IRF7233TRPBF Equivalent & Substitute Parts

Part Overview

The IRF7233TRPBF is a P-Channel MOSFET manufactured by Infineon Technologies, rated for 12V drain-to-source voltage with 9.5A continuous drain current at 25°C. This device is packaged in an 8-SO surface mount configuration and is classified as obsolete. Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, production support, and long-term component availability. Substitute parts must maintain compatibility across critical electrical parameters including voltage rating, current capacity, on-resistance characteristics, and thermal performance while accommodating the 8-SOIC package standard.

Substiute Parts

IRF7233TRPBF

Infineon TechnologiesIn Stock: 2673IRF7233TRPBF Datasheet

Current PartRFQ

AO4453

Alpha & Omega Semiconductor Inc.In Stock: 12191AO4453 Datasheet

MFR RecommendedRFQ

FDS6375

onsemiIn Stock: 80400FDS6375 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IRF7233TRPBF is determined by strict adherence to the following electrical and mechanical criteria:

Primary Substitution Criteria:

• FET Type: P-Channel topology required
• Drain-to-Source Voltage (Vdss): Minimum 12V (equal or higher rating acceptable)
• Continuous Drain Current (Id): Minimum 8A at 25°C (9.5A preferred for direct replacement)
• On-Resistance (Rds On): Maximum 24mOhm @ rated current and gate voltage (lower values acceptable)
• Power Dissipation: Minimum 2.5W (Ta)
• Package: 8-SOIC surface mount configuration
• Operating Temperature: Minimum -55°C to 150°C range
• Moisture Sensitivity: MSL 1 or equivalent

Identified Substitutes:

Group 1 – Direct Electrical Equivalent (12V Rating):

• AO4453 (Alpha & Omega Semiconductor Inc.) – Active product status, 12V/9A rating, 19mOhm Rds On, compatible 8-SOIC package

Group 2 – Higher Voltage Rating (20V Rating):

• FDS6375 (onsemi) – Active product status, 20V/8A rating, 24mOhm Rds On, compatible 8-SOIC package, extended temperature range to 175°C

Both substitutes maintain the required 8-SOIC package footprint, surface mount configuration, and MSL 1 moisture sensitivity level. Electrical parameter variations are within acceptable substitution tolerances for P-Channel MOSFET applications.

Parameter Comparison

Engineering Selection Recommendations

AO4453 Selection Rationale: The AO4453 is classified as an active product with current manufacturing support and inventory availability (12,100 pcs in stock). It provides the closest electrical match to the IRF7233TRPBF with identical 12V Vdss rating and comparable 9A continuous drain current. The on-resistance specification of 19mOhm at 9A, 4.5V is superior to the original 20mOhm specification. This substitute maintains full compatibility with the 8-SOIC package footprint and MSL 1 moisture sensitivity level. RoHS3 compliance and REACH unaffected status align with modern regulatory requirements. The AO4453 is suitable for direct replacement in applications where the original 12V rating and current capacity are specified design parameters.

FDS6375 Selection Rationale: The FDS6375 is an active product manufactured by onsemi with extensive inventory availability (80,299 pcs in stock). This substitute features a higher 20V Vdss rating, which provides additional voltage margin for applications subject to transient overvoltage conditions. The 8A continuous drain current and 24mOhm on-resistance remain within acceptable substitution parameters for P-Channel MOSFET applications. The extended operating temperature range to 175°C (versus 150°C for the original) offers thermal performance advantage in high-temperature environments. RoHS3 compliance and REACH unaffected status are confirmed. The FDS6375 is suitable for applications where voltage headroom or thermal performance enhancement is beneficial, provided circuit design accommodates the higher Vdss rating.

Compliance and Regulatory Status: Both substitute parts maintain REACH unaffected status and demonstrate RoHS3 compliance, ensuring compatibility with current environmental and regulatory standards. MSL 1 classification for both substitutes confirms unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q1: Can the AO4453 be used as a direct replacement for the IRF7233TRPBF?

A: Yes. The AO4453 meets all primary substitution criteria: identical 12V Vdss rating, comparable 9A continuous drain current (versus 9.5A original), superior 19mOhm on-resistance, identical 8-SOIC package footprint, and matching -55°C to 150°C operating temperature range. The AO4453 is an active product with current manufacturing support, making it the preferred direct replacement option.

Q2: What is the advantage of selecting the FDS6375 over the AO4453?

A: The FDS6375 provides two primary advantages: (1) higher 20V Vdss rating, offering additional voltage margin for transient protection, and (2) extended operating temperature range to 175°C, providing thermal performance benefit in high-temperature applications. The FDS6375 is suitable when circuit design permits the higher voltage rating and thermal performance is a design consideration.

Q3: Are both substitute parts compatible with the original 8-SOIC package footprint?

A: Yes. Both the AO4453 and FDS6375 are packaged in 8-SOIC (0.154", 3.90mm Width) configuration, identical to the IRF7233TRPBF. PCB layout and footprint modifications are not required for either substitute.

Q4: What are the key electrical differences between the substitutes?

A: The primary electrical difference is the Vdss rating: AO4453 maintains 12V (matching the original), while FDS6375 provides 20V. Continuous drain current differs slightly: AO4453 at 9A versus FDS6375 at 8A. On-resistance specifications are comparable: AO4453 at 19mOhm and FDS6375 at 24mOhm. Gate threshold voltage (Vgs(th)) is higher for FDS6375 (1500mV) compared to AO4453 (900mV) and the original (600mV), which may affect gate drive circuit requirements in applications with marginal gate voltage margins.

Q5: Are moisture sensitivity levels equivalent between the main part and substitutes?

A: Yes. All three parts are classified as MSL 1 (Unlimited), indicating unlimited shelf life under standard storage conditions. No additional moisture control measures are required during handling or storage.

Q6: Do the substitute parts meet current regulatory compliance standards?

A: Yes. Both AO4453 and FDS6375 are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original IRF7233TRPBF is REACH unaffected; RoHS status was not specified in the provided data.

Q7: Which substitute should be selected for new design implementations?

A: For new designs, the AO4453 is recommended as the primary choice due to its active product status, direct electrical equivalence to the original specification, and current manufacturing support. The FDS6375 should be selected only when the higher voltage rating or extended temperature range provides specific design benefits.