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Honeywell 311SM3T Subminiature Basic Switch

Honeywell's MICRO SWITCH SM Series represents an industry-leading solution for snap-action switching. These subminiature switches are engineered for consistent performance across a broad range of conditions, combining a compact size with ample electrical capacity and extended life. Featuring high-precision and repeatability, the SM Series offers gold and bifurcated gold contacts for low-energy switching and maximum reliability, suitable for applications requiring robust and dependable switching functionality. MIL-PRF-8805 qualified listings and FAA-PMA approvals further enhance its suitability for demanding environments.

Authorized Distributors
Source:Newark
Part No:311SM3-T
Stock:202
Inv Date:06-01-2026
Price: Unit price: $15.35
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Source:DigiKey
Part No:311SM3-T
Stock:548
Inv Date:06-01-2026
Price: Unit price: $17.67
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Part No:311SM3-T
Stock:137
Inv Date:06-02-2026
Price: Unit price: $32
Buy/RFQ:
Part No:311SM3-T
Stock:277
Inv Date:06-01-2026
Price: Unit price: $17.44
Buy/RFQ:
Part No:311SM3-T
Stock:26
Inv Date:06-01-2026
Price: Unit price: $33.99
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Honeywell 311SM3T Subminiature Basic Switch Specifications:

  • Operating Force: 0.06 N [6 g]
  • Differential Travel: 0.025 mm [0.001 in]
  • Mechanical Life: Up to 10,000,000 operations
  • Operating Temperature: -54°C to 204°C [-65°F to 400°F]
  • Voltage: 115 Vac, 125 Vac, 250 Vac, 30 Vdc
  • Ampere Rating: 0.1 A to 11 A
  • Circuitry: SPDT
  • Termination: Quick connect, solder, PCB
  • Contacts: Silver, gold plated, bifurcated gold
  • Housing: Phenolic
  • Size: 12,7 mm H x 6,35 mm W x 20,3 mm L [0.5 in H x 0.25 in W x 0.8 in L]
  • Agency Approvals: UL, CE, CSA, ENEC, MIL-PRF-8805, FAA-PMA

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Frequently Asked Questions

Where can I buy Honeywell 311SM3T?

You can click on the BUY or RFQ button to purchase 311SM3T from an authorized Honeywell distributor.

How do I troubleshoot issues or seek technical support for part 311SM3T?

You can download the 311SM3T datasheet or visit the Honeywell website for support.

Who is the manufacturer of 311SM3T?

Honeywell

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