MLRR-3 Datasheet, PDF (1/2 Pages) HAMLIN Position and Movement Sensor Solutions – Miniature normally open switch

Axial Lead Reed Switches
High Power > MLRR-3
MLRR-3 15.2mm Miniature Close Differential Reed Switch
RoHS
Agency Approvals
Agency
Agency File Number Ampere-Turns Range
E47258
E471070
DEMKO 14 ATEX 1393U
17-38 AT
17-38 AT
Dimensions
Dimensions in mm
CL OF OVERLAP
28.32
(1.115) REF.
2.66
(.105) MAX.
0.61
(0.024) DIA. REF.
20.19
(.795) MIN.
15.24
(.600) MAX.
56.64
(2.230) NOM.
Description
The MLRR-3 Reed Switch is a miniature, normally open switch with a 15.24mm
long x 2.54mm diameter (0.600” x 0.100”) glass envelope, capable of switching
200Vdc at 20W with close differential (CD) characteristics. It has high insulation
resistance of 10¹⁰ ohms minimum and contact resistance less than
100 milli-ohms.
This reed switch is also available in a surface mount version, that is, MLSM-3.
It can handle light inductive loads.
Features
• Miniature normally open switch
• Capable of switching 200Vdc or
01.0A at up to 20W.
• Available sensitivity range 17-38 AT
• Close differential AT between PI
and DO value
• Maximum switched current of
1.0Amps
Benefits
• Hermetically sealed switch contacts
are not affected by and have no
effect on their external environment
• Zero operating power required for
contact closure
Applications
• Security
• Limit Switching
• Office Equipments
• Light Inductive Loads
Switch Type
Contact Form
A (SPST-NO)
Materials
Body: Glass
Leads: Tin Plated Nickel Iron
Note: SPST-NO = Single-pole, single-throw, normally open
Electrical Ratings
Contact Rating ¹
Watt - max.
20
Voltage ³
Current ³
Resistance
Capacitance
Temperature
Switching ²
Breakdown ⁴
Switching ²
Carry
Contact, Initial
Insulation
Contact
Operating
Storage ⁵
Vdc - max.
Vac - max.
Vdc - min.
Adc - max.
Aac - max.
Adc - max.
Ω - max.
Ω - min.
pF - typ.
°C
°C
200
140
250
1.0
0.7
1.2
0.100
10¹⁰
0.4
-40 to +125
-65 to +125
Notes:
1. Contact rating - Product of the switching voltage and current should never exceed the wattage rating. Contact Littelfuse for additional load/life information.
2. When switching inductive and/or capacitive loads, the effects of transient voltages and/or currents should be considered. Refer to Application Notes AN108A and AN107 for details.
3. Electrical Load Life Expectancy - Contact Littelfuse with voltage, current values along with type of load.
4. Breakdown Voltage - per MIL-STD-202, Method 301.
5. Storage Temperature - Long time exposure at elevated temperature may degrade solderability of the leads.
© 2015 Littelfuse
Specifications are subject to change without notice.
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