19.30±0.25 2x 0.00 MIN
2x 1.14±0.10
2.84 MAX
Ø2.28 MAX
(.090) (.045±.004)
14.00 MAX
(.551)
(.112)
(.000)
(.690±.010)
(.760±.010)
17.52±0.25
2x 1.30 (.051)
2x 2.34 (.092)
(.630)
16.00
www.hamlin.com
DIMENSION S mm (inch)
MASM-14 Features and Benefits
Features
●Sub-miniature, surface mount
normally open switch
●14mm x 2.28mm (0.551” x 0.090”)
glass envelope
●Capable of switching 200 Vdc at up
to 10 Watts
●Switching current up to 0.5 Amps
●Low close/open hysteresis
(close differential)
●10¹º Ohms insulation resistance
●RoHS compliant
Benefits
●Hermetically sealed switch contacts
are not affected by and have no
effect on their external environment
●No minimum switching voltage or
current
●Low, stable contact resistance
●Zero operating power required for
contact closure
●Fit and forget durability
Applications
●Position Sensing
●Proximity Sensing
●Sensing Float Position
for Liquid Level
●Industrial Controls
●Office Equipment
●Home Appliances
SWITCH TYPE MASM-14
Contact Form A (SPST-NO)
Certifications File Numbers E47258, E471070
ELECTRICAL RATINGS
Contact Power Rating (2) W / VA - max. 10
Voltage Switching
Breakdown
Vdc - max.
Vac - max.
Vdc - min.
200
140
200
Current Switching
Carry
Adc - max.
Aac - max.
Adc - max.
0.50
0.35
1.00
Resistance Contact, Initial
Insulation
Ωmax.
Ωmin.
0.100
10¹º
Capacitance Contact pF - typ. 0.3
Temperature Operating
Storage (6)
°C
°C
-40 to +125
-65 to +125
OPERATING CHARACTERISTICS
Operate Time (3) ms - max. 0.6
Release Time (3) ms - max. 0.2
Shock 11ms ½ sine wave G - max. 100
Vibration 50-2000 Hertz G - max. 30
Resonant Frequency Hz - typ. 5300
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
C0784 AB 10-MASM-14
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.
RECOMMENDED LAND PATTERN
www.hamlin.com
TAPE DIMENSION S mm (inch)
MASM-14 Reed Switch
Littelfuse/Hamlin USA Email: sales.us@hamlin.com
Littelfuse/Hamlin Europe Email: sales.uk@hamlin.com
Littelfuse/Hamlin China Email: sales.cn@hamlin.com
C0784 AB 10-MASM-14
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.
Packaging: Tape and Reel - 3,000 per Reel
REEL DIMENSION S mm (inch)
