AOD2210 N-Channel MOSFET 200V 3A/18A TO-252 Equivalent & Substitute Parts

Part Overview

The AOD2210 is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 200V drain-to-source voltage with continuous drain current ratings of 3A at ambient temperature (Ta) and 18A at case temperature (Tc). This device is housed in a Surface Mount TO-252 (DPAK) package and is designed for general-purpose switching and amplification applications requiring moderate voltage and current handling. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching critical electrical parameters: drain-to-source voltage rating (Vdss), package type (TO-252/DPAK), gate threshold voltage (Vgs(th)), and operating temperature range compatibility. Substitutes must maintain functional equivalence within the specified electrical and thermal constraints of the application circuit.

Substiute Parts

AOD2210

Alpha & Omega Semiconductor Inc.In Stock: 20220AOD2210 Datasheet

Current PartRFQ

FDD18N20LZ

onsemiIn Stock: 17657FDD18N20LZ Datasheet

MFR RecommendedRFQ

FDD2670

onsemiIn Stock: 25253FDD2670 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AOD2210 are qualified based on the following critical parameters that determine functional equivalence:

Mandatory Matching Parameters:

• Drain-to-Source Voltage (Vdss): 200V
• Package Type: TO-252 (DPAK) Surface Mount
• FET Type: N-Channel
• Technology: MOSFET (Metal Oxide)
• Gate Voltage Rating (Vgs): ±20V

Compatible Parameter Ranges:

• Gate Threshold Voltage (Vgs(th)): 2.5V to 4.5V @ 250µA
• Continuous Drain Current (Id): 3A minimum at Ta or equivalent Tc rating
• On-State Resistance (Rds On): 105mOhm to 130mOhm @ 10V gate drive
• Gate Charge (Qg): 40nC to 43nC @ 10V
• Operating Temperature: -55°C minimum to 150°C or higher

The identified substitutes FDD18N20LZ and FDD2670 meet all mandatory matching parameters and fall within compatible ranges for secondary electrical characteristics. Both parts are manufactured by onsemi, maintain Active product status, and carry identical RoHS3 compliance and MSL ratings as the AOD2210.

Parameter Comparison

Engineering Selection Recommendations

AOD2210 Primary Selection: The AOD2210 is the specified component and should be used when design requirements explicitly call for this part number. It offers the highest continuous drain current rating at case temperature (18A Tc) and the widest operating temperature range (-55°C to 175°C), providing maximum thermal headroom and performance margin in high-temperature applications.

FDD18N20LZ Substitution: The FDD18N20LZ (onsemi UniFET™ series) is a direct substitute for applications requiring high current handling at case temperature (16A Tc). This part maintains identical gate threshold voltage (2.5V @ 250µA) and gate charge (40nC @ 10V) as the AOD2210, ensuring compatible gate drive requirements. The slightly higher on-state resistance (125mOhm @ 8A vs. 105mOhm @ 18A) and lower maximum power dissipation (89W Tc vs. 100W Tc) are acceptable for most switching applications. The operating temperature range is limited to -55°C to 150°C, which is suitable for standard industrial and consumer applications but not for extended high-temperature operation beyond 150°C.

FDD2670 Substitution: The FDD2670 (onsemi PowerTrench® series) is suitable for applications with lower current requirements (3.6A Ta) or where lower input capacitance (1228pF @ 100V) is beneficial for high-frequency switching. The higher gate threshold voltage (4.5V @ 250µA) requires verification of gate drive circuit capability to ensure adequate gate voltage margin. The on-state resistance (130mOhm @ 3.6A) and power dissipation (70W Tc) are lower than the AOD2210, making this part appropriate for reduced-power applications. Operating temperature range is -55°C to 150°C.

Compliance and Certification: All three parts maintain Active product status, RoHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH Unaffected status. All parts carry identical ECCN (EAR99) and HTSUS (8541.29.0095) classifications, ensuring equivalent regulatory and export compliance.

Frequently Asked Questions (FAQ)

Q: Can the FDD18N20LZ replace the AOD2210 in all applications?

A: The FDD18N20LZ is functionally equivalent for applications operating within -55°C to 150°C. The primary difference is the reduced maximum operating temperature (150°C vs. 175°C for the AOD2210). If your application requires sustained operation above 150°C junction temperature, the AOD2210 is required. For standard industrial and consumer applications, the FDD18N20LZ provides equivalent performance with 16A continuous drain current at case temperature.

Q: What is the impact of the higher gate threshold voltage in the FDD2670?

A: The FDD2670 has a gate threshold voltage of 4.5V @ 250µA, compared to 2.5V for both the AOD2210 and FDD18N20LZ. This means the FDD2670 requires a higher gate voltage to begin conducting. Verify that your gate drive circuit can supply sufficient voltage margin above 4.5V to ensure reliable switching. If your gate drive is limited to 5V or 10V logic levels, confirm that the higher threshold does not compromise switching speed or on-state performance.

Q: Are the TO-252 and TO-252AA packages physically identical?

A: The TO-252 (DPAK) and TO-252AA (DPAK) packages are mechanically and electrically compatible. Both are Surface Mount packages with identical lead spacing and footprint. The "AA" designation indicates a minor revision or manufacturing variant but does not affect PCB layout or thermal performance. All three parts use the same package footprint: TO-252-3, DPAK (2 Leads + Tab), SC-63.

Q: How do the on-state resistance values compare, and does this affect power dissipation?

A: The AOD2210 has the lowest on-state resistance at 105mOhm @ 18A, 10V. The FDD18N20LZ measures 125mOhm @ 8A, 10V, and the FDD2670 measures 130mOhm @ 3.6A, 10V. Lower on-state resistance reduces conduction losses and heat generation. For high-current applications (>10A), the AOD2210 or FDD18N20LZ are preferred. For lower-current applications (<5A), the FDD2670 is acceptable despite slightly higher resistance.

Q: What is the significance of the input capacitance (Ciss) differences?

A: The AOD2210 has the highest input capacitance at 2065pF @ 100V, while the FDD2670 has the lowest at 1228pF @ 100V. Higher input capacitance requires more gate charge to switch the device and may increase switching losses in high-frequency applications. If your circuit operates at frequencies above 100kHz, the lower input capacitance of the FDD2670 may reduce switching losses. For standard switching frequencies below 50kHz, the difference is negligible.

Q: Can I use the FDD2670 in place of the AOD2210 for high-current applications?

A: No. The FDD2670 is rated for 3.6A continuous drain current at ambient temperature, which is significantly lower than the AOD2210's 3A at Ta and 18A at Tc. The FDD2670 is suitable only for applications requiring 3.6A or less. For applications requiring 10A or higher continuous current, use the AOD2210 or FDD18N20LZ.

Q: Are all three parts available in the same packaging options?

A: The AOD2210 is available in Cut Tape and Digi-Reel packaging. The FDD18N20LZ is available in Cut Tape (CT) and Digi-Reel. The FDD2670 is available in Tape & Reel (TR). Verify packaging availability with your supplier before finalizing procurement. All three parts are Surface Mount devices suitable for automated assembly.

Q: What is the maximum junction temperature difference between these parts?

A: The AOD2210 operates to 175°C junction temperature, while both the FDD18N20LZ and FDD2670 operate to 150°C maximum. This 25°C difference is significant for applications with limited thermal management or high ambient temperatures. If your design operates near the thermal limit, the AOD2210 provides additional margin.