Q1: What are the main features of the 59170-1-T-00-D?
The 59170-1-T-00-D is a surface-mount, magnetically operated reed switch with an SPST normally open contact configuration. It features a molded thermoset body, gull-wing leads, and solder reflow capability for automated assembly processes. The device supports switching up to 10W with current ratings of 350mA AC and 500mA DC at up to 140V. It operates within a 15 to 20AT magnetic sensitivity range and requires no standby power. Its hermetically sealed contacts provide long-term reliability, even in dusty or contaminated environments where optical sensors may fail. The switch is also RoHS compliant and certified for hazardous locations, including ATEX and North American Class I Division 2 applications.
Q2: What applications is it commonly used for?
This reed switch is commonly used in proximity sensing, door and window position detection, industrial automation, security systems, appliance controls, and smart equipment monitoring. Because it can detect magnetic fields through non-ferrous materials such as plastic, wood, and aluminum, it is suitable for sealed or enclosed designs where contactless switching is preferred. Its rugged construction also makes it effective in harsh industrial and hazardous environments.
Q3: Are there alternative manufacturers or part numbers?
Yes. Similar magnetic reed switches are available from manufacturers such as Standex Electronics, Coto Technology, Comus International, and Hamlin/Littelfuse equivalents. Alternative parts may vary in operate sensitivity, package style, switching capacity, and mounting type, so designers should carefully compare specifications before selecting a replacement.
Q4: Is technical support available for this part?
Yes. Littelfuse provides technical documentation including datasheets, application information, and product certifications for the 59170-1-T-00-D. Suppliers such as Nantian Electronics also offer technical assistance, datasheet downloads, product consultation, and support for component selection and integration into customer applications.
