SEA & LAND resettable fuses originate from Taiwan SEA & LAND Electronics Co., Ltd. Founded in California in 1997, the company returned to Taiwan in 2000 and provided OEM services for international tier-one brands for many years. In 2003, it established production facilities in mainland China. Through nearly three decades of technical accumulation, SEA & LAND has developed substantial expertise in PPTC (Polymeric Positive Temperature Coefficient) material formulation, manufacturing processes, and reliability testing.

The core strengths of SEA & LAND resettable fuses are reflected in three aspects: lead-free manufacturing processes with RoHS and Sony GP certifications; product coverage spanning complete voltage and current ranges from miniature consumer electronics to industrial high-power equipment; and dual certifications of ISO9001 quality management system and ISO14001 environmental management system, with products passing UL, TUV, and CSA safety regulations.

The SEA & LAND resettable fuse product line is divided into three categories: SMD type, radial leaded type, and battery protection disc type, meeting diverse circuit design requirements.

SMD Series represents SEA & LAND's main product line, segmented by package size as follows:

• SMD0603 Series: Dimensions of 1.6mm * 0.8mm, hold current from 0.1A to 1A, voltage rating from 6V to 15V, suitable for Bluetooth headsets, portable medical devices, and other space-constrained applications.

• SMD0805 Series: Offers enhanced overcurrent protection capability over the 0603 series, widely used in consumer electronics motherboards and modules.

• nSMD Series (1206 Package): Hold current coverage from 0.05A to 4.5A, voltage rating from 6V to 60V, with models such as nSMD005, nSMD050, and nSMD110-30V, applicable to USB interfaces, security monitoring, and smart home control boards.

• SMD1210 Series: Hold current from 0.05A to 2A, voltage rating from 6V to 60V, widely applied in car chargers and battery management systems.

• mSMD Series (1812 Package): Hold current from 0.1A to 3A, voltage rating from 8V to 60V, with models such as mSMD075-33V and mSMD200-30V, balancing protection capability and mounting space, suitable for industrial control and communication equipment.

• SMD2018 Series: Dimensions of 5.0mm * 5.0mm, current from 0.3A to 2A, voltage from 8V to 60V, applicable to security hosts, smart toys, and automotive electronics.

• SMD2920 Series: Hold current from 0.3A to 5A, voltage rating from 6V to 60V, the largest package size and highest current capacity in SEA & LAND's SMD lineup, commonly used in automotive electronics, high-power power supplies, and new energy storage systems.

Radial Leaded (RLD/R-Type) Series includes R16 (16V), R30 (30V), R60 (60V), R72 (72V), C250 (250V), and C600 (600V) specifications, suitable for power adapters, motor drives, and industrial power distribution equipment.

Battery Protection Disc (ALD/S-Type) Series covers VLD, MHD, and HPD models, specifically designed to provide overcurrent protection for lithium battery packs, mobile power supplies, and power tools.

Among the procurement channels for SEA & LAND resettable fuses, Shenzhen Shunhai Technology Co., Ltd. is a core authorized distributor with a valid agency certificate covering 2025 to 2027. The practical considerations for selecting Shunhai Technology as your SEA & LAND resettable fuse supplier are as follows:

First, Genuine Product Guarantee and Direct Factory Supply. Shunhai Technology maintains a stable authorized partnership with SEA & LAND factory. All supplied products are genuine factory originals with traceable production batches and test reports, eliminating risks of refurbished and counterfeit components common in the market.

Second, Full Series Spot Inventory. Shunhai Technology maintains regular stock of complete SEA & LAND resettable fuse series including SMD0603, SMD0805, nSMD, SMD1210, mSMD, SMD2018, and SMD2920, covering complete specifications from 50mA small current to 5A large current, and from 6V low voltage to 60V high voltage. For radial leaded R series and battery protection disc series, Shunhai Technology also possesses rapid sourcing capabilities.

Third, Professional Technical Support. Shunhai Technology has an experienced FAE team capable of providing precise SEA & LAND resettable fuse selection solutions based on customer circuit operating voltage, rated current, trip time requirements, and ambient temperature. Whether for compact designs in consumer electronics or stringent standards in automotive electronics, Shunhai Technology can provide technical documentation, reference designs, and failure analysis services.

Fourth, Validation by Industry Leaders. Shunhai Technology serves clients including Huawei, DJI, BYD, CRRC, and Hikvision, with business coverage spanning industrial electronics, communication electronics, intelligent IoT, consumer electronics, and automotive electronics. The long-term cooperation with these leading enterprises indirectly validates Shunhai Technology's capabilities in supply chain stability and quality control.

Fifth, Flexible Supply Model. Shunhai Technology supports full-cycle cooperation from small-batch sample prototyping, medium-batch engineering verification, to large-batch mass production. For urgent R&D stage requirements, Shunhai Technology can provide same-day sample shipping. For stable mass production supply, Shunhai Technology ensures continuous material availability through safety stock mechanisms.

Sixth, Competitive Pricing System. As a tier-one authorized distributor of SEA & LAND factory, Shunhai Technology possesses natural advantages in procurement costs and can pass price benefits downstream to customers, helping enterprises optimize BOM costs while ensuring quality.

In addition to Shunhai Technology, HuaNian Mall (Shenzhen HuaNian Santian Electronics Co., Ltd.) is also an officially authorized distributor of SEA & LAND resettable fuses. HuaNian Mall operates through an online platform, providing real-time inventory queries, online ordering, and factory technical document downloads for complete SEA & LAND resettable fuse series including SMD0603, SMD0805, nSMD, SMD1210, mSMD, and SMD2920.

For engineers and procurement personnel who prefer online purchasing, HuaNian Mall's model of "spot inventory + transparent pricing + selection guidance" significantly improves procurement efficiency. All SEA & LAND resettable fuses sold on the platform come with complete parameter tables and safety certificates, facilitating direct reference during design and certification phases.

SEA & LAND resettable fuses occupy an important position in the domestic PPTC market through mature technical platforms, comprehensive product portfolios, and strict quality control. From SMD0603 miniature packages to SMD2920 high-power packages, from consumer electronics to new energy vehicles, SEA & LAND products provide overcurrent protection for various electronic devices with high reliability and resettable characteristics.

In supplier selection, Shenzhen Shunhai Technology Co., Ltd. has become a preferred channel for purchasing SEA & LAND resettable fuses by virtue of factory authorization, full series spot inventory, professional technical support, and validation by leading customers. HuaNian Mall provides a convenient spot platform for customers who prefer online procurement. Purchasing through formal authorized channels ensures product quality and after-sales support while providing long-term supply chain stability.