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 contact, ensuring immunity to its external environment and preventing contamination. This switch is capable of handling high voltage and power switching up to 400Vdc at 2mA, with a current carrying capacity of 6A and a maximum power rating of 100W/VA. Its high insulation resistance (1010 ohms minimum) and low contact resistance (less than 100 milliohms) make it suitable for applications such as security systems, limit switching, industrial processes, and white goods. The DRS-50 offers a sensitivity range of 42-83 Ampere-Turns (AT) and is available in various AT ranges for specific needs.
Product Attributes
- Brand: Littelfuse
- Model Series: DRS-50
- Switch Type: Axial Lead Reed Switch
- Contact Form: A (SPST-NO - Single-pole, single-throw, normally open)
- Body Material: Glass
- Lead Material: Tin-plated Ni-Fe wire
- RoHS Compliant: Yes
- Agency Approvals: E47258, E471070, DEMKO 14 ATEX 1393U
Technical Specifications
| Specification | Value |
|---|---|
| Glass Envelope Length | 50.80mm (2.000") |
| Glass Envelope Diameter | 5.25mm (.207") |
| Contact Rating (Max. Switching Voltage x Current) | 100 W/VA |
| Switching Voltage (Max. Vdc) | 400 Vdc |
| Switching Current (Max. Adc) | 3.0 Adc |
| Carrying Current (Max. Adc) | 6.0 Adc |
| Breakdown Voltage (Min. Vdc) | 600 Vdc |
| Contact Resistance (Max. Initial) | 0.100 |
| Insulation Resistance (Min.) | 1010 |
| Contact Capacitance (Typ.) | 0.6 pF |
| Operating Temperature | -40 to +125 C |
| Storage Temperature | -65 to +125 C |
| Operate Time (Max.) | 4.5 ms |
| Release Time (Max.) | 2.5 ms |
| Shock (Max.) | 100G (11ms sine wave) |
| Vibration (Max.) | 30G (50-2000 Hertz) |
| Resonant Frequency (Typ.) | 850 Hz |
| Pull-In Range (Typical) | 42-83 AT |
| Rating Sensitivity (Typical) | 60 AT |
| Agency File Numbers | E47258, E471070 |
| Packaging Option | Bulk (1000 pcs) |
2411010934_Littelfuse-DRS-50-62-78_C19518293.pdf
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