Equivalent & Substitute Parts for APT75F50B2

Part Overview

The Microchip Technology APT75F50B2 is an N-Channel power MOSFET rated for 500V and 75A, housed in a T-MAX™ [B2] through-hole package. It offers high power dissipation and low Rds On suitable for demanding power switching applications. The part is active and RoHS3 compliant. Identifying appropriate substitutes is necessary for supply chain resilience, design flexibility, and ensuring continuous production in case of stock limitations or end-of-life announcements.

Key Parameters

Parameter	Value
Manufacturer Part Number	APT75F50B2
Category	Transistors, FETs, MOSFETs
FET Type	N-Channel
Drain to Source Voltage (Vdss)	500 V
Current - Continuous Drain (Id) @ 25°C	75A (Tc)
Rds On (Max) @ Id, Vgs	75mOhm @ 37A, 10V
Vgs(th) (Max) @ Id	5V @ 2.5mA
Gate Charge (Qg) (Max) @ Vgs	290 nC @ 10 V
Vgs (Max)	±30V
Input Capacitance (Ciss) (Max) @ Vds	11600 pF @ 25 V
Power Dissipation (Max)	1040W (Tc)
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Supplier Device Package	T-MAX™ [B2]
Package / Case	TO-247-3 Variant
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitutes for APT75F50B2 are selected strictly based on the following electrical and mechanical parameters: FET type (N-Channel), drain-source voltage (Vdss), continuous drain current (Id), maximum Rds On, gate voltage ratings (Vgs, Vgs(th)), gate charge, input capacitance, power dissipation, operating temperature range, mounting type, package, RoHS compliance, MSL, and product status. Only parts that match or are within the same category and package constraints, ensuring form, fit, and electrical function, are considered substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Drain to Source Voltage (Vdss)	Current - Continuous Drain (Id) @ 25°C	Rds On (Max) @ Id, Vgs	Vgs(th) (Max) @ Id	Gate Charge (Qg) (Max) @ Vgs	Vgs (Max)	Input Capacitance (Ciss) (Max) @ Vds	Power Dissipation (Max)	Operating Temperature	Mounting Type	Package / Case	RoHS Status	MSL	REACH Status	Product Status
APT75F50B2	Microchip Technology	500 V	75A (Tc)	75mOhm @ 37A, 10V	5V @ 2.5mA	290 nC @ 10 V	±30V	11600 pF @ 25 V	1040W (Tc)	-55°C ~ 150°C (TJ)	Through Hole	TO-247-3 Variant	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active
IXFR64N50Q3	IXYS	500 V	45A (Tc)	95mOhm @ 32A, 10V	6.5V @ 4mA	145 nC @ 10 V	±30V	6950 pF @ 25 V	500W (Tc)	-55°C ~ 150°C (TJ)	Through Hole	TO-247-3	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active
IXFR80N50Q3	IXYS	500 V	50A (Tc)	72mOhm @ 40A, 10V	6.5V @ 8mA	200 nC @ 10 V	±30V	10000 pF @ 25 V	570W (Tc)	-55°C ~ 150°C (TJ)	Through Hole	TO-247-3	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active
IXFX64N50Q3	IXYS	500 V	64A (Tc)	85mOhm @ 32A, 10V	6.5V @ 4mA	145 nC @ 10 V	±30V	6950 pF @ 25 V	1000W (Tc)	-55°C ~ 150°C (TJ)	Through Hole	TO-247-3 Variant	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active
IXFX78N50P3	IXYS	500 V	78A (Tc)	68mOhm @ 500mA, 10V	5V @ 4mA	147 nC @ 10 V	±30V	9900 pF @ 25 V	1130W (Tc)	-55°C ~ 150°C (TJ)	Through Hole	TO-247-3 Variant	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active

Engineering Selection Recommendations

All listed substitutes are classified as active and are RoHS3 compliant, with MSL 1 (unlimited) and REACH unaffected status. Based strictly on product status, environmental compliance, and certifications, each substitute part meets industry standards for regulated markets and can be considered under equivalent conditions.

Frequently Asked Questions (FAQ)

Q1: What are the critical substitution criteria for APT75F50B2?
A1: The substitution process requires matching FET type (N-Channel), drain-source voltage (500V), continuous drain current, Rds On values, gate voltage ratings, mounting type, package, operating temperature, and compliance certifications.

Q2: Are all substitute parts compatible in terms of form factor and mounting type?
A2: All substitutes are specified for through-hole mounting and utilize variations of the TO-247-3 package, maintaining compatibility with designs using the APT75F50B2.

Q3: How does environmental compliance affect substitute selection?
A3: Only substitute parts with ROHS3 compliance, REACH unaffected status, and unlimited MSL are included, ensuring adherence to regulatory requirements.

Q4: Can input capacitance and gate charge differences impact substitution?
A4: Substitution is based exclusively on provided parameters. Variations in input capacitance (Ciss) and gate charge (Qg) are documented but must match allowable design requirements within the same product category.

Q5: Is it necessary to match the exact product series or manufacturer?
A5: Substitute selection is governed by electrical and mechanical parameters, package compatibility, and compliance status, not manufacturer or series. All listed substitutes fulfill these essential criteria.

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