MC-1425 Miniature Close-differential Reed Switch
This Form A type MC-1425 Close Differential Reed Switch is built with specially pressed blades with slightly higher rigidity for close differential, low hysteresis applications where an operate and release is required with minimum magnet travel, or minimum change in coil voltage. It also uses a glass tube with a higher wall thickness and is very robust. The cropped of this Close Differential Reed Switch is suitable for smaller plastic housings and can be soldered to cables, the SMD version is suitable for reflow on PCBs, and the vertical and horizontal mount versions are suitable for mounting on through hole PCBs.
MC-1425 Close Differential Reed Switch with Full Length Leads 
MC-1425 Close Differential Reed Switch with Cropped Leads 
MC-1425 Close Differential Reed Switch with SMD Formed Leads 
MC-1425 Close Differential Reed Switch for Horizontal PCB Mounting 
MC-1425 Close Differential Reed Switch for Vertical PCB Mounting
Features
Close Differential Characteristics. Ruthenium contact. 14.0 mm Glass length. Normally Open. Inert gas filled. 4 types of Lead Formations.
Benefits
Omni-polar. Does not require power for operation. Sputtered Contact. RoHS Compliant. Not ESD Sensitive.
Cylindrical and Rectangular Magnets
 | Drawing of Cylindrical MagnetsDrawing of Rectangular Bar Magnets starFeaturesNdFeB High Energy. Nickel coated. Energized Continue reading Nov 18, 2020 |
Actuation Distances for MC-1425 Reed Switches
 | For easy selection of AT band and Magnet for an application, we offer Actuation distances for the MC-1425 Close Differential Reed Switch Continue reading Nov 25, 2020 |
Electrical
| Contact Form | A | |
| Contact Rating (max) | W/VA | 10.0 |
| Switching Current (max) | A | 0.5 |
| Carry Current (max) | A | 1.5 |
| DC Switching Voltage (max) | VDC | 180 |
| AC Switching Voltage (max) | VAC | 130 |
| Breakdown Voltage (min) | VDC | 200 |
| Contact Resistance (max) | mΩ | 150 |
| Insulation Resistance (min) | Ω | 1011 |
| Capacitance (typ) | pF | 0.2 |
Miscellaneous
| Operate Time (max) | ms | 0.50 |
| Bounce Time (max) | ms | 0.15 |
| Release Time (max) | ms | 0.15 |
| Resonance Frequency (typ) | Hz | >2000 |
| Operating Frequency (max) | Hz | 500 |
| Operating Temperature | °C | -40 to +200 |
| Shock Resistance (½Sin wave for 11ms) | G | 50 |
| Vibration Resistance (10-2000Hz) | G | 20 |
| Test Coil Number | 717 102 005 |
Ordering Code
MC-1425-(Operate Band)-(Formation Code)
| Operate Band | AT | 10-40 |
| Corresponding Release Band | AT | 7.5-30 |
| Formation Code | Lead Type |
| Full Length Leads | |
| C | Cropped |
| S | SMD |
| H | Horizontal Mount |
| V | Vertical Mount |
Examples: MC-1425-12-15 denotes 12-15 Operate Band (AT) with Full Length leads.
MC-1425-10-15-S denotes 10-15 Operate AT band with SMD Formed leads.
Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Higher Insulation Resistance, Special Release Limits, Gold plated leads.
Usage Notes
Here are some of the recommended usage notes to ensure maximum durability of this product. The complete usage notes are available here.
Ampere Turn Selection
 | For any application, it is important to select the correct Ampere Turn (AT) or magnetic sensitivity of a Reed Switch, Reed Sensor or Continue reading Aug 27, 2020 |
Product Handling
 | Reed Switch Handling Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro cracks in the glass Continue reading Aug 31, 2020 |
Manual Soldering
 | Soldering of Reed Switches and Reed Sensors requires some care to ensure that these delicate devices are not inadvertently damaged. Damage Continue reading Nov 10, 2020 |
Ferro-magnetic parts
 | Reed Switches use an alloy of Nickel and Iron with a few other elements that make the alloy Ferro-magnetic and having a low Remanence. Continue reading Sep 4, 2019 |
Potting and Encapsulation
 | Epoxy dispensing Nozzle When potting or encapsulating reed switch assemblies in custom housings, selection of materials are important. Continue reading Sep 4, 2019 |
Reed Contact Protection Circuits
 | It is assumed that the ideal reed switch load is a Resistive Load, but it is almost impossible to reduce any load to purely resistive. Continue reading Aug 31, 2020 |
Applications
Although we can never restrict the use of a reed switch to a particular field, the following is a list of some of the applications that the MC-1425 Close Differential Reed Switch is known to perform well.
Float Switches in Portable Air Conditioners
 | Portable Cooler Air Conditioners remove heat and moisture from an occupied space thereby improving the comfort of the occupants. The Continue reading Nov 6, 2020 |
Magnet sensors in Top-loading washing machines
 | Top-loading Washing Machine Traditional top-loading Washing Machines have some advantages over the front-loading ones. One does not Continue reading Nov 6, 2020 |
Reed switches in Gear speed and direction sensing
 | Gears Mechanical machinery always have a set of manual controls that not only direct the machinery between a forward and reverse Continue reading Nov 7, 2020 |
Reed switches in Ferrous part detection
 | Pick and Place Robot For a cost effective solution to be used in heave machine automation where magnets cannot be used due to the sheer Continue reading Nov 7, 2020 |
Magnet Sensors for Door and window Security
 | Door/Window Security Home and Workspace security is paramount and most newly constructed spaces integrate security products during Continue reading Nov 6, 2020 |
Reed sensors in Rowing Electronics
 | Row Boat Rowing electronics are useful for tracking rowing information, both in actual competitive rowing as well as in rowing machines Continue reading Nov 7, 2020 |
Reed sensors for Two Wheeler and E-Bike Brake Sensing
 | Motorbike throttle Motor bikes and other two wheelers normally use plunger type switches for detecting depression of the front and rear Continue reading Feb 17, 2022 |
Reed Switches in Automobile Relays
 | Automobile Dashboard Reed Switches find various applications in automobile electronics, for signal switching using reed relays, and in Continue reading Nov 7, 2020 |