www.hamlin.com
®
File E47258
MDSM-DT REED SWITCH
Features
Surface mounting changeover switch
Miniature size with 14.73mm x 2.54mm
(0.580” x 0.100”) glass envelope
Capable of switching 175Vdc or 0.25A
•
at up to 5W
10
9
Ohms insulation resistance
•
Available sensitivity 15-30 AT
•
Bulk or tape and reel packaging. See sheet 2
•
•
•
•
Benefits
Hermetically sealed switch contacts
are not affected by and have no effect
on their external environment
Low, stable contact resistance
•
Very small space requirements
•
Zero operating power required for
•
contact closure
Fit and forget durability
•
•
•
•
•
•
Applications
Position sensing
Level sensing
Telecoms
Office Equipment
Mobile Phones
SWITCH DIMENSIONS
(in) mm
(.100±.015)
2,54±0.38
N.O.LEAD
(.022)
Ø0,56
(.580)MAX
14,73
(.100)MAX
Ø2,54
COMMON
LEAD
RECOMMENDED LAND PATTERN
(.022)
Ø0,56
N.C.LEAD
C OF OVERLAP
(.420±.020)
10,67±0.51
(.020)
Ø0,51
(.760)
19,30
(.138)TYP
3,50
(.800±.010)
20,32±0.25
(1.000±.010)
25,40±0.25
(.001)MIN
0,025
(.020)
(.037) 0,51
0,94
(.113)MAX
2,87
(.063)TYP
1,60
SWITCH TYPE
ELECTRICAL RATINGS
Contact Rating (1)
Voltage
Power
Switching
Breakdown
Current
Switching
Carry
Resistance
Contact, Initial
Insulation
Capacitance
Temperature
Contact
Operating
Storage (2)
OPERATING CHARACTERISTICS
®
MDSM-DT
Contact Form C - Changeover
Watts - max
Vdc - max.
File E61760(N)
®
Vdc - min.
A - max.
A - max.
Ohms - max.
Ohms - min.
pF - typ.
°C
°C
5
175
200
0.25
1.5
0.1
10
9
1.0
-40 to +125
-65 to +125
Time
Operate (3)
Release (3)
ms - max.
ms - max.
G - max.
G - max.
0.7
1.0
50
30
Shock
Vibration
11ms ½ sine
50-2000 Hz.
Resonant Frequency
MAGNETIC CHARACTERISTICS
kHz -typ.
11
Pull-In Ranges Available
Rating Sensitivity (4)
Test Coil
Switch AT before modification
Ampere Turns (AT)
Ampere Turns (AT)
15-30, 15-20, 20-25 and 25-30
20
L4989
Notes:-
1) Contact Rating. Product of the switching voltage and current must never exceed the wattage rating. Contact Hamlin for additional load/life information.
2) Storage Temperature. Long term exposure at elevated temperature may degrade solderability of the leads.
3) Operate (including bounce) /Release Time. Tested per EIA/NARM RS421A with diode suppressed coil.
4) Rating Sensitivity. The value at which the contact ratings and operating characteristics are determined. De-rating may be required below this value.
Hamlin USA
Hamlin UK
Hamlin Germany
Hamectrol France
Tel: +1 920 648 3000 Fax: +1 920 648 3001 Email: sales.us@hamlin.com
DETAILS ON THIS DATA SHEET ARE PROVIDED FOR INFORMATION PURPOSES ONLY &
SHOULD NOT BE RELIED UPON AS BEING ACCURATE FOR ANY PARTICULAR PURPOSE
may be affected by the application that
part is used for.
Tel: +44 (0) 1379 649700 Fax: +44 (0) 1379 649702 Email: sales.uk@hamlin.com
Product performanceassist purchasers by providing information specific totheparticular application.
Upon request Hamlin will
a
Hamlin disclaims all liability whatsoever for any purchaser’s reliance upon the information
Tel: +49 (0) 6181 953660 Fax: +49 (0) 6181 9536666 Email: sales.de@hamlin.com
contained in this data sheet without further consultation with Hamlin’s authorised representatives.
Sheet 1 of 2 Sheets
Issue:2 19/11/04 DCR:B2737
Tel: +33 (0) 1 4687 Fax: +33 (0) 1 4686 6798 Email: sales.fr@hamlin.com
www.hamlin.com
®
File E47258
MDSM-DT REED SWITCH
Packaging: - Bulk - 100 per Box or Tape and Reel - 2,500 per Reel
TAPE DIMENSIONS
(in) mm
(.315)
8,00
(.079)
2,00
(.157)
4,00
+.004
-0
)
+0.10
Ø1,50
-0
(.059
(.069)
1,75
(.118)
3,00
3.0°
(.240)
6,10
(.222)
5,63
(.795)
20,20
(1.591)
40,40
(1.732)
44,00
(1.024)
26,00
(.067
-.002
)
1,70
+0,15
-0,05
+.006
(.079)
Ø2,00
(.118)
3,00
(.059
+.004
-0
)
1,50
+0,10
-0
(.240)
6,10
(.138)
3,50
3.0°
(.014)
0,36
(.106)
2,70
(.039)
1,00
(.129)
3,28
1. ALL TAPE & SPROCKET HOLE DIMENSIONS
ARE PER FIA-481 UNLESS NOTED
2. ALL POCKET DIMENSIONS ARE ±(.004") 0,10mm
3. ALL DIMENSIONS ARE TO INSIDE OF POCKET
REEL DIMENSIONS
(in) mm
(3.937±.020)
100,0±0,5
(12.992
-.030
)
330,00
+0,25
-0,76
+.010
(.075±.016)
1,9±0.4 TYP.
(1.984)
50,4 MAX.
°T
YP
.
)
16
±.0 4
27 ,0±0.
(.8 21
Ø
12
0
(1.748
+.008
)
-0
(44,4
+0.2
)
-0
MEASURED AT HUB
(.512±.008)
Ø13,0±0.2
Hamlin USA
Tel: +1 920 648 3000 Fax: +1 920 648 3001 Email: sales.us@hamlin.com
DETAILS ON THIS DATA SHEET ARE PROVIDED FOR INFORMATION PURPOSES ONLY &
SHOULD NOT BE RELIED UPON AS BEING ACCURATE FOR ANY PARTICULAR PURPOSE
may be affected by the application that
part is used for.
Hamlin UK
Tel: +44 (0) 1379 649700 Fax: +44 (0) 1379 649702 Email: sales.uk@hamlin.com
Product performanceassist purchasers by providing information specific totheparticular application.
Upon request Hamlin will
a
Hamlin disclaims all liability whatsoever for any purchaser’s reliance upon the information
Hamlin Germany
Tel: +49 (0) 6142 923920 Fax: +49 (0) 6142 923921 Email: sales.de@hamlin.com
contained in this data sheet without further consultation with Hamlin’s authorised representatives.
Sheet 2 of 2 Sheets
Issue:2 19/11/04 DCR:B2737
Hamectrol France Tel: +33 (0) 1 6047 3000 Fax: +33 (0) 1 6015 9136 Email: sales.fr@hamlin.com
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