IRF8910PBF Equivalent & Substitute Parts

Part Overview

The IRF8910PBF is a dual N-channel MOSFET array manufactured by Infineon Technologies, designed for surface mount applications requiring logic level gate control. This device integrates two N-channel MOSFETs in a single 8-SOIC package with a maximum drain-source voltage rating of 20V and continuous drain current capability of 10A at 25°C.

The IRF8910PBF has been discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Substiute Parts

IRF8910PBF

Infineon TechnologiesIn Stock: 4418IRF8910PBF Datasheet

Current PartRFQ

AO4806

Alpha & Omega Semiconductor Inc.In Stock: 6221AO4806 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRF8910PBF is determined by strict alignment of the following critical parameters:

Electrical Compatibility Requirements:

• Dual N-channel MOSFET configuration (2 N-Channel)
• Drain-source voltage rating of 20V or higher
• Continuous drain current capability of 10A or higher at 25°C
• On-resistance (Rds On) at rated conditions not exceeding the original specification by more than 10% to maintain thermal performance
• Logic level gate operation for direct gate drive compatibility
• Maximum power dissipation of 2W or higher

Mechanical & Package Compatibility Requirements:

• 8-SOIC surface mount package with 0.154" (3.90mm) width
• Operating temperature range of -55°C to 150°C (TJ) or wider
• RoHS3 compliance and MSL 1 rating for manufacturing compatibility

Regulatory & Supply Requirements:

• Active product status or equivalent availability
• REACH unaffected or compliant status
• EAR99 classification for export control consistency

The AO4806 from Alpha & Omega Semiconductor Inc. meets these substitution criteria and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: AO4806

The AO4806 is the manufacturer-recommended equivalent for the IRF8910PBF. Selection of this substitute is based on the following engineering criteria:

Electrical Equivalence: The AO4806 maintains the same drain-source voltage rating (20V), package configuration (dual N-channel), and power dissipation capability (2W). On-resistance values are within 5% variance at comparable operating points, ensuring thermal performance remains within acceptable design margins. The lower gate threshold voltage (1V vs. 2.55V) provides improved logic level gate drive compatibility with standard 3.3V and 5V control circuits.

Package & Mechanical Compatibility: Both devices utilize identical 8-SOIC surface mount packaging with 0.154" (3.90mm) width, enabling direct PCB layout compatibility without redesign. Operating temperature ranges are identical (-55°C to 150°C TJ), supporting the same thermal operating envelope.

Regulatory & Supply Chain Compliance: The AO4806 maintains ROHS3 compliance and MSL 1 rating, ensuring compatibility with current manufacturing processes and supply chain requirements. Active product status at Alpha & Omega Semiconductor Inc. provides long-term availability and supply continuity compared to the discontinued IRF8910PBF.

Design Considerations: Higher gate charge (17.9nC vs. 11nC) and input capacitance (1810pF vs. 960pF) in the AO4806 require verification of gate drive circuit current capability and switching frequency performance in the target application. These parameter differences do not preclude substitution but require confirmation that existing gate drive circuits can accommodate the increased capacitive loading.

Frequently Asked Questions (FAQ)

Q: Can the AO4806 be used as a direct replacement for the IRF8910PBF without PCB modifications?

A: Yes. Both devices share identical 8-SOIC package geometry (0.154", 3.90mm width) and pinout configuration. Direct PCB substitution is possible without layout changes. However, gate drive circuit performance should be verified due to differences in gate charge and input capacitance.

Q: What are the key electrical differences between the IRF8910PBF and AO4806?

A: The primary differences are gate threshold voltage (AO4806 is lower at 1V vs. 2.55V), gate charge (AO4806 is higher at 17.9nC vs. 11nC), and input capacitance (AO4806 is higher at 1810pF vs. 960pF). On-resistance values are within 5% variance. Drain-source voltage, power rating, and operating temperature range are identical.

Q: Is the AO4806 available in the same packaging options as the IRF8910PBF?

A: The AO4806 is supplied in Tape & Reel (TR) packaging. The IRF8910PBF packaging format was not specified in the original documentation. Both devices use the 8-SOIC surface mount package type.

Q: What compliance certifications apply to the AO4806?

A: The AO4806 is ROHS3 compliant, carries MSL 1 (Unlimited) moisture sensitivity rating, is REACH unaffected, and is classified as EAR99 for export control purposes. These certifications match the IRF8910PBF specifications.

Q: Will the higher gate charge of the AO4806 affect switching performance?

A: Higher gate charge (17.9nC vs. 11nC) requires proportionally more gate drive current to achieve the same switching speed. Gate drive circuits must be verified to supply adequate current at the target switching frequency. Thermal performance and power dissipation should be re-evaluated in the specific application circuit.

Q: Is the AO4806 suitable for logic level gate applications?

A: Yes. The AO4806 is specified as a logic level gate device with a gate threshold voltage of 1V at 250µA, making it compatible with standard 3.3V and 5V logic control signals. The lower threshold voltage compared to the IRF8910PBF may provide improved noise margin in gate drive circuits.

Q: What is the product availability status of the AO4806?

A: The AO4806 is an active product from Alpha & Omega Semiconductor Inc. with 6175 pieces reported in stock as new original inventory, providing immediate availability compared to the discontinued IRF8910PBF.