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Specifications
Mfr. Part #:
DRS-50-52-63
Key Attributes
Model Number:
DRS-50-52-63
Product Description
Product Overview
The Littelfuse DRS-50 is a high-power, normally open reed switch designed for demanding applications. Featuring a robust hermetically sealed glass envelope, it offers reliable switching of high voltages and power up to 400Vdc at 2mA, with a carry current of 6A and a switching capacity of 100W/VA. Its high insulation resistance and low contact resistance ensure consistent performance. The DRS-50 is suitable for security systems, limit switching, industrial applications, and white goods, capable of switching European mains voltage with zero operating power required for contact closure.
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
- Leads Material: Tin-plated Ni-Fe wire
- Certifications: E47258, E471070, DEMKO 14 ATEX 1393U
- Environmental Compliance: RoHS
- Switch Type: Axial Lead Reed Switches
Technical Specifications
| Specification | Value | Notes |
|---|---|---|
| Glass Envelope Length | 50.80mm (2.000") | MAX. |
| Glass Envelope Diameter | 5.25mm (.207") | MAX. |
| Contact Rating (Switching) | 100 W/VA | Product of switching voltage and current should not exceed wattage rating. |
| Switching Voltage (Max) | 400 Vdc | |
| Switching Current (Max) | 2 mA | |
| Carry Current (Max) | 6.0 Adc / 3.0 Aac | |
| Breakdown Voltage (Min) | 600 Vdc | Per MIL-STD-202, Method 301. |
| Contact Resistance (Initial) (Max) | 0.100 | |
| Insulation Resistance (Min) | 1010 | |
| Contact Capacitance (Typical) | 0.6 pF | |
| 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 (Max) | 4.5 ms | Includes bounce. Per EIA/NARM RS-421-A, diode suppressed coil (Coil IV). |
| Release Time (Max) | 2.5 ms | Per EIA/NARM RS-421-A, diode suppressed coil (Coil IV). |
| Shock (Max) | 100 G | 11ms sine wave. Per EIA/NARM RS-421-A and MIL-STD-202. |
| Vibration (Max) | 30 G | 50-2000 Hertz. Per EIA/NARM RS-421-A and MIL-STD-202. |
| Resonant Frequency (Typical) | 850 Hz | |
| Pull-In Range (Ampere-Turns) | 42-83 AT | Rating Sensitivity: 60 AT. |
| Agency Approvals (Ampere-Turns Range) | 42-83 AT | |
| Packaging Option | Bulk | Quantity: 1000 |
| Model Series Example | DRS-50-42-83 | Represents a 42-83 AT range product. |
2411010926_Littelfuse-DRS-50-52-63_C19437865.pdf
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