Axial Lead Reed Switches
High Power > DRS-50
DRS-50 50.8mm High Power Reed Switch
06/25/2020
LFPCN 41367
RoꢀS
Not Replaced
Description
The DRS-50 Reed Switch is a standard, normally open switch with a 50.80mm
long x 5.25mm diameter (2.000” x .207”) glass envelope, capable of high voltage
and power switching up to 400Vdc at 2mA. Will carry 6A and switch up to
100W/VA. It has high insulation resistance of 1010 ohms minimum and contact
resistance of less than 100 milli-ohms.
Features
• Normally open switch
• Capable of switching 400Vdc or
3.0A at up to 100W
• Available sensitivity range
42-83 AT
• Minimum voltage breakdown
600Vdc
Agency Approvals
Benefits
Agency
Agency File Number
Ampere-Turns Range
• Hermetically sealed switch
contacts are not affected by and
have no effect on their external
environment
• Capable of switching European
mains voltage
• Zero operating power required for
contact closure
E47258
42-83 AT
42-83 AT
E471070
DEMKO 14 ATEX 1393U
Applications
• Security
Note: Contact Littelfuse for specific agency approval ratings.
• Industrial applications
• White Goods
• Limit switching
Dimensions
Dimensions in mm (inch)
CL OF OVERLAP
41.27
(1.625) REF.
5.25
(.207) MAX.
0.53
(.021) REF.
Switch Type
12.70
(.500) REF.
Contact Form
A (SPST-NO)
15.24
(.600) MIN.
50.80
(2.000) MAX.
82.55
Body: Glass
Leads: Tin-plated Ni-Fe wire
Materials
(3.250) MAX.
Note: SPST-NO = Single-pole, single-throw, normally open
Electrical Ratings
Contact Rating 1
W/VA - max.
100
Switching 2
Vdc - max.
Vac - max.
Vdc - min.
400
280
600
Voltage 3
Breakdown 4
Switching 2
Adc - max.
Aac - max.
Adc - max.
3.0
2.1
6.0
Current 3
Carry
Contact, Initial
Insulation
Ω - max.
Ω - min.
0.100
1010
Resistance
Capacitance
Temperature
Notes:
Contact
pF - typ.
0.6
Operating
Storage 5
°C
°C
-40 to +125
-65 to +125
1. Contact rating - Product of the switching voltage and current should never exceed the wattage rating. Contact Littelfuse for additional load/life information.
2. When switching inductive and/or capacitive loads, the effects of transient voltages and/or currents should be considered. Refer to Application Notes AN108A and AN107 for details.
3. Electrical Load Life Expectancy - Contact Littelfuse with voltage, current values along with type of load.
4. Breakdown Voltage - per MIL-STD-202, Method 301.
5. Storage Temperature - Long time exposure at elevated temperature may degrade solderability of the leads
© 2021 Littelfuse
Revised: 02/23/21
littelfuse.com
Specifications are subject to change without notice.