{"id":11169,"date":"2026-09-14T23:14:10","date_gmt":"2026-09-15T06:14:10","guid":{"rendered":"https:\/\/sunflaser.com\/?p=11169"},"modified":"2026-09-14T23:14:11","modified_gmt":"2026-09-15T06:14:11","slug":"sfx50a-vs-sfx50b-selection-guide-for-same-range-miniature-laser-ranging-modules","status":"publish","type":"post","link":"https:\/\/sunflaser.com\/fr\/sfx50a-vs-sfx50b-selection-guide-for-same-range-miniature-laser-ranging-modules\/","title":{"rendered":"SFX50A vs SFX50B: Selection Guide for Same\u2011Range Miniature Laser Ranging Modules"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Pour commencer,<\/strong> among the SunFlaser SFX series 905nm pulsed TOF miniature laser ranging modules, the SFX50A and SFX50B both serve as 50m\u2011class short\u2011range products. Both employ the DTOF ranging principle and feature small size and high reliability. <strong>Cependant,<\/strong> the two products differentiate their designs in power supply system, structural form, and functional configuration, corresponding to integration needs in different fields. <strong>Par cons\u00e9quent,<\/strong> this article compares them from three dimensions \u2013 core parameters, functional characteristics, and applicable scenarios \u2013 for selection reference.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>I. Core Positioning Differences<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Avant toute chose,<\/strong> the two products have different design starting points and correspond to completely different integration scenarios. <strong>In other words,<\/strong> there is no distinction of superior or inferior performance; they merely adapt to different engineering constraints.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFX50A:<\/strong> Ultra\u2011miniature low\u2011power positioning, aimed at embedded and small mobile device scenarios. <strong>Plus pr\u00e9cis\u00e9ment,<\/strong> it minimizes volume and power consumption as much as possible, making it suitable for terminal devices with highly constrained space and power supply.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFX50B:<\/strong> Industrial\u2011grade wide\u2011voltage positioning, aimed at industrial site monitoring and medium\u2011sized mobile device scenarios. <strong>De plus,<\/strong> it enhances environmental adaptability and installation\/commissioning convenience, adapting to the engineering standards and wiring requirements of industrial scenarios.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>II. Core Parameter and Functional Differences<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Power Supply and Consumption: Low\u2011Voltage Micro\u2011Power vs. Wide\u2011Voltage Industrial\u2011Grade<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The SFX50A uses a 3.3\u20135V low\u2011voltage supply with an average power consumption of only 0.2W. <strong>Par cons\u00e9quent,<\/strong> it suits battery\u2011powered small mobile devices and offers clear advantages in power\u2011sensitive scenarios.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The SFX50B uses a 9\u201336V wide\u2011range DC supply, allowing direct connection to industrial site power systems. <strong>Par cons\u00e9quent,<\/strong> it withstands power supply fluctuations and adapts to diverse power conditions in industrial sites.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Structure and Installation: Micro Embedded vs. Industrial Terminal Wiring<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The SFX50A has overall dimensions of only 18.7\u00d711.8\u00d713.3mm and weighs 1.3g. <strong>Thus,<\/strong> it serves as an ultra\u2011miniature ranging module, supplied with a standard 4\u2011pin 1.0mm connector and 10cm short wires, suitable for embedded installation inside equipment with extremely limited space.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The SFX50B measures 38\u00d720\u00d730mm and weighs 15\u00b12g, with higher structural strength. <strong>Par ailleurs,<\/strong> it comes standard with a 5\u2011pin 1.25mm industrial connector and 50cm tinned loose wires, adapting to standard wiring and installation methods for industrial equipment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Optics and Ranging Performance: Ultra\u2011Short Blind Zone vs. Strong Ambient Light Resistance + Coaxial Aiming Light<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Range and blind zone:<\/strong> The SFX50A has a ranging blind zone as low as 0.05m, offering stronger close\u2011range edge detection capability, with a 50m range at 90% reflectivity. <strong>En revanche,<\/strong> the SFX50B achieves a range of up to 45m under 100KLux ambient light, with better ambient light resistance, suitable for outdoor strong\u2011light scenarios.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Repeatability:<\/strong> The SFX50A has a repeatability of \u00b130mm and accuracy of \u00b15cm within 5m. <strong>Par ailleurs,<\/strong> the SFX50B has a repeatability of \u00b15cm and higher measurement accuracy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Measurement frequency:<\/strong> The SFX50A defaults to 500Hz. <strong>De plus,<\/strong> the SFX50B defaults to 1kHz and supports adjustable 20Hz\u201310kHz, suitable for control scenarios requiring higher response speeds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Coaxial aiming light:<\/strong> The SFX50A has no aiming light configuration. <strong>By contrast,<\/strong> the SFX50B has a built\u2011in 650nm visible red aiming light path, which can be independently switched via serial port. <strong>During installation and commissioning,<\/strong> it visually indicates the optical path position for quick optical axis alignment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. Interface and Configuration: Dual\u2011Interface Flexibility vs. Industrial\u2011Grade Standard Interface<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The SFX50A supports both UART TTL and IIC communication interfaces, adapting to different types of small main control units with higher integration flexibility.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Similarly,<\/strong> the SFX50B uses a standard UART interface with a complete industrial\u2011grade command set, supporting baud rate modification, frequency configuration, and ranging start\/stop functions, adapting to the standard communication logic of industrial control systems.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>III. Core Parameter Comparison Table<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>We take the following parameters from the corresponding model product specifications and note the test conditions. Actual performance may vary depending on target reflection characteristics, ambient temperature, and lighting conditions.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Param\u00e8tres<\/th><th class=\"has-text-align-left\" data-align=\"left\">SFX50A<\/th><th class=\"has-text-align-left\" data-align=\"left\">SFX50B<\/th><\/tr><\/thead><tbody><tr><td>Effective range<\/td><td>0.05\u201350m (90% reflectivity); 0.05\u201320m (10% reflectivity)<\/td><td>0.05\u201350m (90% reflectivity); 0.05\u201320m (10% reflectivity)<\/td><\/tr><tr><td>Ranging blind zone<\/td><td>0.05m<\/td><td>0.05m<\/td><\/tr><tr><td>Repeatability<\/td><td>\u00b130mm<\/td><td>\u00b15cm<\/td><\/tr><tr><td>Measurement accuracy<\/td><td>\u00b15cm (&lt;5m); 1% (\u22655m)<\/td><td>\u00b15cm (&lt;5m); 1% (\u22655m)<\/td><\/tr><tr><td>Measurement frequency<\/td><td>Default 500Hz<\/td><td>Default 1kHz, adjustable 20Hz\u201310kHz<\/td><\/tr><tr><td>Main laser<\/td><td>905nm, Class 1<\/td><td>905nm, Class 1<\/td><\/tr><tr><td>Aiming light<\/td><td>None<\/td><td>650nm red light, Class 2, independently switchable<\/td><\/tr><tr><td>Champ de vision<\/td><td>1.9\u00b0<\/td><td>Approx. 4mrad<\/td><\/tr><tr><td>Ambient light resistance<\/td><td>10m @ 60KLux<\/td><td>45m @ 100KLux<\/td><\/tr><tr><td>Operating voltage<\/td><td>3.3\u20135VDC<\/td><td>9\u201336VDC<\/td><\/tr><tr><td>Average power consumption<\/td><td>0.2W (at 5V)<\/td><td>0.8W (at 24V)<\/td><\/tr><tr><td>Interface de communication<\/td><td>UART TTL + IIC<\/td><td>UART<\/td><\/tr><tr><td>Dimensions<\/td><td>18.7\u00d711.8\u00d713.3mm<\/td><td>38\u00d720\u00d730mm<\/td><\/tr><tr><td>Poids<\/td><td>1.3g<\/td><td>15\u00b12g<\/td><\/tr><tr><td>Electrical connection<\/td><td>4\u2011pin 1.0mm connector, 10cm loose wires<\/td><td>5\u2011pin 1.25mm connector, 50cm loose wires<\/td><\/tr><tr><td>Temp\u00e9rature de fonctionnement<\/td><td>De -20\u00b0C \u00e0 +60\u00b0C<\/td><td>-20\u00b0C to +60\u00b0C (aiming light off)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>IV. Scenario Selection Recommendations<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>We recommend the SFX50A for the following scenarios:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Altitude hold for micro UAVs and obstacle avoidance for small UAVs, with strict requirements on weight and power consumption.<\/li>\n\n\n\n<li>Obstacle avoidance for small AGVs and service robots, where internal installation space is limited.<\/li>\n\n\n\n<li>Embedded small monitoring devices and micro sensor modules requiring an IIC communication interface.<\/li>\n\n\n\n<li>Battery\u2011powered terminals with high power sensitivity, requiring extremely low standby and operating power consumption.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>We recommend the SFX50B for the following scenarios:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Positioning for industrial overhead cranes and lifting equipment, and distance control for carriage coupling.<\/li>\n\n\n\n<li>Industrial security and perimeter monitoring, deployed in outdoor strong\u2011light environments.<\/li>\n\n\n\n<li>Inspection robots and medium\u2011sized mobile devices requiring wide\u2011voltage power supply and high\u2011frequency ranging.<\/li>\n\n\n\n<li>High requirements for on\u2011site installation and commissioning convenience, requiring a coaxial aiming light to assist optical axis alignment.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Conclusion<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>En conclusion,<\/strong> both products represent mature, mass\u2011produced miniature ranging solutions from SunFlaser, corresponding to different integration requirements and scenario positioning. <strong>Par cons\u00e9quent,<\/strong> you can comprehensively determine actual selection based on equipment power supply conditions, installation space, functional requirements, and target scenarios.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Par ailleurs,<\/strong> all SunFlaser ranging modules support custom form factors and output protocol customization, and we can cooperate with customers to complete targeted adaptation.<\/p>","protected":false},"excerpt":{"rendered":"<p>To begin with, among the SunFlaser SFX series 905nm pulsed TOF miniature laser ranging modules, the SFX50A and SFX50B both serve as 50m\u2011class short\u2011range products. Both employ the DTOF ranging principle and feature small size and high reliability. However, the two products differentiate their designs in power supply system, structural form, and functional configuration, corresponding [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11170,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[939,944,941,877,942,940,943],"class_list":["post-11169","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sunflaser-news","tag-905nmminiaturelaserranging","tag-industrialcranepositioning","tag-industrialwidevoltage","tag-lowpower","tag-sfx50a","tag-sfx50b","tag-uavobstacleavoidance"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.8 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>SFX50A vs SFX50B: Selection Guide for Same\u2011Range Miniature Laser Ranging Modules - SunFlaser Tech<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sunflaser.com\/fr\/sfx50a-vs-sfx50b-selection-guide-for-same-range-miniature-laser-ranging-modules\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SFX50A vs SFX50B: Selection Guide for Same\u2011Range Miniature Laser Ranging Modules\" \/>\n<meta property=\"og:description\" content=\"To begin with, among the SunFlaser SFX series 905nm pulsed TOF miniature laser ranging modules, the SFX50A and SFX50B both serve as 50m\u2011class short\u2011range products. 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Both employ the DTOF ranging principle and feature small size and high reliability. 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