AOZ8000HI_2 Equivalent & Substitute Parts

Part Overview

The AOZ8000HI_2 is a steering transient voltage suppressor (TVS) diode manufactured by Alpha & Omega Semiconductor Inc., designed for multi-channel rail-to-rail protection in high-speed digital interfaces. This component provides 15V clamping voltage with 12A peak pulse current capability across four unidirectional channels in a compact SC-70-6 surface mount package. The device is rated for DVI, Ethernet, and USB applications with power line protection functionality.

The AOZ8000HI_2 carries an obsolete product status. Identifying functionally equivalent alternatives is necessary to support ongoing design requirements, legacy system maintenance, and supply chain continuity where original inventory becomes depleted.

Substiute Parts

AOZ8000HI_2

Alpha & Omega Semiconductor Inc.In Stock: 799AOZ8000HI_2 Datasheet

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AOZ8102DI

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

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AOZ8000HI_2 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Steering (Rail to Rail) topology with four unidirectional channels
• Surface mount package classification
• Power line protection capability
• Transient voltage suppressor (TVS) diode category

Allowable Parameter Variance:

• Voltage - Reverse Standoff: 5V to 5.5V range
• Voltage - Clamping (Max) @ Ipp: 15V to 18V range
• Current - Peak Pulse: Minimum 5A (8/20µs) to 12A (10/1000µs)
• Operating Temperature: Minimum -40°C to 125°C range
• Capacitance: Variance acceptable based on application frequency requirements

The AOZ8102DI qualifies as a substitute based on matching topology, channel configuration, protection capability, and surface mount form factor. Differences in package geometry (6-DFN versus SC-70-6), peak current rating, and operating temperature range represent trade-offs that must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

AOZ8102DI Substitution Considerations:

The AOZ8102DI is an active product from the same manufacturer, providing continuity of supply and ongoing technical support. Both devices share identical REACH compliance, ECCN classification, and HTSUS coding, ensuring regulatory alignment for procurement and export purposes.

The AOZ8102DI exhibits a 3V higher clamping voltage (18V versus 15V) and operates within a narrower temperature range (-40°C to 85°C versus -55°C to 125°C). The peak pulse current specification differs based on measurement pulse width: the AOZ8102DI is rated at 5A (8/20µs) compared to the AOZ8000HI_2 at 12A (10/1000µs). These differences reflect distinct pulse profile testing methodologies rather than direct current comparability.

Package geometry differs between the two devices: the AOZ8000HI_2 uses SC-70-6 (6-TSSOP) while the AOZ8102DI uses 6-DFN (1.6x1.6) with exposed pad. PCB layout modifications are required for substitution.

Selection of the AOZ8102DI is appropriate for applications where the narrower operating temperature range and higher clamping voltage are compatible with circuit design specifications. The active product status ensures availability and technical documentation support.

Frequently Asked Questions (FAQ)

Q: Can the AOZ8102DI directly replace the AOZ8000HI_2 without PCB modifications?

A: No. The AOZ8102DI uses a 6-DFN (1.6x1.6) package with exposed pad, while the AOZ8000HI_2 uses SC-70-6 (6-TSSOP). Different footprints require PCB layout changes. Pin-to-pin functionality is equivalent for the four unidirectional channels, but physical placement and thermal management differ.

Q: What is the significance of the different peak pulse current ratings?

A: The AOZ8000HI_2 specifies 12A at 10/1000µs pulse width, while the AOZ8102DI specifies 5A at 8/20µs pulse width. These represent different standardized test conditions. Direct current comparison requires analysis of actual transient event characteristics in the target application. The 8/20µs pulse is commonly used for power line surge testing, while 10/1000µs is used for ESD and general transient testing.

Q: Are there temperature range limitations when substituting the AOZ8102DI?

A: Yes. The AOZ8102DI operates from -40°C to 85°C (TJ), compared to the AOZ8000HI_2 range of -55°C to 125°C. Applications requiring operation below -40°C or above 85°C are not compatible with the AOZ8102DI substitute.

Q: Do both devices provide equivalent power line protection?

A: Both devices include power line protection capability and are rated for Ethernet applications. The AOZ8000HI_2 lists DVI, Ethernet, and USB applications, while the AOZ8102DI specifies Ethernet. Functional protection topology is identical (steering, rail-to-rail, four channels).

Q: What is the impact of the 3V clamping voltage difference?

A: The AOZ8102DI clamps at 18V maximum versus 15V for the AOZ8000HI_2. Higher clamping voltage provides less aggressive transient suppression. Circuit design must verify that 18V clamping is acceptable for protected components. This difference may affect signal integrity in sensitive applications.

Q: Are compliance certifications identical between the two devices?

A: Yes. Both devices share REACH Unaffected status, EAR99 ECCN classification, and 8541.10.0080 HTSUS code. Moisture sensitivity level is identical (MSL 1, Unlimited). Regulatory and procurement requirements are equivalent.

Q: Why is the AOZ8000HI_2 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The AOZ8102DI is an active product from the same manufacturer, providing a path forward for new designs and ongoing supply requirements.