www.hamlin.com
MDCG-4 Features and Benefits
Features
Benefits
Applications
•
Sub-miniature normally open
•
Hermetically sealed switch
•
•
•
•
•
Reed relays
switch with 15.24mm x 2.28mm
(0.600” x 0.090”) glass envelope
Capable of switching up to
200Vdc
contacts are not effected by and
have no effect on their external
environment
Low, stable contact resistance
Low space requirement
Zero operating power required
for contact closure
Fit and forget durability
Well suited to signal switching
applications
Security
Limit switching
Telecoms
•
•
•
•
•
Office equipment
Maximum contact rating 10
Watts
•
•
1010 Ohms insulation resistance
Available sensitivity range
12-38 AT
•
•
•
Surface mount version available
DIMENSIONS (in) mm
SwitchType
MDCG-4
Contact Form
A
Underwriters Laboratories Recognised, File E47258 (see note 1)
ELECTRICAL RATINGS
Contact Rating (2)
Watt - max.
10
Voltage
Switching
Vdc - max.
Vdc - min.
200
250
Breakdown
Current
Resistance
Switching
Carry
A - max.
A - max.
0.5
1.2
Contact, Initial
Insulation
Ω - max.
Ω - min.
0.100
10
10
Capacitance
Temperature
Contact
pF - typ.
0.2
Operating
°C
°C
-40 to +125
-65 to +125
Storage (6)
OPERATING CHARACTERISTICS
Operate Time (3)
ms - max.
ms - max.
G - max.
G - max.
Hz - typ.
0.6
0.2
Release Time (3)
Shock
11ms 1⁄
50-2000 Hertz
2
sine wave
100
30
Vibration
Resonant Frequency
3900
MAGNETIC CHARACTERISTICS
Pull-In Range (4)
Ampere Turns
Ampere Turns
12-38
20
Rating Sensitivity (5)
Test Coil
L4989
Notes
1) For details on electrical specifications, contact Hamlin.
4) Pull in Range-Contact Hamlin for tolerances available within this range.
2) Contact rating-Product of the switching voltage and current should never exceed the
wattage rating.
5) Rating Sensitivity-The value at which contact ratings and operating characteristics are
determined. Derating may be required below this value.
Contact Hamlin for additional load/life information.
6) Storage Temperature-Long time exposure at elevated temperature may degrade
solderability of the leads.
3) Operate (inc. bounce) /Release Time-per EIA/NARM RS421A, diode suppressed coil.
Hamlin USA
Hamlin UK
Tel: +1 920 648 3000 • Fax: +1 920 648 3001 • Email: sales.us@hamlin.com
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
INFORMATION PROVIDED ON THIS DATA SHEET IS PROVIDED FOR INFORMATION PURPOSES ONLY AND SHOULD NOT BE RELIED UPON AS BEING ACCURATE FOR ANY
PARTICULAR PURPOSE. Product performance may be affected by the application to which the product is applied. Upon request, HAMLIN will assist purchasers by providing information
specific to any particular application. HAMLIN disclaims any and all liability whatsoever for any purchaser’s reliance upon the information contained on this data sheet without further
consultation with authorised representatives of HAMLIN.
ISSUE No: 4 DATE: 1/5/3
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