IRF3610SPBF N-Channel 100V 103A MOSFET Equivalent & Substitute Parts

Part Overview

The IRF3610SPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 100V drain-to-source voltage with 103A continuous drain current at 25°C case temperature. This device is packaged in a D2PAK (TO-263-3) surface mount configuration and is designed for high-current switching applications requiring efficient thermal management. The part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. Suitable alternatives must maintain the same voltage rating, comparable current handling capability, identical package format, and equivalent thermal performance characteristics.

Key Parameters

Parameter	IRF3610SPBF Value	Unit	Substitution Criticality
Drain-to-Source Voltage (Vdss)	100	V	Critical - Must Match
Continuous Drain Current (Id) @ 25°C	103 (Tc)	A	Critical - Must Equal or Exceed
On-State Resistance (Rds On) @ 62A, 10V	11.6	mOhm	Important - Lower is Better
Gate Threshold Voltage (Vgs(th)) @ 250µA	4	V	Important - Must be Compatible
Power Dissipation (Max)	333	W (Tc)	Important - Thermal Capability
Package Type	D2PAK (TO-263-3)	-	Critical - Must Match
Operating Temperature Range	-55 to 175	°C (TJ)	Important - Must Support Application Range
Gate Charge (Qg) @ 10V	150	nC	Important - Affects Switching Speed

Substitute Part Grouping Explanation

Substitution eligibility for the IRF3610SPBF is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Requirements:

Drain-to-Source Voltage (Vdss) must equal 100V
Package type must be D2PAK (TO-263-3) surface mount configuration
Continuous drain current (Id) must equal or exceed 103A at 25°C case temperature
Operating temperature range must encompass -55°C to 175°C

Performance Compatibility Parameters:

On-state resistance (Rds On) should be equal to or lower than the original specification to maintain or improve efficiency
Gate threshold voltage (Vgs(th)) must be within ±20V maximum gate voltage specification
Power dissipation capability should support thermal requirements of the application
Gate charge characteristics affect switching performance and must be compatible with drive circuitry

All substitute parts listed below meet these critical requirements and are qualified for direct replacement in applications where the IRF3610SPBF was originally specified.

Parameter Comparison

Parameter	IRF3610SPBF	FDB3632	PSMN013-100BS,118	PSMN9R5-100BS,118	STB100N10F7	STB120NF10T4	Unit
Manufacturer	Infineon	onsemi	Nexperia USA Inc.	Nexperia USA Inc.	STMicroelectronics	STMicroelectronics	-
Vdss	100	100	100	100	100	100	V
Id (Tc) @ 25°C	103	80	68	89	80	110	A
Rds On (Max) @ 10V	11.6 @ 62A	9 @ 80A	13.9 @ 15A	9.6 @ 15A	8 @ 40A	10.5 @ 60A	mOhm
Vgs(th) (Max)	4 @ 250µA	4 @ 250µA	4 @ 1mA	4 @ 1mA	4.5 @ 250µA	4 @ 250µA	V
Qg (Max) @ 10V	150	110	59	82	61	233	nC
Ciss (Max) @ 25-50V	5380 @ 25V	6000 @ 25V	3195 @ 50V	4454 @ 50V	4369 @ 50V	5200 @ 25V	pF
Power Dissipation (Max)	333	310	170	211	150	312	W (Tc)
Operating Temperature	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	°C (TJ)
Package	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	-
Product Status	Discontinued	Active	Active	Active	Active	Active	-
RoHS Compliance	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	-

Engineering Selection Recommendations

Primary Substitute - STB120NF10T4 (STMicroelectronics): The STB120NF10T4 is the closest functional equivalent to the IRF3610SPBF. It exceeds the original current rating at 110A (Tc), maintains identical 100V voltage rating, and provides comparable power dissipation at 312W. This part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. The STripFET II series technology ensures reliable long-term availability and supply chain stability.

Secondary Substitute - STB100N10F7 (STMicroelectronics): The STB100N10F7 provides an alternative from STMicroelectronics with 80A continuous current capability. This part features superior on-state resistance (8mOhm) compared to the original specification, resulting in lower power dissipation and improved thermal efficiency. The DeepGATE and STripFET VII technology series supports active production status.

Alternative Substitute - PSMN9R5-100BS,118 (Nexperia USA Inc.): The PSMN9R5-100BS,118 offers 89A continuous current with excellent on-state resistance of 9.6mOhm at 10V. This part provides a middle-ground option between current capacity and thermal performance, with active product status and full compliance certifications.

Lower Current Alternative - PSMN013-100BS,118 (Nexperia USA Inc.): The PSMN013-100BS,118 is suitable for applications where 68A continuous current is sufficient. This part features the lowest gate charge (59nC) among all substitutes, enabling faster switching characteristics and reduced drive circuit stress.

Budget Alternative - FDB3632 (onsemi): The FDB3632 provides 80A continuous current with 9mOhm on-state resistance. The PowerTrench series technology offers cost-effective performance with active production status and full compliance certifications.

All recommended substitutes maintain identical package format (D2PAK), voltage rating (100V), operating temperature range (-55°C to 175°C), and regulatory compliance (RoHS3, REACH Unaffected, EAR99).

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with lower continuous current rating than the original IRF3610SPBF?

A: No. The IRF3610SPBF is rated for 103A continuous drain current. Any substitute must equal or exceed this rating to ensure safe operation under maximum specified load conditions. Using a lower-rated device creates risk of thermal runaway and component failure.

Q: Are all substitute parts available in the same D2PAK package?

A: Yes. All substitute parts listed are packaged in D2PAK (TO-263-3) surface mount configuration, ensuring mechanical and thermal interface compatibility with existing PCB designs without modification.

Q: What is the significance of on-state resistance (Rds On) differences between parts?

A: Lower Rds On values result in reduced power dissipation and improved efficiency. The STB100N10F7 at 8mOhm provides superior performance compared to the original 11.6mOhm specification. However, higher Rds On values (such as PSMN013-100BS,118 at 13.9mOhm) are acceptable if thermal design accommodates the increased power dissipation.

Q: Do all substitutes support the same operating temperature range?

A: Yes. All substitute parts operate across the identical -55°C to 175°C junction temperature range as the original IRF3610SPBF, ensuring compatibility with applications requiring extended temperature performance.

Q: What does "Product Status: Active" mean for substitute selection?

A: Active product status indicates the manufacturer currently produces and supports the part, ensuring long-term availability, supply chain reliability, and continued technical support. The discontinued status of the IRF3610SPBF makes active substitutes essential for new designs and ongoing production.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All substitute parts carry ROHS3 Compliant certification and REACH Unaffected status, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: How does gate charge (Qg) affect my circuit design?

A: Gate charge determines the energy required to switch the MOSFET on and off. Lower gate charge (PSMN013-100BS,118 at 59nC) reduces drive circuit stress and enables faster switching. Higher gate charge (STB120NF10T4 at 233nC) requires more robust gate drive circuitry but may provide other performance benefits.

Q: Can I mix different substitute parts in the same circuit board?

A: Yes, provided your circuit design accommodates the parameter variations listed in the comparison table. Ensure gate drive circuitry supports the maximum gate charge specification and thermal design accounts for the maximum power dissipation of the highest-rated part used.

Q: What is the difference between Ta and Tc current ratings?

A: Ta (ambient temperature) ratings assume external cooling conditions, while Tc (case temperature) ratings reflect performance at the device case temperature. All current ratings in this comparison use Tc specifications for consistent thermal analysis.

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