AOZ8808DI-03 Equivalent & Substitute Parts

Part Overview

The AOZ8808DI-03 is a steering TVS diode designed for transient voltage suppression in high-speed digital interfaces. Manufactured by Alpha & Omega Semiconductor Inc., this component provides 8V clamping with 12A peak pulse current capability in a compact 10-DFN surface mount package. The part is currently in active production status with 1400 units available in inventory.

Substitute parts become necessary when the AOZ8808DI-03 reaches end-of-life, when alternative packaging formats are required, or when design specifications allow for different electrical parameters within the application's tolerance window.

Substiute Parts

AOZ8808DI-03

Alpha & Omega Semiconductor Inc.In Stock: 1439AOZ8808DI-03 Datasheet

Current PartRFQ

AOZ8809DI-03

Alpha & Omega Semiconductor Inc.In Stock: 51215AOZ8809DI-03 Datasheet

DirectRFQ

IP4283CZ10-TBA,115

Nexperia USA Inc.In Stock: 663638IP4283CZ10-TBA,115 Datasheet

MFR RecommendedRFQ

IP4292CZ10-TBR,115

Nexperia USA Inc.In Stock: 5804IP4292CZ10-TBR,115 Datasheet

MFR RecommendedRFQ

IP4294CZ10-TBR,115

Nexperia USA Inc.In Stock: 42946IP4294CZ10-TBR,115 Datasheet

MFR RecommendedRFQ

PUSB3F96X

Nexperia USA Inc.In Stock: 105230PUSB3F96X Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AOZ8808DI-03 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must remain at or below 3.3V (Max) to maintain circuit protection thresholds
• Voltage - Clamping (Max) @ Ipp: Must not exceed 8V to ensure adequate transient suppression
• Current - Peak Pulse: Must support minimum 12A at specified pulse duration
• Type: Must be Steering (Rail to Rail) configuration with 4 unidirectional channels
• Package / Case: Must be compatible 10-DFN form factor for surface mount assembly
• Operating Temperature Range: Must support -40°C to 125°C minimum
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

Parts are grouped into two categories: direct equivalents from the same manufacturer (AOZ series) and cross-manufacturer alternatives (Nexperia IP series) that meet the electrical and mechanical requirements within specified tolerances.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Manufacturer):

AOZ8809DI-03 provides identical electrical specifications to the AOZ8808DI-03 with matching voltage ratings, clamping characteristics, and peak pulse current. The primary difference is product status designation as "Not For New Designs," indicating this part is in mature phase. Selection of AOZ8809DI-03 is appropriate for legacy system maintenance or when existing design validation has been completed. Packaging format differs (Cut Tape & Digi-Reel® versus Tape & Reel), which may affect procurement and assembly workflows.

Cross-Manufacturer Alternatives (Nexperia):

IP4283CZ10-TBA,115 and PUSB3F96X are active production parts from Nexperia with higher voltage ratings (5.5V reverse standoff, 6V breakdown minimum) compared to the AOZ8808DI-03. These parts are suitable for applications where the circuit can tolerate elevated voltage thresholds. IP4283CZ10-TBA,115 offers higher clamping voltage (9.5V Typ) and lower peak pulse current (3.8A), while PUSB3F96X provides intermediate clamping voltage (4.6V Typ) with 5.2A peak pulse current. Both maintain ROHS3 compliance and MSL 1 rating.

IP4292CZ10-TBR,115 and IP4294CZ10-TBR,115 are designated "Not For New Designs" and feature significantly lower clamping voltages (4V and 4.1V respectively) with reduced peak pulse current (4A). These parts are not recommended for new designs and should be considered only for legacy system support where design validation has already been performed.

Frequently Asked Questions (FAQ)

Q: Can AOZ8809DI-03 be used as a direct replacement for AOZ8808DI-03?

A: Yes. AOZ8809DI-03 provides identical electrical specifications including 3.3V reverse standoff, 8V clamping voltage, and 12A peak pulse current. The primary consideration is packaging format: AOZ8809DI-03 is supplied in Cut Tape & Digi-Reel® format while AOZ8808DI-03 is supplied in Tape & Reel format. Verify your assembly equipment compatibility with the packaging format before procurement.

Q: Are Nexperia parts (IP4283, IP4292, IP4294, PUSB3F96X) compatible with AOZ8808DI-03 designs?

A: Compatibility depends on circuit tolerance for higher voltage thresholds. Nexperia parts feature 5.5V reverse standoff and 6V breakdown minimum, compared to 3.3V and 4.6V for the AOZ8808DI-03. Applications requiring precise voltage clamping at 8V or lower may not tolerate these higher thresholds. Consult your circuit design specifications and perform validation testing before substitution.

Q: What is the difference between 10-UFDFN and 10-XFDFN packages?

A: Both are 10-pin DFN surface mount packages with similar footprints (2.5x1mm). The UFDFN designation is specific to Alpha & Omega Semiconductor, while XFDFN is Nexperia's equivalent package designation. Physical dimensions and land pattern compatibility should be verified with component datasheets and PCB layout tools before design implementation.

Q: Why do some substitute parts show lower peak pulse current ratings?

A: IP4292CZ10-TBR,115 and IP4294CZ10-TBR,115 are rated for 4A peak pulse current at 8/20µs pulse duration, compared to AOZ8808DI-03's 12A at 100ns. These parts are designed for different transient event profiles and applications. Selection must align with your specific transient suppression requirements and pulse characteristics.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the AOZ8808DI-03 environmental and regulatory requirements.

Q: Which substitute parts are recommended for new designs?

A: AOZ8809DI-03, IP4283CZ10-TBA,115, and PUSB3F96X are designated as active production parts suitable for new designs. IP4292CZ10-TBR,115 and IP4294CZ10-TBR,115 are marked "Not For New Designs" and should be reserved for legacy system support only.