MISM-3V1 Datasheet, PDF (1/3 Pages) HAMLIN Position and Movement Sensor Solutions – Surface mounting normally open switch

Surface Mount Reed Switches
Low Power > MISM-3V1
MISM-3V1 7mm Surface Mount Reed Switch
RoHS
Description
The MISM-3V1 surface mount reed switch is a sub-miniature, normally open
switch with a 7mm long x 1.8mm diameter (0.276” x 0.071”) glass envelope,
capable of switching up to 0.25 Amps.
This reed switch is a surface mount version of the MITI-3V1. It has a high
insulation resistance of 10¹² Ohms minimum and a contact resistance of less
than 100 milliohms.
Agency Approvals
Features
• Ultra-miniature surface mount
normally open switch
• Available sensitivity range 6-10 AT
• Capable of switching 170 Vdc or
0.25A up to 10W
Agency Agency File Number Ampere-Turns Range
E47258
E471070
6-10AT
DEMKO 14 ATEX 1393U
6-10 AT
Dimensions
Dimensions in mm
Ø1.80 MAX
(.071)
2x0.84±0.10
(.033±004)
Benefits
• Hermetically sealed switch
contacts are not effected by and
have no effect on their external
environment
• Zero operating power required
for contact closure
Applications
• Position Sensing
• Level Sensing
• Meter Equipment
• Excellent for switching
microcontroller logic level loads
• Very low space requirement
• Security
• Office Equipment
7.00 MAX
(.276)
0.02 MIN
(.001)
9.91±0.25
(.390±010)
13.72±0.25
(.540±010)
2.28 MAX
(.090)
RECOMMENDED LAND PATTERN
2x1.12 (044)
2x3.25 (.128)
8.61
(.339)
Note: Land pattern is Littelfuse recommendation
only. User is responsible for proper PCB design.
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
Voltage ³
Current ³
Resistance
Capacitance
Temperature
Switching ²
Breakdown ⁴
Switching ²
Carry
Contact, Initial
Insulation
Contact
Operating
Storage ⁵
W/VA - max.
Vdc - max.
Vac - max.
Vdc - min.
Adc - max.
Aac - max.
Adc - max.
Ω - max.
Ω - min.
pF - typ.
°C
°C
10
170
120
175
0.25
0.18
0.50
0.150
10¹²
0.3
-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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