Product Overview
The Littelfuse 59135 is a high-temperature flange-mount reed sensor designed for non-contact switching in wet and harsh environments. It offers a choice of normally open, normally closed, or change-over contacts and is rated for operation up to 150C, capable of switching up to 265Vac/300Vdc at 10VA. The sensor's compact design allows for M3 screw or adhesive mounting and is ideal for industrial, appliance, and IoT proximity sensing applications. It functions best with the matching 57135 actuator and is hermetically sealed to IP67 standards. Key benefits include no leakage current in the 'open' state, suitability for battery-powered IoT devices, and the ability to operate through non-ferrous materials, aiding in efficient proximity, access, and energy management systems.
Product Attributes
- Brand: Littelfuse
- Model Series: 59135
- Housing Material: Thermoset Epoxy
- Housing Color: Black
- Sealing: Hermetically sealed, IP67 rated
- Certifications: UL Recognized per UL 508, CSA C22.2 No. 14, REACH compliant
- Actuator Compatibility: Functions best with 57135 actuator (sold separately)
Technical Specifications
| Specification | Details |
|---|---|
| Dimensions (Sensor) | 28.57mm x 19.05mm x 6.35mm (1.125 x 0.750 x 0.250) |
| Operating Temperature | -40C to +150C (varies by contact type) |
| Switching Voltage Max. | 265Vac / 300Vdc |
| Switching Power Max. | 10VA |
| Mounting Type | Flange Mount (M3 screw at 1 Nm torque max. or adhesive) |
| Contact Types Available | Normally Open, Normally Closed, Change Over |
| Cable Length Options | 300 mm (11.81 in) or 1000 mm (39.37 in) |
| Termination Options | Tinned leads (6.40.76mm) |
| Contact Resistance (Initial) | 0.2 max. |
| Insulation Resistance | 109 min. to 1010 min. |
| Operate Time (max.) | 1.0 ms to 3.0 ms (varies by contact type) |
| Release Time (max.) | 1.0 ms to 3.0 ms (varies by contact type) |
| Shock Rating (11ms 12 sine) | 50 G max. to 100 G max. |
| Vibration Rating (50-2000 Hz) | 30 G max. |
| Agency Approvals | E61760 (Contact Littelfuse for specific ratings) |
Applications
- Security and access control
- Factory automation
- Process equipment
- Major appliances
- Small appliances
- Proximity and limit sensing
Part Numbering System
59135-X-X-XX-X
- Series: 59135
- Switch Type: 1, 2, 3, or 4
- Sensitivity: S, T, U, or V
- Termination: A
- Cable Length: 02, 05
57135-000
- Series: 57135
- Standard Actuator
2411261532_Littelfuse-59135-010_C5346119.pdf
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