STK672-630C-E Equivalent & Substitute Parts

Part Overview

The STK672-630C-E is an obsolete unipolar stepper motor driver IC manufactured by onsemi, featuring fully integrated control and power stages with Power MOSFET technology. This 19-SIP package device provides half-bridge output configuration suitable for general-purpose motor control applications. Due to its obsolete product status, identifying compatible substitute parts is essential for system redesign, legacy product support, and procurement continuity.

Substiute Parts

STK672-630C-E

onsemiIn Stock: 1518STK672-630C-E Datasheet

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STK672-630CN-E

onsemiIn Stock: 1153STK672-630CN-E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the STK672-630C-E is determined by strict alignment of the following critical parameters:

Motor control function and architecture: Unipolar stepper motor driver with fully integrated control and power stages Output stage topology: Half-bridge configuration with dual output channels Electrical specifications: 2.2A output current, 4.75V–5.25V supply voltage, 0V–46V load voltage range Interface type: Parallel control interface Package compatibility: 19-SIP through-hole mounting Step resolution capability: 1 and 1/2 step modes

The STK672-630CN-E meets all these criteria and is classified as a direct substitute for the STK672-630C-E.

Parameter Comparison

Engineering Selection Recommendations

The STK672-630CN-E is a direct functional and electrical equivalent to the STK672-630C-E. Both devices share identical motor control specifications, electrical ratings, and package form factors. The primary distinction is the operating temperature range: the STK672-630C-E operates from -20°C to 105°C, while the STK672-630CN-E operates from 0°C to 105°C. Applications requiring sub-zero operation must retain the STK672-630C-E or identify alternative solutions outside this product family.

The STK672-630CN-E provides RoHS3 compliance, offering regulatory advantage for new designs and systems subject to environmental standards. Both parts maintain identical REACH and ECCN classifications, ensuring consistent export and supply chain compliance.

Frequently Asked Questions (FAQ)

Q: Can the STK672-630CN-E replace the STK672-630C-E in all applications?

A: The STK672-630CN-E is electrically and functionally equivalent for applications operating within the 0°C to 105°C temperature range. Applications requiring operation below 0°C must use the STK672-630C-E or evaluate alternative motor driver solutions.

Q: Are there pin-to-pin compatibility differences between these parts?

A: Both parts use the 19-SIP through-hole package with identical pinout and electrical interface. Direct socket substitution is supported without circuit modifications.

Q: What is the significance of the RoHS3 compliance difference?

A: The STK672-630CN-E meets RoHS3 environmental standards, making it suitable for applications and markets with mandatory RoHS compliance requirements. The STK672-630C-E does not specify RoHS status and may not meet these requirements.

Q: Are both parts still available for procurement?

A: Both parts are classified as obsolete. Availability is limited to existing inventory channels. Procurement should prioritize whichever part meets the specific application requirements, particularly regarding operating temperature range and regulatory compliance.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by matching motor type (unipolar stepper), output configuration (half-bridge), electrical ratings (2.2A output, 4.75V–5.25V supply, 0V–46V load), interface type (parallel), package form (19-SIP), and step resolution capability (1 and 1/2 step modes).