STP8NM60 N-Channel MOSFET 650V 8A Equivalent & Substitute Parts

Part Overview

The STP8NM60 is an N-Channel MOSFET manufactured by STMicroelectronics, rated for 650V drain-to-source voltage with 8A continuous drain current at 25°C. This device is packaged in TO-220-3 through-hole configuration and belongs to the MDmesh™ series. The part is currently listed as obsolete, making identification of equivalent and substitute components necessary for ongoing design support and production continuity. Substitute parts must maintain functional compatibility across critical electrical parameters including voltage rating, current capacity, and thermal characteristics while accommodating the through-hole TO-220 package standard.

Key Parameters

Parameter	STP8NM60 Value	Unit
Drain-to-Source Voltage (Vdss)	650	V
Continuous Drain Current (Id) @ 25°C	8	A
On-State Resistance (Rds On) @ 2.5A, 10V	1	Ω
Gate Threshold Voltage (Vgs(th)) @ 250µA	5	V
Gate Charge (Qg) @ 10V	18	nC
Power Dissipation (Max)	100	W
Operating Temperature Range	-55 to 150	°C
Package Type	TO-220-3	Through Hole
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the STP8NM60 is determined by the following critical parameters:

Voltage Rating Compatibility: Substitute parts must maintain a drain-to-source voltage (Vdss) rating equal to or greater than 650V to ensure safe operation in the original circuit application.

Current Capacity: Substitute parts must support continuous drain current (Id) at 25°C equal to or greater than 8A to handle the design load requirements.

On-State Resistance: Rds On values must be comparable to the original 1Ω specification to maintain similar power dissipation and thermal performance characteristics.

Package Compatibility: All substitute parts must use the TO-220-3 through-hole package to ensure mechanical and thermal interface compatibility with existing PCB designs and heat sink mounting arrangements.

Operating Temperature Range: Substitute parts must support the full -55°C to 150°C operating temperature range to maintain functional reliability across all environmental conditions.

Compliance Standards: Substitute parts must maintain ROHS3 compliance and equivalent regulatory certifications to satisfy procurement and manufacturing requirements.

The substitute parts identified below are grouped based on their ability to meet these critical parameters while accommodating minor variations in secondary electrical characteristics such as gate charge and input capacitance.

Parameter Comparison

Parameter	STP8NM60	IRFBC40PBF	IRFBC40LCPBF	IRFBC40APBF	IPP80R1K2P7XKSA1
Manufacturer	STMicroelectronics	Vishay Siliconix	Vishay Siliconix	Vishay Siliconix	Infineon Technologies
Vdss (V)	650	600	600	600	800
Id @ 25°C (A)	8	6.2	6.2	6.2	4.5
Rds On @ 10V (Ω)	1.0 @ 2.5A	1.2 @ 3.7A	1.2 @ 3.7A	1.2 @ 3.7A	1.2 @ 1.7A
Vgs(th) @ 250µA (V)	5	4	4	4	3.5
Qg @ 10V (nC)	18	60	39	42	11
Power Dissipation (W)	100	125	125	125	37
Operating Temperature (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150
Package	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Vishay Siliconix IRFBC40 Series):

The IRFBC40PBF, IRFBC40LCPBF, and IRFBC40APBF represent the most direct functional alternatives to the STP8NM60. All three variants are manufactured by Vishay Siliconix, maintain active product status, and are available in high inventory quantities. These parts operate at 600V drain-to-source voltage, which is 50V lower than the original specification but remains within acceptable operating margins for most applications. Continuous drain current is rated at 6.2A, representing a 22.5% reduction from the original 8A specification. Power dissipation capability is rated at 125W, exceeding the original 100W specification. All three variants maintain the TO-220-3 package configuration and full -55°C to 150°C operating temperature range.

The IRFBC40LCPBF is recommended as the primary choice among the three IRFBC40 variants due to REACH Unaffected status and moderate gate charge specification (39 nC), providing balanced performance characteristics. The IRFBC40PBF offers the highest inventory availability (7365 units) but carries REACH Affected designation. The IRFBC40APBF also carries REACH Affected status.

Secondary Substitute (Infineon Technologies IPP80R1K2P7XKSA1):

The IPP80R1K2P7XKSA1 from Infineon Technologies represents an alternative with enhanced voltage rating (800V) but reduced current capacity (4.5A). This part belongs to the CoolMOS™ P7 series and maintains active product status. The 800V voltage rating provides additional design margin for high-voltage applications. However, the 4.5A continuous drain current represents a 43.75% reduction from the original specification, making this substitute suitable only for applications with lower current requirements. Gate charge is significantly lower at 11 nC, reducing switching losses. Power dissipation is limited to 37W, substantially below the original 100W specification. This part is packaged in PG-TO220-3 configuration, maintaining mechanical compatibility with standard TO-220-3 mounting.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification, matching the original part's regulatory status. The IRFBC40LCPBF is preferred for applications requiring REACH Unaffected certification. Moisture sensitivity level remains at MSL 1 (Unlimited) across all alternatives, matching the original specification.

Frequently Asked Questions (FAQ)

Q: Can the IRFBC40 series directly replace the STP8NM60 in all applications?

A: The IRFBC40 series (IRFBC40PBF, IRFBC40LCPBF, IRFBC40APBF) can replace the STP8NM60 in applications where the 600V voltage rating and 6.2A current capacity are sufficient. The 50V voltage reduction and 1.8A current reduction must be evaluated against specific circuit requirements. Power dissipation capability is higher (125W vs. 100W), providing thermal margin. All parts maintain identical operating temperature range and TO-220-3 package compatibility.

Q: What are the key differences between IRFBC40PBF, IRFBC40LCPBF, and IRFBC40APBF?

A: All three variants share identical electrical specifications: 600V Vdss, 6.2A Id, 1.2Ω Rds On, and 125W power dissipation. Primary differences exist in gate charge specifications (60 nC, 39 nC, and 42 nC respectively) and regulatory compliance status. IRFBC40LCPBF carries REACH Unaffected designation, while IRFBC40PBF and IRFBC40APBF are REACH Affected. Gate charge variation affects switching speed and driver circuit requirements.

Q: Is the Infineon IPP80R1K2P7XKSA1 suitable as a direct replacement?

A: The IPP80R1K2P7XKSA1 is not a direct replacement due to significantly reduced current capacity (4.5A vs. 8A) and power dissipation (37W vs. 100W). This part is suitable only for applications with lower current demands. The higher voltage rating (800V) provides additional design margin for high-voltage circuits. The substantially lower gate charge (11 nC) reduces switching losses, which may benefit high-frequency switching applications.

Q: Does package compatibility affect substitution?

A: All substitute parts use TO-220-3 through-hole packaging, maintaining mechanical and thermal interface compatibility with existing PCB designs and heat sink mounting arrangements. The Infineon part uses PG-TO220-3 designation but maintains identical physical dimensions and pin configuration as standard TO-220-3 packages.

Q: What compliance certifications should I verify for my application?

A: All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification, matching the original STP8NM60. For applications requiring REACH compliance, the IRFBC40LCPBF is designated REACH Unaffected, while IRFBC40PBF and IRFBC40APBF are REACH Affected. Moisture sensitivity level is MSL 1 (Unlimited) for all parts, indicating no moisture sensitivity restrictions.

Q: How do gate charge differences affect circuit design?

A: Gate charge (Qg) values range from 11 nC (IPP80R1K2P7XKSA1) to 60 nC (IRFBC40PBF). Higher gate charge requires greater driver circuit current and longer switching times. The IRFBC40LCPBF at 39 nC provides moderate gate charge, balancing switching speed with driver circuit requirements. The Infineon part's 11 nC specification enables faster switching transitions, beneficial for high-frequency applications but requiring careful driver circuit design.

Q: What inventory considerations apply to these substitutes?

A: The IRFBC40PBF offers the highest inventory availability at 7365 units. The IRFBC40LCPBF provides 2500 units, and IRFBC40APBF provides 1552 units. The Infineon IPP80R1K2P7XKSA1 has 911 units available. The original STP8NM60 has 1478 units in stock but is obsolete, making transition to active alternatives necessary for long-term supply continuity.

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