AOZ8000HI Equivalent & Substitute Parts

Part Overview

The AOZ8000HI is a steering TVS diode designed for transient voltage suppression in Ethernet applications. This component features a 5V reverse standoff voltage with 15V clamping capability and 5A peak pulse current rating in a compact SC-70-6 surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

AOZ8000HI

Alpha & Omega Semiconductor Inc.In Stock: 78356AOZ8000HI Datasheet

Current PartRFQ

AOZ8102DI

Alpha & Omega Semiconductor Inc.In Stock: 21245AOZ8102DI Datasheet

MFR RecommendedRFQ

DRTR5V0U4S-7

Diodes IncorporatedIn Stock: 38251DRTR5V0U4S-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AOZ8000HI is determined by the following critical parameters:

• Reverse standoff voltage within 5V to 5.5V range
• Breakdown voltage minimum of 6V or higher
• Peak pulse current capability of 5A or greater
• Steering (Rail to Rail) TVS diode topology with 4 unidirectional channels
• Surface mount package compatibility
• Power line protection capability
• ROHS3 compliance

The two identified substitutes meet these core electrical and mechanical criteria:

AOZ8102DI maintains identical reverse standoff voltage (5V), breakdown voltage (6.6V), and peak pulse current (5A) specifications. The clamping voltage increases to 18V, and the package transitions from SC-70-6 to 6-DFN (1.6x1.6). This part is active in production status.

DRTR5V0U4S-7 provides a reverse standoff voltage of 5.5V (within tolerance) and breakdown voltage of 6V. The package remains SOT-363 compatible. This part includes automotive qualification (AEC-Q101) and operates across an extended temperature range (-65°C ~ 150°C).

Parameter Comparison

Engineering Selection Recommendations

AOZ8102DI is the primary substitute for direct functional replacement. Both parts originate from Alpha & Omega Semiconductor Inc., share identical electrical specifications for reverse standoff voltage, breakdown voltage, and peak pulse current, and maintain ROHS3 compliance. The AOZ8102DI is in active production status, ensuring long-term availability. Package migration from SC-70-6 to 6-DFN (1.6x1.6) requires PCB layout modification but maintains surface mount compatibility. The increased clamping voltage (18V vs. 15V) provides enhanced transient suppression margin.

DRTR5V0U4S-7 serves as an alternative substitute with distinct advantages for specific applications. This part maintains SOT-363 package compatibility with the original AOZ8000HI, minimizing PCB redesign requirements. The extended operating temperature range (-65°C ~ 150°C) and AEC-Q101 automotive qualification expand deployment options beyond standard industrial applications. The reverse standoff voltage of 5.5V remains within acceptable tolerance for Ethernet protection circuits.

Both substitutes maintain ROHS3 compliance, MSL Level 1 rating, and power line protection capability. Selection between AOZ8102DI and DRTR5V0U4S-7 depends on package constraints, temperature requirements, and application-specific certifications.

Frequently Asked Questions (FAQ)

Q: Can AOZ8102DI replace AOZ8000HI in existing designs without modification?

A: Electrical substitution is direct. The reverse standoff voltage, breakdown voltage, and peak pulse current specifications are identical. However, package migration from SC-70-6 to 6-DFN (1.6x1.6) requires PCB footprint redesign and layout adjustment.

Q: What is the significance of the increased clamping voltage in AOZ8102DI (18V vs. 15V)?

A: Higher clamping voltage provides additional margin for transient suppression. This characteristic does not compromise circuit protection and may improve performance in applications with higher transient stress levels.

Q: Is DRTR5V0U4S-7 suitable for Ethernet applications like the original AOZ8000HI?

A: DRTR5V0U4S-7 is specified for HDMI applications and includes automotive qualification. While the electrical parameters support Ethernet protection, application compatibility should be confirmed against specific circuit requirements.

Q: Why does DRTR5V0U4S-7 have a higher reverse standoff voltage (5.5V vs. 5V)?

A: The 5.5V reverse standoff voltage remains within acceptable tolerance for circuits designed around 5V protection thresholds. This specification difference reflects manufacturer design choices and does not preclude functional substitution in most applications.

Q: What are the package compatibility implications of selecting DRTR5V0U4S-7?

A: DRTR5V0U4S-7 uses SOT-363 package, which matches the original AOZ8000HI package designation. This alignment minimizes PCB redesign requirements compared to the AOZ8102DI 6-DFN option.

Q: Are all three parts ROHS3 compliant?

A: Yes. AOZ8000HI, AOZ8102DI, and DRTR5V0U4S-7 are all ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: What temperature range considerations apply when selecting a substitute?

A: AOZ8000HI operates -55°C ~ 125°C, AOZ8102DI operates -40°C ~ 85°C, and DRTR5V0U4S-7 operates -65°C ~ 150°C. Application temperature requirements determine which substitute is appropriate for specific deployment environments.