AOZ8530DI LC (Pi) EMI Filter Equivalent & Substitute Parts

Part Overview

The AOZ8530DI is a 3rd order low pass LC (Pi) EMI filter manufactured by Alpha & Omega Semiconductor Inc., designed for data line protection in mobile devices. This 8-channel filter features 17nH inductance and 16pF capacitance per channel, with a 450MHz cutoff frequency and -25dB attenuation across the 800MHz to 3GHz range. The component is housed in a 16-UFDFN exposed pad surface mount package with integrated ESD protection.

The AOZ8530DI is currently listed as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this filter topology.

Substiute Parts

AOZ8530DI

Alpha & Omega Semiconductor Inc.In Stock: 87255AOZ8530DI Datasheet

Current PartRFQ

EMIF08-LCD04M16

STMicroelectronicsIn Stock: 16837EMIF08-LCD04M16 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AOZ8530DI is determined by the following critical parameters:

Mandatory Matching Criteria:

• Filter topology: 3rd order low pass LC (Pi) configuration
• Channel count: 8 channels
• Package type: 16-UFDFN exposed pad surface mount
• ESD protection: Integrated on-chip protection
• Operating temperature range: -40°C ~ 85°C minimum
• Regulatory compliance: ROHS3 and REACH status

Allowable Variation Parameters:

• Inductance value (L): 12nH to 17nH range
• Capacitance value (C): 16pF to 18pF range
• Cutoff frequency: 400MHz to 450MHz range
• Attenuation performance: -25dB to -35dB across specified frequency bands
• Physical dimensions: Minor variations within 16-UFDFN package specification
• Rated voltage: Equal to or greater than 5V

The EMIF08-LCD04M16 from STMicroelectronics meets all mandatory criteria and falls within allowable variation parameters for inductance, capacitance, and frequency response characteristics.

Parameter Comparison

Engineering Selection Recommendations

The EMIF08-LCD04M16 is a direct substitute for the obsolete AOZ8530DI based on the following factors:

Product Status: The EMIF08-LCD04M16 maintains active production status with STMicroelectronics, ensuring long-term availability and supply chain stability compared to the obsolete AOZ8530DI.

Regulatory Compliance: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and deployment.

Package Compatibility: Both parts utilize the 16-UFDFN exposed pad surface mount package. Physical dimensions are within acceptable tolerances for PCB layout and assembly processes, with the EMIF08-LCD04M16 featuring slightly reduced footprint dimensions (3.30mm x 1.35mm vs. 4.60mm x 1.20mm) and height (0.55mm vs. 0.60mm).

Functional Equivalence: The EMIF08-LCD04M16 maintains the 8-channel LC (Pi) 3rd order low pass filter topology with integrated ESD protection. The component operates across the same temperature range (-40°C ~ 85°C) and is specified for identical applications in mobile device data line protection.

Performance Characteristics: The EMIF08-LCD04M16 provides enhanced attenuation performance (-35dB vs. -25dB) across a partially overlapping frequency band, with a slightly lower cutoff frequency (400MHz vs. 450MHz). The inductance and capacitance values (12nH and 18pF respectively) fall within acceptable substitution parameters for this filter category.

Frequently Asked Questions (FAQ)

Q: Can the EMIF08-LCD04M16 be used as a direct replacement for the AOZ8530DI in existing designs?

A: Yes. Both components share identical package type (16-UFDFN exposed pad), channel count (8), filter topology (3rd order LC Pi), and operating temperature range (-40°C ~ 85°C). Physical dimensions are within acceptable PCB assembly tolerances. The EMIF08-LCD04M16 provides equivalent or superior performance characteristics for data line filtering in mobile device applications.

Q: What are the key differences in electrical performance between these two parts?

A: The EMIF08-LCD04M16 features lower inductance (12nH vs. 17nH) and higher capacitance (18pF vs. 16pF), resulting in a lower cutoff frequency (400MHz vs. 450MHz) and improved attenuation performance (-35dB vs. -25dB) across the 900MHz to 2GHz frequency band. These differences reflect design optimization in the STMicroelectronics component.

Q: Are there any PCB layout considerations when substituting the EMIF08-LCD04M16 for the AOZ8530DI?

A: The EMIF08-LCD04M16 has slightly smaller footprint dimensions (3.30mm x 1.35mm vs. 4.60mm x 1.20mm) and reduced height (0.55mm vs. 0.60mm). Existing PCB layouts designed for the AOZ8530DI will accommodate the EMIF08-LCD04M16 without modification. No additional design changes are required.

Q: What is the moisture sensitivity level for the EMIF08-LCD04M16?

A: The EMIF08-LCD04M16 has a Moisture Sensitivity Level (MSL) of 1 (Unlimited), identical to the AOZ8530DI. This indicates minimal moisture absorption risk and no special storage or handling requirements beyond standard component handling practices.

Q: Are both components RoHS and REACH compliant?

A: Yes. Both the AOZ8530DI and EMIF08-LCD04M16 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: What is the availability status of the EMIF08-LCD04M16?

A: The EMIF08-LCD04M16 is in active production status with STMicroelectronics, with 16,737 pieces currently in stock. This contrasts with the AOZ8530DI, which is obsolete and has limited remaining inventory (87,200 pieces).