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Manufacturer Part #


MSP3 Series SPST Vertical Round Off-Momentary Pushbutton Switch Panel Mount

ECAD Model:
Mfr. Name: TE Connectivity
Standard Pkg:
Product Variant Information section
Date Code: 1844
Product Specification Section
Technical Attributes
Attributes Table
Rated Voltage (VAC): 125VAC
Contact Current-Max: 3A
Switch Operation: Off-Mom
Circuitry: SPST
Insulation Resistance: 100MΩ
Illumination Color: Red
Cap Color: Red
Actuator Style: Round
Termination Style: Wire Lug
Operating Temperature: -20°C to +80°C
Contact Plating: Silver
Mounting Method: Panel Mount
Features & Applications

A switch is a device for making or breaking an electric circuit, or for selecting between multiple circuits. In the simplest case, a switch has two pieces of metal called contacts that touch to make a circuit, and separate to break the circuit. The contact material is chosen for its resistance to corrosion, because most metals form insulating oxides that would prevent the switch from working.

Its a Single pole, single throw (SPST) switches which has simple on off states controlled by a single mechanism.

Features :

  • Product Type = Switch - Mechanical
  • Configuration (Pole-Throw) = Single Pole - Single Throw
  • Mount Angle = Vertical
  • Contact Rating = 0.4 VA
  • Contact Plating = Gold
  • Contact Base Material = Copper Alloy

Material Specifications :

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

Environmental Specifications :

  • Operating Temperature:  -30 °C to +65 °C (-22 °F to +149 °F)
  • Storage Temperature:  -30 °C to +65 °C (-22 °F to +149 °F)

Typical Performance Characteristics :

  • Contact Rating:  Gold: 0.4 VA max. @ 20 VDC or peak AC Contact Rating:  Silver: 1A @ 125 VAC or 28 VDC resistive
  • Initial Contact Resistance:  20 milliohms max
  • Contact Timing:  Break-before-make
  • Insulation Resistance:  1000 megohms @ 500 VDC min
  • Dielectric Strength:  1000 Volts @ sea level
  • Actuation Force:  50 to 400 Grams
  • Plunger/Actuator Travel:  0.762 mm [.030 in.]
Pricing Section
Global Stock:
On Order:
Factory Stock:Factory Stock:
Factory Lead Time:
19 Weeks
Minimum Order:
Multiple Of:
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Web Price
Product Variant Information section