APT50M38JLL Equivalent & Substitute Parts Reference

Part Overview

The APT50M38JLL by Microchip Technology is an N-Channel 500V, 88A (Tc) MOSFET in a chassis-mount ISOTOP® SOT-227-4, miniBLOC package. It features low Rds On, high power dissipation (694W), and operates within an extended temperature range. It is actively supplied in the POWER MOS 7® series and is RoHS3 compliant. Engineers may require equivalent or substitute parts for reasons such as availability, supply chain resilience, or design flexibility while retaining identical electrical and mechanical characteristics.

Key Parameters

Parameter	APT50M38JLL
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	88A (Tc)
Rds On (Max) @ Id, Vgs	38mOhm @ 44A, 10V
Drive Voltage (Max Rds On, Min Rds On)	10V
Vgs(th) (Max) @ Id	5V @ 5mA
Gate Charge (Qg) (Max) @ Vgs	270 nC @ 10 V
Vgs (Max)	±30V
Input Capacitance (Ciss) (Max) @ Vds	12000 pF @ 25 V
Power Dissipation (Max)	694W (Tc)
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Chassis Mount
Package / Case	SOT-227-4, miniBLOC
Supplier Device Package	ISOTOP®
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts are determined by matching critical electrical and mechanical parameters: category, FET type, channel, technology, maximum drain-source voltage, continuous drain current, Rds On at specified current and voltage, gate drive and threshold voltage, maximum gate charge, input capacitance, maximum Vgs, power dissipation, operating temperature range, mounting type, and package/case. Only substitute parts that comply with these parameters are considered.

Key parameters for substitution include:

MOSFET N-Channel topology
Technology (MOSFET, Metal Oxide type)
Drain to Source Voltage (Vdss) of 500V
SOT-227-4, miniBLOC or equivalent package for mechanical compatibility
Continuous Drain Current (Id) as high or higher than 88A
Rds On within the same range
Gate thresholds and drive voltage compatibility
Power dissipation and operating temperature range
Compliance status (RoHS, REACH, MSL)

Parameter Comparison

Parameter	APT50M38JLL	IXFN132N50P3
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	88A (Tc)	112A (Tc)
Rds On (Max) @ Id, Vgs	38mOhm @ 44A, 10V	39mOhm @ 66A, 10V
Drive Voltage (Max Rds On, Min Rds On)	10V	10V
Vgs(th) (Max) @ Id	5V @ 5mA	5V @ 8mA
Gate Charge (Qg) (Max) @ Vgs	270 nC @ 10 V	250 nC @ 10 V
Vgs (Max)	±30V	±30V
Input Capacitance (Ciss) (Max) @ Vds	12000 pF @ 25 V	18600 pF @ 25 V
Power Dissipation (Max)	694W (Tc)	1500W (Tc)
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Chassis Mount	Chassis Mount
Package / Case	SOT-227-4, miniBLOC	SOT-227-4, miniBLOC
Supplier Device Package	ISOTOP®	SOT-227B
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active

Engineering Selection Recommendations

Both APT50M38JLL and IXFN132N50P3 are classified as active products with ROHS3 compliance, REACH-unaffected status, and unlimited moisture sensitivity level (MSL 1). Selection between these models can be made based on inventory, identical compliance certifications, and active manufacturing status. Both devices are suitable for use in environments requiring global hazardous substance compliance.

Frequently Asked Questions (FAQ)

Q1: What are the main criteria when substituting an APT50M38JLL MOSFET?
A: Substitute selection is based on MOSFET type, Vdss (500V), continuous drain current, Rds On, gate voltages, power dissipation, operating temperature, identical or compatible mechanical package, and compliance certifications.

Q2: Is the IXFN132N50P3 a mechanically compatible alternative to APT50M38JLL?
A: Both devices use the SOT-227-4, miniBLOC chassis-mount package, supporting drop-in mechanical compatibility.

Q3: Are all substitute models electrically equivalent?
A: Substitute parts listed provide the same N-Channel MOSFET function, Vdss, and similar or higher current ratings and power dissipation within the parameters provided.

Q4: Do these substitutes comply with RoHS and REACH regulations?
A: Both APT50M38JLL and IXFN132N50P3 are ROHS3 compliant and REACH-unaffected.

Q5: Does the moisture sensitivity level impact selection?
A: Both parts are rated as MSL 1 (Unlimited), permitting standard storage and assembly conditions.

Q6: Can these substitutes operate over the same temperature range?
A: Both devices operate within -55°C to 150°C (TJ) as specified.

Q7: Is there any difference in device mounting or assembly requirements?
A: Both parts are specified for chassis mounting within the SOT-227-4, miniBLOC form factor.

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