Axial Lead Reed Switches
High Power > DRS-50
DRS-50 50.8mm High Power Reed Switch
RoHS
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 10
10
ohms minimum and contact
resistance of less than 100 milli-ohms.
Agency Approvals
Agency
Agency File Number
Pending
Pending
Note: Contact Littelfuse for specific agency approval ratings.
• Normally open switch
• Capable of switching 400Vdc or
3.0A at up to 100W
• Minimum voltage breakdown
600Vdc
Ampere-Turns Range
42-83 AT
42-83 AT
Benefits
Dimensions
Dimensions in mm (inch)
12.70
(.500) REF
.
41.27
(1.625) REF
.
CL OF OVERLAP
5.25
(.207) MAX.
IM
Switching
2
15.24
(.600) MIN.
50.80
(2.000) MAX.
82.55
(3.250) MAX.
Electrical Ratings
Contact Rating
Voltage
3
1
EL
IN
A
• Hermetically sealed switch
contacts are not affected by and
have no effect on their external
environment
Applications
• Security
• Limit switching
0.53
(.021) REF
.
Switch Type
Contact Form
Materials
Note: SPST-NO = Single-pole, single-throw, normally open
W/VA - max.
Vdc - max.
Vac - max.
Vdc - min.
Adc - max.
Aac - max.
Adc - max.
Ω - max.
Ω - min.
pF - typ.
°C
°C
Breakdown
Switching
Carry
2
4
Current
3
PR
Resistance
Contact, Initial
Insulation
Contact
Operating
Storage
5
Capacitance
Temperature
Notes:
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
© 2017 Littelfuse
Revised: 07/17/17
Specifications are subject to change without notice.
RY
• Available sensitivity range
42-83 AT
• Capable of switching European
mains voltage
• Zero operating power required for
contact closure
• Industrial applications
• White Goods
A (SPST-NO)
Body: Glass
Leads: Tin-plated Ni-Fe wire
100
400
280
600
3.0
2.1
6.0
0.100
10
10
0.6
-40 to +125
-65 to +125
littelfuse.com
Features
Axial Lead Reed Switches
High Power > DRS-50
DRS-50 50.8mm High Power Reed Switch
Product Characteristics
Operating Characteristics
Operate Time
Release Time
Shock
2
2
1
1
4.5ms - max.
2.5ms - max.
11ms 1∕2 sine wave
50-2000 Hertz
Hz - typ.
100G - max.
Resonant Frequency
Magnetic Characteristics
Pull-In Range
3
4
Ampere Turns
Ampere Turns
Rating Sensitivity
Test Coil
Drop-Out vs. Pull-In Chart
50
IN
Max.
Min.
Notes:
1. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A,diode suppressed coil (Coil IV).
2. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202.
3. Pull-In Range - Contact Littelfuse for narrower AT ranges available.
4. Rating Sensitivity - The value at which contact ratings and operating characteristics are determined. Derating may be required below this value.
5. Custom modifications of forming and/or cutting of reed switches are available. Please contact Littelfuse.
Part Numbering System
30
IM
0
10
40
Drop-Out (L4988 Coil)
20
10
0
EL
20
30
40
50
60
70
Pull-In (L4988 Coil)
80
90
Note: Chart represents the range of Drop-Out, min to max for a given Pull-In value.
PR
Note: These AT values are the before-modification values of the bare reed switch.
Packaging
Packaging Option
Bulk
Packaging Specification
Bulk
Quantity
1000
Quantity & Packaging Code
N/A
A
Series
AT Range
42-48 AT
42-53 AT
42-83 AT
47-53 AT
47-58 AT
47-68 AT
57-63 AT
57-68 AT
62-68 AT
62-78 AT
67-73 AT
67-83 AT
77-83 AT
62-73 AT
© 2017 Littelfuse
Revised: 07/17/17
Specifications are subject to change without notice.
RY
850Hz - typ.
42-83
60
L4988
Vibration
30G - max.
DRS-50-42-83
Example:
42-83 AT product is
DRS-50-42-83
Taping Width
N/A
littelfuse.com
Suggestions & Announcements
京公网安备 11010802033920号
EEWORLD
