As a global leader in electronic component protection technology, TDK delivers high-performance Protection Devices—engineered for fast response, wide voltage tolerance, and robust durability to safeguard electronic systems from electrostatic discharge (ESD), overvoltage, overcurrent, surge, and short-circuit hazards. Leveraging advanced semiconductor, ceramic, and polymer materials, these devices are tailored to the rigorous requirements of automotive electrification, industrial automation, consumer electronics, medical devices, and telecommunications. By integrating TDK’s Protection Devices, engineers can enhance system reliability, reduce failure risks, and ensure compliance with global safety standards.

Core Product Series of TDK Protection Devices

TDK’s protection device lineup covers comprehensive circuit safety solutions, with specialized series for diverse hazard types and application scenarios:

• ESD (Electrostatic Discharge) Protection Devices:Ultra-fast response suppressors for ESD (±8kV contact, ±15kV air) and transient voltage suppression (TVS). Flagship models like the TDK EPCOS B72200 series (varistors) offer voltage ratings from 18V–1800V, capacitance range 100pF–10µF, and response time <2ns—ideal for consumer electronics (smartphones, laptops), IoT devices, and industrial control panels. Automotive-grade variants (AEC-Q200 compliant) such as the B72210 series withstand extreme temperatures (-40°C–125°C) and vibration, protecting in-vehicle electronics (infotainment, ADAS) from ESD damage.

• Overvoltage & Surge Protection Devices:Varistors, TVS diodes, and gas discharge tubes (GDT) for suppressing overvoltage and surge currents. The TDK EPCOS B72300 series metal oxide varistors (MOV) support surge current ratings up to 20kA (8/20µs waveform), voltage range 230V–1000V AC, suitable for industrial power supplies, renewable energy inverters, and telecommunications base stations. TVS diodes (SMCJ series) offer 6.5V–440V breakdown voltage, 1000W peak power, and low leakage current (<1µA), protecting sensitive semiconductors in medical devices and data centers.

• Overcurrent Protection & Fuses:Miniature fuses, PTC thermistors, and current limiters for overcurrent and short-circuit protection. The TDK EPCOS PTC thermistors (B59000 series) feature operating current from 0.05A–10A, voltage ratings up to 600V AC/DC, and self-resetting functionality—eliminating the need for fuse replacement in industrial automation and automotive BMS (Battery Management Systems). Fast-acting fuses (FF series) comply with IEC 60127-4, with breaking capacity up to 10kA, suitable for consumer electronics power adapters and LED drivers.

• Automotive-Grade Protection Solutions:Customized protection devices for vehicle electrification and ADAS. This includes ESD suppressors for in-vehicle infotainment (compliant with ISO 10605), overvoltage protectors for BMS (ISO 26262 ASIL B), and surge protectors for EV charging stations (IEC 61851-1). All variants meet AEC-Q100/Q200, automotive EMC (CISPR 25), and vibration (ISO 16750) standards.

• Industrial & Harsh Environment Protection Modules:Integrated protection modules combining ESD, overvoltage, and overcurrent protection, with IP67/IP69K waterproof/dustproof ratings. The TDK Industrial Protection Kit supports 24V–48V industrial power systems, compatible with PLCs, motor drives, and sensor networks—resisting extreme temperatures (-40°C–150°C) and chemical corrosion in factory and outdoor environments.

Key Features of TDK Protection Devices

TDK’s protection devices stand out for their safety performance and practicality, addressing critical pain points in electronic system protection:

• Ultra-Fast Response Time: ESD suppressors with <2ns response, TVS diodes with <1ns clamping time, and PTC thermistors with <10ms tripping time—quickly mitigating transient hazards before they damage sensitive components.

• Wide Voltage & Current Range: Voltage ratings from 6.5V–1800V (DC/AC), surge current handling up to 20kA, and overcurrent protection up to 10A—adapting to low-voltage (consumer electronics) and high-voltage (industrial/automotive) systems.

• Rugged Durability & Environmental Adaptability: Withstands extreme temperatures (-40°C–150°C), vibration (20g peak), moisture (IP67/IP69K), and electromagnetic interference (EMC compliant)—reliable for harsh automotive, industrial, and outdoor IoT environments.

• Global Safety Compliance: Meets IEC 61000-4-2 (ESD), IEC 61643 (surge protection), AEC-Q100/Q200 (automotive), ISO 13485 (medical), and UL/cUL standards—ensuring compliance with regional safety regulations.

• Miniaturized & Easy Integration: Compact footprints (down to 0402 for ESD suppressors), surface-mount (SMD) and through-hole packages, and standardized solder pads—simplifying PCB design for space-constrained devices (wearables, automotive ECUs).

Application Fields

TDK Protection Devices are essential for safeguarding electronic systems across high-demand sectors:

• Automotive & Transportation: EV/hybrid vehicle BMS, ADAS sensors, in-vehicle infotainment, EV charging stations, and tire pressure monitoring systems (TPMS)—protecting against ESD, overvoltage, and load surges.

• Industrial Automation: Factory robotics, motor drives, PLCs, renewable energy (solar/wind) inverters, and industrial sensor networks—withstanding harsh factory environments and power grid fluctuations.

• Consumer Electronics: Smartphones, laptops, wearables, LED TVs, and home appliances—protecting against ESD during manufacturing, transportation, and user operation.

• Medical Devices: Portable diagnostic equipment (blood pressure monitors, ultrasound devices), hospital monitoring systems, and implantable devices—ensuring safety and reliability in critical healthcare applications.

• Telecommunications & Data Centers: 5G base stations, network routers, server power supplies, and data storage systems—protecting against surge currents and grid overvoltage.

Source Genuine TDK Protection Devices via Authorized Distributors

To guarantee protection performance, safety compliance, and system reliability, sourcing genuine TDK Protection Devices from official authorized distributors is critical. Counterfeit protection devices often have delayed response times, insufficient voltage tolerance, and poor durability—risking catastrophic system failure, fire, or safety hazards, especially in automotive and medical applications.

At ecparts.cc, we’ve rigorously vetted a network of trusted TDK-authorized distributors, each with:

1. Formal authorization to supply TDK protection devices (including EPCOS series).

2. Expertise in circuit protection application scenarios (automotive ADAS, industrial surge protection, consumer electronics ESD).

3. Proven inventory of hot-selling models (e.g., B72200 varistors, SMCJ TVS diodes, B59000 PTC thermistors) and technical support for 选型 /integration.

Simplify your procurement journey:

1. Browse our TDK Authorized Distributors Directory to find regional suppliers tailored to your location (e.g., Europe, USA, Asia).

2. Access direct contact details, distributor websites, and real-time inventory of TDK protection devices for instant inquiries and sample requests.

3. Verify authorization status to ensure product authenticity and access to TDK’s official safety certification documents.

For TDK-authorized distributors looking to expand their reach to global buyers, submit your website to be listed on ecparts.cc and connect with high-intent procurement leads (e.g., automotive electronics manufacturers, industrial automation solution providers).

Stay tuned to our news section for the latest updates on TDK’s protection device innovations—including new automotive-grade surge protectors and miniaturized ESD solutions!