{"id":36948,"date":"2026-09-22T20:24:24","date_gmt":"2026-09-22T12:24:24","guid":{"rendered":"https:\/\/pxisource.com\/product\/swb-2816\/"},"modified":"2026-09-22T21:43:02","modified_gmt":"2026-09-22T13:43:02","slug":"swb-2816","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/swb-2816\/","title":{"rendered":"SWB-2816"},"content":{"rendered":"<h3>SWB-2816 8 \u00d7 46 Reed Matrix for NI SwitchBlock<\/h3>\n<p>The NI SWB-2816 is a 1-wire, 8 \u00d7 46 reed relay matrix card for NI SwitchBlock systems. It provides 368 crosspoints for routing shared instruments, sources, and DUT nodes under software control. The 8-row topology is suitable for automated test systems that need more common signal paths than a 4-row matrix while retaining high column density.<\/p>\n<p>The module supports 100 V CAT I switching, 0.25 A switching current, 0.3 A carry current, and 3 W switching power per channel. It is intended for high-density, low-power signal routing and requires an <a class=\"product-link\" href=\"https:\/\/pxisource.com\/ru\/product\/pxi-2800\/\">NI PXI-2800 SwitchBlock carrier<\/a> for operation in a PXI chassis.<\/p>\n<h3>Key Features of the SWB-2816<\/h3>\n<ul>\n<li>1-wire 8 \u00d7 46 reed relay matrix with 368 crosspoints<\/li>\n<li>0.25 A maximum switching current per channel<\/li>\n<li>0.3 A maximum carry current per channel<\/li>\n<li>100 V CAT I row\/column-to-ground rating<\/li>\n<li>3 W maximum switching power per channel and per crosspoint<\/li>\n<li>Initial DC path resistance below 1 \u03a9<\/li>\n<li>Typical bandwidth of at least 8 MHz at -3 dB with 50 \u03a9 termination<\/li>\n<li>Typical thermal EMF below 50 \u03bcV<\/li>\n<li>Eight analog-bus connections for SwitchBlock expansion<\/li>\n<li>Compatible with the NI PXI-2800 carrier and TBX-2809 terminal accessory<\/li>\n<\/ul>\n<h2>SWB-2816 Technical Specifications<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/th>\n<th>\u0421\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Topology<\/td>\n<td>1-wire 8 \u00d7 46 matrix<\/td>\n<\/tr>\n<tr>\n<td>Crosspoints<\/td>\n<td>368<\/td>\n<\/tr>\n<tr>\n<td>\u0422\u0438\u043f \u0440\u0435\u043b\u0435<\/td>\n<td>Non-latching reed relay<\/td>\n<\/tr>\n<tr>\n<td>Relay Contact Material<\/td>\n<td>Ruthenium<\/td>\n<\/tr>\n<tr>\n<td>Maximum Switching Voltage<\/td>\n<td>100 VDC \/ 70 VAC row-to-column; 100 V CAT I row\/column-to-ground<\/td>\n<\/tr>\n<tr>\n<td>Maximum Switching Current<\/td>\n<td>0.25 A per channel<\/td>\n<\/tr>\n<tr>\n<td>Maximum Carry Current<\/td>\n<td>0.3 A per channel<\/td>\n<\/tr>\n<tr>\n<td>Maximum Switching Power<\/td>\n<td>3 W per channel; 3 W per crosspoint<\/td>\n<\/tr>\n<tr>\n<td>DC Path Resistance<\/td>\n<td>Initial &lt;1 \u03a9; end-of-life \u22652 \u03a9<\/td>\n<\/tr>\n<tr>\n<td>Open-Channel Resistance<\/td>\n<td>&gt;1 \u00d7 10<sup>9<\/sup> \u03a9<\/td>\n<\/tr>\n<tr>\n<td>Thermal EMF, Typical<\/td>\n<td>&lt;50 \u03bcV<\/td>\n<\/tr>\n<tr>\n<td>Bandwidth, Typical<\/td>\n<td>\u22658 MHz at -3 dB, 50 \u03a9 termination<\/td>\n<\/tr>\n<tr>\n<td>Analog Bus<\/td>\n<td>Eight lines: AB&lt;0..7&gt;<\/td>\n<\/tr>\n<tr>\n<td>Simultaneous Drive Limit<\/td>\n<td>61 relays, subject to overall carrier limits<\/td>\n<\/tr>\n<tr>\n<td>Relay Operation \/ Release Time, Typical<\/td>\n<td>Up to 8 relays: &lt;1 ms; up to 50 relays: &lt;2 ms<\/td>\n<\/tr>\n<tr>\n<td>Power Consumption<\/td>\n<td>63 mW per energized relay<\/td>\n<\/tr>\n<tr>\n<td>Power Dissipation Limit<\/td>\n<td>3.9 W per card and carrier<\/td>\n<\/tr>\n<tr>\n<td>Operating Temperature<\/td>\n<td>\u043e\u0442 0 \u00b0C \u0434\u043e 55 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Dimensions<\/td>\n<td>11.2 cm \u00d7 1.2 cm \u00d7 17.1 cm<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>320 g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The 8 MHz bandwidth figure is a typical specification measured with 50 \u03a9 termination. Confirm cable length, source impedance, load impedance, and fixture capacitance when routing higher-frequency signals.<\/p>\n<h2>SWB-2816 Part Number and Accessories<\/h2>\n<table>\n<thead>\n<tr>\n<th>Item<\/th>\n<th>Part Number<\/th>\n<th>Selection Note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NI 2816A \/ SWB-2816 Type A<\/td>\n<td>781420-16<\/td>\n<td>Provides row and column access; one Type A card is used per SwitchBlock system.<\/td>\n<\/tr>\n<tr>\n<td>NI 2816B \/ SWB-2816 Type B<\/td>\n<td>781421-16<\/td>\n<td>Expansion card for larger SwitchBlock matrix configurations.<\/td>\n<\/tr>\n<tr>\n<td>NI PXI-2800<\/td>\n<td>Configuration dependent<\/td>\n<td>Required SwitchBlock carrier for installation in a PXI chassis.<\/td>\n<\/tr>\n<tr>\n<td>SH96F-96M-NI SwitchBlock Cable<\/td>\n<td>150275-01<\/td>\n<td>Compatible standard cable; available in 0.5 m, 1 m, and 1.5 m lengths.<\/td>\n<\/tr>\n<tr>\n<td>SH96F-96M-RES Cable<\/td>\n<td>150579-01<\/td>\n<td>Compatible cable with 100 \u03a9 series resistance for applicable protection requirements.<\/td>\n<\/tr>\n<tr>\n<td>NI TBX-2809<\/td>\n<td>781420-09<\/td>\n<td>Compatible unshielded screw-terminal accessory.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>SWB-2816 Matrix Architecture and Integration<\/h2>\n<h3>8 \u00d7 46 Routing Topology<\/h3>\n<p>The SWB-2816 provides eight rows and 46 columns. The rows can be assigned to shared measurement instruments, sources, or fixture paths, while the columns connect to DUT nodes. This makes the module suitable when the test system needs more independent instrument paths than a 4-row matrix can provide.<\/p>\n<p>The 8 \u00d7 46 topology should be selected from the routing architecture, not only the crosspoint total. Choose the SWB-2816 when eight shared paths and 46 DUT nodes are required within the same low-power matrix system.<\/p>\n<h3>Type A and Type B Card Selection<\/h3>\n<p>The NI 2816A and NI 2816B share the same electrical topology and specifications. The Type A version provides row and column access to the SwitchBlock analog bus, while the Type B version is used for expansion. A complete SwitchBlock system uses only one Type A module.<\/p>\n<h3>Relay Drive and Load Budget<\/h3>\n<p>Each energized SWB-2816 relay consumes 63 mW. NI specifies a simultaneous drive limit of 61 relays and a 3.9 W power-dissipation limit for the card and carrier. Review the relay-drive demand across the full carrier before operating a high-density switching sequence.<\/p>\n<p>The 368 available crosspoints define the possible routing paths; they do not permit every relay to be closed simultaneously. Open routes that are no longer required before changing to the next connection whenever the test sequence allows it.<\/p>\n<h3>Relay Life and Load Protection<\/h3>\n<p>Relay life is determined by switched voltage, current, cable capacitance, DUT capacitance, and protection design. NI specifies electrical life up to 1 \u00d7 10<sup>9<\/sup> operations at 5 V and 10 mA, 4 \u00d7 10<sup>6<\/sup> operations at 10 V and 100 mA, and 5 \u00d7 10<sup>5<\/sup> operations at 100 V and 10 mA with a resistive load below 10 pF.<\/p>\n<p>Capacitive loads can create inrush current, while inductive loads can generate flyback voltage. Both effects can shorten reed-relay life. Evaluate the complete DUT, cable, and instrument path, then apply appropriate suppression or series resistance where required.<\/p>\n<h3>Safety Boundary<\/h3>\n<p>The SWB-2816 is rated for Measurement Category I only. It must not be connected to mains circuits or used for Category II, III, or IV measurements. In mixed-card or bridged SwitchBlock systems, the lowest applicable voltage rating governs the connected system.<\/p>\n<h2>SWB-2816 Applications<\/h2>\n<h3>Multi-Instrument Functional Test<\/h3>\n<p>The SWB-2816 is suitable for automated functional test fixtures that require several shared DMM, source, or stimulus paths across multiple DUT nodes. Its eight-row topology supports more common instrument paths than the 4-row SWB-2815.<\/p>\n<h3>Electronic Assembly and PCB Validation<\/h3>\n<p>Engineers can route compatible low-power measurement and stimulus paths to selected board nodes, connectors, or fixture channels. Confirm the switched load and total fixture capacitance before using the matrix for repetitive production or validation testing.<\/p>\n<h3>Scalable SwitchBlock Systems<\/h3>\n<p>Multiple SWB-2816 cards can be combined in a PXI-2800 carrier or expanded between carriers when additional routing capacity is required. The system should be planned around row count, column count, carrier power budget, and external wiring requirements.<\/p>\n<h2>SWB-2816 Comparison<\/h2>\n<h3>SWB-2816 vs SWB-2815<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <a class=\"product-link\" href=\"https:\/\/pxisource.com\/ru\/product\/swb-2815\/\">NI SWB-2815<\/a> provides a 4 \u00d7 86 topology, while SWB-2816 provides 8 \u00d7 46. Both are 100 V, low-current, high-density reed matrices. Choose SWB-2815 for maximum column density; choose SWB-2816 when the routing plan requires more shared instrument paths.<\/p>\n<h3>SWB-2816 vs SWB-2817<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <a class=\"product-link\" href=\"https:\/\/pxisource.com\/ru\/product\/swb-2817\/\">NI SWB-2817<\/a> provides a 16 \u00d7 22 topology. Select SWB-2816 when eight rows and 46 columns fit the required routing structure; select SWB-2817 when more rows are needed and fewer columns are acceptable.<\/p>\n<h3>SWB-2816 vs SWB-2811<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <a class=\"product-link\" href=\"https:\/\/pxisource.com\/ru\/product\/swb-2811\/\">NI SWB-2811<\/a> provides an 8 \u00d7 21 topology with higher switching capability. Choose SWB-2816 for higher column density within the 100 V \/ 0.25 A class; choose SWB-2811 when the application requires 1 A switching current and 150 V capability.<\/p>\n<h3>Recommended Related Products<\/h3>\n<ul>\n<li><a class=\"product-link\" href=\"https:\/\/pxisource.com\/ru\/product\/pxi-2800\/\">NI PXI-2800<\/a> \u2014 required SwitchBlock carrier.<\/li>\n<li>SH96F-96M-NI SwitchBlock Cable, 150275-01 \u2014 standard compatible cable.<\/li>\n<li>SH96F-96M-RES Cable, 150579-01 \u2014 100 \u03a9 series-resistance cable for applicable protection requirements.<\/li>\n<li>NI TBX-2809, 781420-09 \u2014 compatible screw-terminal accessory.<\/li>\n<\/ul>\n<h3>Request a Quote<\/h3>\n<p>Contact PXISOURCE at <a href=\"mailto:sales@pxisource.com\">sales@pxisource.com<\/a> \u0438\u043b\u0438 <a href=\"https:\/\/wa.me\/8619534079563\">WhatsApp<\/a> for the NI SWB-2816. Please provide the required Type A or Type B version, quantity, carrier requirement, cable length, terminal accessory, switching voltage, current, and load type.<\/p>\n<h2>\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/h2>\n<h4>Can the SWB-2816 operate directly in a PXI chassis?<\/h4>\n<p>No. The SWB-2816 is a SwitchBlock matrix card and requires an NI PXI-2800 carrier for operation in a PXI chassis.<\/p>\n<h4>What is the difference between NI 2816A and NI 2816B?<\/h4>\n<p>Both versions are 8 \u00d7 46 reed matrices. NI 2816A provides row and column access, while NI 2816B is used for expansion. A SwitchBlock system can use only one Type A card.<\/p>\n<h4>Can all 368 crosspoints be energized simultaneously?<\/h4>\n<p>No. NI specifies a simultaneous drive limit of 61 relays and a 3.9 W card and carrier power-dissipation limit. The complete carrier configuration must be reviewed before high-density switching.<\/p>\n<h4>Is the SWB-2816 suitable for 1 A switching?<\/h4>\n<p>No. The maximum switching current is 0.25 A per channel and the maximum carry current is 0.3 A per channel. Select a higher-power matrix, such as SWB-2811, when the application requires 1 A switching capability.<\/p>\n<h4>Can the SWB-2816 switch mains voltage?<\/h4>\n<p>No. The SWB-2816 is rated for Measurement Category I only and must not be connected to mains circuits or Category II, III, or IV signals.<\/p>","protected":false},"excerpt":{"rendered":"<p>Number of Columns: 46<br \/>\nMaximum Switching Current DC: 0.25 A<br \/>\n\u041c\u0430\u043a\u0441. \u043a\u043e\u043c\u043c\u0443\u0442\u0438\u0440\u0443\u0435\u043c\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 DC: 100 \u0412<br \/>\n\u0422\u0438\u043f \u0440\u0435\u043b\u0435: \u0433\u0435\u0440\u043a\u043e\u043d<br \/>\n\u041a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0441\u0442\u0440\u043e\u043a: 8<br \/>\n\u0420\u0435\u0436\u0438\u043c (n-\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439): 1-\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439<\/p>","protected":false},"featured_media":36153,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[673],"product_tag":[],"class_list":["post-36948","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-c-module","first","outofstock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>NI SWB-2816 SwitchBlock 781421-16, In Stock | Project Pricing<\/title>\n<meta name=\"description\" content=\"NI SWB-2816 is an 8 \u00d7 46 reed relay matrix module for NI SwitchBlock systems. 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