ZXMP6A17N8TC P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The ZXMP6A17N8TC is a P-Channel MOSFET manufactured by Diodes Incorporated, rated for 60V drain-to-source voltage with 2.7A continuous drain current at 25°C. This device is packaged in an 8-SOIC surface mount configuration and is designed for general-purpose switching and amplification applications in low-power circuits.

The ZXMP6A17N8TC has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Substiute Parts

ZXMP6A17N8TC

Diodes IncorporatedIn Stock: 18538ZXMP6A17N8TC Datasheet

Current PartRFQ

AO4421

Alpha & Omega Semiconductor Inc.In Stock: 180287AO4421 Datasheet

DirectRFQ

NDS9407

onsemiIn Stock: 35171NDS9407 Datasheet

MFR RecommendedRFQ

SI9407BDY-T1-GE3

Vishay SiliconixIn Stock: 35447SI9407BDY-T1-GE3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ZXMP6A17N8TC is determined by the following critical parameters:

Mandatory Matching Criteria:

• FET Type: P-Channel
• Technology: MOSFET (Metal Oxide)
• Drain-to-Source Voltage (Vdss): 60V minimum
• Package Type: 8-SOIC surface mount
• Mounting Type: Surface Mount

Performance Compatibility Criteria:

• Continuous Drain Current (Id): Must equal or exceed 2.7A at 25°C
• On-Resistance (Rds On): Lower values indicate improved performance and are acceptable
• Gate Threshold Voltage (Vgs(th)): Must be compatible with existing gate drive circuits
• Operating Temperature Range: Must encompass the application's thermal requirements
• Power Dissipation: Must support the thermal load of the application

Substitute parts are grouped based on their ability to meet or exceed these parameters while maintaining electrical and mechanical compatibility with the original design.

Parameter Comparison

Engineering Selection Recommendations

NDS9407 (onsemi)

The NDS9407 is an active product manufactured by onsemi in the PowerTrench® series. This substitute meets the mandatory electrical parameters with 3A continuous drain current, exceeding the ZXMP6A17N8TC requirement of 2.7A. The device maintains 60V Vdss rating and 8-SOIC packaging compatibility. The NDS9407 offers an extended operating temperature range to 175°C, providing additional thermal margin. All regulatory compliance certifications (ROHS3, REACH Unaffected, EAR99) align with the original part. This substitute is suitable for direct replacement in applications where the higher current rating and extended temperature range do not create thermal or circuit design conflicts.

SI9407BDY-T1-GE3 (Vishay Siliconix)

The SI9407BDY-T1-GE3 is an active product manufactured by Vishay Siliconix in the TrenchFET® series. This substitute provides 4.7A continuous drain current at 25°C (Tc measurement), significantly exceeding the 2.7A requirement. The 60V Vdss rating and 8-SOIC package maintain full compatibility. On-resistance of 120 mOhm at 3.2A, 10V is comparable to the original specification. Power dissipation capability of 2.4W (Ta) and 5W (Tc) supports higher thermal loads. All regulatory certifications match the original part. This substitute is suitable for applications requiring improved thermal performance and higher current handling capacity.

AO4421 (Alpha & Omega Semiconductor Inc.)

The AO4421 is an active product manufactured by Alpha & Omega Semiconductor Inc. This substitute provides the highest current rating at 6.2A continuous drain current, with the lowest on-resistance of 40 mOhm at 6.2A, 10V. The 60V Vdss rating and 8-SOIC package maintain full compatibility. Power dissipation capability of 3.1W (Ta) supports elevated thermal loads. All regulatory certifications align with the original part. The AO4421 exhibits higher input capacitance (2900 pF) and gate charge (55 nC) compared to the original part, which may require circuit evaluation in high-frequency switching applications. This substitute is suitable for applications where maximum current capacity and lowest on-resistance are design priorities.

Frequently Asked Questions (FAQ)

Q: Can the NDS9407, SI9407BDY-T1-GE3, or AO4421 be used as direct replacements for the ZXMP6A17N8TC?

A: Yes, all three substitute parts are electrically and mechanically compatible for direct replacement. Each maintains the 60V Vdss rating, P-Channel configuration, and 8-SOIC package format. All exceed the minimum 2.7A continuous drain current requirement. Substitution is valid provided the application circuit does not depend on the specific on-resistance, gate charge, or input capacitance characteristics of the original part.

Q: What are the key differences between the substitute parts?

A: The NDS9407 provides 3A current rating with moderate on-resistance (150 mOhm) and extended temperature range to 175°C. The SI9407BDY-T1-GE3 offers 4.7A current rating with improved on-resistance (120 mOhm) and dual power dissipation ratings. The AO4421 provides the highest current rating (6.2A) and lowest on-resistance (40 mOhm) but exhibits higher input capacitance and gate charge. Selection depends on application current requirements and thermal constraints.

Q: Are there package compatibility concerns?

A: All substitute parts use the 8-SOIC package format with 0.154" (3.90mm) width, matching the original ZXMP6A17N8TC. Pin-to-pin compatibility is maintained across all substitutes. No PCB layout modifications are required for package substitution.

Q: Do the substitute parts have the same regulatory compliance as the original?

A: Yes, all substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99. Moisture sensitivity level (MSL) rating is 1 (Unlimited) for all parts, matching the original specification.

Q: What is the significance of the different gate threshold voltage specifications?

A: The ZXMP6A17N8TC specifies Vgs(th) Max of 1V at 250µA, while all substitute parts specify 3V at 250µA. This difference indicates the original part has a lower threshold voltage. In applications with marginal gate drive voltage, this characteristic difference must be evaluated. Existing gate drive circuits designed for the original part will operate the substitutes with adequate margin at 3V threshold.

Q: How do on-resistance differences affect circuit performance?

A: Lower on-resistance reduces power dissipation and heat generation during conduction. The AO4421 (40 mOhm) dissipates significantly less power than the original (125 mOhm) at equivalent current levels. The SI9407BDY-T1-GE3 (120 mOhm) and NDS9407 (150 mOhm) provide moderate improvements. Applications with high switching frequency or continuous conduction benefit from lower on-resistance substitutes.

Q: Are there switching speed considerations with the substitute parts?

A: Gate charge and input capacitance affect switching speed. The original part specifies 17.7 nC gate charge and 637 pF input capacitance. The AO4421 exhibits higher values (55 nC and 2900 pF), which may slow switching transitions in high-frequency applications. The NDS9407 and SI9407BDY-T1-GE3 maintain comparable gate charge and input capacitance to the original, preserving switching characteristics.

Q: Which substitute is recommended for thermal-constrained applications?

A: The SI9407BDY-T1-GE3 provides the highest power dissipation capability at 5W (Tc), making it suitable for applications with elevated thermal loads. The AO4421 offers 3.1W (Ta) with the lowest on-resistance, reducing self-generated heat. The NDS9407 provides 2.5W (Ta) with extended temperature range to 175°C for high-ambient-temperature environments.