Littelfuse Surface Mount Reed Switch

View all Reed Switches

Subtotal (1 bag of 5 units)*

£3.55

(exc. VAT)

£4.25

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 4,290 unit(s) ready to ship
  • Plus 30 unit(s) ready to ship from another location
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
Per Bag*
5 +£0.71£3.55

*price indicative

RS Stock No.:
905-8904
Mfr. Part No.:
MDSM-4R-12-18
Brand:
Littelfuse
Find similar products by selecting one or more attributes.
Select all

Brand

Littelfuse

Contact Resistance

100mΩ

AT Value Range

12-18AT

Width

2.28mm

Length

15.24mm

Dimensions

2.28 (Dia.) x 15.24mm

MDSM Surface Mount Reed Switch, Low Power


These surface-mount reed switches can switch 200 V dc at 10 W. They have a low electrical footprint and require zero operating power to close the contacts. These units are hermetically sealed and with magnetically operated contacts they are highly resilient to contamination. Even operating in conditions long after optical and other technology reed switches would have failed. They have Form A (SPST normally open) contacts.

Item 905-8900 has a glass envelope measuring 10.16 x 1.8 mm and has an AT 20-25 sensitivity rating.
Item 905-8904 has a glass envelope measuring 15.24 x 2.28 mm and has an AT 12-18 sensitivity rating.

Potential Applications


Position Sensing
Level sensing
Industrial Controls
Security
Limit Switching
Office Equipment
Metering

Features


Surface mounting normally open switch
Capable of switching 200 V dc or 0.5 A at up to 10 W
Low, stable contact resistance
Operating temperature range: -40°C to +125°C

Standards

UL, ATEX Class I, Zone 2


Littelfuse

Related links