Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94

Pangkalahatang-ideya ng Phase Control Thyristor

Isang phase control thyristor, madalas na tinutukoy bilang isang triac o SCR (Silicon Controlled Rectifier) sa ilang mga aplikasyon, ay isang semiconductor device na ginagamit para sa pagkontrol sa dami ng power na inihatid sa isang load sa pamamagitan ng pagsasaayos ng phase angle kung saan pinapayagan ang AC waveform na magsagawa. Ang paraan ng kontrol na ito ay kilala bilang phase angle control o simpleng phase control. Ang mga phase control thyristor ay malawakang ginagamit sa iba't ibang mga aplikasyon na nangangailangan ng tumpak na regulasyon ng kuryente, tulad ng mga dimmer ng ilaw, mga kontrol sa bilis ng motor, mga controller ng temperatura, at higit pa.

Mga Tampok ng Phase Control Thyristor

Phase Angle Control: Nagbibigay-daan sa pagsasaayos ng conduction point sa loob ng bawat kalahating cycle ng AC waveform, pagpapagana ng tumpak na kontrol sa average na kapangyarihan na inihatid sa load.

Mataas na Kahusayan: Gumagana nang may kaunting pagkalugi kapag nagsasagawa, pagbibigay ng mahusay na kontrol sa kuryente.

Bidirectional Conductivity (Mga Triac): Para sa mga AC application, triac ay maaaring magsagawa ng kasalukuyang sa parehong direksyon, ginagawa itong angkop para sa full-wave control ng mga AC load.

Unidirectional Conductivity (Mga SCR): Ang mga SCR ay nagsasagawa ng kasalukuyang sa isang direksyon lamang at kadalasang ginagamit para sa half-wave na kontrol ng AC o DC load..

Pag-trigger ng Gate: Ang pagpapadaloy ay nagsisimula kapag ang isang maliit na kasalukuyang ay inilapat sa terminal ng gate, nagbibigay-daan para sa madaling kontrol sa turn-on point.

Latching Current: Sa sandaling na-trigger, ang thyristor ay patuloy na nagsasagawa hanggang ang agos sa pamamagitan nito ay bumaba sa ibaba ng isang tiyak na antas na tinatawag na hawak na kasalukuyang.

Sensitivity sa Temperatura: Maaaring maapektuhan ang pagganap ng mga pagbabago sa temperatura, nangangailangan ng mga pagsasaalang-alang sa thermal management sa disenyo.

Boltahe at Kasalukuyang Rating: Magagamit sa isang malawak na hanay ng boltahe at kasalukuyang mga rating upang umangkop sa iba't ibang mga pangangailangan sa aplikasyon.

Pagbuo ng Ingay: Maaaring makabuo ng electromagnetic interference (EMI), nangangailangan ng wastong pag-filter at pananggalang sa mga sensitibong aplikasyon.

Mga Mekanismo ng Proteksyon: Kadalasan ay may kasamang built-in na proteksyon laban sa overvoltage at overcurrent na mga kondisyon upang mapangalagaan ang device at mga konektadong system.

(Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94)

Specification of Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94

The Stud Thyristor ST280S T0-94 is a high-power phase-controlled rectifier designed for robust changing and specific control in industrial applications. It features a stud-type TO-94 plan, enhanced for efficient thermal management and mechanical stability sought after settings. This thyristor is optimal for AC/DC power conversion, motor rate control, voltage policy, and heavy-duty rectification systems.

Secret electrical specs include a repetitive height off-state voltage (V_DRM) and reverse voltage (V_RRM) of approximately 1600V, guaranteeing trusted blocking of high voltages in both forward and reverse prejudice conditions. The average on-state current (I_TAV) is ranked at 280A, with a non-repetitive rise current (I_TSM) of 5600A, making it possible for handling of sudden overloads. Eviction trigger present (I_GT) is 200mA, paired with a gate trigger voltage (V_GT) ng 3V, guaranteeing regular and low-power triggering. The device maintains a low on-state voltage decrease (V_T) ng 1.6 V at ranked current, decreasing conduction losses.

Thermal efficiency is critical, with a junction-to-stud thermal resistance (R_thJS) ng 0.05 ° C/W, allowing reliable heat dissipation when placed on a heatsink. The operating junction temperature level array covers -40 ° C hanggang +125 ° C, guaranteeing functionality in severe conditions. Mechanical requirements include a stud diameter of 14mm, compatible with conventional installing equipment, and a recommended mounting torque of 25– 30 Nm to make certain safe mechanical and electric contact.

The ST280S T0-94 is developed with a silicon pellet hermetically sealed in a corrosion-resistant package, improving resilience in harsh settings. Applications consist of commercial electric motor drives, mga kasangkapan sa hinang, Mga sistema ng UPS, at mga materyales sa kuryente. Conformity with worldwide requirements such as RoHS and UL makes sure security and ecological compatibility. Developed for high dependability and long service life, this thyristor is matched for engineers needing precision, effectiveness, and ruggedness in high-current phase-controlled correction circuits.

(Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94)

Applications of Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94

The Stud Thyristor ST280S in a TO-94 bundle is a high-power semiconductor tool made for phase-controlled correction and changing applications. Its durable building, incorporated with innovative thyristor modern technology, makes it suitable for industrial and commercial systems needing accurate control of air conditioning power. The device includes a stud-type style for safe mechanical placing and efficient warmth dissipation, guaranteeing trustworthy efficiency under high-voltage and high-current problems. With a voltage score approximately 1600V and present handling abilities surpassing 280A, the ST280S excels in demanding settings.

A key application of the ST280S is in phase-controlled rectifiers, where it transforms AC to DC power in systems like electroplating, electrolysis, and industrial battery charging. Its ability to change conduction angles allows smooth control of result voltage and current, vital for processes requiring variable DC power. In motor speed control systems, the thyristor controls air conditioning electric motor drives by regulating power input, enhancing efficiency in machinery such as conveyor belts, crushers, and pumps.

The ST280S is also used in lighting control systems, including high-intensity discharge (NAGTATAGO) lamps and streetlight dimming. By phase-controlling the AC waveform, it changes light intensity while minimizing power waste. In welding equipment, the thyristor ensures secure arc generation by taking care of present flow, enhancing weld uniformity in both manual and computerized setups.

Higit pa rito, the device contributes in power payment systems, such as static VAR compensators (Mga SVC), where it stabilizes grid voltage and corrects power variable imbalances. Its rapid changing capability supports responsive power management in renewable resource inverters and commercial grids.

The TO-94 package uses toughness in harsh problems, with a threaded stud for straight heatsink installing, decreasing thermal resistance. This makes the ST280S ideal for high-temperature atmospheres like steel mills or mining procedures. Its tough style makes certain durability in applications entailing constant tons changes, voltage spikes, or mechanical stress.

In recap, the ST280S Stud Thyristor is a versatile service for phase-controlled power regulation across sectors, consisting of production, enerhiya, and transportation. Its mix of high power handling, thermal effectiveness, and accurate control makes it a critical part in systems requiring dependability and performance under hefty electric lots.

Profile ng Kumpanya

Luoyang Datang Energy Tech Co.Ltd(sales@pddn.com) ay isa sa mga nangungunang negosyo sa power electronics technology at power products, na ganap na kasangkot sa pagbuo ng mga solar inverters， mga transformer, mga regulator ng boltahe, mga kabinet ng pamamahagi, thyristors， mga module， mga diode， mga pampainit, at iba pang mga elektronikong kagamitan o semiconductor. Kami ay magiging nakatuon sa pagbibigay sa mga user ng mataas na kalidad, mahusay na mga produkto at mapagbigay na serbisyo.

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5 FAQs of Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94

The ST280S is a phase-controlled thyristor rectifier in a TO-94 package designed for high-efficiency power control applications. Below are five frequently asked questions about this component, answered concisely:

**1. What are the primary applications of the ST280S thyristor?**
The ST280S is used in phase-controlled rectification circuits, such as AC/DC motor speed control, dimming systems, industrial power supplies, and voltage regulation. It is ideal for systems requiring precise control of power delivery through gate-triggered conduction.

**2. What are the key electrical specifications of the ST280S?**
The ST280S has a maximum repetitive reverse voltage (V_RRM) of 800V and an average forward current (I_T(NG)) of 8A. Its surge current (I_TSM) is 80A, and the gate trigger current (I_GT) ranges from 5mA to 30mA, ensuring reliable switching under varying load conditions.

**3. How does thermal management affect the ST280S’s performance?**
The thyristor’s junction temperature must stay below 125°C to prevent damage. Proper heatsinking and airflow are critical. The TO-94 package supports efficient heat dissipation, but derating may be required in high-temperature environments.

**4. What precautions are needed for mounting the ST280S?**
Avoid mechanical stress on the leads during installation. Ensure the mounting surface is clean and flat for optimal thermal contact. Use insulating kits if required. The terminals should be soldered at 260°C for no more than 10 seconds to avoid package damage.

**5. How do I protect the ST280S from voltage spikes or switching transients?**
Incorporate snubber circuits (RC networks) across the anode and cathode to suppress voltage spikes. Ensure the device operates within its specified dv/dt (rate of voltage change) rating of 50V/µs. Overvoltage protection devices like MOVs (metal oxide varistors) can also safeguard against surges.

The ST280S combines rugged construction with precise control, making it suitable for demanding industrial applications. Always adhere to datasheet guidelines for optimal performance and longevity.

(Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94)