AO4425L P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The AO4425L is a P-Channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) rated for 38V drain-to-source voltage with 14A continuous drain current capability. This device is packaged in an 8-SOIC surface mount configuration and is designed for applications requiring moderate power dissipation in compact form factors.

The AO4425L carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

AO4425L

Alpha & Omega Semiconductor Inc.In Stock: 1248AO4425L Datasheet

Current PartRFQ

AO4425

Alpha & Omega Semiconductor Inc.In Stock: 18721AO4425 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AO4425L is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Must Match):

• FET Type: P-Channel
• Drain to Source Voltage (Vdss): 38V
• Continuous Drain Current (Id): 14A @ 25°C
• On-Resistance (Rds On): 10 mOhm @ 14A, 20V
• Gate Threshold Voltage (Vgs(th)): 3.5V @ 250µA
• Gate Charge (Qg): 63 nC @ 10V
• Maximum Gate Voltage (Vgs): ±25V
• Input Capacitance (Ciss): 3800 pF @ 20V
• Power Dissipation: 3.1W (Ta)
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Package Type: 8-SOIC (0.154", 3.90mm Width)

The AO4425 is identified as a parametric equivalent substitute. Both parts are manufactured by Alpha & Omega Semiconductor Inc. and share identical electrical specifications and package geometry. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The AO4425 serves as a direct parametric equivalent to the AO4425L. Both devices exhibit identical electrical characteristics and mechanical specifications across all critical parameters including voltage rating, current capacity, on-resistance, and thermal performance.

Product Status Consideration: The AO4425L is classified as Obsolete, while the AO4425 maintains Active product status. Selection of the AO4425 ensures access to current manufacturing inventory and ongoing supplier support.

Compliance and Certification: The AO4425 is ROHS3 Compliant, providing enhanced environmental and regulatory compliance compared to the AO4425L specification. Both parts maintain REACH Unaffected status and carry identical ECCN (EAR99) and HTSUS (8541.29.0095) classifications.

Packaging Consideration: The AO4425L is supplied in tube packaging, while the AO4425 is available in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes and high-volume production environments. Tube packaging may require manual handling or conversion for automated placement equipment.

Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can the AO4425 be used as a direct replacement for the AO4425L in existing designs?

A: Yes. The AO4425 is electrically and mechanically identical to the AO4425L across all specified parameters. No circuit modifications or design changes are required for substitution.

Q: What is the difference between the AO4425L and AO4425?

A: The primary differences are packaging format (tube versus Tape & Reel) and product status (Obsolete versus Active). Electrical specifications and physical package dimensions are identical.

Q: Why is the AO4425L marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support for this specific part number. The AO4425 represents the current active equivalent.

Q: Is Tape & Reel packaging compatible with my assembly process?

A: Tape & Reel is the standard packaging format for automated surface mount assembly. If your process currently uses tube packaging, conversion to Tape & Reel may require equipment adjustment or supplier coordination. Consult your assembly equipment specifications.

Q: Are there any compliance differences between AO4425L and AO4425?

A: The AO4425 is ROHS3 Compliant, providing enhanced regulatory compliance. Both parts maintain REACH Unaffected status. Verify compliance requirements for your specific application and regulatory jurisdiction.

Q: What is the inventory status for these parts?

A: The AO4425L has 1,180 pieces in stock (Obsolete status). The AO4425 has 18,679 pieces in stock (Active status), providing significantly greater availability for new orders and production requirements.

Q: Can I mix AO4425L and AO4425 parts in the same production batch?

A: Yes. Both parts are electrically and mechanically equivalent. However, verify that your quality assurance and traceability procedures accommodate multiple part numbers for the same functional position.

Q: What is the MSL rating for these parts?

A: Both the AO4425L and AO4425 carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints. Standard handling and storage procedures apply.