COMMON
L
C OF OVERLAP
Ø0.51 REF.
(2.066)
52.48 REF.
(.100)
2.54 MAX.
(1.115)
(.700)
(.580)
17.78 MIN.14.73 MAX.
0.55 (.022) MAX
0.20 (.008) MIN
N.C.
N.O.
2.54 REF. (.100)
1.57 (.062) REF.
28.32 REF.
2X Ø0.56 REF.
(.022) (.020)
51.66 REF.
(2.034)
(.180)
4.57 REF.
AT 1.6 FROM SEAL
N.C.
N.O.
(.031)
0.80 REF.
www.hamlin.com
DIMENSION S mm (inch)
MDRR-DT Features and Benefits
Features
●Miniature SPDT changeover switch
●14.73mm x 2.54mm (0.580” x
0.100”) glass envelope
●Capable of switching 175 Vdc at up
to 5 Watts
●Switching current up to 0.25 Amps
●109Ohms insulation resistance
●Available sensitivity range 10-30 AT
●RoHS Compliant
Benefits
●Hermetically sealed switch contacts
are not affected by and have no
effect on their external environment
●Can be used as changeover or
normally closed contact
●No minimum switching voltage or
current
●Zero operating power required for
contact closure
●Fit and forget durability
Applications
●Position Sensing
●Proximity Sensing
●Industrial Controls
●Office Equipment
●Home Appliances
SWITCH TYPE MDRR-DT
Contact Form C (SPDT)
Underwriters Laboratories Recognized, UL File E47258 (Note 1)
ELECTRICAL RATINGS
Contact Power Rating (2) W / VA - max. 5
Voltage Switching
Breakdown
Vdc - max.
Vdc - min.
175
200
Current Switching
Carry
Adc - max.
Adc - max.
0.25
1.50
Resistance Contact, Initial
Insulation
Ωmax.
Ωmin.
0.100
109
Capacitance Contact pF - typ. 1
Temperature Operating
Storage (6)
°C
°C
-40 to +125
-65 to +125
OPERATING CHARACTERISTICS
Operate Time (3) ms - max. 0.7
Release Time (3) ms - max. 1
Shock 11ms ½ sine wave G - max. 50
Vibration 50-2000 Hertz G - max. 30
Resonant Frequency Hz - typ. 11000
MAGNETIC CHARACTERISTICS
Pull-In Range (4) Ampere Turns 10-30
Drop-out Ampere Turns - min. 5
Rating Sensitivity (5) Ampere Turns 20
Test Coil L4989
Notes:
1. For details on electrical specifications, contact Littelfuse / Hamlin.
2. Contact Power Rating - Product of the switching voltage and current should never exceed this rating.
3. Operate (including Bounce) and Release Time - per EIA/NARM RS421A, diode suppressed coil.
4. Pull-In Range - Contact Littelfuse / Hamlin for tolerances available within this range.
5. Rating Sensitivity - The value at which contact ratings and operating characteristics are determined. Derating may be required below this value.
6. Storage Temperature - Long term exposure at elevated temperature may degrade solderability of leads.
Littelfuse/Hamlin USA Email: sales.us@hamlin.com
Littelfuse/Hamlin Europe Email: sales.uk@hamlin.com
Littelfuse/Hamlin China Email: sales.cn@hamlin.com
C0674 AA 10-MDRR-DT
Specifications and descriptions in this datasheet are as
accurate as known at the time of publication, but are
subject to changes without notice. Product performance
may be affected by the application to which the product
is applied.
TIN PLATED LEADS
“F” - FORMED
“U” - UNFORMED
PART NUMBER EXAMPLES:
MDRR-DT-15-20-F
MDRR-DT-20-25-U
