LFM (with Smm T1-3/4 LED) IP 67 Models Datasheet

Category: Electronics, Optoelectronics, Schurter Inc

Overview

The datasheet provides technical details for the LFM model IP 67-rated signal indicators equipped with Smm T1-3/4 LEDs. Designed for front panel mounting, these indicators are constructed to meet demanding environmental conditions, offering a degree of protection classified as IP 67, which implies that they are dust-tight and can withstand temporary immersion in water.

Physical Dimensions and Construction

The datasheet outlines the physical dimensions of the LED indicators, detailing the requirements for front panel drilling, the size of internal and external reflectors, as well as specifying dimensions with and without built-in resistors. Two distinct models are provided: one with a maximum diameter of 6mm and the other one with a maximum diameter of 5.6mm for the indicator body. Solder terminals and nuts are also dimensioned, suggesting the product offers flexibility for integration into various panel cuts and designs.

Materials

The construction materials are specified, emphasizing durability and conductivity: the body is made from brass and is chromium-plated, solder terminals are made from copper and are tinned for better solderability, and nuts are crafted from brass and finished with a nickel plating for enhanced resilience. Sealing is achieved using nitrile rubber, which contributes to the unit’s ability to maintain its IP 67 rating.

Electrical Data

Electrical characteristics are partially detailed. It mentions elements such as current input for models with built-in resistors and points to an extended reference for technical data regarding the LED at a separate place in the datasheet, on page 91.

Solderability and Heat Resistance

Solderability information and heat resistance are provided concerning international standards. The indicators can sustain a soldering temperature of up to 235°C for a maximum of 2 seconds, adhering to the IEC 68 2-20 Test Ta Method 1, and a maximum heat resistance for soldering process of up to 350°C for no more than 5 seconds, meeting IEC 68 2-20 Test Tb Method 1B standards.

Environmental Tolerances

Environmental tolerances of the unit are robust, suitable for both cold and hot climates, with an operational ambient temperature range from -25°C to 55°C and a storage temperature range even wider, from -55°C to 100°C.

Contact Information

Lastly, the company’s contact information, including phone number, fax, e-mail, and website, are listed to facilitate further inquiries and customer service.