IRLR3714ZPBF N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRLR3714ZPBF is an N-Channel MOSFET manufactured by Infineon Technologies, part of the HEXFET® series. This device is rated for 20V drain-to-source voltage with 37A continuous drain current and 35W power dissipation in a Surface Mount TO-252AA (DPAK) package. The product is currently classified as Obsolete, making identification of suitable substitute components necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

IRLR3714ZPBF

Infineon TechnologiesIn Stock: 8067IRLR3714ZPBF Datasheet

Current PartRFQ

IPD30N03S2L20ATMA1

Infineon TechnologiesIn Stock: 6096IPD30N03S2L20ATMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRLR3714ZPBF is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• FET Type: N-Channel topology must be maintained
• Drain to Source Voltage (Vdss): Substitute must equal or exceed 20V rating
• Continuous Drain Current (Id): Substitute must support the application's current requirements
• On-State Resistance (Rds On): Substitute must not exceed the thermal and power dissipation limits of the original design
• Gate Threshold Voltage (Vgs(th)): Must fall within compatible drive voltage ranges
• Operating Temperature Range: Must support -55°C to 175°C (TJ) or equivalent

Mechanical Compatibility Criteria:

• Package Type: Surface Mount TO-252-3 (DPAK) form factor with 2 Leads + Tab configuration
• Mounting Type: Surface Mount compatibility required
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited) preferred for handling consistency

The substitute part IPD30N03S2L20ATMA1 meets these criteria through equivalent or superior electrical ratings and identical package configuration.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: IPD30N03S2L20ATMA1

The IPD30N03S2L20ATMA1 is classified as Active product status, ensuring long-term availability and supply chain continuity compared to the Obsolete IRLR3714ZPBF. Both devices are manufactured by Infineon Technologies and share identical package configuration (TO-252-3 DPAK), enabling direct PCB footprint compatibility without layout modifications.

Electrical Considerations:

The substitute device features a higher Vdss rating (30V vs. 20V), providing enhanced voltage margin for the original 20V application. However, the continuous drain current rating is lower (30A vs. 37A), requiring verification that the application's maximum current demand does not exceed 30A. The on-state resistance is higher (20 mOhm vs. 15 mOhm), which will result in increased power dissipation under identical operating conditions. The substitute's superior power dissipation rating (60W vs. 35W) provides thermal headroom to accommodate this increase.

Gate charge is significantly higher in the substitute (19 nC vs. 7.1 nC), necessitating confirmation that the gate driver circuit possesses sufficient current capacity and switching speed to accommodate the increased charge transfer without degrading switching performance.

Compliance and Certifications:

Both devices maintain identical operating temperature ranges (-55°C to 175°C TJ), MSL Level 1 classification, REACH Unaffected status, and ECCN/HTSUS coding. The substitute's Active product status ensures compliance documentation and technical support availability for the duration of the design lifecycle.

Frequently Asked Questions (FAQ)

Q1: Can the IPD30N03S2L20ATMA1 directly replace the IRLR3714ZPBF without PCB modifications?

A: Yes, both devices use identical TO-252-3 (DPAK) package configuration with 2 Leads + Tab. PCB footprints are mechanically compatible, and no layout changes are required for component placement.

Q2: The substitute has lower continuous drain current (30A vs. 37A). Is this acceptable?

A: Substitution is acceptable only if the application's maximum continuous drain current does not exceed 30A. If the design requires sustained operation above 30A, the substitute is not suitable. Review the circuit's actual operating current profile to determine compatibility.

Q3: Why is the on-state resistance higher in the substitute, and what is the impact?

A: The IPD30N03S2L20ATMA1 has Rds On of 20 mOhm compared to 15 mOhm in the original. This 5 mOhm difference increases power dissipation proportionally to the square of the drain current. At 30A, the additional dissipation is approximately 4.5W. The substitute's higher power rating (60W vs. 35W) accommodates this increase, but thermal design must be re-evaluated to ensure junction temperature remains within limits.

Q4: The gate charge is significantly higher (19 nC vs. 7.1 nC). What does this mean for the gate driver?

A: Higher gate charge requires the gate driver to supply more current during switching transitions. Verify that the existing driver circuit can deliver the required charge transfer rate without exceeding its current or power limits. Insufficient driver capability may result in slower switching speeds and increased switching losses.

Q5: Are there any compliance or regulatory differences between the two parts?

A: No. Both devices share identical REACH status (REACH Unaffected), MSL Level 1 classification, ECCN (EAR99), and HTSUS coding (8541.29.0095). Regulatory and environmental compliance requirements are equivalent.

Q6: Why is the original part classified as Obsolete?

A: The IRLR3714ZPBF is no longer in active production by Infineon Technologies. The IPD30N03S2L20ATMA1 represents the current-generation equivalent within Infineon's product portfolio, offering improved thermal performance and active supply chain support.

Q7: What is the difference between the HEXFET® and OptiMOS™ series designations?

A: HEXFET® and OptiMOS™ are Infineon's technology series classifications. Both represent N-Channel MOSFET technologies with different generations and performance characteristics. The OptiMOS™ series (IPD30N03S2L20ATMA1) represents more recent technology with enhanced thermal performance, as evidenced by the higher power dissipation rating.

Q8: Can the substitute be used in applications requiring the full 37A rating?

A: No. The substitute is rated for 30A continuous drain current. Applications requiring sustained operation above 30A must use an alternative device with higher current rating. Operating the substitute above its rated current will result in thermal runaway and device failure.