Alpha & Omega Semiconductor Inc. AOK60B65H1

Overview

AOK60B65H1 from Alpha & Omega Semiconductor is a 650V, 60A trench-gate field-stop IGBT with integrated soft-fast anti-parallel diode in TO-247 package, rated for 180A pulsed collector current and 120A continuous at TC=25°C, used in high-frequency motor drives and solar inverters.

For engineers reviewing the AOK60B65H1 datasheet, pinout, applications, or equivalent options, key selection criteria include V_CE(sat) = 1.88 V (T_J = 25°C), t_rr = 288 ns (T_J = 25°C), E_off = 1.17 mJ, short-circuit withstand time of 5 µs, and R_θJC = 0.3°C/W for thermal design.

Technical Context

This IGBT employs Alpha's αIGBT technology with field-stop trench gate structure to achieve low conduction loss and fast, soft switching. Its integrated diode features controlled reverse recovery (t_rr = 288 ns, Q_rr = 1.2 mC) and softness factor >10, minimizing voltage overshoot and EMI.

The device supports high dI/dt control (200 A/ms) and operates up to T_J = 175°C with robust short-circuit ruggedness (386 A, 5 µs, V_GE = 15 V). Gate threshold voltage (V_GE(th)) ranges from 4.8 V to 10 V across temperature, enabling stable turn-on under varying thermal conditions.

Key Specifications

Pinout & Package

TO-247 package with isolated mounting hole, 3-pin configuration (Gate, Collector, Emitter), standard lead finish, maximum lead temperature 250°C for 5 s at 1/8" from case.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar IGBT switching applications.

Compared with IXGN60N60C3 and IKP60N65ES5, the AOK60B65H1 delivers balanced trade-offs: lower V_CE(sat) than IXGN60N60C3, softer diode recovery than IKP60N65ES5, and optimized gate charge for robust 20 kHz operation in space-constrained motor drives and solar inverters.

Availability

AOK60B65H1 is available at Aetrix Electronics and suitable for welding machines, solar inverters, and motor drives requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial production programs.

Supply support for AOK60B65H1 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

Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-efficiency MOSFETs, IGBTs, and power ICs for computing, consumer, industrial, and automotive markets.

The AOK60B65H1 belongs to AOS's Alpha IGBT™ family, designed specifically for high-frequency, high-reliability inverter applications where low switching loss, soft diode recovery, and short-circuit ruggedness are essential.

FAQ

What is the maximum continuous collector current rating for AOK60B65H1 at case temperature 100°C?

The AOK60B65H1 is rated for 60 A continuous collector current at T_C = 100°C, as specified in its Absolute Maximum Ratings table. This value reflects thermal limits under sustained conduction, and must be applied with appropriate heatsinking to maintain junction temperature below 175°C. Derating curves in the datasheet show 120 A at T_C = 25°C and 27 A at T_C = 100°C for continuous operation - the 60 A rating corresponds to the device's safe operating area under typical industrial ambient conditions with forced-air cooling.

Does AOK60B65H1 include an integrated diode, and what are its key recovery characteristics?

Yes, the AOK60B65H1 integrates a soft and fast recovery anti-parallel diode. At T_J = 25°C, I_F = 60 A, and dI/dt = 200 A/ms, it achieves t_rr = 288 ns, Q_rr = 1.2 mC, and I_rm = 7.8 A. The diode exhibits soft recovery behavior (softness factor >10), confirmed by normalized reverse recovery waveforms, which suppresses voltage overshoot and reduces EMI generation in hard-switched topologies.

What is the short-circuit withstand capability of AOK60B65H1, and under what test conditions is it specified?

The AOK60B65H1 supports short-circuit operation for up to 5 µs under the conditions: V_GE = 15 V, V_CC ≤ 300 V, and T_J ≤ 175°C. It can sustain I_C(SC) = 386 A during this interval. This rating assumes gate drive remains active and junction temperature is monitored - the device is not intended for indefinite short-circuit operation. Layout and gate drive design must ensure detection and shutdown within this window to prevent failure.

How does the gate threshold voltage (V_GE(th)) of AOK60B65H1 vary with temperature, and why does this matter for system design?

The AOK60B65H1 has a V_GE(th) range of 4.8 V (min) to 10 V (max) across T_J = 25–175°C. This positive temperature coefficient improves current sharing in paralleled IGBTs and prevents thermal runaway. For gate drive design, it means the driver must deliver ≥15 V to ensure full enhancement across the full temperature range while staying within the ±30 V absolute maximum rating - underscoring the need for stable, well-regulated gate voltage.

What thermal resistance values apply to AOK60B65H1, and how are they used in heatsink selection?

The AOK60B65H1 specifies R_θJC = 0.3°C/W for the IGBT die and R_θJC = 1.0°C/W for the integrated diode. These junction-to-case values are used with measured or simulated case temperature to calculate peak junction temperature: T_J = T_C + P_DM × R_θJC. For heatsink sizing, R_θCA (case-to-ambient) must be selected so that T_J remains ≤175°C under worst-case power dissipation - including both conduction (I_C² × R_CE(on)) and switching (f_SW × E_total) losses.