www.clare.com
Applications
Features Description
Ordering Information
•Proximity Sensors
•Relays
•Telecommunications
•Automation control
•Medical
Clare’s Ultra-Mini DyadTM is well suited for small, signal
switching applications. The small size lends itself to surface
mountable applications; working well on higher density
PC boards. The Ultra-Mini DyadTM has sputtered ruthenium
contacts and an extraordinary seal strength achieved by
a patented laser sealing of the leads. In low level or dry
switching environments, switches typically exceed 1 billion
operations.
•Small size
Easily surface mountable
•Hermetically sealed
•Easily formed leads
Maximum Operate Value (NI)
Minimum Operate Value (NI)
UM2 S XX XX
Standard Test Coil
UM2
Part # Coil-1
Coil Definition NARM1 CTC01
Coil Resistance 1200Ω
Number of Turns 5,000
Wire Size 0.0399mm (AWG 46)
Bobbin Diameter (inside cell) 3.96mm
Winding Length 10.4mm
A complete part number is represented by the digits to the right. For example, UM2S1030 is
an ULTRA-MINI DYAD™ with a minimum operate value of 10, and a maximum of 30. Refer to
the switch operating specification charts for available ranges. Special ranges are available
upon request.
Surface Mount Ultra-Mini Dyad
Refer to operating characteristics table for complete part number.
Ultra-Mini DYAD™
Ultra-Mini DYAD™ Surface Mount
1 Tolerance = ± 1.5NI
2 Full Blade Sensitivity
3 Surface Mount Switches are packaged 3,000 parts per reel
1
Part # Operate Range (NI)1
UM2S1015 10 to 15
UM2S1020 10 to 20
UM2S1030 10 to 30
UM2S1520 15 to 20
UM2S1525 15 to 25
UM2S2025 20 to 25
Part # Operate Range (NI)1,2,3
UM2319 10 to 15
UM2315 10 to 20
UM2376 10 to 30
UM2325 15 to 20
UM2341 15 to 25
UM2378 20 to 25
Ultra-Mini Dyad™
UM2
DS-UM2-R2
www.clare.com
UM2
Rev. 2
Specifications
Absolute Maximum Ratings are stress ratings. Stresses
in excess of these ratings can cause permanent damage
to the device. Functional operation of the device at these
or any other conditions beyond those indicated in the
operational sections of this data sheet is not implied.
Exposure of the device to the absolute maximum ratings
for extended period may degrade the device and effect
its reliability.
Ratings (@ 25˚ C)
PARAMETER CONDITIONS SYMBOL MIN TYP MAX UNITS
Contact Ratings
Switching Voltage Max DC/Peak AC Resist VL - - 175 Volts
Switching Current Max DC/Peak AC Resist IL - - 0.25 Amps
Carry Current Max DC/Peak AC Resist IC - - 0.50 Amps
Contact Rating Max DC/Peak AC Resist - - - 5 VAs
Static Contact Resistance 100mV, 20mA CR - .120 0.30 Ω
Contact Material - - Ru - -
Electrical Ratings
Operate Sensitivity Full Blade Tolerance = ±1.5 NI - 10 - 30 NI
Release Sensitivity Full Blade Tolerance = ±1.5 NI - 5 - 30 NI
Insulation Resistance Between all isolated pins at 100V, IR 1091011 -W
25˚C, 40%RH
Capacitance Across Open Contacts - - 0.3 - pF
Dielectric Strength Between Contacts - 200 - - VDC/peak AC
Operate Time, At Nominal coil voltage, TOP - 0.4 - msec.
including bounce 30 Hz Square Wave
Release Time Zener-Diode Suppression TREL - 0.1 - msec.
Environmental Ratings
Operating Temperature TO -40 - 125 ˚C
Storage Temperature TA -40 - 125 ˚C
Soldering Temperature - - - 260 ˚C
Vibration Resistance 10Hz-1000Hz G - - 20 Gs
Shock Resistance 11±1ms, 1/2 Sine Wave S - - 30 Gs
Parameter Min Typ Max Units
Switching Voltage — — 175 Volts
Switching Current — — 0.25 Amps
Carry Current — — 0.50 Amps
Switching Fequency — 500 — Hz
Contact Resistance — — 300 mΩ
1 Derate Linearly 1.33 mw / oC
2 Derate Linearly 3.67 mw / oC
Ultra-Mini Dyad™
2
UM2
www.clare.com
Rev. 2
Mechanical Dimensions
Recommended Pad Sizes
Dimensions
mm
inches
Ultra-Mini DYAD™ SMT
(.035 Ref)
0.89
(.035)
0.89
(.040 Ref)
1.02
(.005 Ref)
0.13
(.004 Min)
0.09
(.232 Max.)
5.89
(.400)
10.16
(.076 Ref)
1.93
(.060 Max. Ref)
1.53
5
o
Max
(.273)
6.93
10
o
Max
6.76
(0.270)
3.02
(0.120)
2.54
(0.100)
Ultra-Mini DYAD™ SMT
Ultra-Mini Dyad™
(1.355)
34.4 2
(.232Max.)
5.89
(.035Ref)
0.89
(.005 Ref)
0.13
(.076 Ref)
1.93
(.060 Max. Ref)
1.53
7
o
Max
Ultra-Mini DYAD™
3
CLARE LOCATIONS
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Tel: 1-978-524-6700
Fax: 1-978-524-4900
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Tel: 1-314-770-1832
Fax: 1-314-770-1812
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Tel: 1-949-831-4622
Fax: 1-949-831-4628
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Tel: 1-905-333-9066
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European Headquarters
CP Clare nv
Bampslaan 17
B-3500 Hasselt (Belgium)
Tel: 32-11-300868
Fax: 32-11-300890
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Lead Rep
99 route de Versailles
91160 Champlan
France
Tel: 33 1 69 79 93 50
Fax: 33 1 69 79 93 59
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Clare Germany Sales
ActiveComp Electronic GmbH
Mitterstrasse 12
85077 Manching
Germany
Tel: 49 8459 3214 10
Fax: 49 8459 3214 29
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Tel: 46-862-10370
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Fax: 886-2-2523-6369
http://www.clare.com
Worldwide Sales Offices
Specification: PB-UM2-R2
©Copyright 2000, Clare, Inc.
Ultra-Mini Dyad™, Mini Dyad™, and Dyad® are
trademarks of Clare, Inc.
All rights reserved. Printed in USA.
3/7/01
Clare cannot assume responsibility for use of any circuitry other
than circuitry entirely embodied in this Clare product. No circuit
patent licenses nor indemnity are expressed or implied. Clare re-
serves the right to change the specification and circuitry, without
notice at any time. The products described in this document are not
intended for use in medical implantation or other direct life support
applications where malfunction may result in direct physical harm,
injury or death to a person.
