IRF3709ZCSTRL N-Channel 30V 87A MOSFET Equivalent & Substitute Parts

Part Overview

The IRF3709ZCSTRL is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 30V drain-to-source voltage with 87A continuous drain current at 25°C. This device is packaged in D2PAK (TO-263-3) surface mount configuration and is part of the HEXFET® series. The IRF3709ZCSTRL is classified as Obsolete, making identification of equivalent and substitute parts essential for ongoing production support and design continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with modified performance characteristics within acceptable application parameters.

Substiute Parts

IRF3709ZCSTRL

Infineon TechnologiesIn Stock: 1187IRF3709ZCSTRL Datasheet

Current PartRFQ

IRF3709ZSTRRPBF

Infineon TechnologiesIn Stock: 3231IRF3709ZSTRRPBF Datasheet

Parametric EquivalentRFQ

PSMN017-30BL,118

Nexperia USA Inc.In Stock: 2850PSMN017-30BL,118 Datasheet

MFR RecommendedRFQ

PSMN4R3-30BL,118

Nexperia USA Inc.In Stock: 10797PSMN4R3-30BL,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRF3709ZCSTRL is determined by the following critical parameters: drain-to-source voltage rating (Vdss), continuous drain current capability (Id), on-state resistance (Rds On), gate charge (Qg), power dissipation rating, package type, and mounting configuration. All substitute parts must maintain the same 30V Vdss rating and D2PAK surface mount package to ensure mechanical and electrical compatibility. Substitutes are grouped into two categories: parametric equivalents (identical electrical specifications) and functional alternatives (modified current or power ratings within acceptable application ranges).

Parameter Comparison

Engineering Selection Recommendations

IRF3709ZSTRRPBF (Parametric Equivalent): This part is a direct parametric equivalent to the IRF3709ZCSTRL, maintaining identical electrical specifications including 87A continuous drain current, 6.3 mOhm on-state resistance, and 79W power dissipation. The primary difference is packaging format (Tape & Reel versus bulk) and product status (Not For New Designs). This part is ROHS3 compliant, addressing environmental compliance requirements. IRF3709ZSTRRPBF is suitable for direct replacement in existing designs where the original part is unavailable.

PSMN4R3-30BL,118 (Functional Substitute - Higher Current Rating): This Nexperia part provides enhanced performance with 100A continuous drain current and 4.1 mOhm on-state resistance, representing a performance upgrade. Power dissipation increases to 103W. Gate charge increases to 41.5 nC at 10V. This part is classified as Active and ROHS3 compliant. PSMN4R3-30BL,118 is suitable for applications requiring higher current capacity or lower on-state losses than the original IRF3709ZCSTRL.

PSMN017-30BL,118 (Functional Substitute - Lower Current Rating): This Nexperia part provides reduced specifications with 32A continuous drain current and 17 mOhm on-state resistance. Power dissipation is 47W. Gate charge is 10.7 nC at 10V. This part is Obsolete but ROHS3 compliant. PSMN017-30BL,118 is suitable only for applications with reduced current requirements below 32A.

For new designs, PSMN4R3-30BL,118 is recommended due to Active product status and ROHS3 compliance. For existing production requiring direct replacement, IRF3709ZSTRRPBF maintains full electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can IRF3709ZSTRRPBF be used as a direct replacement for IRF3709ZCSTRL?

A: Yes. IRF3709ZSTRRPBF is a parametric equivalent with identical electrical specifications (87A, 6.3 mOhm, 79W). Both parts maintain the same D2PAK package and surface mount configuration. The primary difference is packaging format (Tape & Reel) and RoHS compliance status. No circuit modifications are required.

Q: What is the difference between IRF3709ZCSTRL and PSMN4R3-30BL,118?

A: PSMN4R3-30BL,118 provides higher current capacity (100A versus 87A) and lower on-state resistance (4.1 mOhm versus 6.3 mOhm), resulting in improved thermal performance. Gate charge is higher (41.5 nC versus 26 nC), requiring slightly more gate drive energy. Both maintain 30V Vdss and D2PAK packaging. PSMN4R3-30BL,118 is suitable for applications requiring enhanced current handling.

Q: Is PSMN017-30BL,118 suitable as a substitute for IRF3709ZCSTRL?

A: PSMN017-30BL,118 is not recommended as a direct substitute. This part is rated for only 32A continuous drain current, significantly below the IRF3709ZCSTRL specification of 87A. Use of this part in applications requiring 87A operation will result in device failure. PSMN017-30BL,118 is suitable only for applications with maximum current requirements below 32A.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes. All listed substitute parts use identical D2PAK (TO-263-3) surface mount packaging with the same pin configuration and thermal tab. PCB layouts designed for IRF3709ZCSTRL are mechanically compatible with IRF3709ZSTRRPBF, PSMN4R3-30BL,118, and PSMN017-30BL,118 without modification.

Q: What is the significance of RoHS compliance status?

A: IRF3709ZCSTRL is RoHS non-compliant, while all substitute parts (IRF3709ZSTRRPBF, PSMN4R3-30BL,118, PSMN017-30BL,118) are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, compliant substitutes must be selected. RoHS compliance does not affect electrical performance or functionality.

Q: Which substitute part is recommended for new designs?

A: PSMN4R3-30BL,118 is recommended for new designs. This part is classified as Active (not obsolete), ROHS3 compliant, and provides superior electrical performance with 100A current rating and 4.1 mOhm on-state resistance. Long-term availability and supply chain stability are assured for Active products.