IXFN38N100P N-Channel 1000V 38A MOSFET Equivalent & Substitute Parts

Part Overview

The IXFN38N100P is an N-Channel MOSFET manufactured by IXYS, rated for 1000V drain-to-source voltage with 38A continuous drain current at 25°C. This device operates in the HiPerFET™ series and is housed in a SOT-227B (miniBLOC) chassis mount package. The part is Active status and ROHS3 compliant, with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching or exceeding critical electrical parameters: drain-to-source voltage rating, continuous drain current capability, on-state resistance characteristics, gate charge, and thermal performance. Substitute parts must maintain compatibility with the SOT-227-4 miniBLOC package footprint and chassis mount configuration.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	1000	V
Continuous Drain Current (Id) @ 25°C	38	A (Tc)
On-State Resistance (Rds On Max) @ 19A, 10V	210	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ 1mA	6.5	V
Gate Charge (Qg Max) @ 10V	350	nC
Input Capacitance (Ciss Max) @ 25V	24000	pF
Power Dissipation (Max)	1000	W (Tc)
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	SOT-227-4, miniBLOC	Chassis Mount
Maximum Gate Voltage	±30	V

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain the 1000V Vdss rating to ensure safe operation in the same circuit topology.

Current Capability: Substitute parts rated at 37A or higher meet the 38A continuous drain current requirement. Parts with lower current ratings are not suitable.

On-State Resistance: The 210 mOhm maximum specification at the specified gate voltage and current conditions defines acceptable conduction losses. Substitute parts matching this specification ensure thermal and efficiency equivalence.

Package Compatibility: All substitute parts use the SOT-227-4 miniBLOC chassis mount package, ensuring mechanical and thermal interface compatibility.

Temperature Range: All substitute parts operate across the -55°C to 150°C junction temperature range, maintaining thermal performance parity.

Compliance: All substitute parts are ROHS3 compliant with MSL 1 rating and REACH unaffected status, matching the original part's regulatory standing.

Parameter Comparison

Parameter	IXFN38N100P	APT10021JFLL	APT41F100J	Unit
Manufacturer	IXYS	Microchip Technology	Microchip Technology	—
Drain to Source Voltage (Vdss)	1000	1000	1000	V
Continuous Drain Current (Id) @ 25°C	38	37	42	A (Tc)
On-State Resistance (Rds On Max) @ 10V	210 @ 19A	210 @ 18.5A	210 @ 33A	mOhm
Gate Threshold Voltage (Vgs(th) Max)	6.5 @ 1mA	5 @ 5mA	5 @ 5mA	V
Gate Charge (Qg Max) @ 10V	350	395	570	nC
Input Capacitance (Ciss Max) @ 25V	24000	9750	18500	pF
Power Dissipation (Max)	1000	694	960	W (Tc)
Operating Temperature Range	-55 to 150	-55 to 150	-55 to 150	°C (TJ)
Package Type	SOT-227-4, miniBLOC	SOT-227-4, miniBLOC	SOT-227-4, miniBLOC	—
Maximum Gate Voltage	±30	±30	±30	V
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	—

Engineering Selection Recommendations

IXFN38N100P (Primary Part)

The IXFN38N100P remains the primary selection when available. This part delivers 1000W maximum power dissipation and 38A continuous drain current with established supply chain presence (68,556 pcs in stock). The HiPerFET™ series designation indicates optimized switching performance for high-voltage applications.

APT10021JFLL (Substitute - Lower Current Alternative)

The APT10021JFLL from Microchip Technology's POWER MOS 7® series provides a direct substitute when the IXFN38N100P is unavailable. This part meets the 1000V voltage requirement and delivers 37A continuous drain current, which satisfies applications requiring up to 37A. The on-state resistance matches at 210 mOhm. Power dissipation is rated at 694W, which is lower than the primary part. This substitute is suitable for designs where the 37A current rating is sufficient and thermal management accommodates the reduced power dissipation ceiling. Inventory availability is 33,100 pcs.

APT41F100J (Substitute - Higher Current Alternative)

The APT41F100J from Microchip Technology provides enhanced current capability at 42A continuous drain current, exceeding the IXFN38N100P specification. This part maintains the 1000V voltage rating and 210 mOhm on-state resistance. Power dissipation is rated at 960W. The APT41F100J is suitable for designs requiring higher current headroom or where thermal management supports the increased power dissipation. Gate charge is elevated at 570 nC compared to 350 nC for the primary part, which may affect switching frequency performance in high-frequency applications. Inventory availability is limited at 1,061 pcs.

All substitute parts maintain full compliance with ROHS3, REACH, and MSL 1 requirements, ensuring regulatory and environmental compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can APT10021JFLL be used as a direct replacement for IXFN38N100P in all applications?

A: The APT10021JFLL is electrically compatible for applications requiring up to 37A continuous drain current. The 1000V voltage rating, 210 mOhm on-state resistance, and ±30V gate voltage specification match the primary part. However, the maximum power dissipation is 694W versus 1000W for the IXFN38N100P. Thermal design must be verified to ensure the lower power dissipation rating does not exceed application requirements.

Q: What is the difference in gate charge between the substitute parts?

A: The IXFN38N100P specifies 350 nC gate charge at 10V. The APT10021JFLL specifies 395 nC, and the APT41F100J specifies 570 nC. Higher gate charge increases switching losses in high-frequency applications. For applications operating at switching frequencies below 50 kHz, this difference is typically negligible. High-frequency designs should evaluate switching loss impact.

Q: Are all substitute parts available in the same package?

A: Yes. The IXFN38N100P, APT10021JFLL, and APT41F100J all use the SOT-227-4 miniBLOC chassis mount package. Mechanical and thermal interface compatibility is maintained across all three parts.

Q: Which substitute part should be selected for maximum current capability?

A: The APT41F100J provides the highest continuous drain current at 42A, exceeding the IXFN38N100P specification of 38A. This part is suitable for designs requiring additional current margin or where load current may approach or exceed 38A.

Q: Do all parts operate across the same temperature range?

A: Yes. The IXFN38N100P, APT10021JFLL, and APT41F100J all operate from -55°C to 150°C junction temperature. Thermal performance across the operating range is equivalent.

Q: Are there compliance or regulatory differences between the parts?

A: No. All three parts are ROHS3 compliant, carry MSL 1 (unlimited) moisture sensitivity rating, and are REACH unaffected. Regulatory and environmental compliance is identical across all parts.

Q: What is the input capacitance difference, and does it matter?

A: The IXFN38N100P specifies 24,000 pF input capacitance at 25V. The APT10021JFLL specifies 9,750 pF, and the APT41F100J specifies 18,500 pF. Lower input capacitance reduces gate drive requirements and switching losses. For applications with limited gate drive capability, the APT10021JFLL offers an advantage.

Q: Can APT41F100J be used in place of IXFN38N100P without circuit modification?

A: The APT41F100J is electrically compatible and can be used as a direct substitute. The higher current rating (42A versus 38A) and slightly lower power dissipation (960W versus 1000W) do not require circuit modification. Gate charge is higher at 570 nC, which may slightly increase switching losses in high-frequency applications but does not prevent substitution.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message