IRF7338PBF Equivalent & Substitute Parts

Part Overview

The IRF7338PBF is an obsolete MOSFET array manufactured by Infineon Technologies, featuring integrated N-channel and P-channel MOSFETs in a compact 8-SOIC surface mount package. This device operates at 12V with continuous drain currents of 6.3A (N-channel) and 3A (P-channel), designed for logic-level gate applications. Due to its obsolete product status, equivalent and substitute parts are necessary for ongoing production, maintenance, and new design implementations where this component is specified or required.

Substiute Parts

IRF7338PBF

Infineon TechnologiesIn Stock: 4584IRF7338PBF Datasheet

Current PartRFQ

SP8M10TB

Rohm SemiconductorIn Stock: 15385SP8M10TB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRF7338PBF is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Configuration: N and P-Channel dual MOSFET array
• Drain to Source Voltage (Vdss): Minimum 12V (higher voltage ratings are acceptable for backward compatibility)
• Continuous Drain Current (Id): Minimum 6.3A (N-channel) and 3A (P-channel) at 25°C
• Logic Level Gate operation capability
• Gate Charge (Qg) and Input Capacitance (Ciss) within acceptable ranges for switching performance

Mechanical Compatibility Criteria:

• Surface Mount package type
• 8-pin SOIC or equivalent footprint (0.154", 3.90mm width)
• Moisture Sensitivity Level (MSL) 1 or equivalent

Compliance Criteria:

• REACH compliance status
• RoHS compliance status (where applicable)

The SP8M10TB from Rohm Semiconductor meets these substitution criteria with the following characteristics: it maintains N and P-Channel configuration, exceeds the voltage rating (30V vs. 12V), provides equal or superior continuous drain currents (7A/4.5A vs. 6.3A/3A), operates with logic level gates, and is housed in an 8-SOP surface mount package compatible with the original footprint. The SP8M10TB is an active product with full compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SP8M10TB

The SP8M10TB from Rohm Semiconductor is the recommended substitute for the obsolete IRF7338PBF based on the following engineering criteria:

1. Product Status: The SP8M10TB is an active product with full manufacturing support and availability, addressing the obsolescence of the IRF7338PBF.

2. Electrical Performance: The SP8M10TB exceeds the electrical specifications of the IRF7338PBF across all critical parameters. The higher Vdss rating (30V vs. 12V) provides additional design margin for voltage transients. The continuous drain currents (7A/4.5A) meet or exceed the original specifications (6.3A/3A). The lower on-resistance (25mOhm vs. 34mOhm) improves power efficiency.

3. Functional Equivalence: Both devices feature N and P-Channel MOSFET arrays with logic level gate operation in identical 8-pin surface mount packages. Gate charge and input capacitance parameters are equivalent, ensuring compatible switching characteristics.

4. Compliance and Certifications: The SP8M10TB carries ROHS3 compliance certification and maintains REACH unaffected status, meeting current regulatory requirements. The MSL rating of 1 (Unlimited) matches the original part.

5. Package Compatibility: The 8-SOP package maintains the same footprint dimensions (0.154", 3.90mm width) as the original 8-SOIC package, enabling direct PCB layout compatibility without redesign.

Selection Basis: This recommendation is based strictly on product status (active vs. obsolete), compliance certifications (ROHS3), and provided electrical and mechanical parameters. The SP8M10TB provides a direct functional replacement with enhanced specifications and full manufacturing support.

Frequently Asked Questions (FAQ)

Q1: Can the SP8M10TB directly replace the IRF7338PBF on existing PCBs?

A: Yes. The SP8M10TB is mechanically and electrically compatible with the IRF7338PBF. Both devices use 8-pin surface mount packages with identical footprint dimensions (0.154", 3.90mm width). The SP8M10TB's electrical specifications meet or exceed the original part across all critical parameters, including Vdss, continuous drain current, on-resistance, and gate charge.

Q2: What are the key electrical differences between the IRF7338PBF and SP8M10TB?

A: The SP8M10TB has a higher Drain to Source Voltage rating (30V vs. 12V), higher continuous drain currents (7A/4.5A vs. 6.3A/3A), and lower on-resistance (25mOhm vs. 34mOhm). Gate charge and input capacitance are equivalent. These differences represent improvements in performance and design margin.

Q3: Are there any compliance or certification differences?

A: The SP8M10TB carries ROHS3 compliance certification, while the IRF7338PBF does not specify RoHS status. Both parts maintain REACH unaffected status and MSL 1 (Unlimited) ratings. The SP8M10TB meets current regulatory requirements for new designs and production.

Q4: Why is the IRF7338PBF obsolete?

A: The IRF7338PBF is listed as obsolete by Infineon Technologies. Obsolescence typically results from product lifecycle management, market consolidation, or transition to newer technology platforms. The SP8M10TB represents an active alternative from a different manufacturer.

Q5: Can the higher voltage rating (30V) of the SP8M10TB cause issues in a 12V application?

A: No. A higher Vdss rating provides additional design margin and does not negatively impact operation in lower voltage applications. The SP8M10TB operates safely at 12V and below. The higher voltage rating is a design advantage, not a limitation.

Q6: Are the gate threshold voltages compatible?

A: Both devices feature logic level gate operation. The IRF7338PBF has Vgs(th) of 1.5V @ 250µA, while the SP8M10TB has Vgs(th) of 2.5V @ 1mA. Both values are within the logic level gate specification range and are compatible with standard digital logic signal levels.

Q7: What is the package compatibility between 8-SOIC and 8-SOP?

A: The 8-SOIC and 8-SOP packages are mechanically equivalent for PCB footprint purposes. Both maintain the same pin pitch, body width (0.154", 3.90mm), and pin configuration. The SP8M10TB can be used as a direct replacement without PCB layout modifications.

Q8: Is the SP8M10TB available in sufficient quantities?

A: According to current inventory data, the SP8M10TB is available with 15,365 pieces in stock as a new original part from Rohm Semiconductor, providing adequate supply for production and maintenance applications.