"A" Series DESIGN FEATURES

• Toggle – Machined brass, heavy nickel plated.
• Bushing & Frame – Rigid one-piece die cast, copper flashed, heavy nickel plated.
• Fixed Contact – Welded construction.
• Terminal Seal – Epoxy sealing of terminals is standard.

"A" Series DESIGN FEATURES

• Toggle – Machined brass, heavy nickel plated.

• Bushing & Frame – Rigid one-piece die cast, copper flashed, heavy nickel plated.

• Fixed Contact – Welded construction.

• Terminal Seal – Epoxy sealing of terminals is standard.

"A" Series DESIGN FEATURES

• Toggle – Machined brass, heavy nickel plated.
• Bushing & Frame – Rigid one-piece die cast, copper flashed, heavy nickel plated.
• Fixed Contact – Welded construction.
• Terminal Seal – Epoxy sealing of terminals is standard.

GENERAL INFORMATION
MICRO SWITCH NT Series Toggle Switches meet severe environment application needs for a rugged, cost-effective Toggle switch. Quality construction features in clude a molded-in elastomer seal be tween the Toggle lever and bushing, and between the cover and case. In addition, the terminal inserts are molded into the high impact strength thermoplastic case.
Complete sealing of the switching chamber enables NT Toggles to comply with UL
508, paragraph 13.3 hosedown test.
These Switches can be used where panels are subjected to periodic splash and washdowns, such as are common to food and beverage equipment. They will also withstand exposure to heavy accumulations of early morning dew that may condense on the control panel in cabs of vehicles left outdoors overnight.

FEATURES
●Completely sealed switching
   chamber
● Step-design case provides added
   space between terminals to help
   prevent shorting
● 1, 2 or 4-pole circuitry
● Standard and pull to unlock levers.
● 2 or 3 positions, maintained and
   momentary action
● Spring-loaded actuating mechanism
   provides excellent tactile feedback
● High impact strength, non-tracking
   case enhances electrical stability
● Temperature range: –40 to 71°C
   (–40 to 160°F)
● UL recognized, File E12252, Vol. 1,
   Section 44
● CSA certified, File LR4442
● CE approved

[TYCO Electronic]

MATERIAL SPECIFICATIONS:
  Contacts ......................................Gold - gold plate, silver - silver plate
  Case Material..............................High temperature polyester
  Actuator Material........................Polyamide
  Terminals/Fixed Contacts ..........Tin lead plate
  Terminal Seal..............................SP epoxy, DP epoxy optional

ENVIRONMENTAL SPECIFICATIONS:
  Operating Temperature ..............-22°F to +149°F (-30°C to +65°C)
  Storage Temperature ..................-22°F to +149°F (-30°C to +65°C)
  Solder Heat Resistance ..............See page M3-4

TYPICAL PERFORMANCE CHARACTERISTICS:
  Contact Rating ............................Gold: 0.4 VA Max. @ 20 VDC or peak AC
                                        Silver: 1A @ 125 VAC or 28 VDC resistive
  Initial Contact Resistance ..........20 Milliohms max.
  Contact Timing ..........................Break-before-make
  Insulation Resistance ..................1,000 Megohms @ 500VDC min.
  Dielectric Strength......................1,000 Volts @ sea level
  Actuation Force ..........................50 to 400 Grams
  Plunger/Actuator Travel .............030" (.762)
  Life Expectancy..........................See below
  Note: Hardware included with Switches

General Description
The MAX4554/MAX4555/MAX4556 are CMOS analog ICs configured as force-sense Switches for Kelvin sensing in automated test equipment (ATE). Each Part contains high-current, low-resistance Switches for forcing current, and higher resistance Switches for sensing a voltage or switching guard signals. The MAX4554 contains two force Switches, two sense Switches, and two guard Switches configured as two triple-pole/single-throw (3PST) normally open (NO) Switches. The MAX4555 contains four independent single-pole/single-throw (SPST) normally closed (NC) Switches, two force Switches, and two sense Switches. The MAX4556 contains three independent single-pole/double-throw (SPDT) Switches, of which one is a force switch and two are sense Switches. These devices operate from a single supply of +9V to +40V or dual supplies of ±4.5V to ±20V. On-resistance (6Ω max) is matched between Switches to 1Ω max.
Each switch can handle Rail-to-Rail® analog signals. The off-leakage current is only 0.25nA at +25°C and 2.5nA at +85°C. The MAX4554 is also fully specified for +20V and -10V operation.
All digital inputs have +0.8V and +2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility.

Features
♦ 6Ω Force Signal Paths (±15V Supplies)
   1Ω Force Signal Matching (±15V Supplies)
♦ 60Ω Sense-Guard Signal Paths (±15V Supplies)
   8Ω Sense-Guard Signal Matching (±15V Supplies)
♦ Rail-to-Rail Signal Handling
♦ Break-Before-Make Switching (MAX4556)
♦ tON and tOFF = 275ns (±15V Supplies)
♦ Low 1µA Power Consumption
♦ >2kV ESD Protection per Method 3015.7
♦ TTL/CMOS-Compatible Inputs

Applications
   Automated Test Equipment (ATE)
   Calibrators
   Precision Power Supplies
   Automatic Calibration Circuits
   Asymmetric Digital Subscriber Line (ADSL) with Loopback

GENERAL DESCRIPTION
The ADG728 and ADG729 are CMOS analog Matrix Switches with a serially controlled 2-wire interface. The ADG728 is an 8-channel Matrix switch, while the ADG729 is a dual 4-channel Matrix switch. On resistance is closely matched between Switches and very flat over the full signal range. These Parts can operate equally well as either multiplexers, demultiplexers or switch arrays and the input signal range extends to the supplies.

FEATURES
    2-Wire Serial Interface
    2.7 V to 5.5 V Single Supply
    2.5 Ω On Resistance
    0.75 Ω On-Resistance Flatness
    100 pA Leakage Currents
    Single 8-to-1 Matrix Switch ADG728
    Dual 4-to-1 Matrix Switch ADG729
    Power-On Reset
    Small 16-Lead TSSOP Package
 
APPLICATIONS
    Data Acquisition Systems
    Communication Systems
    Relay Replacement
    Audio and Video Switching
    Automatic Test Equipment
   

Inside Kinked Leads Use -A after Ametherm’s Part # Outside Kinked Leads Use -B after Ametherm’s Part #

Inside Kinked Leads Use -A after Ametherm’s Part # Outside Kinked Leads Use -B after Ametherm’s Part #

[MICRO SWITCH a Honeywell Division]

Toggle Switches and Miniature Prewired Enclosed Switches