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Littelfuse MDCG41218 Reed Switch

This reed switch features a single-pole, single-throw contact configuration with a carry current of 1.2 Amps. It supports a maximum switching voltage of 200 VDC and has an operate time of approximately 0.6 milliseconds. The sensor's sensitivity range is between 12 to 18 AT, making it ideal for signal switching applications. Its hermetically sealed glass envelope ensures stability and durability in various environments, including telecoms and office equipment. The switch is recognized by Underwriters Laboratories and provides low contact resistance and high insulation resistance for reliable operation.

Authorized Distributors
Source:DigiKey
Part No:MDCG-4-12-18
Stock:1915
Inv Date:05-28-2026
Price: Unit price: $1.23
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Part No:MDCG-4-12-18
Stock:1583
Inv Date:05-29-2026
Price: Unit price: $1.13
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Part No:MDCG-4-12-18
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.93
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Part No:MDCG-4-12-18
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.73
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Part No:MDCG-4-12-18
Stock:33
Inv Date:05-29-2026
Price: N/A
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Littelfuse MDCG41218 Reed Switch Specifications:

  • Contact Form: SPST-NO
  • Contact Rating: 10 W
  • Switching Voltage: Max 200 VDC
  • Operate Time: 0.6 ms
  • Response Sensitivity: 12-18 AT
  • Max Carry Current: 1.2 Amps
  • Insulation Resistance: 10^8 Ohms
  • Switching Temperature Range: -40°C to +125°C
  • Hermetically Sealed Glass Envelope
  • UL Recognized, File 47258
  • Dimensions: 4.480 mm x 2.28 mm
  • Operating Humidity: 65% to 125%
  • Shock Resistance: Up to 100 Gs
  • Vibration Resistance: 30 G at 50-2000 Hz

Buy the Hamlin Series MDCG: Magnetic Reed Switch with SPST Configuration

Enhance your electronic projects with the Hamlin MDCG series reed switch, designed for precision and durability. This SPST-NO switch offers reliable switching with a maximum voltage of 200 VDC and a carry current of 1.2 Amps. Its hermetically sealed glass envelope ensures protection against environmental factors, making it ideal for telecoms, office equipment, and signal switching. Recognized by UL, it provides low contact resistance and high insulation resistance for dependable operation. Purchase online today for quality and performance you can trust.

Get Hamlin MDCG41218 today—built for reliable signal switching and long-lasting durability in various electronic applications.

Frequently Asked Questions

Where can I buy Littelfuse MDCG41218?

You can click on the BUY or RFQ button to purchase MDCG41218 from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part MDCG41218?

You can download the MDCG41218 datasheet or visit the Littelfuse website for support.

Who is the manufacturer of MDCG41218?

Littelfuse

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