APT56M50B2 Equivalent & Substitute Parts Reference

Part Overview

The Microchip Technology APT56M50B2 is an N-Channel MOSFET in the Transistors, FETs, MOSFETs category, designed for high-power applications requiring up to 500 V drain-source voltage and 56A continuous drain current. It is provided in a TO-247-3 variant (T-MAX™) through-hole package. The product is actively supported and available in new original stock. Finding alternative models ensures flexibility in sourcing and permits component interchangeability for designs requiring identical electrical and mechanical parameters, as determined by explicit datasheet values.

Key Parameters

Parameter	Value
Manufacturer Part Number	APT56M50B2
Manufacturer	Microchip Technology
Category	Transistors, FETs, MOSFETs
FET Type	N-Channel
Technology	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	500 V
Current - Continuous Drain (Id) @ 25°C	56A (Tc)
Drive Voltage (Max Rds On, Min Rds On)	10V
Rds On (Max) @ Id, Vgs	100mOhm @ 28A, 10V
Vgs(th) (Max) @ Id	5V @ 2.5mA
Gate Charge (Qg) (Max) @ Vgs	220 nC @ 10 V
Vgs (Max)	±30V
Input Capacitance (Ciss) (Max) @ Vds	8800 pF @ 25 V
Power Dissipation (Max)	780W (Tc)
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Supplier Device Package	T-MAX™
Package / Case	TO-247-3 Variant
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.29.0095

Substitute Part Grouping Explanation

The substitute part group includes components whose electrical and mechanical parameters precisely match the main part number APT56M50B2. Substitution is allowed only when all the following key criteria are identical: FET type, technology, drain to source voltage (Vdss), continuous drain current (Id), maximum on-resistance (Rds On), gate threshold voltage (Vgs(th)), maximum gate charge (Qg), maximum gate-source voltage (Vgs), input capacitance (Ciss), power dissipation, operating temperature range, mounting type, device package, RoHS status, moisture sensitivity level (MSL), and REACH status.

Parameter Comparison

Parameter	APT56M50B2	APT56F50B2
Manufacturer	Microchip Technology	Microchip Technology
Category	Transistors, FETs, MOSFETs	Transistors, FETs, MOSFETs
FET Type	N-Channel	N-Channel
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	500 V	500 V
Current - Continuous Drain (Id) @ 25°C	56A (Tc)	56A (Tc)
Drive Voltage (Max Rds On, Min Rds On)	10V	10V
Rds On (Max) @ Id, Vgs	100mOhm @ 28A, 10V	100mOhm @ 28A, 10V
Vgs(th) (Max) @ Id	5V @ 2.5mA	5V @ 2.5mA
Gate Charge (Qg) (Max) @ Vgs	220 nC @ 10 V	220 nC @ 10 V
Vgs (Max)	±30V	±30V
Input Capacitance (Ciss) (Max) @ Vds	8800 pF @ 25 V	8800 pF @ 25 V
Power Dissipation (Max)	780W (Tc)	780W (Tc)
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole	Through Hole
Supplier Device Package	T-MAX™	T-MAX™ [B2]
Package / Case	TO-247-3 Variant	TO-247-3 Variant
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.29.0095	8541.29.0095

Engineering Selection Recommendations

Both APT56M50B2 and substitute APT56F50B2 are active products, available in stock, ROHS3 compliant, and REACH unaffected. Their moisture sensitivity level is 1 (Unlimited), and they have matching ECCN and HTSUS codes. Selection may be based directly on supply chain requirements and compliance needs.

Frequently Asked Questions (FAQ)

Q1: What electrical parameters must match for a substitute in this category?
A1: Accepted substitutes must have identical drain to source voltage (Vdss), continuous drain current (Id), Rds On, Vgs(th), gate charge (Qg), Vgs(max), input capacitance (Ciss), and power dissipation.

Q2: Are mechanical and package parameters critical for MOSFET substitution?
A2: Yes. Package / case type (TO-247-3 Variant), mounting type (through hole), and device package (T-MAX™) must be the same for compatibility.

Q3: What compliance certifications are required for substitutes?
A3: Substitute components must be ROHS3 compliant, REACH unaffected, and have matching MSL, ECCN, and HTSUS designations.

Q4: Can APT56F50B2 be used directly as an equivalent for APT56M50B2?
A4: Yes, according to the provided parameters, APT56F50B2 meets all electrical, mechanical, and compliance criteria for equivalence.

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