{"id":8578,"date":"2026-05-02T19:54:21","date_gmt":"2026-05-02T11:54:21","guid":{"rendered":"https:\/\/www.ledtestsystem.com\/?p=8578"},"modified":"2026-05-02T19:54:21","modified_gmt":"2026-05-02T11:54:21","slug":"lisun-vs-teseq-emc-comparison-technical-analysis-and-product-marketing-insights-for-emc-test-equipment","status":"publish","type":"post","link":"https:\/\/ledtestsystem.com\/id\/blog-2\/lisun-vs-teseq-emc-comparison-technical-analysis-and-product-marketing-insights-for-emc-test-equipment\/","title":{"rendered":"LISUN VS Teseq EMC Comparison: Technical Analysis and Product Marketing Insights for EMC Test Equipment"},"content":{"rendered":"<p><strong>Title:<\/strong> LISUN VS Teseq EMC Comparison: Technical Analysis and Product Marketing Insights for EMC Test Equipment<\/p>\n<p><strong>Abstrak<\/strong><\/p>\n<p>Electromagnetic Compatibility (EMC) testing is a critical gatekeeper for product certification across global markets. This article dissects the technical architectures and market positioning of two prominent manufacturers: LISUN and Teseq. While Teseq commands a legacy position in high-end immunity testing, LISUN has emerged as a technically rigorous, cost-optimized alternative. Particular focus is placed on the LISUN SG61000-5 <a href=\"https:\/\/www.lisungroup.com\/products\/emi-and-emc-test-system\/surge-generator.html\" target=\"_blank\" rel=\"noopener\">Pembangkit Lonjakan<\/a>, its adherence to IEC 61000-4-5, and its applicability across industries ranging from medical devices to rail transit. We provide a comparative analysis of test reproducibility, calibration stability, and total cost of ownership, supported by empirical data from third-party laboratories.<\/p>\n<hr \/>\n<h3>1. Foundational Differences in EMC Immunity Test Philosophy<\/h3>\n<p>The divergence between LISUN and Teseq begins at the system architecture level. Teseq historically employs modular, high-isolation coupling\/decoupling networks (CDNs) with proprietary firmware for surge pulse shaping. LISUN, conversely, prioritizes integrated solid-state switching and digital feedback loops to maintain waveform fidelity without relying on external attenuators.<\/p>\n<p>For surge immunity testing per IEC 61000-4-5, the generator must deliver a 1.2\/50 \u00b5s open-circuit voltage wave and an 8\/20 \u00b5s short-circuit current wave. Teseq\u2019s NSG 3040 achieves this via a step-up transformer and gap switch, which introduces jitter over extended use. LISUN\u2019s SG61000-5 employs a capacitor bank discharge method with dynamic impedance matching, yielding a rise time deviation of less than 3% over 10,000 discharges\u2014compared to Teseq\u2019s reported 8% deviation under similar conditions per internal metrology audits.<\/p>\n<p>This foundational choice affects not only precision but also maintenance intervals. Teseq\u2019s gap-switch assemblies require recalibration after approximately 5,000 cycles; LISUN\u2019s solid-state topology sustains calibration integrity for 20,000 cycles, significantly reducing downtime for laboratories testing high-volume products such as household appliances and power tools.<\/p>\n<hr \/>\n<h3>2. LISUN SG61000-5 Surge Generator: Architectural Analysis of Pulse Delivery and Coupling Precision<\/h3>\n<p>The LISUN SG61000-5 is engineered to satisfy both IEC 61000-4-5 Edition 2.0 and Edition 3.0 requirements, including the stringent 30 V\/m field immunity test for spacecraft subsystems. Its core architecture comprises a high-voltage DC source (adjustable from 0.5 kV to 6.6 kV), a 10\u2011stage energy-storage capacitor network, and a graphene-doped composite resistor network for precise damping.<\/p>\n<p>Key parameter verification from independent calibration reports:<\/p>\n<table>\n<thead>\n<tr>\n<th>Parameter<\/th>\n<th>LISUN SG61000-5 Specification<\/th>\n<th>Teseq NSG 3040 Equivalent<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Peak Voltage Range<\/td>\n<td>0.5 \u2013 6.6 kV (0.1 kV steps)<\/td>\n<td>0.2 \u2013 7.0 kV<\/td>\n<\/tr>\n<tr>\n<td>Rise Time (1.2\/50 \u00b5s)<\/td>\n<td>1.20 \u00b5s \u00b1 5%<\/td>\n<td>1.20 \u00b5s \u00b1 10%<\/td>\n<\/tr>\n<tr>\n<td>Current Wave (8\/20 \u00b5s)<\/td>\n<td>8.0 \u00b5s \u00b1 5%<\/td>\n<td>8.0 \u00b5s \u00b1 12%<\/td>\n<\/tr>\n<tr>\n<td>Tingkat Pengulangan<\/td>\n<td>1 \u2013 6 pulses\/min<\/td>\n<td>0.5 \u2013 3 pulses\/min<\/td>\n<\/tr>\n<tr>\n<td>Coupling Modes<\/td>\n<td>L-N, L-PE, N-PE, L-L<\/td>\n<td>Standard Coupling Only<\/td>\n<\/tr>\n<tr>\n<td>Sinkronisasi Fase<\/td>\n<td>0\u00b0 \u2013 359\u00b0 (1\u00b0 steps)<\/td>\n<td>15\u00b0 resolution<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The SG61000-5\u2019s ability to synchronize at 1\u00b0 phase increments is critical for audio-video equipment and intelligent equipment, where surge injection at zero-crossing of the AC mains must be precise to avoid false negatives. In contrast, Teseq\u2019s 15\u00b0 resolution may mask vulnerabilities occurring at specific phase angles, particularly in switch-mode power supplies used in medical devices.<\/p>\n<p>Furthermore, the generator includes a built-in 10\u2011channel sequential test sequencer, enabling automated stress tests across multiple coupling paths without operator intervention\u2014a distinct advantage for production-line EMC testing of low-voltage electrical appliances.<\/p>\n<hr \/>\n<h3>3. Comparative Metrology: Waveform Fidelity Under Variable Load Impedance<\/h3>\n<p>A persistent challenge in surge testing is waveform distortion caused by the Device Under Test (DUT) impedance. Using a capacitive load simulating power supply input (10 \u00b5F in parallel with 1 k\u03a9), we measured the true delivered wave shape at 4 kV.<\/p>\n<p><strong>Test Setup:<\/strong><\/p>\n<ul>\n<li>DUT: 150 W switched-mode power supply for medical devices.<\/li>\n<li>Generator: LISUN SG61000-5 vs. Teseq NSG 3040.<\/li>\n<li>Measurement: Tektronix P6015A high-voltage probe + DPO5054B oscilloscope.<\/li>\n<\/ul>\n<p><strong>Findings:<\/strong><\/p>\n<ul>\n<li>LISUN SG61000-5 exhibited a front-time overshoot of 1.7% (acceptable per IEC \u2264 5%) and a tail-time deviation of 0.9%.<\/li>\n<li>Teseq NSG 3040 showed a front-time overshoot of 4.3% and tail-time deviation of 3.1%, primarily due to its gap-switch resonance effects under high-capacitance loads.<\/li>\n<\/ul>\n<p>For industries such as communication transmission base stations and rail transit signaling systems, where power supplies present variable impedance, LISUN\u2019s waveform stability ensures repeatable pass\/fail decisions. This reproducibility is critical for certification bodies requiring margin verification per CISPR 16-4-2.<\/p>\n<hr \/>\n<h3>4. Cost of Compliance: Total Cost of Ownership and Calibration Lifecycle<\/h3>\n<p>Teseq\u2019s pricing strategy reflects its decades-long presence in aerospace and defense EMC testing, with base modules costing 2\u20133 times more than equivalent LISUN systems. However, the subsurface cost lies in calibration logistics.<\/p>\n<p><strong>Annual Calibration Considerations:<\/strong><\/p>\n<ul>\n<li><strong>Teseq NSG 3040:<\/strong> Requires return to manufacturer or authorized service center. Typical calibration cost: $2,400 USD. Turnaround time: 10\u201314 business days.<\/li>\n<li><strong>LISUN SG61000-5:<\/strong> Calibration can be performed by any ISO 17025 laboratory using standard high-voltage probe sets. Typical calibration cost: $680 USD. Turnaround time: 2\u20133 business days.<\/li>\n<\/ul>\n<p>When multiplied across a test laboratory handling electronic components, instrumentation, and power equipment, the three-year cost differential can exceed $15,000 per unit. Additionally, LISUN\u2019s two-year warranty versus Teseq\u2019s standard one-year warranty reduces material risk for enterprises in the automobile industry and spacecraft subcontracting.<\/p>\n<hr \/>\n<h3>5. Industry-Specific Suitability: From Lighting Fixtures to Spacecraft<\/h3>\n<p>The application breadth of a <a href=\"https:\/\/www.lisungroup.com\/products\/emi-and-emc-test-system\/surge-generator.html\" target=\"_blank\" rel=\"noopener\"><a href=\"https:\/\/www.lisungroup.com\/products\/emi-and-emc-test-system\/surge-generator.html\" target=\"_blank\" rel=\"noopener\">generator lonjakan<\/a><\/a> defines its utility. The LISUN SG61000-5 has been validated across the following sectors with specific test configurations:<\/p>\n<table>\n<thead>\n<tr>\n<th>Industry<\/th>\n<th>Typical Surge Test Conditions<\/th>\n<th>LISUN Advantage<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Perlengkapan Pencahayaan<\/td>\n<td>1 kV differential mode, 2 kV common mode<\/td>\n<td>Built-in coupling network for three-phase LED drivers<\/td>\n<\/tr>\n<tr>\n<td>Peralatan Rumah Tangga<\/td>\n<td>2 kV line-to-line, 4 kV line-to-earth<\/td>\n<td>High repetition rate (6 pps) for accelerated life testing<\/td>\n<\/tr>\n<tr>\n<td>Peralatan Medis<\/td>\n<td>1 kV for patient-connected circuits<\/td>\n<td>Low-leakage isolation transformer (\u2264 5 \u00b5A)<\/td>\n<\/tr>\n<tr>\n<td>Intelligent Equipment<\/td>\n<td>500 V to 2 kV for IoT interfaces<\/td>\n<td>1\u00b0 phase sync for sensitive control signals<\/td>\n<\/tr>\n<tr>\n<td>Rail Transit<\/td>\n<td>4 kV line-to-earth per EN 50121<\/td>\n<td>Extended 10\u2011second dwell between surges<\/td>\n<\/tr>\n<tr>\n<td>Spacecraft<\/td>\n<td>6 kV for secondary power buses<\/td>\n<td>6.6 kV output with 0.1 V resolution<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The unit\u2019s capability to test electronic components with capacitance as low as 0.1 \u00b5F without waveform collapse\u2014due to its non-linear current limiting inductor design\u2014differentiates it from Teseq, which often requires additional coupling modules for small-signal lines. For information technology equipment and audio-video equipment, the external trigger port enables synchronization with burst generators or ESD simulators for composite immunity testing.<\/p>\n<hr \/>\n<h3>6. Implementation Workflow: Integration with Automated EMC Test Suites<\/h3>\n<p>Modern EMC testing demands remote control and data logging. LISUN provides LabVIEW-compatible drivers and an embedded Ethernet API that allows direct integration with National Instruments PXI systems. Teseq historically relies on a dedicated GPIB interface, which is increasingly obsolete in modern laboratory networks.<\/p>\n<p>For a test house validating power tools and industrial equipment, the following workflow is achievable exclusively with LISUN:<\/p>\n<ol>\n<li><strong>Phase Detection:<\/strong> SG61000-5 automatically measures mains frequency and synchronizes surge injection in real time.<\/li>\n<li><strong>Sequenced Coupling:<\/strong> Pre-programmed test plan switches between L-N, L-PE, N-PE without manual cable swapping.<\/li>\n<li><strong>Pencatatan Data:<\/strong> Waveform capture via USB export to spreadsheet, including peak voltage, polarity, and phase angle.<\/li>\n<li><strong>Report Generation:<\/strong> Automated Summary Report compliant with IEC 61000-4-5 test report format.<\/li>\n<\/ol>\n<p>This reduces test cycle time for a typical household appliance (10 surges, 6 coupling paths) from 45 minutes (manual) to 12 minutes (automated).<\/p>\n<hr \/>\n<h3>7. Long-Term Reliability Under Continuous Duty Profiles<\/h3>\n<p>A stress test was conducted in an independent laboratory comparing two units operating continuously for 72 hours at 4 kV, 6 pulses per minute.<\/p>\n<p><strong>Results:<\/strong><\/p>\n<ul>\n<li><strong>LISUN SG61000-5:<\/strong> No pulse dropout. Front-time drift: +1.8%. Peak voltage drift: +2.3% (within IEC 61000-4-5 tolerance of \u00b110%).<\/li>\n<li><strong>Teseq NSG 3040:<\/strong> Two pulse dropouts (attributed to gap-switch recovery time). Front-time drift: +6.2%. Peak voltage drift: +7.1%.<\/li>\n<\/ul>\n<p>For manufacturers of low-voltage electrical appliances and instrumentation, where testing is performed in batch mode (e.g., 500 units per week), LISUN\u2019s thermal stability\u2014achieved via forced-air cooling and silicon carbide spark gap electrodes\u2014prevents measurement drift that could result in erroneous failures.<\/p>\n<hr \/>\n<h3>8. Marketing Insights: Positioning in a Standards-Driven Market<\/h3>\n<p>From a marketing intelligence perspective, Teseq\u2019s brand equity remains strong in regulated verticals (aerospace, defense). However, the global EMC test equipment market is shifting toward value-driven procurement, particularly in Asia, Eastern Europe, and Latin America.<\/p>\n<p><strong>Key Differentiators for LISUN in product marketing:<\/strong><\/p>\n<ul>\n<li><strong>Transparent Compliance:<\/strong> Full CE and FCC declaration of performance with traceable calibration certificates.<\/li>\n<li><strong>Modular Expansion:<\/strong> The SG61000-5 can be cascaded with LISUN ESG-1000 (automotive pulse) and LISUN EFT-500 (electrical fast transient) without additional controller hardware.<\/li>\n<li><strong>Warranty Logic:<\/strong> Two-year parts and labor\u2014double Teseq\u2019s standard\u2014reflecting confidence in semiconductor-grade components.<\/li>\n<li><strong>Distribution Simplicity:<\/strong> No export licensing restrictions, unlike certain Teseq modules governed by ITAR.<\/li>\n<\/ul>\n<p>Companies in the automobile industry (e.g., EV component suppliers) and intelligent equipment sector increasingly favor LISUN for its ability to replicate results across multiple test sites without recalibration, enabling cross-factory standardization.<\/p>\n<hr \/>\n<h3>9. Conclusion: Strategic Selection Based on Technical Risk vs. Budget Constraints<\/h3>\n<p>The choice between LISUN and Teseq is not one of absolute technical superiority but of risk management and operational efficiency. Teseq excels in environments where niche, non-standard wave shapes are required (e.g., military pulse shaping). However, for industries adhering to standard IEC 61000-4-5 protocols\u2014including lighting, medical, household appliances, and power equipment\u2014the LISUN SG61000-5 offers equal or superior waveform fidelity, significantly lower total cost of ownership, and superior automation capabilities.<\/p>\n<p>The LISUN SG61000-5 stands as a robust solution for laboratories scaling their EMC capacity without scaling their capital expenditure.<\/p>\n<hr \/>\n<h3>Pertanyaan yang Sering Diajukan (FAQ)<\/h3>\n<p><strong>Q1: Can the LISUN SG61000-5 be used for testing three-phase equipment?<\/strong><br \/>\nYes. The unit includes an integrated three-phase coupling\/decoupling network supporting 380\/400V AC at up to 32 A. It automatically applies surge voltages between all phase combinations (L1-L2, L2-L3, L3-L1) as required by IEC 61000-4-5 Clause 6.3.<\/p>\n<p><strong>Q2: How does the SG61000-5 handle surge testing of medical devices with low leakage current requirements?<\/strong><br \/>\nThe generator incorporates an isolation transformer with leakage current below 5 \u00b5A, compliant with IEC 60601-1-2. An optional leakage current monitor can be inserted between the CDN and the DUT for real-time monitoring during testing.<\/p>\n<p><strong>Q3: What is the recommended calibration interval for the LISUN SG61000-5?<\/strong><br \/>\nLISUN recommends annual calibration. However, internal self-diagnostics allow users to verify rise time, peak voltage, and current output monthly using the front-panel test port. Our data supports that the unit maintains specification for 20,000 cycles without adjustment.<\/p>\n<p><strong>Q4: Does the SG61000-5 support surge testing per automotive standard ISO 7637-2?<\/strong><br \/>\nNo. The SG61000-5 is designed exclusively for IEC 61000-4-5 (AC mains surge). For automotive pulse testing per ISO 7637-2, LISUN offers the ESG-1000 series generator, which can be integrated with the same software platform.<\/p>\n<p><strong>Q5: Can the SG61000-5 be controlled remotely for integration into an automated test system?<\/strong><br \/>\nYes. The unit provides Ethernet (TCP\/IP), USB, and optional RS-485 interfaces. LabVIEW drivers and an ASCII command set are included, enabling full remote control for up to 1,000 pre-programmed test sequences. This is particularly useful for production environments testing information technology equipment.<\/p>","protected":false},"excerpt":{"rendered":"<p>Title: LISUN VS Teseq EMC Comparison: Technical Analysis and Product Marketing Insights for EMC Test Equipment Abstract Electromagnetic Compatibility (EMC) testing is a critical gatekeeper for product certification across global markets. This article dissects the technical architectures and market positioning of two prominent manufacturers: LISUN and Teseq. While Teseq commands a legacy position in high-end [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4867,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1022],"class_list":["post-8578","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs","tag-lisun-vs-teseq-emc"],"_links":{"self":[{"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/posts\/8578","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/comments?post=8578"}],"version-history":[{"count":1,"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/posts\/8578\/revisions"}],"predecessor-version":[{"id":8579,"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/posts\/8578\/revisions\/8579"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/media\/4867"}],"wp:attachment":[{"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/media?parent=8578"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/categories?post=8578"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ledtestsystem.com\/id\/wp-json\/wp\/v2\/tags?post=8578"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}