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Switches / Reed Switches / MDSM-4B-12-18
Datasheets
MDSM-4B-12-18 by: Littelfuse Inc

SWITCH REED SPST-NO 350MA 140V

Part Details for MDSM-4B-12-18 by Littelfuse Inc

Results Overview of MDSM-4B-12-18 by Littelfuse Inc

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MDSM-4B-12-18 Information

MDSM-4B-12-18 by Littelfuse Inc is a Reed Switch.
Reed Switches are under the broader part category of Switches.

Electrical switches are binary devices that control the flow of current in a circuit by either allowing or preventing the flow of electrons. Read more about Switches on our Switches part category page.

Price & Stock for MDSM-4B-12-18

Part # Distributor Description Stock Price Buy
DISTI # 38X7499
Newark Mdsm-4B 5276 12-18/ Bulk |Littelfuse MDSM-4B-12-18 RoHS: Not Compliant Min Qty: 1000 Package Multiple: 1 Date Code: 0 Container: Bulk 0
  • 1,000 $0.7790
  • 2,500 $0.6970
$0.6970 / $0.7790 Buy Now
DISTI # F7882-ND
DigiKey SWITCH REED SPST-NO 350MA 140V Min Qty: 1 Lead time: 15 Weeks Container: Box 679
In Stock
  • 1 $1.7000
  • 10 $1.3800
  • 25 $1.2692
  • 100 $1.1169
  • 300 $1.0074
  • 500 $0.9597
  • 1,000 $0.8978
  • 2,500 $0.8210
  • 5,000 $0.7947
$0.7947 / $1.7000 Buy Now
DISTI # 934-MDSM-4B12-18
Mouser Electronics Magnetic / Reed Switches MDSM-4B 5276 12-18 RoHS: Compliant 30
  • 1 $1.1600
  • 10 $1.1300
  • 50 $1.0100
  • 100 $0.8500
  • 200 $0.8050
  • 500 $0.7490
  • 1,000 $0.7140
  • 2,500 $0.6540
$0.6540 / $1.1600 Buy Now
DISTI # 75565356
RS MDSM-4B 5276 12-18 Min Qty: 1000 Package Multiple: 1 Lead time: 8 Weeks, 0 Days Container: Bulk 0
  • 1,000 $1.2300
  • 2,000 $1.1700
  • 4,000 $1.1300
$1.1300 / $1.2300 RFQ
DISTI # 000000000007266770
Sager Magnetic / Reed Switches MDSM-4B 5276 12-18 Min Qty: 1000 0
  • 1,000 $0.8203
  • 2,000 $0.7825
$0.7825 / $0.8203 Buy Now

Part Details for MDSM-4B-12-18

MDSM-4B-12-18 CAD Models

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MDSM-4B-12-18 Part Data Attributes

Parametric Data
MDSM-4B-12-18 Littelfuse Inc
Buy Now Datasheet
Compare Parts:
MDSM-4B-12-18 Littelfuse Inc SWITCH REED SPST-NO 350MA 140V
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer LITTELFUSE INC
Reach Compliance Code compliant
Samacsys Manufacturer LITTELFUSE
Body Height 15.24 mm
Body Length or Diameter 2.28 mm
Contact (AC) Max Rating R Load .35A@140VAC
Contact Current(AC)-Max 0.35 A
Contact Current(DC)-Max 0.5 A
Contact (DC) Max Rating R Load .5A@200VDC
Contact Voltage(AC)-Max 140 V
Contact Voltage(DC)-Max 200 V
Mounting Feature SURFACE MOUNT-STRAIGHT
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Packing Method BULK
Pull-in Value-Max 18 AT
Pull-in Value-Min 12 AT
Resonant Frequency-Nom 3.9 kHz
Sealing HERMETICALLY SEALED
Surface Mount NO
Switch Function SPST
Switch Type DRY REED SWITCH
Terminal Finish TIN
Termination Type SOLDER

MDSM-4B-12-18 Frequently Asked Questions (FAQ)

  • Littelfuse provides a recommended PCB layout and land pattern in their application note AN9313, which can be found on their website. It's essential to follow these guidelines to ensure proper thermal performance and reliability.

  • To select the correct fuse, consider factors such as the maximum voltage, current, and power rating of your circuit. You should also consider the fuse's interrupting rating, which is the maximum current the fuse can safely interrupt. Littelfuse provides a fuse selection guide on their website to help with this process.

  • The MDSM-4B-12-18 is a specific model with a unique combination of characteristics, such as voltage rating, current rating, and interrupting rating. Other similar fuses from Littelfuse may have different ratings or features, so it's essential to review the datasheet and application notes to ensure the correct fuse is selected for your specific application.

  • The MDSM-4B-12-18 is rated for operation up to 125°C, but its performance may degrade at higher temperatures. If your application requires operation above 125°C, you should consider a fuse with a higher temperature rating or consult with Littelfuse's technical support team for guidance.

  • The MDSM-4B-12-18 meets various safety standards, including UL and IEC. However, it's essential to review the specific certification and compliance requirements for your application and ensure the fuse meets those requirements. You may need to consult with Littelfuse's technical support team or a qualified safety expert to ensure compliance.

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