NDF06N60ZG N-Channel 600V 7.1A MOSFET Equivalent & Substitute Parts

Part Overview

The NDF06N60ZG is an N-Channel 600V MOSFET manufactured by onsemi in a TO-220FP through-hole package. This device is rated for 7.1A continuous drain current at 25°C with a maximum power dissipation of 35W. The part is classified as obsolete, making identification of equivalent and substitute components necessary for design continuity, repair, and production planning. Substitute parts must maintain compatibility across drain-source voltage rating, continuous drain current capability, gate drive voltage, and through-hole packaging format.

Key Parameters

Parameter	NDF06N60ZG Value	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	600	V
Continuous Drain Current (Id) @ 25°C	7.1	A
Drive Voltage (Max Rds On)	10	V
Rds On (Max) @ Id, Vgs	1.2	Ohm @ 3A, 10V
Power Dissipation (Max)	35	W
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Through Hole	—
Package	TO-220FP	—

Substitute Part Grouping Explanation

Substitution of the NDF06N60ZG is determined by the following critical parameters:

Voltage Rating Compatibility: All substitute parts must maintain a Drain to Source Voltage (Vdss) rating of 600V or higher to ensure safe operation in the original circuit application.

Current Capability: The continuous drain current (Id) at 25°C must equal or exceed 7.1A to support the same load conditions. Parts with lower current ratings are not suitable substitutes.

Gate Drive Voltage: All candidates operate at 10V drive voltage, ensuring compatibility with existing gate drive circuits.

Package and Mounting: All substitute parts use through-hole TO-220 family packages (TO-220FP, TO-220F-3, TO-220FM, or PG-TO220-FP), maintaining mechanical and thermal interface compatibility.

Operating Temperature Range: All parts support the -55°C to 150°C operating range, ensuring thermal compatibility.

Substitute parts are grouped into two categories:

Category A – Direct Current Equivalents (≥7.1A): Parts meeting or exceeding the 7.1A specification with 600V or higher Vdss rating.

Category B – Reduced Current Alternatives (4.0A to 7.0A): Parts with lower current ratings suitable for applications where full 7.1A capability is not required, but voltage and package compatibility is maintained.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (Max) @ 10V (Ohm)	Power Dissipation (W)	Package	Product Status
NDF06N60ZG	onsemi	600	7.1	1.2 @ 3A	35	TO-220FP	Obsolete
STF10N65K3	STMicroelectronics	650	10	1.0 @ 3.6A	35	TO-220FP	Active
R6008FNX	Rohm Semiconductor	600	8	0.95 @ 4A	50	TO-220FM	Active
STF6N62K3	STMicroelectronics	620	5.5	1.28 @ 2.8A	30	TO-220FP	Active
STF6N65K3	STMicroelectronics	650	5.4	1.3 @ 2.8A	30	TO-220FP	Active
STF6N60M2	STMicroelectronics	600	4.5	1.2 @ 2.25A	20	TO-220FP	Active
FQPF7N60	onsemi	600	4.3	1.0 @ 2.2A	48	TO-220F-3	Obsolete
IPA60R950C6XKSA1	Infineon Technologies	600	4.4	0.95 @ 1.5A	26	PG-TO220-FP	Obsolete
R6004ENX	Rohm Semiconductor	600	4	0.98 @ 1.5A	40	TO-220FM	Active
IRFIBC40GLCPBF	Vishay Siliconix	600	3.5	1.2 @ 2.1A	40	TO-220-3	Active
IRFIBC40GPBF	Vishay Siliconix	600	3.5	1.2 @ 2.1A	40	TO-220-3	Active

Engineering Selection Recommendations

Primary Substitute – Category A (Direct Current Equivalents):

STF10N65K3 (STMicroelectronics) is the recommended primary substitute. This part exceeds the NDF06N60ZG current specification at 10A continuous drain current, provides a higher voltage rating of 650V, and maintains identical power dissipation at 35W. The TO-220FP package is mechanically and thermally identical. The part is RoHS3 compliant and carries Active product status, ensuring long-term availability and supply chain stability.

Secondary Substitute – Category A (Equivalent Current):

R6008FNX (Rohm Semiconductor) provides 8A continuous drain current, exceeding the 7.1A requirement, with 600V Vdss matching the original specification. The TO-220FM package is mechanically compatible. This part is RoHS3 compliant and Active, with higher power dissipation capability at 50W. This option is suitable when STF10N65K3 availability is constrained.

Alternative Substitutes – Category B (Reduced Current, 4.0A to 7.0A):

STF6N62K3 (STMicroelectronics) provides 5.5A continuous drain current with 620V Vdss rating. This part is suitable for applications where the full 7.1A capability is not required. The TO-220FP package matches the original, and the part is RoHS3 compliant and Active.

STF6N60M2 (STMicroelectronics) provides 4.5A continuous drain current at 600V Vdss. This part is suitable for reduced-current applications and offers the lowest power dissipation at 20W. The TO-220FP package is identical to the original, and the part is RoHS3 compliant and Active.

R6004ENX (Rohm Semiconductor) provides 4A continuous drain current at 600V Vdss with 40W power dissipation. The TO-220FM package is mechanically compatible. This part is RoHS3 compliant and Active.

Not Recommended for Direct Substitution:

IRFIBC40GLCPBF and IRFIBC40GPBF (Vishay Siliconix) provide only 3.5A continuous drain current, which is below the 7.1A specification of the NDF06N60ZG. These parts are suitable only for applications requiring reduced current capability.

FQPF7N60 (onsemi) and IPA60R950C6XKSA1 (Infineon Technologies) are both classified as Obsolete, limiting their suitability as long-term substitutes despite meeting voltage and package requirements.

Frequently Asked Questions (FAQ)

Q: Can STF10N65K3 be used as a direct replacement for NDF06N60ZG?

A: Yes. STF10N65K3 meets all critical substitution criteria: it provides 10A continuous drain current (exceeding the 7.1A requirement), maintains 650V Vdss (above the 600V specification), operates at 10V gate drive voltage, uses the identical TO-220FP package, and supports the full -55°C to 150°C operating range. The part is RoHS3 compliant and carries Active product status.

Q: What is the difference between TO-220FP, TO-220F-3, and TO-220FM packages?

A: All three are through-hole TO-220 family packages with identical pin pitch and mechanical mounting interfaces. TO-220FP and TO-220F-3 are full-pack variants with isolated tabs. TO-220FM is a full-pack variant with metal mounting. All are mechanically interchangeable in standard TO-220 footprints. Thermal performance differences are negligible for most applications.

Q: Why is R6008FNX recommended over STF6N62K3 if both are active parts?

A: R6008FNX provides 8A continuous drain current, which exceeds the NDF06N60ZG specification of 7.1A. STF6N62K3 provides only 5.5A, which is below the original specification. For applications requiring the full current capability of the original part, R6008FNX is the appropriate choice. STF6N62K3 is suitable only for reduced-current applications.

Q: Are IRFIBC40GLCPBF and IRFIBC40GPBF suitable substitutes?

A: These parts are not suitable as direct substitutes. Both provide only 3.5A continuous drain current, which is significantly below the 7.1A specification of the NDF06N60ZG. They are suitable only for applications where current requirements are reduced to 3.5A or lower.

Q: What is the significance of RoHS3 compliance and Active product status?

A: RoHS3 compliance indicates the part meets European Union Restriction of Hazardous Substances regulations, ensuring environmental and safety standards. Active product status indicates the manufacturer continues to produce and support the part, ensuring long-term availability, supply chain stability, and technical support. Obsolete parts may have limited stock and no future production.

Q: Can I use a substitute part with lower power dissipation rating than the original?

A: Power dissipation rating indicates the maximum thermal load the device can handle. A substitute with lower power dissipation (such as STF6N60M2 at 20W versus NDF06N60ZG at 35W) is suitable only if the actual circuit power dissipation does not exceed the substitute's rating. Thermal analysis of the specific application is required to confirm compatibility.

Q: What is the impact of Rds On variation between substitute parts?

A: Rds On (on-state resistance) affects power dissipation and heat generation during operation. Lower Rds On values result in lower power dissipation and reduced heat. Substitute parts with similar or lower Rds On values are generally preferred. However, the specific measurement conditions (Id and Vgs values) differ between parts, making direct comparison necessary only at identical operating points.

Q: Are all substitute parts rated for ±30V gate voltage like the original?

A: No. The NDF06N60ZG is rated for ±30V gate voltage. Some substitutes, such as IRFIBC40GLCPBF and IRFIBC40GPBF, are rated for ±20V. Verify gate voltage ratings when selecting substitutes for applications using gate drive circuits that approach ±30V levels.

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