DRR-129 Datasheet, PDF (1/2 Pages) HAMLIN Position and Movement Sensor Solutions – Normally open switch size with 50.80mm x 5.25mm

Axial Lead Reed Switches
High Power > DRR-129
DRR-129 50.8mm Close-Differential Reed Switch
RoHS
Description
The DRR-129 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 100W. Will carry 6A and switch 3A. It has
high insulation resistance of 10¹⁰ ohms minimum and contact resistance of less
than 100 milli-ohms.
Agency Approvals
Agency
Agency File Number Ampere-Turns Range
E47258
E471070
DEMKO 14 ATEX 1393U
42-83 AT
42-83 AT
Dimensions
Dimensions in mm (inch)
12.70
(.500) REF.
41.27
(1.625) REF.
CL OF OVERLAP
15.24
(.600) MIN.
50.80
(2.000) MAX.
82.55
(3.250) MAX.
5.25
(.207) MAX.
0.53
(.021) REF.
Features
• Normally open switch
• Capable of switching 400Vdc or
3.0A at up to 100W
• Minimum voltage breakdown
600Vdc
Benefits
• Hermetically sealed switch
contacts are not affected by and
have no effect on their external
environment
• Available sensitivity range
42-83 AT
• Capable of switching European
mains voltage
• Zero operating power required for
contact closure
Applications
• Security
• Limit switching
• Industrial safety applications
Switch Type
Contact Form
A (SPST-NO)
Materials
Body: Glass
Leads: Tin-plated Ni-Fe wire
Note: SPST-NO = Single-pole, single-throw, normally open
Electrical Ratings
Contact Rating ¹
Voltage ³
Current ³
W/VA - max.
100
Switching ²
Vdc - max.
400
Vac - max.
280
Breakdown ⁴
Vdc - min.
600
Switching ²
Adc - max.
3.0
Aac - max.
2.1
Carry
Adc - max.
6.0
Resistance
Contact, Initial
Insulation
Ω - max.
Ω - min.
0.100
10¹⁰
Capacitance
Temperature
Contact
Operating
Storage ⁵
pF - typ.
°C
°C
0.6
-40 to +125
-65 to +125
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
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Specifications are subject to change without notice.
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