IRF9910PBF Equivalent & Substitute Parts

Part Overview

The IRF9910PBF 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 to 12A per channel at 25°C.

The IRF9910PBF has been discontinued at DiGi Electronics. Equivalent substitute parts are available from alternative manufacturers that maintain compatibility across the critical electrical and mechanical parameters required for direct board-level replacement.

Substiute Parts

IRF9910PBF

Infineon TechnologiesIn Stock: 23665IRF9910PBF Datasheet

Current PartRFQ

AO4806

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRF9910PBF are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Compatibility Criteria:

• Drain to Source Voltage (Vdss): Must equal or exceed 20V
• Configuration: Must be 2 N-Channel (Dual) MOSFET array
• FET Feature: Must support Logic Level Gate operation
• Operating Temperature Range: Must span -55°C to 150°C (TJ)
• Power Dissipation: Must support minimum 2W

Mechanical Compatibility Criteria:

• Package Type: Must be 8-SOIC with 0.154" (3.90mm) width
• Mounting Type: Must be Surface Mount
• Pin configuration: Must maintain 8-pin SOIC footprint compatibility

Regulatory Compliance:

• RoHS3 Compliance required
• MSL rating of 1 (Unlimited) required

The AO4806 from Alpha & Omega Semiconductor Inc. meets all 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 IRF9910PBF. Both devices share identical electrical ratings for Vdss (20V), power dissipation (2W), and operating temperature range (-55°C to 150°C). Both are packaged in 8-SOIC surface mount form factors with matching footprint dimensions (0.154", 3.90mm width).

The AO4806 maintains ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring regulatory and environmental compatibility. The device is currently in active production status, providing supply chain continuity.

Parameter variations between the IRF9910PBF and AO4806 exist in gate threshold voltage (Vgs(th): 2.55V versus 1V), gate charge (Qg: 11nC versus 17.9nC), and input capacitance (Ciss: 900pF versus 1810pF). These differences reflect manufacturing process variations between Infineon and Alpha & Omega technologies and do not prevent functional substitution in applications designed for the IRF9910PBF electrical specifications.

On-resistance values are comparable: IRF9910PBF at 13.4mOhm (10A, 10V) versus AO4806 at 14mOhm (9.4A, 10V), indicating equivalent thermal performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the AO4806 be used as a direct replacement for the IRF9910PBF on existing PCBs?

A: Yes. Both devices use identical 8-SOIC surface mount packaging with matching footprint dimensions (0.154", 3.90mm width). Pin configuration and electrical interface are compatible. No PCB modifications are required.

Q: What are the key electrical differences between the IRF9910PBF and AO4806?

A: The primary differences are gate threshold voltage (Vgs(th): 2.55V versus 1V), gate charge (11nC versus 17.9nC), and input capacitance (900pF versus 1810pF). Drain-source voltage rating, power dissipation, and operating temperature range are identical. On-resistance values are within 0.6mOhm of each other.

Q: Does the AO4806 meet the same compliance requirements as the IRF9910PBF?

A: Yes. The AO4806 is ROHS3 compliant with MSL rating of 1 (Unlimited), matching the IRF9910PBF compliance profile. Both devices are classified under ECCN EAR99 and HTSUS 8541.29.0095.

Q: Why is the IRF9910PBF discontinued?

A: The IRF9910PBF is discontinued at DiGi Electronics. The AO4806 provides equivalent functionality and is in active production status.

Q: Are there any thermal performance differences between these devices?

A: On-resistance specifications indicate comparable thermal performance. IRF9910PBF: 13.4mOhm @ 10A, 10V. AO4806: 14mOhm @ 9.4A, 10V. Both devices support 2W maximum power dissipation and operate across -55°C to 150°C temperature range.

Q: What is the significance of the different gate charge values?

A: Gate charge (Qg) affects switching speed and gate drive requirements. The AO4806 has higher gate charge (17.9nC versus 11nC), which may result in slightly slower switching transitions. Applications with strict switching frequency requirements should evaluate gate drive circuit compatibility.

Q: Can the AO4806 be used in high-frequency switching applications?

A: The AO4806 supports logic level gate operation and is suitable for surface mount switching applications. Higher input capacitance (1810pF versus 900pF) and gate charge (17.9nC versus 11nC) may affect switching performance in high-frequency circuits compared to the IRF9910PBF. Circuit simulation or testing is appropriate for frequency-critical designs.

Q: What packaging options are available for the AO4806?

A: The AO4806 is supplied in Tape & Reel (TR) packaging for automated assembly. The 8-SOIC package dimensions match the IRF9910PBF (0.154", 3.90mm width).