59140 Series - Miniature Flange Mount Reed Sensor
DataSheet:Littelfuse Reed Sensors 59140 datasheet
A miniature flange mount reed sensor occupying only 3.22cm2 (0.500in2) board space with a choice of normally open, normally open high-voltage, normally closed or changeover contacts. Its case design enables screw or adhesive mounting. Wires exit from top right-hand side. Also available with left-hand exit (59141 series). Capable of switching up to 265Vac/300Vdc at 10VA. Available with a range of sensitivity and cable length options. Ideally suited for position and limit sensing, security, window and door alarm systems and linear actuator applications. Functions best with the 57140 or 57141 actuator.
Note: The 57140 and 57141 actuators are sold separately.
Features:
- Magnetically-operated proximity sensor
- Operates through non-ferrous materials such as wood, plastic or aluminum
- Compact size requires only 3.2cm2 board space
- Screw-down or adhesive mounting
- Customer-defined sensitivity
- Choice of cable length and connector
Benefits:
- Well suited for usage in high-moisture and contaminated environments
- Reed contacts last for millions of operating cycles under micro-controller voltage and current logic-level loads
- Simple installation and adjustment
Applications:
- Position and limit switching
- Security
- Linear actuators
- Door switch
Ordering Information
| Catalog # | Switching Power (W) | Switching Voltage (V DC) | Switching Current (A DC) | Switching Voltage (V AC) | Switching Current (A AC) | Breakdown Voltage (V DC) | Max Contact Resistance (Ω) | Magnetic Sensitivity (AT) | Nominal Activate Distance (mm) | Switch Type |
|---|---|---|---|---|---|---|---|---|---|---|
| 59140-1-S | 10 | 200 | 0.5 | 140 | 0.35 | 250 | 0.2 | 12 to 18 | 10.4 | A:SPST-NO |
| 59140-1-T | 10 | 200 | 0.5 | 140 | 0.35 | 250 | 0.2 | 17 to 23 | 8.4 | A:SPST-NO |
| 59140-1-U | 10 | 200 | 0.5 | 140 | 0.35 | 250 | 0.2 | 22 to 28 | 7.2 | A:SPST-NO |
| 59140-1-V | 10 | 200 | 0.5 | 140 | 0.35 | 250 | 0.2 | 27 to 33 | 6.3 | A:SPST-NO |
| 59140-2-T | 10 | 300 | 0.4 | 265 | 0.3 | 400 | 0.2 | 17 to 23 | 8.4 | A:SPST-NO |
| 59140-2-U | 10 | 300 | 0.4 | 265 | 0.3 | 400 | 0.2 | 22 to 28 | 7.2 | A:SPST-NO |
| 59140-2-V | 10 | 300 | 0.4 | 265 | 0.3 | 400 | 0.2 | 27 to 33 | 6.3 | A:SPST-NO |
| 59140-3-S | 5 | 175 | 0.25 | 120 | 0.18 | 200 | 0.2 | 15 to 20 | 11.6 | C: SPDT-CO |
| 59140-3-T | 5 | 175 | 0.25 | 120 | 0.18 | 200 | 0.2 | 20 to 25 | 10.6 | C: SPDT-CO |
| 59140-3-U | 5 | 175 | 0.25 | 120 | 0.18 | 200 | 0.2 | 25 to 30 | 10 | C: SPDT-CO |
| 59140-4-S | 5 | 175 | 0.25 | 120 | 0.18 | 200 | 0.2 | 15 to 20 | 11.6 | B:SPST-NC |
| 59140-4-T | 5 | 175 | 0.25 | 120 | 0.18 | 200 | 0.2 | 20 to 25 | 10.6 | B:SPST-NC |
| 59140-4-U | 5 | 175 | 0.25 | 120 | 0.18 | 200 | 0.2 | 25 to 30 | 10 | B:SPST-NC |
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