(.090)MAX
19,30±0.25
(.760±.010)
17,52±0.25
(.690±.010)
(.004)MIN
0,10
(.600)MAX
15,24
(.039±.004)TYP (.092)TYP
(.630)
(.112)MAX
2,84
1,00±0.10 16,00 2,34
(.051)TYP
1,30
RECOMMENDED LAND PATTERN
Ø2,28
• Surface mounting normally open switch
• Miniature size with 15.24mm x 2.28mm
(0.600” x 0.090”) glass envelope
• Capable of switching 200Vdc or 0.5A
at up to 10W
• 1010 Ohms insulation resistance
• Available sensitivity 12-38 AT
• Bulk or tape and reel packaging. See sheet 2
Benefits Applications
www.hamlin.com
Contact Rating (1) Power Watts - max 10
Voltage Switching Vdc - max. 200
Breakdown Vdc - min. 250
Current Switching A - max. 0.5
Carry A - max. 1.2
Resistance Contact, Initial Ohms - max. 0.10
Insulation Ohms - min. 1010
Temperature Operating °C -40 to +125
Storage (2) °C -65 to +125
Capacitance Contact pF - typ. 0.2
Vibration 50-2000 Hz. G - max. 30
ELECTRICAL RATINGS Contact Form A - Normally Open
SWITCH DIMENSIONS (in) mm
SWITCH TYPE MDSM-4
•
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
OPERATING CHARACTERISTICS
Features
• Position sensing
• Level sensing
• Security
• Telecoms
• Office Equipment
File E47258 MDSM-4 REED SWITCH
Issue:1 19/11/04 DCR:B2737
Time Operate (3) ms - max. 0.6
Release (3) ms - max. 0.2
Shock 11ms ½ sine G - max. 100
Resonant Frequency kHz -typ. 3.9
MAGNETIC CHARACTERISTICS
Pull-In Ranges Available Switch AT before modification Ampere Turns (AT) 12-23, 17-28, 22-33 and 27-38
Rating Sensitivity (4) Ampere Turns (AT) 20
Test Coil L4989
Hamlin USA Tel: +1 920 648 3000 Fax: +1 920 648 3001 Email: sales.us@hamlin.com
Hamlin UK Tel: +44 (0) 1379 649700 Fax: +44 (0) 1379 649702 Email: sales.uk@hamlin.com
Hamlin Germany Tel: +49 (0) 6181 953660 Fax: +49 (0) 6181 9536666 Email: sales.de@hamlin.com
Hamectrol France Tel: +33 (0) 1 4687 Fax: +33 (0) 1 4686 6798 Email: sales.fr@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
Product performance may be affected by the application that the part is used for.
Upon request Hamlin will assist purchasers by providing information specific to a particular application.
Hamlin disclaims all liability whatsoever for any purchaser’s reliance upon the information
contained in this data sheet without further consultation with Hamlin’s authorised representatives.
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.
Sheet 1 of 2 Sheets
®
120° TYP.
1,9±0.4 TYP.
(.075±.016)
Ø21,0±0.4
Ø13,0±0.2
(.512±.008)
(.827±.016)
4,00
2,00
(.079)
(.157)
Ø1,50
-0
(.059 )
(.067 )
Ø1,70
+.004
+0,10
-0
-.002
+.006
-0,05
+0,15
(.240)
6,10
Ø2,00
1,17
(.046)
(.075)
1,90
7.5°
2,82
(.111)
3.0°
(.240)
6,10
(.084)
2,13
(.315)
8,00
(.069)
1,75
(.559)
14,20
(.079)
28,40
(1.118)
(.059 )
Ø1,50
+.004
+0,10
-0
-0
(1.276 )
MEASURED AT HUB
+.008
+0.2
(32,4 )
-0
-0
38,4 MAX.
(1.512)
(12.992 )
330,00
(3.937±.020)
100,0±0,50 +0,25
-0,76
+.010
-.030
2. ALL POCKET DIMENSIONS ARE ±(.004") 0,10mm
3. ALL DIMENSIONS ARE TO INSIDE OF POCKET
1. ALL TAPE & SPROCKET HOLE DIMENSIONS
ARE PER FIA-481 UNLESS NOTED
(.016)
0,41
32,00
(1.260)
7.5°
(.670)
17,02
(.830)
21,08
www.hamlin.com
Issue:1 19/11/04 DCR:B2737
Hamlin USA Tel: +1 920 648 3000 Fax: +1 920 648 3001 Email: sales.us@hamlin.com
Hamlin UK Tel: +44 (0) 1379 649700 Fax: +44 (0) 1379 649702 Email: sales.uk@hamlin.com
Hamlin Germany Tel: +49 (0) 6142 923920 Fax: +49 (0) 6142 923921 Email: sales.de@hamlin.com
Hamectrol France Tel: +33 (0) 1 6047 3000 Fax: +33 (0) 1 6015 9136 Email: sales.fr@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
Product performance may be affected by the application that the part is used for.
Upon request Hamlin will assist purchasers by providing information specific to a particular application.
Hamlin disclaims all liability whatsoever for any purchaser’s reliance upon the information
contained in this data sheet without further consultation with Hamlin’s authorised representatives.
TAPE DIMENSIONS (in) mm
REEL DIMENSIONS (in) mm
File E47258 MDSM-4 REED SWITCH
Packaging: - Bulk - 100 per Box or Tape and Reel - 3,000 per Reel
Sheet 2 of 2 Sheets
®
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Hamlin:
MDSM-4B 17-38 MDSM-4B 22-28 MDSM-4B 17-28 MDSM-4B 27-38 MDSM-4B 32-38 MDSM-4B 22-33 MDSM-4B
12-28 MDSM-4B 12-38 MDSM-4R 17-28 MDSM-4R 22-33 MDSM-4R 27-33 MDSM-4R 22-28 MDSM-4R 12-28
MDSM-4R 12-23 MDSM-4R 12-38 MDSM-4R 22-38 MDSM-4R 17-38 MDSM-4R 27-38 MDSM-4R 17-23 MDSM-4B
12-18 MDSM-4B 17-23 MDSM-4B 22-38 MDSM-4B 27-33 MDSM-4R 32-38
Littelfuse:
MDSM-4B 12-23 MDSM-4B-22-38 MDSM-4R-12-28 MDSM-4B-12-38 MDSM-4B-32-38 MDSM-4B-22-28 MDSM-
4R-32-38 MDSM-4R-17-28 MDSM-4B-17-23 MDSM-4R-22-33 MDSM-4B-12-28 MDSM-4R-17-38 MDSM-4R-12-38
MDSM-4B-27-33 MDSM-4R-17-23 MDSM-4R-22-28 MDSM-4R-12-23 MDSM-4R-22-38 MDSM-4B-27-38 MDSM-
4B-12-18 MDSM-4B-22-33 MDSM-4B-17-38 MDSM-4B-17-28 MDSM-4R-27-33 MDSM-4R-27-38 MDSM-4B-12-23
