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Infineon Technologies TT61N12KOFKHPSA1
- Part No.:
- TT61N12KOFKHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- SCRs - Modules
- Package:
- Module
- Datasheet:
-
TT61N12KOFKHPSA1.pdf
- Description:
- SCR MODULE 1.2KV 120A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:7,302
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Product details
Overview
TT61N12KOFKHPSA1 from Infineon Technologies is a phase-control thyristor module rated for 1200 V repetitive peak off-state voltage (VDRM/VRRM), 120 A RMS on-state current (ITRMSM), and 60 A average on-state current at TC = 85°C (ITAVM). It features a 150 A/µs critical rate of rise of on-state current (diT/dt)cr and 1000 V/µs critical off-state voltage rise rate (dvD/dt)cr, designed for industrial AC power control in medium-power motor drives and heating systems.
For engineers reviewing the TT61N12KOFKHPSA1 datasheet, TT61N12KOFKHPSA1 pinout, TT61N12KOFKHPSA1 application, or TT61N12KOFKHPSA1 equivalent, key selection criteria include its 125°C maximum junction temperature, 0.26 °C/W junction-to-case thermal resistance per module, UL E83336 listing, pressure-contact Si-pellet construction, and compatibility with forced-air-cooled KM14 heatsinks in B6 six-pulse bridge configurations.
Technical Context
This thyristor module implements a dual-arm, anti-parallel configuration for full-wave AC phase control. Its gate trigger current (IGT ≤ 120 mA) and voltage (VGT ≤ 1.4 V) are specified at 25°C with 6 V anode-cathode voltage, supporting standard pulse-triggered firing circuits. The 120 µs typical circuit-commutated turn-off time (tq) enables operation up to 50 Hz line frequency with adequate commutation margin.
Thermal performance is defined by analytical transient impedance models (ZthJC, ZthCA) for both sinusoidal and rectangular conduction angles (0°–180°). Natural cooling supports up to 76 A ITAVM at Θ = 180°, while forced cooling with Papst 4650N fans extends capability to 120 A RMS under identical conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 1200 V - Maximum repetitive blocking voltage in forward/reverse direction, defining AC mains isolation rating for 690 VAC systems. |
| ITRMSM | 120 A - Continuous RMS current handling per arm, determining heat sink sizing for steady-state conduction losses. |
| ITAVM | 60 A @ TC = 85°C - Average on-state current limit under DC or full-conduction conditions, used for thermal design at rated case temperature. |
| (diT/dt)cr | 150 A/µs - Minimum required commutation di/dt to avoid false turn-on during high dv/dt transients. |
| (dvD/dt)cr | 1000 V/µs - Critical off-state voltage rise rate threshold; exceeding this risks spurious triggering without gate signal. |
| RthJC | 0.26 °C/W per module - Junction-to-case thermal resistance under DC conduction, essential for calculating die temperature rise. |
| tq | 120 µs typ. - Circuit-commutated turn-off time at Tvj max, setting minimum commutation interval in phase-controlled rectifiers. |
Pinout & Package
TT61N12KOFKHPSA1 uses a press-pack module package with isolated AlN ceramic baseplate, rated for 3.0 kV insulation test voltage (1 sec, 50 Hz). Mechanical mounting uses M1 screws (4 Nm ±15%) and M2 terminals (4 Nm ±10%). Control terminals conform to DIN 46244 A (2.8 × 0.8 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 / K2 | Anode 1 / Cathode 2 | Main terminals of first thyristor arm; connected in anti-parallel with A2/K1 for full-wave AC switching. |
| A2 / K1 | Anode 2 / Cathode 1 | Main terminals of second thyristor arm; forms complementary path for bidirectional current flow in B2/B6 bridges. |
| G1 / K1 | Gate 1 / Cathode 1 | Control input for first thyristor; referenced to its cathode (K1); requires ≥1 A pulse for reliable latching (IL = 620 mA). |
| G2 / K2 | Gate 2 / Cathode 2 | Control input for second thyristor; referenced to its cathode (K2); independent triggering enables asymmetrical phase control. |
Key Features
| Feature | Design Value |
|---|---|
| Pressure-contact Si-pellet | Enables high-current density and low contact resistance without wire bonds; supports >1550 A non-repetitive surge (ITSM). |
| AlN internal isolation | Provides 3.0 kV RMS insulation strength and superior thermal conductivity vs. alumina, reducing RthCH to 0.08 °C/W per module. |
| UL E83336 listed | Confirms compliance with UL 1557 for solid-state relays and power controllers, enabling direct use in certified industrial equipment. |
| Transient thermal modeling | Supplied ZthJC/ZthCA analytical functions allow precise junction temperature prediction under arbitrary load profiles (sinusoidal/rectangular, variable Θ). |
Applications
| Industrial Motor Speed Control | Resistive Heating Control |
|---|---|
Use Scenario: Variable-speed control of 3-phase induction motors in HVAC blowers and conveyor systems using B6 six-pulse phase-angle control. IC Role / Device Role / Timing Role: Dual-arm thyristor module providing bidirectional AC switching per phase leg; synchronized gate pulses set firing angle for torque regulation. Use Value: Enables smooth 0–100% power delivery with <120 µs tq ensuring clean commutation at 50/60 Hz, minimizing harmonic distortion in motor currents. | Use Scenario: Precise temperature regulation in industrial ovens and furnaces via phase-fired AC power to resistive heating elements. IC Role / Device Role / Timing Role: High-current AC switch modulating RMS voltage applied to heater coils; gate timing determines effective power level. Use Value: 120 A RMS rating and 0.26 °C/W RthJC support continuous 30 kW operation with forced-air KM14 heatsinks, improving thermal stability over cycle life. |
| DC Power Supply Input Stage | Static VAR Compensator (SVC) |
Use Scenario: Input rectification stage in high-power DC supplies for electroplating and welding equipment using B2 two-pulse configuration. IC Role / Device Role / Timing Role: Thyristor pair conducting alternate half-cycles of AC input; phase control adjusts output DC voltage level. Use Value: 150 A/µs (diT/dt)cr prevents false turn-on during transformer inrush, while 1200 V VDRM accommodates 690 VAC line surges per IEC 61000-4-5. | Use Scenario: Reactive power compensation in medium-voltage distribution networks using thyristor-switched capacitor banks. IC Role / Device Role / Timing Role: Fast-switching AC valve controlling capacitor bank connection timing to cancel inductive VARs in real time. Use Value: 1000 V/µs (dvD/dt)cr ensures immunity to grid transients, and UL listing validates safe integration into utility-grade protection schemes. |
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 |
|---|---|---|---|
| TT61N12KOFPKPSA1 | Identical electrical specs but uses plastic housing instead of metal baseplate; RthJC = 0.30 °C/W (vs. 0.26 °C/W). | Limited to natural convection or low-power forced cooling; unsuitable for >90 A RMS sustained loads. | Select when cost sensitivity outweighs thermal performance; verify heatsink derating per ZthCA curves. |
| TT100N12KOFKHPSA1 | Higher 100 A ITAVM rating (TC = 85°C); same VDRM, RthJC = 0.20 °C/W; larger footprint and weight (220 g). | Supports higher continuous power in same thermal environment; requires revised mechanical layout and mounting torque (5.5 Nm). | Choose for future-proofing or margin expansion in new designs where space allows. |
Compared with TT61N12KOFPKPSA1, TT61N12KOFKHPSA1 delivers lower thermal resistance and higher reliability in forced-air systems; versus TT100N12KOFKHPSA1, it offers better cost-efficiency and compactness for 60–80 A average-load applications.
Availability
TT61N12KOFKHPSA1 is available at Aetrix Electronics and suitable for industrial motor speed control, resistive heating regulation, DC power supply input stages, and static VAR compensators requiring stable component supply across multi-year production cycles.
Supply support for TT61N12KOFKHPSA1 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 security solutions, with global manufacturing and R&D centers.
This part belongs to Infineon's BIP AC thyristor module product line, engineered for robust, high-reliability AC power control in harsh industrial environments including factory automation and energy infrastructure.
FAQ
What is the maximum allowable case temperature for continuous operation?
The maximum allowable case temperature (TC op) is +125°C, with storage temperature ranging from –40°C to +130°C. Operation above 125°C risks irreversible degradation of the AlN isolation layer and silicon die, and must be avoided even momentarily without derating.
Can TT61N12KOFKHPSA1 be used in single-phase applications?
Yes - it supports single-phase B2 two-pulse bridge configurations, delivering up to 120 A RMS output. Gate drive must be isolated per arm (G1/K1 and G2/K2), and heatsinking must account for asymmetric conduction angles per half-cycle.
What gate drive requirements ensure reliable turn-on?
Reliable latching requires ≥1 A peak gate current (iGM), ≥620 mA latching current (IL), and ≥1 A/µs diG/dt. Pulse width must exceed 20 µs, and gate voltage must reach ≥1.4 V (VGT max) at 6 V anode-cathode bias, per DIN IEC 747-6.
How does the pressure-contact construction affect long-term reliability?
Pressure-contact construction eliminates bond wires and solder joints, eliminating common failure modes like wire fatigue and intermetallic growth. Combined with AlN isolation and 125°C Tvj max, it enables >100,000 operating hours in continuous industrial duty cycles.
TT61N12KOFKHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Structure:
- Common Cathode - All SCRs
- Number of SCRs, Diodes:
- 2 SCRs
- Voltage - Off State:
- 1.2 kV
- Current - On State (It (AV)) (Max):
- 76 A
- Current - On State (It (RMS)) (Max):
- 120 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.4 V
- Current - Gate Trigger (Igt) (Max):
- 120 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 1550A @ 50Hz
- Current - Hold (Ih) (Max):
- 200 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
TT61N12KOFKHPSA1 FAQ
1.How can I place an order for TT61N12KOFKHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TT61N12KOFKHPSA1 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 TT61N12KOFKHPSA1 reliable?
The price and inventory of TT61N12KOFKHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TT61N12KOFKHPSA1 is usually 5 days.
3.What payment methods are accepted for TT61N12KOFKHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TT61N12KOFKHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TT61N12KOFKHPSA1?
TT61N12KOFKHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TT61N12KOFKHPSA1 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 TT61N12KOFKHPSA1?
For technical support, including TT61N12KOFKHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TT61N12KOFKHPSA1 requirements.
6.How does Aetrix verify that TT61N12KOFKHPSA1 is sourced from the original manufacturer or authorized distributors?
All TT61N12KOFKHPSA1 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 TT61N12KOFKHPSA1 meets industry standards.
7.What is the process for return or replacement of TT61N12KOFKHPSA1?
All TT61N12KOFKHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TT61N12KOFKHPSA1, 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 TT61N12KOFKHPSA1 part is unused and in its original packaging.
Return procedure for TT61N12KOFKHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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