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Product Detailed Parameters
- Description：IC MOTOR DRIVER
- Series：-
- Mfr：onsemi
- Package：Tube,Tube
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：-
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
Download product information
Overview
The STK621-521-E is a three-phase inverter hybrid integrated circuit manufactured by onsemi. It belongs to the Motor / Motion / Ignition Controllers & Drivers product category and is classified under PMIC - Power Management ICs. The component is designed for driving three-phase motors and features an integrated inverter topology. It is supplied in a tube package with a factory pack quantity of eight units. The device is marked as End-of-Life (EOL) status.
Feature Summary
- Integrated three-phase inverter hybrid IC architecture
- Designed for motor drive and motion control applications
Applications
- Three-phase motor drive systems
- Motion control circuits
- Ignition controller drivers
Procurement Notes
This component is officially designated as End-of-Life (EOL) by the manufacturer. Availability is restricted, and sourcing may require verification through authorized distributors or secondary markets. Buyers should confirm current stock status and authenticity carefully, as supply chain stability is not guaranteed for discontinued parts. Compliance documentation such as RoHS material composition declarations remains available for reference.
Selection Notes
Engineers selecting this part must account for its discontinued status when designing new products. Long-term production viability is not assured. Alternative solutions within the same family or newer generations should be evaluated for future-proofing. Design-in decisions should prioritize components with confirmed active manufacturing status to mitigate supply risks during mass production phases.
Part Context
The STK621 series represents a line of hybrid integrated circuits from onsemi, formerly associated with Hitachi Chemical Co., Ltd. prior to corporate restructuring. These devices combine power switching elements with control logic in a single package. The STK621-521-E specifically targets industrial and automotive motor control applications requiring robust three-phase inversion capabilities.
Replacement Considerations
Publicly confirmed substitute part numbers are not explicitly listed in the provided source data. Users should consult onsemi's official obsolescence notices or distributor cross-reference tools for verified alternatives.
