IX3120GS Equivalent & Substitute Parts

Part Overview

The IX3120GS is a 2.5A gate driver optical coupler manufactured by IXYS Integrated Circuits Division, providing 3750Vrms isolation for single-channel gate drive applications. This component integrates optical coupling technology to deliver galvanic isolation in high-voltage switching circuits. The IX3120GS is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

IX3120GS

IXYS Integrated Circuits DivisionIn Stock: 2452IX3120GS Datasheet

Current PartRFQ

HCPL-3120-300E

Broadcom LimitedIn Stock: 1879HCPL-3120-300E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IX3120GS is determined by strict equivalence across the following critical parameters:

• Voltage isolation rating: 3750Vrms minimum
• Single-channel gate driver configuration
• Peak output current: 2.5A
• Output current symmetry: 2A high and low
• Common mode transient immunity: 25kV/µs minimum
• Propagation delay: 500ns maximum for both rising and falling edges
• Pulse width distortion: 300ns maximum
• Output supply voltage range: 15V to 30V
• Operating temperature range: -40°C to 100°C
• Optical coupling technology

The HCPL-3120-300E from Broadcom Limited meets all specified electrical and functional parameters, making it a direct functional equivalent despite differences in packaging format and forward voltage characteristics.

Parameter Comparison

Engineering Selection Recommendations

The HCPL-3120-300E is the qualified substitute for the obsolete IX3120GS based on complete electrical parameter equivalence and active product status. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity. The substitute carries CSA and UR approvals, providing expanded certification coverage compared to the original part's UR approval alone. The transition from surface mount 8-SMD packaging to 8-DIP Gull Wing packaging requires PCB layout modification but does not affect electrical performance or functional compatibility in gate driver applications.

Frequently Asked Questions (FAQ)

Q: Can the HCPL-3120-300E directly replace the IX3120GS without circuit modification?

A: Electrical parameters are fully equivalent. PCB layout modification is required due to package format change from 8-SMD to 8-DIP Gull Wing. Pin functionality and signal timing remain identical.

Q: What is the significance of the obsolete status of the IX3120GS?

A: Obsolete status indicates the IX3120GS is no longer manufactured or supported by IXYS. The HCPL-3120-300E maintains active production status, ensuring long-term availability and supply chain stability.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant and REACH unaffected. The HCPL-3120-300E carries additional CSA approval alongside UR certification, providing broader regulatory acceptance.

Q: How do the forward voltage specifications differ?

A: The IX3120GS specifies 1.24V typical forward voltage, while the HCPL-3120-300E specifies 1.5V typical. This difference does not affect gate driver circuit operation within the specified output supply voltage range of 15V to 30V.

Q: What packaging considerations apply to this substitution?

A: The IX3120GS uses surface mount 8-SMD packaging; the HCPL-3120-300E uses 8-DIP Gull Wing packaging. Component footprint, mounting method, and PCB routing require redesign. Electrical functionality and performance characteristics remain unchanged.