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Specifications
Mfr. Part #:
DRS-50-42-83
Key Attributes
Model Number:
DRS-50-42-83
Product Description
Product Overview
The Littelfuse DRS-50 is a standard, normally open (Form A) high-power reed switch designed for demanding applications. It features a hermetically sealed glass envelope, ensuring reliable operation unaffected by its environment. This switch is capable of high voltage and power switching, handling up to 400Vdc at 2mA, with a carry current of 6A and a switching capacity of 100W/VA. Key benefits include its ability to switch European mains voltage and requiring zero operating power for contact closure. The DRS-50 is suitable for security systems, limit switching, industrial applications, and white goods.
Product Attributes
- Brand: Littelfuse
- Product Line: DRS-50 High Power Reed Switch
- Contact Form: A (SPST-NO - Single-pole, single-throw, normally open)
- Body Material: Glass
- Lead Material: Tin-plated Ni-Fe wire
- Approvals: 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. |
| Contact Rating (Switching) | 100 | W/VA | Max. Product of switching voltage and current should not exceed wattage rating. |
| Switching Voltage | 400 | Vdc | Max. |
| Switching Current | 2 | mA | Max. |
| Carry Current | 6.0 | Adc | Max. |
| Breakdown Voltage | 600 | Vdc | Min. Per MIL-STD-202, Method 301. |
| Contact Resistance (Initial) | < 0.100 | Max. | |
| Insulation Resistance | 1010 | Min. | |
| Contact Capacitance | 0.6 | pF | Typical. |
| Operating Temperature | -40 to +125 | C | |
| Storage Temperature | -65 to +125 | C | Long time exposure at elevated temperature may degrade solderability of the leads. |
| Operate Time | 4.5 | ms | Max. Includes bounce. Per EIA/NARM RS-421-A. |
| Release Time | 2.5 | ms | Max. Per EIA/NARM RS-421-A. |
| Shock Rating | 100 | G | Max. 11ms 1/2 sine wave. Per EIA/NARM RS-421-A and MIL-STD-202. |
| Vibration Rating | 30 | G | Max. 50-2000 Hertz. Per EIA/NARM RS-421-A and MIL-STD-202. |
| Resonant Frequency | 850 | Hz | Typical. |
| Pull-In Range | 42-83 | AT | Standard range. Narrower ranges available. |
| Rating Sensitivity | 60 | AT | Value at which contact ratings and operating characteristics are determined. |
| Packaging Option | Bulk | Quantity: 1000 |
2411010936_Littelfuse-DRS-50-42-83_C19612321.pdf
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