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
(.001)MIN
0,025
(.800±.010)
20,32±0.25
(1.000±.010)
25,40±0.25
(.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
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
Hamlin disclaims allsheet without further consultation with Hamlin’s authorised representatives.
Sheet 1 of 2 Sheets
contained in this data
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
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
Hamlin disclaims allsheet without further consultation with Hamlin’s authorised representatives.
Sheet 2 of 2 Sheets
contained in this data
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
