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AboutShijiazhuang Tonghe Electronic Technology Co., Ltd. is a high-tech enterprise dedicated to technological innovation, product innovation, and management innovation in the power electronics industry. It integrates R&D, manufacturing, sales, and service in the power electronics sector, providing customers with comprehensive energy solutions. -
ProductAfter more than two decades of rapid development, the company has established an industrial structure centered around three major business segments: smart grids, new-energy vehicles, and aerospace. Its sales network covers over 30 provinces, municipalities, and autonomous regions across China, and its products are exported overseas, earning unanimous praise from both domestic and international customers.
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PartnerIn the future, the company will continue to uphold its corporate mission of “embracing an entrepreneurial spirit, focusing on power electronics, efficiently utilizing energy, and serving global users,” while adhering to the core values of “contribution, mutual benefit, gratitude, efficiency, and innovation” to provide users with high-quality products and services.
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BlogsCommunicate with sincerity and courageously take responsibility; keep the customer at the center of our focus, continuously optimize the company’s management systems and processes, consistently identify and meet customer needs, deliver and enhance customer value, and maintain the company’s rapid growth.
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Join usThe company consistently upholds a talent philosophy centered on “people first,” actively fostering an atmosphere of respect, understanding, integrity, and friendliness. We provide a robust platform for talent development, enabling our employees to become powerful pillars of the company’s sustained growth and achieving mutual growth and shared success between the company and its talents.
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InvestorDisclose information relevant to investors’ decision-making in a truthful, accurate, complete, timely, and fair manner; strengthen communication and engagement with investors; and enhance and improve investor relations management.
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ContactWith a spirit of self-respect, self-reliance, and relentless self-improvement, coupled with an open mind, we focus on customer needs based on continuous learning and absorption. We dare to take risks, keep exploring, and steadily build management models and technological products that reflect our unique characteristics.
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THQZD800-24R Series
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Product Introduction
The THQZD800-24R series products are on-board DC/DC converters designed specifically for electric vehicle battery thermal management systems. They convert the high-voltage power from the动力电池 into low-voltage 24VDC, providing power to low-voltage devices in the battery thermal management system, such as fans, water pumps, and the BMS. This DC-DC converter features an input voltage range of 350–800VDC, with a rated input voltage of 540VDC, a rated output of 24VDC, and a rated output power of 800W.
Product Features
◆ The product features a molded enclosure that can meet the high IP67 protection rating for mass production;
◆ Small size, light weight, and easy installation;
◆ Wide-range input of 350–800VDC, compatible with multiple voltage platforms;
◆ The system’s operating environment temperature ranges from -40℃ to 65℃, with intelligent temperature derating and overtemperature protection.
◆ Maximum efficiency ≥ 94%;
◆ Employs external air-cooling, suitable for a wide range of environments and offering reliable heat dissipation.
◆ Equipped with protection features including output short-circuit protection, output overvoltage protection, input overvoltage protection, input undervoltage protection, reverse connection protection for the input, and overtemperature protection;
◆ Surge (impulse) immunity (Level 3): Differential-mode input: 1000V, positive polarity, half-wave duration of 50 microseconds, 5 repetitions; Common-mode input: 2000V, both positive and negative polarities, half-wave duration of 50 microseconds, 5 repetitions. Performance requirement: B
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Dedicated to providing customers with customized system energy solutions.