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Specifications
Mfr. Part #:
DRS-50-77-83
Key Attributes
Model Number:
DRS-50-77-83
Product Description
Product Overview
The Littelfuse DRS-50 is a standard, normally open, high-power reed switch designed for demanding applications. With a hermetically sealed glass envelope and robust construction, it offers reliable switching of high voltages and power up to 400Vdc and 100W/VA, respectively. Its high insulation resistance and low contact resistance ensure consistent performance. The DRS-50 is suitable for security, limit switching, industrial applications, and white goods.
Product Attributes
- Brand: Littelfuse
- Model Series: DRS-50
- Switch Type: Axial Lead Reed Switches
- Contact Form: A (SPST-NO - Single-pole, single-throw, normally open)
- Body Material: Glass
- Leads Material: Tin-plated Ni-Fe wire
- Certifications: E47258, E471070, DEMKO 14 ATEX 1393U
- RoHS Compliant: Yes
Technical Specifications
| Specification | Value | Unit | Notes |
|---|---|---|---|
| Glass Envelope Length | 50.80 | mm (2.000") | Max. |
| Glass Envelope Diameter | 5.25 | mm (.207") | Max. |
| Switching Voltage | 400 | Vdc | Max. |
| Switching Current | 2 | mA | Max. |
| Carry Current | 6.0 | Adc | Max. |
| Power Rating | 100 | W/VA | Max. |
| Insulation Resistance | 1010 | Minimum | |
| Contact Resistance (Initial) | < 0.100 | Max. | |
| Breakdown Voltage | 600 | Vdc | Minimum |
| Operating Temperature | -40 to +125 | C | |
| Storage Temperature | -65 to +125 | C | |
| Operate Time | 4.5 | ms | Max. |
| Release Time | 2.5 | ms | Max. |
| Shock Rating | 100 | G | Max. (11ms 1/2 sine wave) |
| Vibration Rating | 30 | G | Max. (50-2000 Hertz) |
| Ampere-Turns Range (Standard) | 42-83 | AT | |
| Rating Sensitivity | 60 | Ampere Turns | |
| Contact Capacitance | 0.6 | pF | Typical |
| Packaging Option (Bulk) | 1000 | Quantity |
2411010929_Littelfuse-DRS-50-77-83_C19473671.pdf
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