AOZ8000HIL Equivalent & Substitute Parts

Part Overview

The AOZ8000HIL is a transient voltage suppressor (TVS) diode designed for rail-to-rail steering applications with a 5V reverse standoff voltage and 15V clamping capability. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across a temperature range of -55°C to 125°C and is housed in a 6-TSSOP (SC-70-6) surface mount package, commonly used in Ethernet protection circuits.

Substiute Parts

AOZ8000HIL

Alpha & Omega Semiconductor Inc.In Stock: 1028AOZ8000HIL Datasheet

Current PartRFQ

AOZ8102DI

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOZ8000HIL is determined by the following critical electrical and mechanical parameters:

• Reverse Standoff Voltage (Typ): 5V — must match exactly to maintain circuit bias point integrity
• Breakdown Voltage (Min): 6.6V — must match to ensure consistent trigger threshold
• Unidirectional Channels: 4 — steering configuration must remain unchanged
• Type: Steering (Rail to Rail) — functional topology must be preserved
• Current Rating (Peak Pulse): 5A (8/20µs) — surge handling capacity must be maintained
• Mounting Type: Surface Mount — PCB assembly compatibility requirement
• RoHS Compliance: ROHS3 Compliant — regulatory requirement

The AOZ8102DI qualifies as a manufacturer-recommended substitute based on matching these core parameters. While the clamping voltage increases from 15V to 18V and the operating temperature range narrows from -55°C to 125°C to -40°C to 85°C, the electrical protection characteristics and steering topology remain functionally equivalent for the specified application.

Parameter Comparison

Engineering Selection Recommendations

The AOZ8102DI is the manufacturer-recommended substitute for the obsolete AOZ8000HIL. Both parts maintain identical reverse standoff voltage (5V), breakdown voltage (6.6V), and peak pulse current (5A) specifications, ensuring functional equivalence in Ethernet protection applications.

Key considerations for selection:

• Product Status: The AOZ8102DI is active production, providing long-term availability and supply chain stability compared to the obsolete AOZ8000HIL.
• Regulatory Compliance: Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental standards.
• Package Transition: The AOZ8102DI uses a 6-UFDFN (1.6x1.6) package versus the SC-70-6 package of the original part. PCB layout modification is required.
• Clamping Voltage: The AOZ8102DI provides 18V clamping versus 15V for the AOZ8000HIL. This higher clamping voltage offers additional transient suppression margin.
• Operating Temperature: The AOZ8102DI operates from -40°C to 85°C, narrower than the original -55°C to 125°C range. Verify compatibility with your application's thermal requirements.

Frequently Asked Questions (FAQ)

Q: Can the AOZ8102DI directly replace the AOZ8000HIL without circuit modification?

A: The electrical characteristics are compatible, but the package change from SC-70-6 to 6-UFDFN requires PCB layout redesign. The footprint, pin pitch, and pad configuration differ between these packages.

Q: What is the significance of the 3V increase in clamping voltage (15V to 18V)?

A: The higher clamping voltage of the AOZ8102DI provides additional margin for transient suppression. This is not a limitation but an enhancement for circuit protection.

Q: Are there any temperature range limitations when substituting?

A: The AOZ8102DI operates from -40°C to 85°C, compared to the original -55°C to 125°C. If your application requires operation below -40°C or above 85°C, the substitute is not suitable.

Q: Do both parts have the same moisture sensitivity level?

A: Yes, both the AOZ8000HIL and AOZ8102DI have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Is the 4-channel steering configuration identical between both parts?

A: Yes, both parts maintain the same 4-channel rail-to-rail steering topology, ensuring functional compatibility in Ethernet protection circuits.