MDSR-7 Datasheet, PDF (2/2 Pages) HAMLIN Position and Movement Sensor Solutions – Sub-miniature normally open switch with 12.7mm x 1.8mm

Axial Lead Reed Switches
Low Power > MDSR-7
MDSR-7 12.7mm Sub-miniature Reed Switch
Product Characteristics
Operating Characteristics
Operate Time ¹
Release Time ¹
Shock ²
Vibration ²
Resonant Frequency
Magnetic Characteristics
11ms 1∕2 sine wave
50-2000 Hertz
0.6ms - max.
0.2ms - max.
100G - max.
30G - max.
5.5kHz - typ.
Pull-In Range ³
Ampere Turns
Rating Sensitivity ⁴
Test Coil
Ampere Turns
Notes:
1. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A,diode suppressed coil (Coil II).
2. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202.
3. Pull-In Range - Contact Littelfuse for narrower AT ranges available.
4. Rating Sensitivity - The value at which contact ratings and operating characteristics are determined. Derating may be required below this value.
5. Custom modifications of forming and/or cutting of reed switches are available. Please contact Littelfuse.
10-25
20
L4989
Drop-Out vs. Pull-In Chart
25
Part Numbering System
MDSR-7-10-15
20
Max.
Series
15
AT Range
Min.
10-25 AT
Example:
10
10-15 AT
10-15 AT product is
15-20 AT
MDSR-7-10-15
20-25 AT
5
Note: These AT values are the before-modification values of the bare reed switch.
0
0
5
10
15
20
25
30
35
Pull-In (AT, L4989 Coil)
Note: Chart represents the range of Drop-Out, min to max for a given Pull-In value.
Packaging
Packaging Option
Bulk
Packaging Specification
Bulk
Quantity
1000
Quantity & Packaging Code
N/A
Taping Width
N/A
© 2015 Littelfuse
Revised: 10/09/15
Specifications are subject to change without notice.
littelfuse.com