Product Overview
The Littelfuse DRS-50 is a standard, normally open, high-power reed switch designed for demanding applications. It features a 50.80mm long glass envelope and is capable of switching high voltages and power up to 400Vdc at 2mA, with a carry current of 6A and a switching capability of up to 100W/VA. The switch offers high insulation resistance (1010 ohms minimum) and low contact resistance (less than 100 milli-ohms). Its hermetically sealed design ensures reliability by protecting contacts from the external environment. The DRS-50 is suitable for applications requiring switching of European mains voltage and operates with zero power for contact closure.
Product Attributes
- Brand: Littelfuse
- Product Type: 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
- RoHS Compliant: Yes
Technical Specifications
| Specification | Value |
|---|---|
| Model | DRS-50 |
| Glass Envelope Length | 50.80mm (2.000") |
| Glass Envelope Diameter | 5.25mm (.207") |
| Electrical Ratings | |
| Contact Rating (max.) | 100 W/VA |
| Switching Voltage (max.) | 400 Vdc |
| Switching Current (max.) | 2 mA (at 400Vdc) / 3.0 Adc / 2.1 Aac |
| Carry Current (max.) | 6.0 Adc |
| Breakdown Voltage (min.) | 600 Vdc |
| Contact Resistance (initial, max.) | 100 m (0.100 ) |
| Insulation Resistance (min.) | 1010 |
| Contact Capacitance (typ.) | 0.6 pF |
| Operating Characteristics | |
| Operate Time (max.) | 4.5 ms |
| Release Time (max.) | 2.5 ms |
| Shock (max.) | 100 G (11ms 1/2 sine wave) |
| Vibration (max.) | 30 G (50-2000 Hertz) |
| Resonant Frequency (typ.) | 850 Hz |
| Magnetic Characteristics | |
| Pull-In Range | 42-83 AT |
| Rating Sensitivity | 60 AT |
| Temperature Ratings | |
| Operating Temperature | -40 to +125 C |
| Storage Temperature | -65 to +125 C |
| Dimensions | |
| Overall Length (max.) | 82.55 mm (3.250") |
| Glass Length (max.) | 50.80 mm (2.000") |
| Glass Diameter (max.) | 5.25 mm (.207") |
| Lead Diameter (typ.) | 0.53 mm (.021") |
| Packaging Options | |
| Bulk | 1000 pcs |
Applications: Security, Limit switching, Industrial applications, White Goods.
Note: Specifications are subject to change without notice.
2411010911_Littelfuse-DRS-50-47-63_C19349752.pdf
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