FQD7N20TM_F080 Equivalent & Substitute Parts

Part Overview

The FQD7N20TM_F080 is an N-Channel MOSFET manufactured by onsemi, rated for 200V drain-to-source voltage with 5.3A continuous drain current at 25°C. This device is packaged in a Surface Mount TO-252AA (DPAK) configuration and is designed for applications requiring moderate power dissipation in a compact form factor.

The FQD7N20TM_F080 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

FQD7N20TM_F080

onsemiIn Stock: 861FQD7N20TM_F080 Datasheet

Current PartRFQ

STD5N20LT4

STMicroelectronicsIn Stock: 15266STD5N20LT4 Datasheet

SimilarRFQ

ZXMN20B28KTC

Diodes IncorporatedIn Stock: 15527ZXMN20B28KTC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FQD7N20TM_F080 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Drain to Source Voltage (Vdss): Must equal or exceed 200V
• Continuous Drain Current (Id): Must meet or exceed 5.3A at 25°C
• Package Type: Must be Surface Mount TO-252-3 (DPAK) configuration
• Operating Temperature Range: Must support -55°C to 150°C (TJ)
• Moisture Sensitivity Level: Must be MSL 1 or equivalent

Secondary Compatibility Factors:

• On-resistance (Rds On): Lower values indicate improved performance; values within 690mOhm are acceptable
• Gate Charge (Qg): Lower values reduce switching losses; values up to 10nC are compatible
• Input Capacitance (Ciss): Values up to 400pF are acceptable for circuit integration

The substitute parts listed below meet the primary substitution criteria and maintain electrical compatibility within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

STD5N20LT4 (STMicroelectronics)

The STD5N20LT4 is an Active product with ROHS3 compliance. This part meets the primary substitution criteria with a continuous drain current of 5A, which approaches the original 5.3A specification. The on-resistance of 700mOhm is comparable to the original 690mOhm. The lower gate threshold voltage (2.5V vs. 5V) and reduced gate charge (6nC vs. 10nC) provide improved switching characteristics. This substitute is suitable for applications where the 5A current rating is sufficient and where ROHS3 compliance is required.

ZXMN20B28KTC (Diodes Incorporated)

The ZXMN20B28KTC is an Active product with ROHS3 compliance. This part meets the voltage and package requirements but carries a continuous drain current rating of 1.5A, which is significantly lower than the original 5.3A specification. The power dissipation rating of 2.2W (Ta) is substantially reduced compared to the original 45W (Tc). This substitute is suitable only for applications where the current and power dissipation requirements are lower than the original design specifications.

Frequently Asked Questions (FAQ)

Q: Can the STD5N20LT4 directly replace the FQD7N20TM_F080 in all applications?

A: The STD5N20LT4 meets the primary substitution criteria of 200V Vdss and comparable on-resistance. However, the continuous drain current is rated at 5A versus the original 5.3A. Direct substitution is valid for applications where the 5A current rating is sufficient. Circuit validation is required if the original design operates near the 5.3A limit.

Q: Why is the ZXMN20B28KTC listed as a substitute if its current rating is only 1.5A?

A: The ZXMN20B28KTC meets the voltage (200V Vdss) and package (TO-252-3 DPAK) requirements. However, its 1.5A continuous drain current is substantially lower than the original 5.3A specification. This part is suitable only for applications with reduced current requirements or as a substitute in circuits where the original design has significant current margin.

Q: Are all substitute parts available in the same packaging?

A: Yes. The FQD7N20TM_F080, STD5N20LT4, and ZXMN20B28KTC are all Surface Mount devices in the TO-252-3 (DPAK) package configuration. Physical footprint compatibility is maintained across all three parts.

Q: What is the significance of the gate threshold voltage differences between these parts?

A: The FQD7N20TM_F080 has a gate threshold voltage of 5V, while both substitute parts are rated at 2.5V. Lower threshold voltages enable faster switching at lower gate drive voltages. Circuit designs must account for this difference if gate drive circuitry is optimized for the original 5V threshold specification.

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

A: Yes. All three parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly.

Q: What compliance certifications apply to the substitute parts?

A: Both STD5N20LT4 and ZXMN20B28KTC are ROHS3 compliant and REACH unaffected. The original FQD7N20TM_F080 is REACH unaffected but does not carry ROHS3 certification due to its Obsolete status.