Import Encapsulated Transformer — Buy in wholesale FOB from Supplier in China
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Encapsulated transformers from Tianjin Sitong Electronic Co., Ltd. are miniature power transformers designed for low-power electronic circuits, with power ratings from 0.3VA to 36VA. The core is encapsulated in a moisture-resistant resin, providing protection against humidity, dust, and corrosion. These units are built for continuous operation in environments with ambient temperatures up to 75°C and are available in EE20, EI30, EI42, EI48, EI54, and EI60 series form factors.
The transformers use Class B (130°C) insulation systems and are wound with copper wire to meet specified primary and secondary voltage outputs. Primary inputs support both 115V at 60Hz and 230V at 50Hz, with single or dual secondary windings configurable for output voltage. The encapsulation material is thermally stable and meets RoHS and CE standards, with no exposed windings or solder joints to reduce failure risk in harsh conditions.
These transformers are commonly used in medical devices, industrial controls, safety systems, and consumer electronics requiring isolated low-voltage power. Buyers typically source them for embedded designs where size, reliability, and environmental resistance are critical. Packaging is bulk or tape-and-reel, depending on volume. MOQ and lead time are not listed and must be confirmed directly with the supplier. Custom winding ratios and pin configurations are accepted for volume orders.
| Power rating | 0.3VA to 36VA |
| No-load loss | 0.3 to 10VA |
| Primary voltage | 115V AC at 60Hz or 230V AC at 50Hz |
| Secondary configuration | Single or dual winding, voltage configurable |
| Dielectric strength | 4000Vrms between primary and secondary |
| Insulation class | Class B (130°C maximum operating temperature) |
| Ambient operating temperature | Maximum 75°C |
| Core type | EE20, EI30, EI42, EI48, EI54, EI60 series |
| Encapsulation material | Thermally stable epoxy resin, UL94 V-0 rated |
| Compliance | CE certified, RoHS compliant |
Tianjin Sitong Electronic Co., Ltd. is located in Baitangkou Village, Xinzhuang Town, Tianjin, China. The company specializes in the design and manufacturing of miniature encapsulated transformers for electronic applications. The listing provides no information on workforce size, annual production volume, or certifications beyond CE and RoHS compliance. No factory photos, audit reports, or client references are included.
The supplier's focus appears limited to standard encapsulated transformer models in the EE and EI series. No claims are made regarding R&D capability, ISO certification, or in-house winding equipment. The product range is narrow, with customization offered only for winding ratios and physical configurations. Response rate and average response time are not tracked on the platform, indicating limited buyer engagement.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Sourcing Encapsulated transformer from Tianjin Sitong Electronic Co., Ltd. - China Import Guide
Verify the core material, winding wire type, and encapsulation resin before ordering. Request test reports for dielectric strength, temperature rise, and no-load current for each batch. Confirm that the transformer meets the CE mark and RoHS declaration for your market, and ensure the supplier provides traceable batch numbers on packaging.
Confirm Incoterms, packaging format, and lead time directly with the supplier. Standard packaging is bulk in anti-static bags, with tape-and-reel available for automated assembly. Lead time for standard models is typically 2 to 4 weeks; custom windings may require 6 to 8 weeks. Payment terms are usually T/T in advance or LC at sight.
Perform incoming inspection using a transformer tester to measure primary and secondary impedance, insulation resistance, and output voltage under load. Check for physical defects in the encapsulation and verify pin alignment with the datasheet. Retain samples for 12 months to monitor performance degradation. Ensure all documentation includes compliance certificates and material declarations.
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30 suppliersBuy Encapsulated Transformer in Bulk — Verified Supplier in China
When sourcing Encapsulated Transformer for your business, securing the right balance of quality and cost is essential. Tianjin Sitong Electronic Co., Ltd., a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $0.87/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Agriculture sector with strong demand from importing countries worldwide.
Encapsulated Transformer Specifications, Trade Terms & Pricing
Importing Encapsulated Transformer requires careful attention to shipping logistics, customs compliance, and secure payment terms. Tianjin Sitong Electronic Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
About Tianjin Sitong Electronic Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Encapsulated Transformer has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Agriculture category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Encapsulated Transformer — Shipping, Logistics & Customs
Importing Encapsulated Transformer requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Encapsulated Transformer
What is the wholesale price of Encapsulated Transformer?
The current listed wholesale price for Encapsulated Transformer from Tianjin Sitong Electronic Co., Ltd. is $0.87/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Tianjin Sitong Electronic Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Encapsulated Transformer?
The supplier, Tianjin Sitong Electronic Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Encapsulated Transformer. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Encapsulated Transformer?
The HS Code classification for Encapsulated Transformer depends on the specific grade and form. Contact Tianjin Sitong Electronic Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import Encapsulated Transformer from China?
To import Encapsulated Transformer from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Tianjin Sitong Electronic Co., Ltd.. Ensure you have the necessary import licenses for Agriculture products in your destination country.
Is Tianjin Sitong Electronic Co., Ltd. a verified supplier?
Yes, Tianjin Sitong Electronic Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Encapsulated Transformer?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Tianjin Sitong Electronic Co., Ltd. through EximNext.
What packaging options are available for bulk orders of Encapsulated Transformer?
Tianjin Sitong Electronic Co., Ltd. offers Encapsulated Transformer with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Encapsulated Transformer the most?
Encapsulated Transformer is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Tianjin Sitong Electronic Co., Ltd. through our platform.
What certifications does this Encapsulated Transformer supplier hold?
Tianjin Sitong Electronic Co., Ltd. maintains international quality certifications. These ensure that the Encapsulated Transformer meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Encapsulated Transformer on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Tianjin Sitong Electronic Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Tianjin Sitong Electronic Co., Ltd..
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