In today's increasingly complex electronic devices, overvoltage protection has become a critical element in ensuring stable operation. Whether it's communication base stations, industrial automation equipment, or data center servers, all face the risk of overvoltage surges from external power grids or internal circuits. These overvoltage events can lead to equipment damage, data loss, or even more serious safety incidents. To effectively address this challenge, Hoyasen Semiconductor has launched the P1900MEL thyristor, a high-performance semiconductor device specifically designed for overvoltage protection.

I. Product Overview The Hoyasen Semiconductor P1900MEL is a semiconductor component, belonging to the thyristor overvoltage protection device (TSPD) category. Manufactured using advanced solid-state silicon technology, it effectively protects baseband equipment from damage caused by overvoltage transients. This product is primarily used in communications, industrial automation, and power systems, providing reliable overvoltage protection and ensuring stable operation in complex electromagnetic environments.

II. Product Features

(I) Low-profile Package The P1900MEL uses a TO-3P (TO-247AD) package with a low-profile design, saving space and facilitating installation within compact devices. This packaging design not only improves the integration of the device but also reduces its overall size and weight, saving users valuable installation space.

(II) Bidirectional Short Circuit Protection The P1900MEL provides bidirectional short circuit protection, effectively preventing circuit damage under both forward and reverse overvoltage conditions. This bidirectional protection mechanism ensures that the device is fully protected against overvoltage surges in any direction, improving its reliability and safety.

(III) High Off-State Impedance and Low Leakage Current

The P1900MEL exhibits high impedance in the off-state while maintaining extremely low leakage current, with a maximum leakage current of only 5μA. This means that under normal operating conditions, the device has minimal impact on the circuit, introducing no additional losses or interference, while reducing energy waste and lowering equipment operating costs.

(IV) Low On-State Voltage and Fast Response

The P1900MEL has a low on-state voltage, with a maximum on-state voltage of 2.2V, and a fast response to surge voltages. This ensures that the device can quickly conduct during overvoltage protection, rapidly dissipating overvoltage energy, protecting the equipment from high voltage damage, and preventing equipment damage caused by overvoltage.

(V) Excellent Transient Surge Absorption and High Surge Capability

The P1900MEL possesses excellent transient surge absorption capability, able to withstand peak pulse currents up to 5000A (1.2/50μs-8/20μs waveform), and a surge capability of up to 8/20μs 5KA. This powerful surge absorption capability enables it to effectively cope with various complex electromagnetic environments, protect equipment from transient overvoltage impacts, and ensure the safety and reliability of equipment under high-intensity surges.

(vi) Rapid Response

The P1900MEL offers a fast response to surge voltages, detecting overvoltage events quickly and implementing protective measures rapidly. This rapid response ensures timely protection of the equipment in the event of overvoltage, preventing damage caused by overvoltage.

III. Electrical Characteristics

* Maximum rated peak pulse voltage: 10000V (2/50μs-2Ω and 10/700μs-40Ω waveforms), ensuring reliable protection under extreme conditions.

* Trigger current: 800mA, ensuring rapid triggering under appropriate conditions for reliable protection.

* Holding current: 4mA, ensuring stable conduction after turn-on until the overvoltage event ends.

* Off-state capacitance: 50pF, a low capacitance value ensures minimal impact on the circuit when the device is off, without introducing additional losses or interference.

IV. Mechanical Characteristics

Package: The P1900MEL uses a TO-3P (TO-247AD) package with a low-profile design, saving space and facilitating installation in compact devices.

Materials: The package material meets UL 94V-0 fire resistance standards, providing excellent flame retardancy. The device also complies with RoHS standards, meeting environmental requirements and ensuring product safety and environmental friendliness.

Leads: Matte tin plating conforms to J-STD-002 and JESD 22-B102 standards, providing good solderability.

Mounting Torque: 10 in-lbs is the maximum value. This torque ensures the reliability and stability of the device during installation, preventing damage or poor contact due to improper installation.

V. Application Areas

The recommended circuit for the P1900MEL thyristor application is shown in the following figure:

In AC circuits, by controlling the triggering time of a thyristor (marked "Z"), the voltage and current on the load (marked "Power Circuit") can be effectively controlled, achieving functions such as voltage regulation or speed control. Based on this application principle and its inherent characteristics, the P1900MEL is suitable for various standards and application scenarios, including but not limited to:

TIA-968-A/B

ITU K.20/21 Enhanced and Basic Levels

GR 1089 In-Building and Out-of-Building Standards

IEC 61000-4-5

YD/T 1082

YD/T 993

YD/T 950

These standards cover multiple fields such as communications, industrial automation, and power systems, ensuring the applicability and reliability of the P1900MEL thyristor in applications such as CATV amplifiers, telecommunications base station equipment, mobile phone signal base stations, UPS/AC high-power distribution networks, automotive battery charging systems, solar photovoltaic inverters, and uninterruptible battery backup systems.

VI. Soldering Parameters Detailed soldering parameters ensure reliability and consistency during the soldering process, reduce the risk of soldering defects, and ensure the quality of components during installation. The soldering parameters for P1900MEL are as follows:

Lead-free Assembly:

Preheat Temperature (Ts(min)): +150℃

Maximum Temperature (Ts(max)): +200℃

Heating Time (ts): 60-180 seconds

Average Heating Rate (TL to Peak): 3℃/second (Max)

Reflow Temperature (TL): +217℃

Reflow Time (tp): 60-150 seconds

Peak Temperature (Tp): +260℃ (+0/-5℃) Peak temperature hold time (tp): 30 seconds (maximum)

Cooling rate: 6℃/second (maximum)

Time from 25℃ to peak temperature (tp): 8 minutes (maximum)

VII. Summary The Hoyasen P1900MEL thyristor is a high-performance overvoltage protection device with advantages such as low-profile packaging, bidirectional short-circuit protection, high off-state impedance, low leakage current, low on-state voltage, excellent transient surge absorption capability, fast response, short-circuit failure mode, and high surge capability. These characteristics make it outstanding in multiple fields such as communications, industrial automation, and power systems, providing reliable overvoltage protection for equipment. Users can use this device with confidence, without worrying about the safety and reliability of equipment in complex electromagnetic environments. The detailed electrical characteristics, mechanical characteristics, and soldering parameters of the P1900MEL ensure its applicability and reliability in various application scenarios, making it the preferred solution for your equipment's overvoltage protection.