STP5NB60 Equivalent & Substitute Parts

Part Overview

The STP5NB60 is an N-Channel MOSFET manufactured by STMicroelectronics, rated for 600V drain-to-source voltage with 5A continuous drain current at 25°C. This device is housed in a TO-220-3 through-hole package and is designed for high-voltage switching applications requiring 100W power dissipation capability.

The STP5NB60 carries an Obsolete product status, making it necessary to identify functionally equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain compatibility with existing circuit designs while meeting the same electrical and thermal specifications.

Substiute Parts

STP5NB60

STMicroelectronicsIn Stock: 15242STP5NB60 Datasheet

Current PartRFQ

AOT4N60

Alpha & Omega Semiconductor Inc.In Stock: 1602AOT4N60 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the STP5NB60 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Drain-to-Source Voltage (Vdss) must equal or exceed 600V
• Continuous Drain Current (Id) must meet or exceed 5A at 25°C
• On-State Resistance (Rds On) must not exceed 2Ohm at specified gate voltage
• Power Dissipation capability must support 100W (Tc) minimum
• Gate-Source Voltage (Vgs) rating must accommodate ±30V operation

Mechanical Compatibility Requirements:

• Package type must be TO-220-3 through-hole configuration
• Pinout must be compatible with standard TO-220 N-Channel MOSFET layouts

Functional Compatibility:

• FET technology must be Metal Oxide MOSFET (MOSFET)
• Channel type must be N-Channel

The AOT4N60 qualifies as a substitute based on matching Vdss (600V), compatible package (TO-220-3), and equivalent gate voltage specifications. However, the continuous drain current rating of 4A is lower than the 5A specification of the STP5NB60, requiring circuit-level evaluation for applications demanding the full 5A rating.

Parameter Comparison

Engineering Selection Recommendations

Product Status Considerations:

The STP5NB60 is classified as Obsolete, indicating discontinued manufacturing and limited availability. The AOT4N60 is classified as Not For New Designs, indicating restricted use for ongoing production and maintenance applications only.

For new design implementations, neither part is recommended based on product status alone. However, for legacy system maintenance and replacement of existing STP5NB60 installations, the AOT4N60 provides electrical and mechanical compatibility within defined operational limits.

Compliance and Certification:

The STP5NB60 is RoHS non-compliant. The AOT4N60 is ROHS3 compliant, offering improved environmental and regulatory alignment for applications subject to RoHS requirements. Both parts carry REACH Unaffected status and EAR99 export classification.

Current Rating Limitation:

The AOT4N60 continuous drain current rating of 4A is 1A lower than the STP5NB60 specification of 5A. Applications operating at or near the 5A maximum rating require circuit-level analysis to confirm acceptable performance at the reduced current specification.

Thermal Performance:

Both devices support equivalent power dissipation (100W for STP5NB60, 104W for AOT4N60) and maximum junction temperature (150°C). The AOT4N60 provides extended minimum operating temperature (-55°C versus unspecified minimum for STP5NB60).

Frequently Asked Questions (FAQ)

Q: Can the AOT4N60 directly replace the STP5NB60 in all applications?

A: Direct replacement is possible for applications operating at or below 4A continuous drain current. Applications requiring the full 5A rating must be re-evaluated. Both devices share identical TO-220-3 package pinouts and 600V Vdss ratings, ensuring mechanical and voltage-level compatibility.

Q: What is the significance of the 1A current rating difference between these parts?

A: The AOT4N60 is rated for 4A continuous drain current versus 5A for the STP5NB60. This difference affects maximum allowable circuit current. Applications designed for 5A operation must either operate at reduced current or select alternative parts with higher current ratings.

Q: Are there packaging differences between the STP5NB60 and AOT4N60?

A: Both devices use TO-220-3 through-hole packages with identical pinout configurations. The STP5NB60 is supplied in standard packaging, while the AOT4N60 is supplied in tube packaging. This difference affects handling and storage but does not impact electrical or mechanical compatibility.

Q: How do the on-state resistance specifications compare?

A: The STP5NB60 specifies 2Ohm Rds On at 2.5A and 10V gate voltage. The AOT4N60 specifies 2.2Ohm at 2A and 10V gate voltage. The AOT4N60 exhibits slightly higher on-state resistance, resulting in marginally increased power dissipation during conduction.

Q: What is the impact of the lower gate charge specification in the AOT4N60?

A: The AOT4N60 gate charge is 18nC at 10V versus 30nC for the STP5NB60. Lower gate charge reduces driver circuit power requirements and enables faster switching transitions, potentially improving overall circuit efficiency.

Q: Does the RoHS compliance difference affect substitution decisions?

A: The AOT4N60 is ROHS3 compliant while the STP5NB60 is RoHS non-compliant. For applications subject to RoHS regulations, the AOT4N60 provides regulatory compliance. For legacy systems without RoHS requirements, this difference is not a limiting factor.

Q: Are there thermal management considerations when substituting these parts?

A: Both devices support 100W+ power dissipation and 150°C maximum junction temperature. Thermal management requirements are equivalent. Existing heatsink and thermal interface designs are compatible between the two parts.