/C" to end of part number to order CSA mark on switch.
Other Ratings
Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life:
Nominal Operating Force: Contact Timing: Plunger Travel: Pretravel: Overtravel: Total Travel
Materials & Finishes
Plunger: Frame: Movable Contactor: Movable Contacts: Stationary Contacts: Terminals:
Environmental Data
Operating Temp Range: Humidity: Vibration: Shock: Sealing:
Installation
Mounting Torque: Cap Installation Force: Soldering Time & Temp: Process Seal:
Standards & Certifications
Flammability Standards: UL & C-UL Recognized:
R
CSA Certified:
NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com
03-07
Bushing Mount Miniature Pushbuttons
Series MB2000 C
CAPS
B C .315" (8.0mm) Dia. .394" (10.0mm) Dia.
TYPICAL SWITCH ORDERING EXAMPLE
MB
2011
S
S1
W
01
A
POLES & CIRCUITS
2011 2065 2061 2085 2181 2185 SPDT SPDT DPDT DPDT 4PDT 4PDT ON ON ON ON ON ON (ON) ON (ON) ON (ON) ON
CONTACT MATERIALS & RATINGS
W Silver Rated 6A @ 125V AC & 3A @ 250V AC Gold Rated 0.4VA max @ 28V AC/DC max Gold over Silver Rated 6A @ 125V AC & 0.4VA max @ 28V AC/DC max
G
CAP COLORS
A B C E F G H Black White Red Yellow Green Blue Gray
( ) = Momentary
A
PLUNGER TYPES
S L Plunger for Screw-on Caps Plunger for Snap-on Caps S1 S2 S4 D1 D3
BUSHINGS
.335" (8.5mm) Threaded with Keyway .335" (8.5mm) Smooth with Keyway .335" (8.5mm) Metric Threaded with Keyway .335" (8.5mm) Threaded with D-Flat .335" (8.5mm) Threaded Splashproof without Keyway 01 02 03 05 06 07 08
TERMINALS
Solder Lug Quick Connect .250" (6.35mm) Straight PC .425" (10.8mm) Wirewrap .750" (19.05mm) Wirewrap .964" (24.5mm) Wirewrap 1.062" (27.0mm) Wirewrap
IMPORTANT:
Switches are supplied without UL, C-UL, & CSA markings unless specified. Specific models & ratings noted on General Specifications page.
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
MB2011SS1W01-CA
Black .394" (10.0mm) Diameter Cap Plunger for Screw-on Caps .335" (8.5mm) Threaded Bushing with Keyway SPDT ON-(ON) Circuit Silver Contacts with 6-Amp Rating Solder Lug Terminals
NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com
03-07
Bushing Mount Miniature Pushbuttons
POLES & CIRCUITS
Plunger Position ( ) = Momentary Normal Pole Model MB2011 SP MB2065 ON ON
Keyway
Series MB2000
Throw & Switch Schematics Note: Terminal numbers are not actually on the switch.
Connected Terminals Normal
Keyway
Down
Down
ON
(ON) 2-3 2-1 SPDT
3
2 (COM) 1
MB2061 DP MB2085
ON ON
(ON) 2-3 5-6 ON 4PDT 2-3 5-6 8-9 11-12 2-1 5-4 8-7 11-10
2 3 1 6 5
2
(COM) 1 6
5 4
2-1 5-4
DPDT
3
MB2181 4P MB2185
ON ON
(ON) ON
(COM) 4 9
8 7 12
11 10
PLUNGER TYPES
On alternate action models, after transferring circuit, the plunger returns to its original position and does not latch down.
S
Plunger for Screw-on Caps
(2.9) .114
(2.9) .114
(3.0) .118
(2.3) .091
(4.7) .185
(4.0) .157
Momentary Plunger Length
Momentary Cap Location
Alternate Plunger Length
Alternate Cap Location
L
Plunger for Snap-on Caps
(3.0) Dia .118 (10.4) .410 (3.6) .142
Momentary & Alternate Plunger Length
Momentary & Alternate Cap Location
NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com
03-07
Bushing Mount Miniature Pushbuttons
BUSHINGS S1
(0.8) .031 (9.0) Dia .354
Series MB2000
S4
.335" (8.5mm) Metric Threaded with Keyway
(0.8) .031 (9.0) Dia .354
.335" (8.5mm) Threaded with Keyway
S2
.335" (8.5mm) Smooth with Keyway
1/4-40 Thd
(0.8) .031 (9.0) Dia .354
(6.2) Dia .244
M6P0.75
(2.5) .098 (8.5) .335 (3.5) .138
(2.5) .098 (8.5) .335 (3.5) .138
(2.5) .098 (8.5) .335 (3.5) .138
Maximum Panel Thickness with Standard Hardware: .154" (3.9mm)
Maximum Panel Thickness with Standard Hardware: .154" (3.9mm)
D1
.335" (8.5mm) Threaded with D Flat
D3
1/4-40 Thd
.335" (8.5mm) Threaded Splashproof without Keyway
1/4-40 Thd (10.0) Dia .394 (8.5) .335 (3.5) .138
(9.0) Dia .354
(2.5) .098 (8.5) .335 (3.5) .138
Maximum Panel Thickness with Standard Hardware: .154" (3.9mm) Panel Cutouts For S1, S2, or S4 Bushing with Keyway
(5.6) .220 (6.5) Dia .256 (0.6) .024
Maximum Panel Thickness with Standard Hardware: .240" (6.1mm)
For S1 or S4 Bushing with Optional Locking Ring
For D1 Bushing with D Flat
(5.8) .228
For D3 Bushing without Keyway
(6.5) Dia .256 (2.2) Dia .087
(6.5) .256
(6.5) Dia .256
(6.5) Dia .256
Standard hardware for bushings S1, S4, & D1 includes 2 hex nuts & 1 lockwasher; D3 bushing has 1 hex nut & 1 o-ring. Standard & optional hardware are illustrated following the Typical Switch Dimension drawings.
CONTACT MATERIALS & RATINGS W G
Silver over Silver Power Level 6A @ 125V AC & 3A @ 250V AC
Gold over Brass or Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Note: Complete explanation of operating range in Supplement section.
A
Gold over Silver
Power Level or Logic Level
6A @ 125V AC & 3A @ 250V AC or 0.4VA maximum @ 28V AC/DC maximum
Note: This dual rated option is suitable when two or more identical switches are used in logic and in power circuits within the same application. See Supplement section for complete explanation of dual rating and operating range.
NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com 03-07
Bushing Mount Miniature Pushbuttons
TERMINALS 01
Solder Lug
Epoxy Seal (2.0) .079
Series MB2000
02
(4.0) .157 (2.0) (1.1) .079 .043 Thk = (0.8) .031
.062" (1.57mm) Wide Quick Connect
Epoxy Seal (6.35) .250 (1.57) .062 Thk = (0.8) .031
03
.250" (6.35mm) Straight PC
3
3
(4.8) .189
6 5 4
3
6 5 4
9 8 7
12 11 10
(4.8) Typ .189 (4.7) Typ .185
Epoxy Seal
(6.35) (4.8) .250 .189
2 1
(4.7) Typ .185 (1.8) Dia Typ .073
2 1
(4.7) Typ .185
2 1
(1.17) .046 Thk = (0.8) .031
(1.8) Dia Typ .073
(1.8) Dia Typ .073
Single Pole
Double Pole
Four Pole
05 06 07 08
.425" (10.8mm) Wirewrap or Extended PC .750" (19.05mm) Wirewrap or Extended PC .964" (24.5mm) Wirewrap or Extended PC 1.062" (27.0mm) Wirewrap or Extended PC
Epoxy Seal
If using as extended PC terminal, refer to the above footprints. A
(1.27) .050
Dimension A = terminal lengths as shown beside the terminal codes at the left.
Thk = (0.8) .031
CAPS & CAP COLORS B
AT413 .315" (8.0mm) Dia. Screw-on Cap AT443 .315" (8.0mm) Dia. Snap-on Cap For use with Plunger Code L Cap Material: Polycarbonate Finish: Glossy
C
AT407 .394" (10.0mm) Dia. Screw-on Cap
AT442 .394" (10.0mm) Dia. Snap-on Cap For use with Plunger Code L Cap Material: Polycarbonate Finish: Glossy
For use with Plunger Code S Cap Material: PBT Finish: Glossy
For use with Plunger Code S Cap Material: PBT Finish: Glossy
(6.5) .256
(7.6) .299
(8.0) .315
(8.0) .315
(8.0) Dia .315
M2.3 P0.4
(8.0) Dia .315
(10.0) Dia .394
M2.3 P0.4
(10.0) Dia .394
Cap Colors Available:
A
Black
B
White
C
Red
E
Yellow
F
Green
G
Blue
H
Gray
03-07
NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com
Bushing Mount Miniature Pushbuttons
TYPICAL SWITCH DIMENSIONS
Solder Lug Single Pole
Series MB2000
1/4-40 Thd Keyway
(1.1) x (2.0) Typ .043 x .079
(0.8) Typ .031
3
(10.0) Dia .394
(4.7) Typ .185 (0.5) .020 (4.5) .177
COM
2 1
(13.0) .512
(2.3) .091 (7.9) .311 (8.0) .315 (8.5) .335
(3.5) .138 (21.0) .827
(2.0) .079
MB2011SS1W01-CA
Solder Lug
Double Pole
1/4-40 Thd Keyway (10.0) Dia .394
(1.1) x (2.0) Typ .043 x .079
(0.8) Typ .031
6 3 2 1
(4.7) Typ .185 (0.5) .020 (4.5) .177
COM
5 4
(13.0) .512
(2.3) .091 (12.7) .500 (8.0) .315 (8.5) .335
(3.5) .138 (21.0) .827
(2.0) Typ .079 (4.8) .189
MB2061SS1W01-CA
Solder Lug
Four Pole
1/4-40 Thd Keyway (10.0) Dia .394
(1.1) x (2.0) Typ .043 x .079
(0.8) Typ .031
12 9 8 7 6 5 4 3 2 1
(4.7) Typ .185 (0.5) .020
COM
11 10
(13.0) .512
(2.3) .091 (22.3) .878 (8.0) .315
(3.5) .138 (8.5) .335
(4.5) .177 (21.0) .827
(2.0) Typ .079 (4.8) Typ .189
MB2181SS1W01-CA NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com 03-07
Bushing Mount Miniature Pushbuttons
HARDWARE
Standard Hardware AT513H for Inch AT513M for Metric Hexagon Nut 2 included with each switch (1 with splashproof models) Material: Brass with Nickel plating
M6 P0.75 (8.0) .315 (6.4) Dia (10.2) Dia .252 .402
Series MB2000
Optional Hardware
AT509 Lockwasher 1 included with each switch (not with splashproof models) Material: Steel with Zinc/Chromate
AT516 O-ring for Splashproof Bushing 1 included with each splashproof model Material: Nitrile butadiene rubber
AT507H for Inch AT507M for Metric Locking Ring Material: Steel with Zinc/Chromate
(6.0) Dia .236
(6.07) Dia (9.63) Dia .239 .379
(2.0) .079 (5.5) .217
(12.0) Dia .472
(9.0) .354
(1.5) .059
(0.5) .020
(1.78) .070
(1.7) .067
(0.8) .031
Optional Mounting Collars/Conical Nuts AT512H for Inch AT512M for Metric Conical Nut Used with .315" (8.0mm) Dia. Cap (cap code B) Material: Brass with chrome plating AT512CH for Inch AT512CM for Metric Conical nut Used with .394" (10.0mm) Dia. Cap (cap code C) Material: Brass with chrome plating
Optional Splashproof Boots for S Plunger AT4041H for Inch AT4041M for Metric Boot for Momentary Material: Silicone rubber AT4042H for Inch AT4042M for Metric Boot for Alternate Material: Silicone rubber
M6 P0.75 or 1/4-40 Thd
M2.3 P0.4 (13.0) Dia .512 (10.5) Dia .413 (14.0) Dia .551 (12.2) Dia .480 (10.8) .425 (4.9) Dia .193 (6.0) Dia .236 (8.5) .335 (10.0) .394 (8.5) .335 (10.0) .394 (10.8) .425 (4.9) Dia .193 (6.0) Dia .236
A
(8.5) .335 (10.0) .394
A
(10.0) .394
(4.0) Max .157
(10.0) .394
(4.0) Max .157
(4.0) Max .157 (3.5) Min .138
(4.0) Max .157 (3.5) Min .138
Dimension A = Cap Height .091" (2.3mm) for Momentary with Plunger Code S .157" (4.0mm) for Alternate with Plunger Code S .142" (3.6mm) for Momentary & Alternate with Plunger Code L
Operating Life 100,000 Boots for momentary devices are accompanied by a threaded adaptor which extends the length of the plunger.
Operating Life 30,000
NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com
03-07

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