AOD4136 Equivalent & Substitute Parts

Part Overview

The AOD4136 is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 25V drain-to-source voltage with 25A continuous drain current in a Surface Mount TO-252 (DPAK) package. This device is classified as Obsolete, making identification of equivalent and substitute parts necessary for ongoing production support, design updates, and inventory management. The AOD4136 operates across a wide temperature range of -55°C to 175°C (TJ) and is suitable for applications requiring moderate voltage and current switching capabilities in compact surface mount form factors.

Substiute Parts

AOD4136

Alpha & Omega Semiconductor Inc.In Stock: 5232AOD4136 Datasheet

Current PartRFQ

AOD480

Alpha & Omega Semiconductor Inc.In Stock: 19766AOD480 Datasheet

MFR RecommendedRFQ

IRLR8259TRPBF

Infineon TechnologiesIn Stock: 46290IRLR8259TRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOD4136 is determined by strict alignment of electrical and mechanical parameters within the N-Channel MOSFET category. The critical parameters governing substitution eligibility are:

Electrical Compatibility Criteria:

• Drain-to-Source Voltage (Vdss) must equal or exceed 25V
• Continuous Drain Current (Id) must equal or exceed 25A at 25°C
• On-State Resistance (Rds On) must not exceed the maximum specified value to ensure thermal performance equivalence
• Gate Threshold Voltage (Vgs(th)) must fall within compatible operating ranges
• Operating temperature range must encompass -55°C to 175°C (TJ)

Mechanical Compatibility Criteria:

• Package type must be TO-252 (DPAK) Surface Mount configuration
• Pin configuration must maintain 2 Leads + Tab (SC-63) standard

The AOD480 qualifies as a manufacturer-recommended substitute with higher voltage rating (30V) and equivalent current handling (25A), maintaining the same package footprint. The IRLR8259TRPBF qualifies as an alternative substitute with superior current capacity (57A) and lower on-state resistance (8.7mOhm), also in TO-252 package configuration, though from a different manufacturer (Infineon Technologies).

Parameter Comparison

Engineering Selection Recommendations

AOD480 Selection Rationale: The AOD480 is the manufacturer-recommended substitute from Alpha & Omega Semiconductor Inc. It maintains the same N-Channel MOSFET technology, identical continuous drain current rating (25A), and identical package configuration (TO-252 DPAK). The AOD480 provides a higher voltage rating (30V versus 25V), offering improved voltage margin for applications operating near the AOD4136 specification limit. Both devices share identical gate threshold voltage (2.5V @ 250µA), identical maximum gate voltage (±20V), and identical operating temperature range (-55°C to 175°C). The AOD480 is classified as Not For New Designs, indicating it remains available for legacy system support. RoHS3 compliance is confirmed for the AOD480, supporting environmental regulatory requirements.

IRLR8259TRPBF Selection Rationale: The IRLR8259TRPBF is an alternative substitute manufactured by Infineon Technologies under the HEXFET® series. This device maintains the same 25V drain-to-source voltage rating and TO-252 package configuration as the AOD4136. The IRLR8259TRPBF provides significantly higher continuous drain current capacity (57A versus 25A) and superior on-state resistance performance (8.7mOhm versus 11mOhm), resulting in lower power dissipation and improved thermal characteristics. The IRLR8259TRPBF is classified as Not For New Designs and carries RoHS3 compliance certification. This device is suitable for applications requiring enhanced current handling or thermal performance within the same voltage and package constraints.

Compliance and Regulatory Status: Both substitute parts maintain REACH Unaffected status and EAR99 export classification, consistent with the AOD4136. Moisture Sensitivity Level (MSL) remains at 1 (Unlimited) for all three devices, ensuring equivalent handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the AOD480 directly replace the AOD4136 in existing designs?

A: The AOD480 is electrically compatible with the AOD4136 for applications operating at or below 25V. The AOD480 provides a higher voltage rating (30V), which does not create incompatibility. Both devices share identical continuous drain current (25A), identical package configuration (TO-252 DPAK), identical gate threshold voltage (2.5V), and identical operating temperature range (-55°C to 175°C). Pin-for-pin compatibility is maintained. The AOD480 is suitable for direct substitution in legacy designs.

Q: What are the key differences between the AOD480 and IRLR8259TRPBF?

A: The primary differences are manufacturer origin and current capacity. The AOD480 is manufactured by Alpha & Omega Semiconductor Inc. with a 25A continuous drain current rating, while the IRLR8259TRPBF is manufactured by Infineon Technologies with a 57A continuous drain current rating. The IRLR8259TRPBF exhibits lower on-state resistance (8.7mOhm versus 23mOhm for AOD480), resulting in superior thermal performance. Both devices maintain the same 25V drain-to-source voltage rating and TO-252 package configuration. Selection between these substitutes depends on application current requirements and thermal management constraints.

Q: Are there package compatibility concerns when substituting the AOD4136?

A: Both substitute parts utilize the TO-252 (DPAK) Surface Mount package configuration with identical pin layout (2 Leads + Tab, SC-63 standard). Package footprints are mechanically compatible, and no PCB layout modifications are required. The TO-252AA variant used by the IRLR8259TRPBF maintains dimensional compatibility with the standard TO-252 package.

Q: What is the significance of the "Not For New Designs" product status for substitute parts?

A: The "Not For New Designs" classification indicates that these parts remain available for existing production and legacy system support but are not recommended for new product development. This status does not affect substitution validity for ongoing production of existing designs. For new designs, consultation with component suppliers regarding long-term availability and alternative solutions is recommended.

Q: How do the on-state resistance values affect substitution decisions?

A: On-state resistance (Rds On) directly impacts power dissipation and thermal performance. The AOD4136 specifies 11mOhm @ 20A, 10V. The AOD480 specifies 23mOhm @ 20A, 10V, resulting in approximately 2.1 times higher resistance and proportionally higher power dissipation. The IRLR8259TRPBF specifies 8.7mOhm @ 21A, 10V, providing superior performance. Applications with tight thermal budgets or high switching frequencies may benefit from the IRLR8259TRPBF. Applications with relaxed thermal requirements can accommodate the AOD480 without performance degradation.

Q: Are there regulatory or compliance differences between the three devices?

A: All three devices maintain identical regulatory status: REACH Unaffected, EAR99 export classification, and Moisture Sensitivity Level 1 (Unlimited). The AOD480 and IRLR8259TRPBF both carry RoHS3 compliance certification. No compliance barriers exist for substitution.

Q: What inventory considerations apply to these substitute parts?

A: The AOD4136 has 5,200 pieces in stock (Obsolete status). The AOD480 has 19,688 pieces in stock (Not For New Designs). The IRLR8259TRPBF has 46,209 pieces in stock (Not For New Designs). Higher inventory levels for substitute parts support extended production runs and legacy system maintenance.