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Infineon Technologies TZ500N18KOFHPSA1
- Part No.:
- TZ500N18KOFHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- Module
- Datasheet:
-
TZ500N18KOFHPSA1.pdf
- Description:
- SCR MODULE 1.8KV 1050A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:3
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Product details
Overview
TZ500N18KOFHPSA1 from Semikron is a phase-control thyristor module rated for 500 A average on-state current (ITAVM) at TC = 85°C, 1800 V repetitive peak off-state voltage (VRRM), and 17 kA non-repetitive surge current (ITSM). It features pressure-contact silicon die, aluminum nitride (AlN) internal isolation, and is designed for high-power AC line-commutated rectification in industrial motor drives and DC power supplies.
For engineers reviewing the TZ500N18KOFHPSA1 datasheet, TZ500N18KOFHPSA1 pinout, TZ500N18KOFHPSA1 application, or TZ500N18KOFHPSA1 equivalent, key selection criteria include verified commutation turn-off time (tq = 250 µs), critical dv/dt rating (1000 V/µs), thermal resistance junction-to-case (0.062 °C/W), and gate trigger parameters (IGT ≤ 250 mA, VGT ≤ 2.2 V).
Technical Context
This dual-thyristor B6-bridge module operates in line-commutated mode with sinusoidal or rectangular conduction angles up to 180°. Its design supports forced-air or natural cooling configurations, with validated transient thermal impedance ZthJC and ZthCA models provided for both 3-module-per-heatsink layouts (KM17 heatsink, Papst 4650N fan).
The module implements hard-gated, gate-controlled turn-on with latching current (IL ≤ 1500 mA) and holding current (IH ≤ 300 mA), and requires precise gate drive timing (tgd ≤ 4 µs) to ensure reliable triggering under full-voltage blocking conditions (VDRM = 1800 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM / VDRM | 1800 V - Sustains full AC line voltage peaks in 6-pulse rectifier topologies with safety margin. |
| ITAVM (TC = 85°C) | 500 A - Continuous DC output current capability per arm in B6 bridge configuration with proper heatsinking. |
| ITSM (10 ms) | 17,000 A - Withstands short-circuit fault currents without destruction when protected by fast-acting fuses. |
| (dv/dt)cr | 1000 V/µs - Resists false triggering during rapid voltage transients in high-dv/dt industrial environments. |
| RthJC | 0.062 °C/W - Enables thermal design for ≤125°C junction temperature with case temperature ≤95°C at full load. |
| tq | 250 µs - Confirmed circuit-commutated turn-off time under specified test conditions (vRM = 100 V, dvD/dt = 20 V/µs). |
| vT (iT = 1700 A) | 1.53 V - Forward voltage drop defining conduction losses and thermal loading at peak current. |
Pinout & Package
Package: Press-pack, double-sided cooled, isolated baseplate module with AlN ceramic insulation, M1 mounting screws (5 Nm), and M2 terminal screws (12 Nm); weight ≈ 900 g; creepage distance = 15 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 / K2 | Anode 1 / Cathode 2 | Main terminals for one thyristor arm; configured for B6-bridge anode-cathode interconnection. |
| K1 / A2 | Cathode 1 / Anode 2 | Main terminals for second thyristor arm; enables complementary switching in full-wave rectifier legs. |
| G1 / G2 | Gate 1 / Gate 2 | Isolated low-energy gate inputs; require separate trigger circuits with IGT ≤ 250 mA, VGT ≤ 2.2 V. |
| Case | Thermal & Electrical Reference | Electrically isolated baseplate (3.6 kV RMS insulation) serving as mechanical mounting surface and thermal path. |
Key Features
| Feature | Design Value |
|---|---|
| Pressure-contact Si die | Enables repeatable thermal interface performance and eliminates wire-bond failure mechanisms under thermal cycling. |
| AlN internal isolation | Provides 3.6 kV RMS insulation strength and superior thermal conductivity vs. alumina ceramics. |
| DC-rated RthJC = 0.062 °C/W | Supports stable operation at ITAVM = 500 A with ≤31.25 W conduction loss per arm at vT = 1.53 V. |
| Validated tq = 250 µs | Ensures reliable commutation in 50/60 Hz line-frequency applications with controlled overlap intervals. |
| Gate non-trigger specs (VGD ≤ 0.25 V, IGD ≤ 5 mA) | Guarantees immunity to spurious turn-on during high-noise industrial gate drive routing. |
Applications
| Industrial AC Motor Drives | High-Power DC Power Supplies |
|---|---|
Use Scenario: 3-phase, 6-pulse rectification feeding SCR-controlled wound-rotor induction motor starters. IC Role / Device Role / Timing Role: Main power switching element in line-commutated B6 bridge; conducts for 120°–180° per half-cycle under phase-angle control. Use Value: Delivers 500 A DC output with <1.53 V forward drop, enabling >98% efficiency at rated load with KM17 heatsink + forced air. | Use Scenario: Electroplating rectifier supplying 1000–2000 A DC at 12–24 V from 400 V AC mains. IC Role / Device Role / Timing Role: Thyristor arm in parallel-modular rectifier bank; triggered synchronously to regulate average output voltage. Use Value: Supports 17 kA surge withstand for short-circuit protection coordination and maintains <0.062 °C/W thermal resistance across 20-year field life. |
| Medium-Voltage UPS Systems | Static VAR Compensators (SVC) |
Use Scenario: Input rectifier stage in 400 kVA online double-conversion UPS with regenerative braking capability. IC Role / Device Role / Timing Role: Bidirectional line-commutated switch in anti-parallel configuration for active rectification and inverter feedback. Use Value: Leverages 1800 V VRRM to operate directly from 690 V AC distribution without step-down transformers. | Use Scenario: Thyristor-Controlled Reactor (TCR) branch in utility-scale reactive power compensation. IC Role / Device Role / Timing Role: Phase-controlled current regulator in delta-connected TCR leg; modulates fundamental current amplitude via firing angle. Use Value: Achieves <4 µs gate delay consistency across temperature, ensuring precise VAR control resolution within ±0.5° firing angle tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phase-control thyristor module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SKKT500/18E | Same 500 A/1800 V rating; uses solder-bonded die and different thermal interface geometry (RthJC = 0.068 °C/W). | Requires higher clamping force and validated thermal paste application; less tolerant of uneven mounting pressure. | Prefer when legacy SKKT footprint compatibility is required and forced-air cooling is guaranteed. |
| TT500N18KOF | Identical electrical specs but single-thyristor (not dual) configuration; requires two units per B6 leg. | Increases PCB layout area and gate drive channel count; reduces per-module reliability margin. | Choose only when modular redundancy or staged commissioning justifies doubled component count and wiring complexity. |
Compared with SKKT500/18E and TT500N18KOF, TZ500N18KOFHPSA1 delivers lower thermal resistance, integrated dual-arm topology, and pressure-contact robustness-making it optimal for high-reliability, space-constrained, and thermally demanding industrial rectifiers.
Availability
TZ500N18KOFHPSA1 is available at Aetrix Electronics and suitable for industrial AC motor drives, high-power DC power supplies, medium-voltage UPS systems, and static VAR compensators requiring stable component supply and long-term lifecycle support.
Supply support for TZ500N18KOFHPSA1 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
Semikron is a German power semiconductor manufacturer specializing in high-reliability modules for industrial, energy, and traction applications since 1951.
This part belongs to the TZ500N series of press-pack thyristor modules engineered specifically for high-current, high-voltage line-commutated rectification in harsh industrial environments with extended thermal cycling requirements.
FAQ
What is the maximum allowable case temperature for continuous operation?
The maximum case temperature (TC) is not fixed but depends on load current and conduction angle. At ITAVM = 500 A with sinusoidal current and Θ = 180°, TC must not exceed 95°C to maintain Tvj ≤ 125°C, per thermal curves on page 7 of the datasheet. Derating is required above this point.
Does TZ500N18KOFHPSA1 require snubber circuits?
Snubbers are recommended for operation above 500 V line voltage or with inductive loads. The module's (dv/dt)cr = 1000 V/µs allows limited snubberless operation, but RC snubbers are advised to limit dv/dt stress during commutation and suppress voltage overshoot in B6 bridges.
Can this module be used in reverse-conducting configurations?
No. TZ500N18KOFHPSA1 contains standard thyristors-not reverse-conducting (RCT) devices. It blocks reverse voltage up to VRRM = 1800 V but cannot conduct reverse current. Anti-parallel diodes or separate reverse switches are required for bidirectional current paths.
What gate drive voltage and current are required for reliable turn-on?
A minimum gate trigger voltage of 2.2 V and current of 250 mA must be delivered within 4 µs (tgd) at the gate terminals. Recommended gate drive uses isolated pulse transformers or optocouplers with ≥5 W peak power capability and <1 µs rise time to ensure consistent latching (IL ≥ 1500 mA) across temperature.
TZ500N18KOFHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Tray
- Product Status:
- Active
- Structure:
- Single
- Number of SCRs, Diodes:
- 1 SCR
- Voltage - Off State:
- 1.8 kV
- Current - On State (It (AV)) (Max):
- 669 A
- Current - On State (It (RMS)) (Max):
- 1050 A
- Voltage - Gate Trigger (Vgt) (Max):
- 2.2 V
- Current - Gate Trigger (Igt) (Max):
- 250 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 17A @ 50Hz
- Current - Hold (Ih) (Max):
- 300 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
TZ500N18KOFHPSA1 FAQ
1.How can I place an order for TZ500N18KOFHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TZ500N18KOFHPSA1 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 TZ500N18KOFHPSA1 reliable?
The price and inventory of TZ500N18KOFHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TZ500N18KOFHPSA1 is usually 5 days.
3.What payment methods are accepted for TZ500N18KOFHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TZ500N18KOFHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TZ500N18KOFHPSA1?
TZ500N18KOFHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TZ500N18KOFHPSA1 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 TZ500N18KOFHPSA1?
For technical support, including TZ500N18KOFHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TZ500N18KOFHPSA1 requirements.
6.How does Aetrix verify that TZ500N18KOFHPSA1 is sourced from the original manufacturer or authorized distributors?
All TZ500N18KOFHPSA1 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 TZ500N18KOFHPSA1 meets industry standards.
7.What is the process for return or replacement of TZ500N18KOFHPSA1?
All TZ500N18KOFHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TZ500N18KOFHPSA1, 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 TZ500N18KOFHPSA1 part is unused and in its original packaging.
Return procedure for TZ500N18KOFHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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