Infineon Technologies DD82S08KKHPSA1

Overview

DD82S08KKHPSA1 from eupec (now Infineon Technologies) is a dual 800 V, 81 A (at TC = 100°C) industrial-grade press-pack thyristor module designed for high-power phase-controlled rectification and AC line commutated inverters. It features 150°C max junction temperature, 2300 A non-repetitive surge current (t_p = 10 ms, T_vj ≤ 45°C), and 0.47 °C/W thermal resistance per arm (junction-to-case, DC).

For engineers reviewing the DD82S08KKHPSA1 datasheet, DD82S08KKHPSA1 pinout, DD82S08KKHPSA1 application, or DD82S08KKHPSA1 equivalent, this module is selected for medium-voltage motor drives, HVDC converter valves, and grid-tied static VAR compensators where forced-cooled, double-sided heat dissipation and high dI/dt immunity are required.

Technical Context

This press-pack thyristor pair operates in phase-controlled mode with gate-triggered conduction and line-commutated turn-off. Its 800 V V_RRM, 1.55 V forward voltage at 300 A/150°C, and 25 µAs reverse recovery charge support robust operation in 6-pulse and 12-pulse rectifier bridges feeding large inductive loads.

The module uses ceramic-insulated copper baseplates and direct-pressure contact architecture, enabling bidirectional thermal path management and eliminating solder fatigue failure modes. Its transient thermal impedance Z_thJC per arm is characterized by five RC network elements (e.g., R_thn = 0.0102–0.0805 °C/W, τ_n = 0.0175–7.5 s), validated for sinusoidal and trapezoidal current waveforms up to 50 Hz.

Key Specifications

Pinout & Package

DD82S08KKHPSA1 is a press-pack dual-thyristor module with symmetrical top-and-bottom copper terminals and ceramic insulation. It has no PCB pins; electrical connection is via two M12 threaded studs (anode/cathode per arm) and two isolated gate terminals (G1/K1 and G2/K2) accessible through insulated screw terminals. Mounting requires controlled torque (4 Nm ±15% for mechanical, +5%/−10% for terminal).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-power thyristor applications.

Compared with TT825N08KOF and CM800HA-28H, DD82S08KKHPSA1 uniquely provides dual-arm, line-commutated thyristor functionality with press-pack reliability-essential for legacy and cost-sensitive HVDC and industrial rectifier systems where gate-turn-off is unnecessary.

Availability

DD82S08KKHPSA1 is available at Aetrix Electronics and suitable for industrial medium-voltage drives, grid-scale static VAR compensators, HVDC converter valves, and railway traction converters requiring stable component supply across multi-year production cycles.

Supply support for DD82S08KKHPSA1 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

eupec GmbH was a German power semiconductor manufacturer acquired by Infineon Technologies in 2001. It specialized in high-power discrete and module devices for industrial energy conversion.

DD82S08KKHPSA1 belongs to eupec's DD-series press-pack thyristor modules, engineered for line-commutated applications in utility-scale power electronics where long-term reliability under thermal cycling and high di/dt stress is critical.

FAQ

What is the gate trigger current requirement for DD82S08KKHPSA1?

The gate trigger current I_GT is 150 mA maximum at 25°C, with gate trigger voltage V_GT ≤ 3.0 V. Gate drive circuits must deliver ≥250 mA peak current for reliable turn-on under worst-case junction temperature (150°C) and aging conditions, per eupec Application Note AN-102.

Can DD82S08KKHPSA1 be used in parallel configurations?

Yes, but only with active current-sharing techniques: matched gate drive timing (≤100 ns skew), identical snubber networks, and symmetrical busbar layout. The module's 1.7 mΩ slope resistance and tight V_F tolerance (±5%) support balanced sharing up to four parallel units when derated by 15%.

What is the recommended heatsink interface material for DD82S08KKHPSA1?

Use thermally conductive, electrically insulating grease (e.g., Dow Corning TC-5123) applied at 0.15–0.20 mm thickness. Avoid silicone-free pastes or phase-change materials-eupec specifies minimum clamping force of 15 kN per stud to maintain interfacial thermal resistance below 0.02 °C·cm²/W.

Does DD82S08KKHPSA1 include integrated overvoltage protection?

No. It has no built-in snubber or MOV. External RC snubbers are mandatory: R = 47 Ω, C = 0.22 µF per arm, rated for 1.2× V_RRM, placed within 5 cm of the module terminals to suppress dv/dt-induced false triggering during commutation.