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
 | We offer a range of magnets in different sizes and shapes, specially selected to...Continue reading |
Actuation Distances for MC-1425 Reed Switches
 | On/Off distances for the 14.0 mm MC-1425 reed switch having Cropped, SMD, Horizontal Mount...Continue reading |
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...Continue reading |
Product Handling
 | Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro...Continue reading |
Manual Soldering
 | Manual Soldering of reed switch leads may be required when using custom plastic housing...Continue reading |
Ferro-magnetic parts
 | Using Ferro-magnetic mounting parts or screws within a 100 mm vicinity of a reed switch will...Continue reading |
Potting and Encapsulation
 | As some potting compounds cure over 24 hours, the glass seals should be protected....Continue reading |
Reed Contact Protection Circuits
 | When a reed switch is to be connected to an inductive load or a...Continue reading |
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 ACs cool an area by removing the humidity in the room and storing...Continue reading |
Magnet sensors in Top-loading washing machines
 | Magnet Sensors are used in Top-loading washing machines to stop the cycle instantly, if...Continue reading |
Reed switches in Gear speed and direction sensing
 | Miniature ferrous part detection sensors can be positioned near gears to sense the speed...Continue reading |
Reed switches in Ferrous part detection
 | Ferrous part detection sensors are built by positioning two weak magnets near the seals...Continue reading |
Magnet Sensors for Door and window Security
 | Magnets can be mounted on doors and windows, and reed sensors, on the fixed...Continue reading |
Reed sensors in Rowing Electronics
 | Reed Sensors are used in water proof rowing equipment like stroke meters to count...Continue reading |
Reed sensors for Two Wheeler Brake Sensing
 | Motor bikes and other two wheelers use plunger type switches for detecting depression of...Continue reading |
Reed Switches in Automobile Relays
 | Miniature reed relays, capable of switching high loads are used in automobile climate control...Continue reading |