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Specifications
Mfr. Part #:
DRS-50-47-68
Key Attributes
Model Number:
DRS-50-47-68
Product Description
Product Overview
The Littelfuse DRS-50 is a standard, normally open (Form A) high-power reed switch designed for demanding applications. Featuring a hermetically sealed glass envelope, it offers reliable switching of high voltages and power up to 400Vdc and 100W/VA, respectively. The switch is capable of carrying up to 6A and boasts high insulation resistance. Its robust construction and ability to switch European mains voltage make it suitable for security, limit switching, industrial applications, and white goods.
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: Yes
Technical Specifications
| Specification | Value | Notes |
|---|---|---|
| Model | DRS-50 | |
| Glass Envelope Length | 50.80mm (2.000") | |
| Glass Envelope Diameter | 5.25mm (.207") | |
| Switching Voltage (max.) | 400Vdc | |
| Switching Current (max.) | 2mA | |
| Carry Current (max.) | 6A | |
| Power Rating (max.) | 100W/VA | |
| Insulation Resistance (min.) | 1010 | |
| Contact Resistance (max.) | 0.100 | Initial |
| Breakdown Voltage (min.) | 600Vdc | per MIL-STD-202, Method 301 |
| 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.) | 4.5ms | per EIA/NARM RS-421-A, diode suppressed coil (Coil IV) |
| Release Time (max.) | 2.5ms | per EIA/NARM RS-421-A, diode suppressed coil (Coil IV) |
| Shock Resistance (max.) | 100G | 11ms sine wave, per EIA/NARM RS-421-A and MIL-STD-202 |
| Vibration Resistance (max.) | 30G | 50-2000 Hertz, per EIA/NARM RS-421-A and MIL-STD-202 |
| Resonant Frequency (typ.) | 850Hz | |
| Ampere-Turns Range | 42-83 AT | E47258, E471070 |
| Rating Sensitivity | 60 Ampere Turns | Value at which contact ratings and operating characteristics are determined. Derating may be required below this value. |
| Contact Capacitance (typ.) | 0.6 pF | |
| Packaging Option | Bulk | Quantity: 1000 |
| Part Numbering System Example | DRS-50-42-83 | Represents DRS-50 with 42-83 AT Range |
2411010918_Littelfuse-DRS-50-47-68_C19381240.pdf
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