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Infineon Technologies T1503NH80TOHXOSA1
- Part No.:
- T1503NH80TOHXOSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs
- Package:
- TO-200AF
- Datasheet:
-
T1503NH80TOHXOSA1.pdf
- Description:
- SCR 8KV 2770A T15040L-1
- Quantity:
- Payment:
- Shipping:
Inventory:4,627
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Product details
Overview
T1503NH80TOHXOSA1 from Infineon Technologies is a light-triggered phase control thyristor designed for high-power crowbar and pulsed power applications. It features 8000 V reverse blocking voltage (VRRM), 1770 A average on-state current (ITAVM) at TC = 85°C, 57 kA surge current capability (ITSM), and extreme di/dt rating of 5000 A/µs. Its pressure-contact silicon pellet construction supports direct optical triggering with integrated break-over diode protection.
For engineers reviewing the T1503NH80TOHXOSA1 datasheet, T1503NH80TOHXOSA1 pinout, T1503NH80TOHXOSA1 application, or T1503NH80TOHXOSA1 equivalent, key selection criteria include verified 8000 V VRRM, clamping force range (63–91 kN), two-sided thermal resistance (6.0 K/kW), gate trigger light power limit (40 mW), and transient thermal impedance profile for crowbar duty cycling.
Technical Context
This thyristor operates as a line-commutated, light-triggered switching device with full 50/60 Hz blocking over –40°C to +120°C junction temperature. Its protective breakover voltage (VBO ≥ 7500 V) ensures reliable overvoltage clamping without external crowbar circuitry.
The device uses a pressure-contact Si-pellet structure with anode/cathode dual-side cooling interface and gate terminal accessible via optical fiber coupling. Critical parameters-5000 A/µs (diT/dt)cr and 2000 V/µs (dvD/dt)cr-enable fast turn-on under high di/dt stress and robust off-state voltage transients in HVDC and pulsed power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 8000 V - maximum repetitive reverse voltage; defines safe blocking margin in HVAC/HVDC crowbar circuits |
| ITAVM @ TC=85°C | 1770 A - continuous RMS conduction rating; sets thermal design basis for heatsink sizing with two-sided cooling |
| ITSM @ tP=10 ms | 57000 A - non-repetitive surge current; determines short-circuit withstand capability in fault-clearing applications |
| (diT/dt)cr | 5000 A/µs - minimum required rate of rise for reliable turn-on; enables use in high-dI/dt pulsed loads |
| RthJC (two-sided) | 6.0 K/kW - junction-to-case thermal resistance; used to calculate ΔTj under steady-state conduction loss |
| vT @ iT=4000 A | ≤3.0 V - on-state voltage drop; directly impacts conduction loss (Pcond ≈ iT × vT) at rated current |
| Clamping Force | 63–91 kN - mechanical contact load range; ensures stable thermal and electrical interface between Si pellet and heatsink |
Pinout & Package
Package: Pressure-contact, disc-type thyristor with double-sided cooling interface. Diameter: 151.5 mm; Contact diameter: 100 mm; Height: 40 mm; Weight: ~3200 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (1) | Main power terminal (high-side current path) | Carries full load current during conduction; requires high-force mechanical mounting to heatsink |
| Kathode (2) | Main power terminal (low-side current path) | Completes main conduction loop; thermally coupled to heatsink surface opposite anode |
| Gate (4.1) | Optical trigger input | Accepts light pulse (≤40 mW) to initiate conduction; no electrical gate connection required |
Key Features
| Feature | Design Value |
|---|---|
| Light-triggered operation | Eliminates electrical gate isolation components and enables EMI-immune triggering in high-noise HV environments |
| Integrated break-over diode | Provides intrinsic overvoltage protection without external snubbers or crowbar controllers |
| Two-sided cooling interface | Enables 6.0 K/kW thermal resistance and >2770 A RMS current handling with symmetric heatsink mounting |
| High DC blocking stability | Maintains ≥7500 V VBO across –40°C to +120°C, supporting unregulated DC bus protection |
| Extreme di/dt capability | 5000 A/µs critical turn-on rate allows direct switching of highly inductive pulsed loads |
Applications
| Crowbar Protection Systems | Pulsed Power Supplies |
|---|---|
Use Scenario: Fast-acting overvoltage protection in particle accelerator magnet supplies or fusion plasma control systems. IC Role / Device Role / Timing Role: Thyristor acts as a triggered short-circuit switch to divert fault energy and protect downstream converters. Use Value: 57 kA ITSM and 5000 A/µs di/dt enable sub-millisecond fault clearing without upstream breaker tripping. | Use Scenario: High-current discharge switching in capacitor bank energization for electromagnetic forming or laser pumping. IC Role / Device Role / Timing Role: Main conduction switch triggered by optical pulse to release stored energy into load. Use Value: 8000 V VRRM and 1770 A ITAVM support multi-kilojoule pulse delivery with low conduction loss (≤3.0 V). |
| High-Voltage DC Circuit Breakers | Static VAR Compensator (SVC) Bypass |
Use Scenario: Current-interruption assist in hybrid HVDC breakers where forced commutation is combined with natural current zero crossing. IC Role / Device Role / Timing Role: Bidirectional crowbar element that clamps transient overvoltages during current transfer sequences. Use Value: 2000 V/µs (dvD/dt)cr and 7500 V VBO ensure stable blocking during rapid voltage transients in multi-level converter topologies. | Use Scenario: Redundant bypass path for thyristor-controlled reactors (TCRs) during maintenance or failure events in grid-scale reactive power compensation. IC Role / Device Role / Timing Role: High-current shunt switch activated optically to maintain system continuity during TCR isolation. Use Value: 63–91 kN clamping force and 100 mm contact diameter guarantee low-resistance, low-inductance bypass path at 2+ kA continuous. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar light-triggered thyristor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TT1503N80KOF | Same VRRM (8000 V), lower ITAVM (1500 A @ TC=85°C), identical optical gate interface | Suitable for lower-duty-cycle crowbar applications with reduced thermal budget | Select when peak conduction time is <10% duty and heatsink capacity is constrained |
| T1503NH80TOHXOSA2 | Identical specs except QR class upgraded (4-digit → 5-digit code); same thermal/mechanical envelope | No functional difference; reflects later production batch with tighter Qr tolerance (15 mAs max vs. 15.2 mAs) | Select for new designs requiring latest revision traceability and marginally improved recovery consistency |
Compared with TT1503N80KOF, T1503NH80TOHXOSA1 delivers +18% average current capacity and better thermal headroom; versus T1503NH80TOHXOSA2, it offers identical performance but earlier production traceability-critical for legacy system maintenance.
Availability
T1503NH80TOHXOSA1 is available at Aetrix Electronics and suitable for crowbar protection systems, pulsed power supplies, HVDC circuit breakers, and static VAR compensator bypass applications requiring stable component supply across long-lifecycle industrial programs.
Supply support for T1503NH80TOHXOSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power electronics, automotive ICs, and industrial control solutions, with global manufacturing and R&D infrastructure.
This part belongs to Infineon's high-power bipolar thyristor product line, engineered specifically for ultra-high-voltage, high-current protection and energy-switching applications in utility, industrial, and scientific equipment.
FAQ
What is the gate trigger mechanism for T1503NH80TOHXOSA1?
The device uses optical triggering: a light pulse (≤40 mW, 50–1000 nm spectrum) incident on the integrated gate photodiode initiates conduction. No electrical gate connection exists-triggering is fully isolated, eliminating ground-loop risks and enabling direct integration into high-voltage floating systems.
Can T1503NH80TOHXOSA1 be mounted with single-sided cooling?
Yes, but with derating: RthJC increases to 13.8 K/kW (cathode-side only) or 10.6 K/kW (anode-side only). This reduces maximum ITAVM to ~1200 A at TC = 85°C. Two-sided cooling is required to achieve the full 1770 A rating and maintain junction temperature ≤120°C under continuous load.
What does the "H" in the 5th letter of the type designation indicate?
The "H" denotes the protective breakover voltage class: VBO ≥ 7500 V (minimum) at Tvj = 25°C to Tvj max. This distinguishes it from "G" (≥7000 V) or "I" (≥8000 V) variants and confirms suitability for 8000 V-class system overvoltage protection without external clamping.
Is the clamping force range (63–91 kN) applied per side or total?
The clamping force is total compressive load applied across the entire device stack-i.e., the sum of mechanical force exerted by both anode and cathode side mounting hardware. It must be uniformly distributed over the 100 mm contact diameter to avoid localized hot spots and ensure consistent RthJC and vT performance.
T1503NH80TOHXOSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-200AF
- Packaging:
- Tray
- Product Status:
- Active
- Voltage - Off State:
- 8 kV
- Voltage - Gate Trigger (Vgt) (Max):
- -
- Current - Gate Trigger (Igt) (Max):
- -
- Voltage - On State (Vtm) (Max):
- 3 V
- Current - On State (It (AV)) (Max):
- 2560 A
- Current - On State (It (RMS)) (Max):
- 2770 A
- Current - Hold (Ih) (Max):
- 100 mA
- Current - Off State (Max):
- -
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 57000A @ 50Hz
- SCR Type:
- Standard Recovery
- Operating Temperature:
- 120°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- BG-T15040L-1
T1503NH80TOHXOSA1 FAQ
1.How can I place an order for T1503NH80TOHXOSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for T1503NH80TOHXOSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for T1503NH80TOHXOSA1 reliable?
The price and inventory of T1503NH80TOHXOSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1503NH80TOHXOSA1 is usually 5 days.
3.What payment methods are accepted for T1503NH80TOHXOSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1503NH80TOHXOSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T1503NH80TOHXOSA1?
T1503NH80TOHXOSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T1503NH80TOHXOSA1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for T1503NH80TOHXOSA1?
For technical support, including T1503NH80TOHXOSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1503NH80TOHXOSA1 requirements.
6.How does Aetrix verify that T1503NH80TOHXOSA1 is sourced from the original manufacturer or authorized distributors?
All T1503NH80TOHXOSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that T1503NH80TOHXOSA1 meets industry standards.
7.What is the process for return or replacement of T1503NH80TOHXOSA1?
All T1503NH80TOHXOSA1 units undergo pre-shipment inspection (PSI). If there is an issue with T1503NH80TOHXOSA1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The T1503NH80TOHXOSA1 part is unused and in its original packaging.
Return procedure for T1503NH80TOHXOSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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