FDP7030BL Equivalent & Substitute Parts

Part Overview

The FDP7030BL is an N-Channel MOSFET manufactured by onsemi, rated for 30V drain-to-source voltage with 60A continuous drain current at 25°C. This device is packaged in a Through Hole TO-220-3 configuration and is designed for power switching applications requiring moderate current handling in a compact form factor. The FDP7030BL carries an Obsolete product status, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

FDP7030BL

onsemiIn Stock: 15446FDP7030BL Datasheet

Current PartRFQ

IRL3803PBF

Infineon TechnologiesIn Stock: 10139IRL3803PBF Datasheet

SimilarRFQ

IRLB8721PBF

Infineon TechnologiesIn Stock: 15477IRLB8721PBF Datasheet

SimilarRFQ

PSMN2R0-30PL,127

Nexperia USA Inc.In Stock: 10287PSMN2R0-30PL,127 Datasheet

SimilarRFQ

PSMN4R3-30PL,127

Nexperia USA Inc.In Stock: 5627PSMN4R3-30PL,127 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FDP7030BL is determined by the following critical parameters:

Primary Matching Criteria:

• Drain to Source Voltage (Vdss): 30V (exact match required)
• FET Type: N-Channel (exact match required)
• Technology: MOSFET (Metal Oxide) (exact match required)
• Package Type: TO-220-3 or TO-220AB (mechanically compatible)
• Mounting Type: Through Hole (exact match required)

Secondary Compatibility Parameters:

• Continuous Drain Current (Id): Equal to or greater than 60A
• Rds On (Max): Equal to or less than 9mOhm (lower resistance acceptable)
• Gate Charge (Qg): Lower values preferred for switching speed
• Input Capacitance (Ciss): Lower values preferred for gate drive efficiency
• Operating Temperature Range: Must encompass -65°C to 175°C or be compatible with application requirements
• Vgs (Max): Must support ±20V or greater

All substitute parts listed meet the primary matching criteria and maintain electrical compatibility within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

IRLB8721PBF (Infineon Technologies) - Primary Recommendation

The IRLB8721PBF is the most direct functional equivalent to the FDP7030BL. This device maintains an Active product status, ensuring long-term availability and supply chain stability. The IRLB8721PBF delivers 62A continuous drain current, matching the FDP7030BL specification within 3.3% tolerance. The Rds On value of 8.7mOhm at 31A is marginally lower than the FDP7030BL specification, providing improved efficiency. Gate charge is reduced to 13nC, enabling faster switching characteristics. Input capacitance is reduced to 1077pF, reducing gate drive requirements. The device supports ±20V gate voltage, matching the FDP7030BL specification. Operating temperature range extends to -55°C minimum, which is acceptable for most applications requiring -65°C operation through thermal management or derating. ROHS3 compliance and Unlimited MSL rating ensure regulatory and manufacturing compatibility.

PSMN4R3-30PL,127 (Nexperia USA Inc.) - Secondary Recommendation

The PSMN4R3-30PL,127 provides higher current capability at 100A continuous drain current, offering 66.7% additional current headroom. Rds On is reduced to 4.3mOhm, significantly improving power efficiency. Gate charge increases to 41.5nC, requiring proportionally higher gate drive capability. Input capacitance increases to 2400pF, necessitating gate driver evaluation. This device is suitable for applications where higher current capacity and lower on-resistance are beneficial. Product status is Obsolete; however, inventory availability is confirmed at 5596 units. ROHS3 compliance and Unlimited MSL rating are maintained.

PSMN2R0-30PL,127 (Nexperia USA Inc.) - Alternative for High-Efficiency Applications

The PSMN2R0-30PL,127 offers the lowest on-resistance at 2.1mOhm, delivering maximum power efficiency. Continuous drain current is rated at 100A. Gate charge increases to 117nC, requiring robust gate drive circuitry. Input capacitance reaches 6810pF, representing a significant increase from the FDP7030BL baseline. This device is applicable to designs prioritizing thermal performance and power dissipation reduction. Product status is Obsolete with confirmed inventory of 10198 units. ROHS3 compliance and Unlimited MSL rating are maintained.

IRL3803PBF (Infineon Technologies) - High-Current Alternative

The IRL3803PBF provides the highest current rating at 140A continuous drain current, delivering 133% additional capacity. Rds On is reduced to 6mOhm at 71A. Gate charge increases substantially to 140nC, requiring significant gate drive resources. Input capacitance reaches 5000pF. Vgs (Max) is limited to ±16V, requiring gate voltage clamping if ±20V operation is required. Product status is Not For New Designs, limiting suitability for new development. This device is applicable only to legacy system maintenance or replacement scenarios where higher current capacity is essential.

Frequently Asked Questions (FAQ)

Q: Can the IRLB8721PBF directly replace the FDP7030BL without circuit modifications?

A: The IRLB8721PBF is mechanically and electrically compatible with the FDP7030BL in most applications. Both devices are packaged in TO-220 configurations with identical pin assignments. The IRLB8721PBF delivers comparable current (62A vs. 60A) and voltage ratings (30V). Gate charge reduction from 24nC to 13nC may improve switching speed; however, existing gate drive circuits designed for the FDP7030BL will operate correctly with the IRLB8721PBF. Thermal management should be evaluated, as the IRLB8721PBF has a slightly higher power dissipation rating (65W vs. 60W).

Q: What is the significance of the operating temperature range difference between the FDP7030BL (-65°C to 175°C) and substitute parts (-55°C to 175°C)?

A: The FDP7030BL specifies a lower minimum operating temperature of -65°C, while all substitute parts specify -55°C minimum. For applications operating below -55°C, the FDP7030BL is the only listed option. For applications operating between -55°C and 175°C, all substitute parts are suitable. Applications requiring -65°C operation must either retain the FDP7030BL or implement thermal derating strategies with substitute parts.

Q: How do gate charge differences affect circuit design?

A: Gate charge (Qg) determines the total charge required to switch the MOSFET from off to on state. The FDP7030BL requires 24nC at 5V, while the IRLB8721PBF requires 13nC at 4.5V. Lower gate charge reduces gate drive current requirements and switching losses. Existing gate drive circuits designed for 24nC will operate correctly with lower gate charge devices; however, switching speed will increase. For applications with marginal gate drive capability, lower gate charge devices (IRLB8721PBF, PSMN4R3-30PL,127) are preferred. For applications with robust gate drive circuits, higher gate charge devices (PSMN2R0-30PL,127, IRL3803PBF) are acceptable.

Q: Are TO-220-3 and TO-220AB packages mechanically interchangeable?

A: TO-220-3 and TO-220AB are mechanically compatible packages with identical pin pitch and mounting hole spacing. Both are Through Hole configurations suitable for standard PCB layouts. The primary difference is internal lead frame design, which does not affect mechanical mounting or electrical connectivity. Substitution between these package variants is mechanically feasible without PCB redesign.

Q: What is the impact of reduced on-resistance (Rds On) in substitute parts?

A: Lower on-resistance reduces power dissipation during conduction. The FDP7030BL specifies 9mOhm at 30A, while substitute parts range from 2.1mOhm to 8.7mOhm. Lower on-resistance devices (PSMN2R0-30PL,127 at 2.1mOhm) reduce heat generation and improve efficiency. This is beneficial in high-frequency switching applications or designs with thermal constraints. However, lower on-resistance devices typically exhibit higher input capacitance and gate charge, requiring gate drive circuit evaluation.

Q: Why is the IRLB8721PBF recommended as the primary substitute despite being Active status?

A: The IRLB8721PBF carries Active product status, indicating ongoing manufacturing and long-term availability. This ensures supply chain continuity and eliminates obsolescence risk. The device delivers electrical performance closely matching the FDP7030BL (62A vs. 60A current, 8.7mOhm vs. 9mOhm on-resistance) while offering improved switching characteristics through reduced gate charge. Active status combined with electrical compatibility makes this the optimal choice for new designs and long-term production requirements.

Q: Can higher current-rated devices (100A, 140A) be used in applications designed for 60A?

A: Yes, higher current-rated devices can be used in 60A applications. The continuous drain current rating represents the maximum safe operating current; devices rated for higher currents can safely operate at lower currents. Higher current devices typically exhibit lower on-resistance, reducing power dissipation and improving efficiency. However, increased input capacitance and gate charge may require gate drive circuit evaluation. Thermal management remains the primary design consideration regardless of current rating.

Q: What compliance certifications are relevant for substitute part selection?

A: All listed substitute parts maintain ROHS3 compliance, ensuring compatibility with environmental regulations and procurement requirements. All devices carry Unlimited Moisture Sensitivity Level (MSL) ratings, eliminating moisture-related handling constraints. REACH Unaffected status confirms no restricted substance concerns. These certifications are consistent across all substitute options, making compliance a non-differentiating factor in selection.