With the rapid development of the Internet of Things (IoT) technology, achieving efficient and reliable connectivity between devices has become a critical challenge. In IoT systems, the integrated application of connector modules, power devices, and protection components not only ensures the stability of data and power transmission but also enhances system security and durability. This article will introduce the role and development of these key components in IoT applications, along with related solutions provided by YAGEO and its subsidiary, Pulse.
Providing stable connectivity, power, and protection for IoT applications
In IoT applications, the stability of network connections and power supply, as well as system protection, play a crucial role in ensuring the long-term reliability and security of IoT products. Magnetic components, such as inductors and transformers, and integrated connector modules are essential in IoT applications. Magnetic components are widely used in wireless charging, power management, and signal processing, enhancing device efficiency and stability. Meanwhile, integrated connector modules combine power, signal, and data transmission functions, simplifying device design and improving reliability. In smart home, industrial automation, and intelligent transportation IoT scenarios, these technologies facilitate efficient data transmission and stable connectivity, promoting seamless communication between devices while ensuring low-power operation.
On the other hand, power devices improve energy conversion efficiency, supporting the stable operation of smart devices, particularly in wireless sensor networks, smart homes, and industrial IoT applications. Circuit protection components safeguard electronic systems from overvoltage, overcurrent, and electrostatic discharge (ESD), enhancing system reliability and durability. The integration of these components ensures that IoT devices can operate stably in complex environments, reducing failure rates and extending product lifespan.
A complete range of magnetic products and integrated connector modules for wired communication systems
Pulse, a subsidiary of YAGEO, specializes in the research, design, and manufacturing of magnetic components and connectors for wired communication systems. These components are designed to filter, transmit, and isolate communication signals. Key product lines include Integrated Connector Modules (ICM) for various applications, such as 100M, 1G, 10G, 25G, non-PoE, PoE, PoE+, 1x1, 1xN, 2xN, THT, Press Fit, and PinP solutions. Additionally, Pulse offers discrete magnetic components for LAN applications, including Ethernet Tchip transformers, Ethernet discrete modules, HDBaseT transformers, and PLC transformers.
Pulse also manufactures connectors and housings such as RJ45, RJxx, fiber-optic cages (SFP, SFP+), and USB xx. For WAN applications, it provides discrete magnetic components like RF filters, triplexers and couplers, CM chokes, DSL, and xDSL transformers. Pulse also offers DC/DC power modules to meet the diverse needs of IoT applications.
For IoT applications, Pulse has introduced chip LAN transformers and CMCs, including the PulseChip® chip transformer, which supports STPE single-channel or standard 4-pair lines and complies with IEEE 802.3at/bt standards for PSE/PD devices, supporting power ratings from 15W to 70W.
Additionally, Pulse has launched discrete LAN (10/100) transformers designed for industrial 100Mb Ethernet power supply. These SMD transformer modules comply with IEEE 802.3at/bt standards, supporting 2-pair power lines and ratings from 8W to 40W. Another discrete LAN (1G) SMD transformer module supports mini-industrial 1G Ethernet power supply, meeting IEEE 802.3at/bt standards and supporting power ratings from 15W to 70W.
For industrial applications, Pulse offers discrete LAN (2.5G) transformers, which are industrial 2.5G PoE/transformer modules that comply with IEEE 802.3at/bt standards and support power ratings from 15W to 70W. The discrete LAN (10G) SMD transformer module is designed for industrial 10G Ethernet power supply, fully compliant with 10GBase-T and Intel PHY standards.
Another product, the discrete LAN (10G 5thCH) SMD transformer module, supports industrial 10G Ethernet power and complies with 10GBase-T and Intel PHY standards. Furthermore, Pulse has developed 2.5G/10G discrete Wi-Fi 7 LAN transformers that comply with IEEE 802.3 standards.
Pulse also manufactures RJ45 and other connectors for IoT applications, including connectors for network transformers with a small TARGET catalog range, covering CAT3 to CAT6A, SFP/SFP+, and USB, with customizable designs. The RJ45 PiP (Pin-in-Paste) connector (1G) transformer is designed for industrial applications, featuring a small footprint side-entry RJ45 that optimizes PCB space.
For IoT applications, Pulse provides a broad range of ICM network transformers, spanning 100M to 10G with PoE++ support and customizable options. The ICM (1xN Common Platform) transformer, built with PulseJacks®, integrates 100Mb/1G ICM, making it suitable for industrial and outdoor applications while exceeding IEEE 802.3u and IEEE 802.3ab Ethernet standards.
Another notable offering is the ICM (JXK0 Platform) transformer, which features PulseJacks® integrated PoE ICM for industrial and outdoor use, supporting Ethernet data rates of 1Gb and 2.5Gb and power ratings from 15W to 90W. The ICM (JXF0 Platform) transformer supports data rates from 1Gb to 5Gb, with power ratings from 15W to 90W. The ICM (JT4 Platform) transformer covers data rates from 1Gb to 10Gb and supports power ratings from 15W to 90W.
A comprehensive range of power components for IoT applications
Pulse has introduced a full range of power components, covering power ratings from milliwatts (mW) to kilowatts (kW). Its product line includes power inductors such as power beads, TLVR, round wire, planar, and toroidal constructions, with capabilities exceeding 100Apk. Additionally, Pulse offers isolation transformers supporting push-pull, flyback, and H-bridge topologies, with functional, basic, and reinforced insulation up to 5kVrms Hi-pot. Pulse also provides common mode chokes made from NiZn, MnZn, and nanocrystalline materials, supporting currents up to 45Arms.
Pulse’s switching mode transformers support multiple topologies with power ratings up to 800W and offer functional, basic, and reinforced insulation capabilities. The company also provides current-sensing magnetic components, including current sense transformers that support functional, basic, and reinforced insulation, as well as currents up to 50Arms. Additionally, Pulse offers Rogowski coils in round, rectangular, oval, and FLEXROGO designs, with sensitivity up to 450mV/KA. Custom power magnetic components are also available, offering small form factors with high power density, and Pulse can modify existing catalog components to create full customs for unique solutions.
For high-frequency switched-mode power supply applications, Pulse provides a complete range of magnetic components, including catalog power magnetic components such as power inductors, power transformers, isolation transformers, current-sensing magnetic components, and common mode chokes with through-hole, surface-mount, and pin-in-paste terminations. In addition to its extensive catalog product line, Pulse designs and manufactures custom and application-specific magnetic solutions for key OEMs, EMS providers, and distribution partners.
Pulse’s power product portfolio is extensive. For example, power bead inductors support low inductance (20nH to 1µH) and high currents (>140Apk), making them ideal for high-current multiphase applications powering processors, memory modules, high-current ASICs, and FPGAs. These inductors utilize a 1T or 2T structure for ultra-low DCR (<0.120µOhms), with ferrite cores that minimize AC losses and maximize energy storage density. More than 30 platform sizes are available, ranging from 4x4mm to 13x13mm.
Pulse’s dual-winding TLVR inductors are designed for multiphase and Vcore regulators with fast transient response requirements. The dual-winding design allows for rapid load response, with 1000V isolation between windings. These inductors feature inductance values ranging from 70nH to 200nH, currents up to 145Apk, and nine platform sizes from 10x5x6mm to 12x6x12mm, with matching compensation inductor options.
Pulse’s round wire coil (RWC) inductors come in six platform sizes and use low-loss ferrite core materials to minimize AC losses and eliminate thermal aging, achieving the highest efficiency among all SMT inductors. These platforms range from 7.6x7.4x6.4mm to 26x26x15mm and are widely used in communication, computing, and industrial applications.
Pulse’s composite core inductors come in various platform sizes and offer fully shielded, high-energy storage, and soft saturation solutions for applications up to 120Apk. This design achieves the highest energy density among SMT inductors while minimizing acoustic noise, making them suitable for data communication, computing, industrial, and automotive applications.
The round wire coil inductors feature ferrite cores for low AC losses and are designed to minimize PCB footprint. They support inductance values from 300nH to 100µH and currents over 80Apk, with six platform sizes ranging from 7x7x6mm to 26x26x15mm.
Additionally, Pulse has introduced alternative inductor constructions. Planar inductors, typically constructed with ferrite cores and copper plate windings, offer low profile and high current capability (>30Arms). Toroidal inductors feature round wire winding on a distributed-gap powder material core, providing soft saturation and excellent shielding. Flat coil inductors use flat wire coil for the winding to achieve low DCR and high-current capabilities in low profile designs. Wire-wound inductors, a general-purpose solution, use round magnet wire windings with gapped ferrite cores.
Comprehensive circuit protection components meet the needs of IoT devices
YAGEO has introduced a wide range of circuit protection components, covering overvoltage protection (TVS, ESD, MOV, GDT, SPG, TSS), overcurrent protection (CHIPFuse, PPTC, NTC), and general-purpose diodes (Zener diodes, rectifiers). These products meet the needs of IoT devices, ensuring system stability. YAGEO’s circuit protection components have a broad market presence, strong product line competitiveness, and easy cross-industry applicability. The company also owns a UL-1449 testing laboratory, offering free UL-certified surge pre-testing services. Its Dongguan laboratory has received UL WTDP (Witness Test Data Program) recognition.
For overvoltage protection, YAGEO provides TVS (Transient Voltage Suppressors) using silicon semiconductor technology. These components have a response time in the picosecond range, voltage accuracy of ±5%, and support voltage ranges from 5V to 600V. Their peak pulse current can reach several hundred amperes (10/1000μs), while the HyperFix series supports 3/6/10/16KA (8/20μs) and is UL safety-certified.
YAGEO’s overvoltage protection lineup includes GDT (Gas Discharge Tubes), which are UL/VDE safety-certified. These components use high-temperature sintering processes to package in a discharge gap in a ceramic tube filled with inert gas. They have a response time of 100ns and handle peak pulse currents of 500A to 100KA (8/20µs). The DC spark-over voltage ranges from 75V to 6000V, while the Impulse spark-over voltage spans from 600V to 7800V. With insulation resistance exceeding 1GΩ, these components offer low degradation speed and high reliability, making them ideal for auxiliary power supplies and high-speed networking.
For further overvoltage protection, YAGEO provides SPG (Spark Gap Protectors), which are UL safety-certified and feature low junction capacitance. These components support peak pulse currents of 300A, 500A, 1000A, 2000A, and 3000A (8/20µs). With insulation resistance greater than 100MΩ and slow aging characteristics, they offer high reliability. The DC spark-over voltage ranges from 140V to 5000V, and their non-polarized design makes them suitable for applications in telecommunications, security surveillance, industrial systems, and home appliances.
For overcurrent protection, YAGEO offers PPTC (Polymer Positive Temperature Coefficient) thermistor, certified by UL/TUV. Available in SMD case sizes from 0603 to 2920, and resettable. These components can be used in series within circuits and support Ihold values from 30mA to 14A, with Vmax ratings from 5V to 500V. They are widely used in auxiliary power supplies, telecommunications, battery packs, industrial systems, smart meters, LED drivers, and GPS devices.
Conclusion
In IoT applications, the collaborative design of integrated connector modules, power components, and protection devices not only enhances communication performance but also improves energy efficiency and device safety. Optimized connector module designs ensure efficient signal and power transmission, while the selection of power components impacts system energy management and operational stability. Protection devices provide critical overvoltage, overcurrent, and electromagnetic interference safeguards, ensuring stable operation even in complex environments. The comprehensive product lines from YAGEO and Pulse introduced in this article can meet the diverse needs of IoT devices, making them worth exploring and adopting.