MARR-5 Datasheet, PDF (1/2 Pages) HAMLIN Position and Movement Sensor Solutions – Miniature normally open switch with 19.69mm x 2.66mm

Axial Lead Reed Switches
High Power > MARR-5
MARR-5 14mm 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 (inch)
CL OF OVERLAP
(1.117) REF.
28.37
(.105) MAX.
2.66
(.685) MIN.
17.39
(.775) MAX.
19.69
(2.235) NOM.
56.77
(.022) DIA. REF.
0.55
Description
The MARR-5 reed switch is a miniature, normally open switch with a 19.69mm
long x 2.66mm diameter (0.775” x 0.105”) glass envelope, capable of high voltage
switching of up to 1kVdc at 1mA. It has high insulation resistance of 10¹² ohms
minimum and contact resistance less than 100 milli-ohms.
Features
• Miniature normally open switch
• Capable of switching 1000Vdc at
1mA or 0.5A up to 10W
• Minimum voltage breakdown
2000 Vdc
• Available sensitivity range 17-38 AT
Benefits
• Hermetically sealed switch
contacts are not affected by and
have no effect on their external
environment
Applications
• Reed relays (particularly suitable
for high voltage breakdown
applications)
• Security
• Zero operating power required
for contact closure
• Limit switching
• Telecoms line switching
• Office equipment
Switch Type
Contact Form
A (SPST-NO)
Materials
Body: Glass
Leads: Tin-plated Ni-Fe wire
Note: SPST-NO = Single-pole, single-throw, normally open
Electrical Ratings
Contact Rating ¹
W/VA - max.
10
Voltage ³
Switching ²
Breakdown ⁴
Vdc - max.
Vdc - min.
1000
2000
Current ³
Switching ²
Carry
Adc - max.
0.50
Adc - max.
1.30
Resistance
Contact, Initial
Insulation
Ω - max.
Ω - min.
0.100
10¹²
Capacitance
Contact
pF - typ.
0.2
Temperature
Operating
Storage ⁵
°C
-75 to +125
°C
-75 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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