APT6010B2FLLG Equivalent & Substitute Parts

Part Overview

The APT6010B2FLLG is an N-Channel 600V 54A (Tc) power MOSFET manufactured by Microchip Technology, packaged in the T-MAX™ [B2] through-hole format (TO-247-3 variant). This device operates within the POWER MOS 7® series and maintains Active product status with full RoHS3 compliance. The part is suitable for high-current switching applications requiring 600V drain-to-source voltage capability.

Equivalent and substitute parts become necessary when the primary device experiences supply constraints, extended lead times, or when design flexibility permits selection from alternative manufacturers offering comparable electrical and mechanical characteristics within the same voltage and current class.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	600	V
Continuous Drain Current (Id) @ 25°C	54	A (Tc)
On-State Resistance (Rds On) @ Id, Vgs	100 mOhm @ 27A, 10V	mOhm
Gate Threshold Voltage (Vgs(th)) @ Id	5	V @ 2.5mA
Gate Charge (Qg) @ Vgs	150	nC @ 10V
Input Capacitance (Ciss) @ Vds	6710	pF @ 25V
Mounting Type	Through Hole	—
Package / Case	TO-247-3 Variant	—
RoHS Status	ROHS3 Compliant	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitution eligibility for the APT6010B2FLLG is determined by the following critical parameters:

Mandatory Matching Criteria:

Drain to Source Voltage (Vdss): 600V or higher
Continuous Drain Current (Id): Minimum 48A at 25°C (within 89% of primary device rating)
Mounting Type: Through Hole
Package / Case: TO-247-3 or TO-247-3 Variant
Technology: N-Channel MOSFET (Metal Oxide)

Acceptable Variation Parameters:

On-State Resistance (Rds On): 100–150 mOhm range at specified Id and Vgs
Gate Charge (Qg): 80–190 nC at 10V
Input Capacitance (Ciss): 2127–9930 pF range
Gate Threshold Voltage (Vgs(th)): 3.5–6.5V range
Product Status: Active or Not For New Designs (with engineering review)
RoHS Compliance: ROHS3 Compliant required

Substitute parts meeting these criteria maintain electrical and thermal compatibility while accommodating component availability and supply chain flexibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Qg (nC)	Ciss (pF)	Vgs(th) (V)	Package	Product Status
APT6010B2FLLG	Microchip Technology	600	54	100 @ 27A, 10V	150 @ 10V	6710 @ 25V	5 @ 2.5mA	TO-247-3 Variant	Active
FCH104N60	onsemi	600	37	104 @ 18.5A, 10V	82 @ 10V	4165 @ 380V	3.5 @ 250µA	TO-247-3	Obsolete
FCH104N60F-F085	onsemi	600	37	104 @ 18.5A, 10V	139 @ 10V	4302 @ 100V	5 @ 250µA	TO-247-3	Not For New Designs
IPW60R099C6FKSA1	Infineon Technologies	600	37.9	99 @ 18.1A, 10V	119 @ 10V	2660 @ 100V	3.5 @ 1.21mA	TO-247-3	Not For New Designs
IPW60R099CPFKSA1	Infineon Technologies	650	31	99 @ 18A, 10V	80 @ 10V	2800 @ 100V	3.5 @ 1.2mA	TO-247-3	Not For New Designs
IPW60R125C6FKSA1	Infineon Technologies	600	30	125 @ 14.5A, 10V	96 @ 10V	2127 @ 100V	3.5 @ 960µA	TO-247-3	Not For New Designs
IXFH34N65X2	IXYS	650	34	105 @ 17A, 10V	56 @ 10V	3330 @ 25V	5.5 @ 2.5mA	TO-247-3	Active
IXFR64N60Q3	IXYS	600	42	104 @ 32A, 10V	190 @ 10V	9930 @ 25V	6.5 @ 4mA	TO-247-3	Active
IXFX48N60Q3	IXYS	600	48	140 @ 24A, 10V	140 @ 10V	7020 @ 25V	6.5 @ 4mA	TO-247-3 Variant	Active
IXKH35N60C5	IXYS	600	35	100 @ 18A, 10V	70 @ 10V	2800 @ 100V	3.9 @ 1.2mA	TO-247-3	Active
IXTH34N65X2	IXYS	650	34	105 @ 17A, 10V	53 @ 10V	3120 @ 25V	4.5 @ 4mA	TO-247-3	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status):

IXFX48N60Q3 (IXYS) represents the closest electrical equivalent, offering 48A continuous drain current at 600V with matching TO-247-3 Variant packaging. This device maintains Active product status and provides the highest current rating among available substitutes, supporting applications requiring current levels near the primary device specification.

IXFR64N60Q3 (IXYS) provides 42A continuous drain current at 600V with Active status. This part accommodates mid-range current requirements and maintains full RoHS3 compliance with identical package geometry.

IXFH34N65X2 and IXTH34N65X2 (IXYS) both deliver 34A at 650V with Active status. These devices offer enhanced voltage margin and are suitable for applications where higher voltage rating provides design flexibility, though current capacity is reduced relative to the primary device.

IXKH35N60C5 (IXYS) supplies 35A at 600V with Active status and represents a conservative current-rated option for lower-power applications within the 600V class.

Secondary Substitutes (Not For New Designs Status):

IPW60R099C6FKSA1 (Infineon Technologies) delivers 37.9A at 600V with CoolMOS™ technology and Not For New Designs status. This part is suitable for legacy system maintenance or where existing design validation permits use of non-active components.

IPW60R099CPFKSA1 (Infineon Technologies) provides 31A at 650V with Not For New Designs status. Current capacity is reduced; selection requires application-level current verification.

IPW60R125C6FKSA1 (Infineon Technologies) offers 30A at 600V with Not For New Designs status. This part is appropriate only for applications with current requirements below 30A.

FCH104N60F-F085 (onsemi) supplies 37A at 600V with Automotive qualification (AEC-Q101) and Not For New Designs status. This variant is restricted to automotive applications requiring specific qualification.

Obsolete Parts:

FCH104N60 (onsemi) carries Obsolete status and is not recommended for new designs or system implementations.

Frequently Asked Questions (FAQ)

Q: Can the APT6010B2FLLG be directly replaced with any of the listed substitute parts?

A: Direct replacement depends on application current requirements and voltage margin tolerance. IXFX48N60Q3 provides the closest current rating (48A) at matching 600V specification. Lower-current substitutes (30–42A range) require verification that application peak and continuous current demands remain within the substitute device rating. All listed substitutes maintain TO-247-3 package compatibility and through-hole mounting.

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

A: Parts marked "Not For New Designs" are in mature or declining production phases. These devices remain available for existing system support and maintenance but are not recommended for new product development. Selection of such parts requires engineering justification and should be limited to legacy system updates or where design validation has already been completed.

Q: How do gate charge (Qg) differences affect circuit performance?

A: Gate charge variations (80–190 nC range across substitutes) influence gate drive circuit design and switching speed. Higher gate charge requires increased gate drive current or extended switching time. The primary device specifies 150 nC; substitutes with lower gate charge (56–96 nC) enable faster switching, while higher values (139–190 nC) demand proportionally higher gate drive capability. Circuit-level validation is required when gate charge differs by more than ±30% from the original design specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, matching the primary device compliance requirement. All parts are also REACH Unaffected and classified under ECCN EAR99.

Q: What packaging variants are available among the substitutes?

A: All substitute parts utilize TO-247-3 or TO-247-3 Variant through-hole packages. IXFX48N60Q3 and the primary device APT6010B2FLLG both specify TO-247-3 Variant. IXFR64N60Q3 uses ISOPLUS247™ package, which maintains TO-247-3 pin compatibility. IXFH34N65X2 and IXTH34N65X2 use TO-247 (IXTH) designation. All variants are mechanically and electrically compatible with standard TO-247-3 PCB layouts and heat sink mounting.

Q: Which substitute offers the best on-state resistance (Rds On) performance?

A: IPW60R099C6FKSA1 and IPW60R099CPFKSA1 (Infineon Technologies) both specify 99 mOhm Rds On, marginally lower than the primary device (100 mOhm). IXKH35N60C5 also achieves 100 mOhm. Lower Rds On reduces conduction losses and heat dissipation. However, these benefits must be weighed against product status and current rating limitations.

Q: Can substitutes with higher voltage ratings (650V) be used in 600V applications?

A: Yes. Devices rated for 650V (IPW60R099CPFKSA1, IXFH34N65X2, IXTH34N65X2) provide voltage margin and are electrically compatible with 600V circuit designs. Higher voltage rating does not degrade performance in lower-voltage applications. However, current capacity may be reduced at the higher voltage rating; verify that application current requirements remain within the substitute device specification.

Q: What is the impact of input capacitance (Ciss) variation on circuit design?

A: Input capacitance ranges from 2127 pF to 9930 pF across substitutes. The primary device specifies 6710 pF at 25V. Higher input capacitance increases gate drive circuit loading and may require higher gate drive current or modified timing. Lower capacitance reduces gate drive demands. Substitutes with significantly different Ciss values (>30% variance) may require gate drive circuit re-evaluation to maintain switching performance and thermal stability.

Q: Are there inventory considerations when selecting substitutes?

A: Yes. Inventory levels vary significantly: IXFH34N65X2 (6936 pcs), IPW60R125C6FKSA1 (3400 pcs), and IPW60R099C6FKSA1 (2400 pcs) offer high availability. IXFR64N60Q3 (707 pcs) and IXFX48N60Q3 (895 pcs) have moderate stock. FCH104N60 (2113 pcs) and FCH104N60F-F085 (791 pcs) are available but carry Obsolete or Not For New Designs status. Availability should be confirmed with component suppliers before design commitment.

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