Equivalent & Substitute Parts Reference for IRFR4105Z

Part Overview

The IRFR4105Z from Infineon Technologies is an N-channel MOSFET in the Transistors, FETs, MOSFETs product category. It offers a drain-to-source voltage (Vdss) of 55 V and a continuous drain current (Id) of 30 A, housed in a surface-mount TO-252AA (DPAK) package. This part is classified as obsolete, making it necessary to identify equivalent or substitute MOSFET models that match its electrical and mechanical specifications for both new designs and maintenance of legacy systems.

Key Parameters

Parameter	Value
FET Type	N-Channel
Technology	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	55 V
Current - Continuous Drain (Id) @ 25°C	30A (Tc)
Rds On (Max) @ Id, Vgs	24.5mOhm @ 18A, 10V
Drive Voltage (Max Rds On, Min Rds On)	10V
Vgs(th) (Max) @ Id	4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	27 nC @ 10 V
Vgs (Max)	±20V
Input Capacitance (Ciss) (Max) @ Vds	740 pF @ 25 V
Power Dissipation (Max)	48W (Tc)
Operating Temperature	-55°C ~ 175°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute selection for the IRFR4105Z N-channel MOSFET is determined strictly by matching the following key parameters: FET type, technology, drain to source voltage (Vdss), continuous drain current (Id), Rds On (Max), drive voltage, gate threshold voltage (Vgs(th)), gate charge (Qg), maximum power dissipation, input capacitance, maximum gate-source voltage, mechanical package (TO-252-3, DPAK), mounting type, and operating temperature range. Only parts matching these electrical and mechanical specifications are listed as substitutes.

Parameter Comparison

Part Number	FET Type	Technology	Vdss (V)	Id (A)	Rds On (Max) @ Id, Vgs	Drive Voltage	Vgs(th) (Max) @ Id	Qg (Max) @ Vgs	Vgs (Max)	Ciss (Max)	Pd (Max)	Operating Temp	Mounting Type	Package / Case	RoHS Status	MSL
IRFR4105Z	N-Channel	MOSFET	55	30	24.5mOhm @ 18A, 10V	10V	4V @ 250µA	27 nC @ 10 V	±20V	740 pF @ 25 V	48W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	RoHS non-compliant	1 (Unlimited)
IPD30N10S3L34ATMA1	N-Channel	MOSFET	100	30	31mOhm @ 30A, 10V	4.5V, 10V	2.4V @ 29µA	31 nC @ 10 V	±20V	1976 pF @ 25 V	57W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD16NF06T4	N-Channel	MOSFET	60	16	70mOhm @ 8A, 10V	10V	2V @ 250µA	14.1 nC @ 10 V	±20V	400 pF @ 15 V	40W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD20NF06LT4	N-Channel	MOSFET	60	24	40mOhm @ 12A, 10V	5V, 10V	2.5V @ 250µA	13 nC @ 10 V	±18V	660 pF @ 25 V	60W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD20NF06T4	N-Channel	MOSFET	60	24	40mOhm @ 12A, 10V	10V	4V @ 250µA	31 nC @ 10 V	±20V	690 pF @ 25 V	60W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD25NF10LT4	N-Channel	MOSFET	100	25	35mOhm @ 12.5A, 10V	4.5V, 10V	2.5V @ 250µA	52 nC @ 5 V	±16V	1710 pF @ 25 V	100W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD25NF10T4	N-Channel	MOSFET	100	25	38mOhm @ 12.5A, 10V	10V	4V @ 250µA	55 nC @ 10 V	±20V	1550 pF @ 25 V	100W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD26NF10	N-Channel	MOSFET	100	25	38mOhm @ 12.5A, 10V	10V	4V @ 250µA	55 nC @ 10 V	±20V	1550 pF @ 25 V	100W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD30NF06LT4	N-Channel	MOSFET	60	35	28mOhm @ 18A, 10V	5V, 10V	2.5V @ 250µA	31 nC @ 5 V	±20V	1600 pF @ 25 V	70W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD35NF06LT4	N-Channel	MOSFET	60	35	17mOhm @ 17.5A, 10V	4.5V, 10V	2.5V @ 250µA	33 nC @ 4.5 V	±16V	1700 pF @ 25 V	80W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD35NF06T4	N-Channel	MOSFET	60	35	20mOhm @ 17.5A, 10V	10V	4V @ 250µA	60 nC @ 10 V	±20V	1300 pF @ 25 V	80W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
STD45NF75T4	N-Channel	MOSFET	75	40	24mOhm @ 20A, 10V	10V	4V @ 250µA	80 nC @ 10 V	±20V	1760 pF @ 25 V	125W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)
SUD23N06-31L-T4-E3	N-Channel	MOSFET	60	23	31mOhm @ 15A, 10V	4.5V, 10V	3V @ 250µA	17 nC @ 10 V	±20V	670 pF @ 25 V	3W (Ta), 100W (Tc)	-55°C ~ 175°C	Surface Mount	TO-252-3, DPAK	ROHS3 Compliant	1 (Unlimited)

Engineering Selection Recommendations

The IRFR4105Z is classified as obsolete and is RoHS non-compliant. All listed substitute MOSFETs are in active status and are ROHS3 Compliant, with Moisture Sensitivity Level (MSL) 1 (Unlimited). Selection among these substitutes should be based on matching electrical parameters, compliance requirements, and mechanical package compatibility as outlined in the table above.

Frequently Asked Questions (FAQ)

Q: What are the most critical parameters for substituting IRFR4105Z in a design?
A: The most critical parameters for substitution include FET type (N-Channel), drain-to-source voltage (Vdss), continuous drain current (Id) at 25°C, Rds On, drive voltage, gate threshold voltage (Vgs(th)), maximum gate charge, gate-source maximum voltage (Vgs (Max)), package type (TO-252-3, DPAK), and mounting type.

Q: Are all substitute parts in the same mechanical package as the IRFR4105Z?
A: Yes. All substitute MOSFETs are listed with the TO-252-3, DPAK (2 Leads + Tab), SC-63 package and are suitable for surface mount applications.

Q: What compliance differences exist between the original and substitute MOSFETs?
A: The IRFR4105Z is RoHS non-compliant, whereas all substitutes are ROHS3 Compliant.

Q: Are there any differences in Moisture Sensitivity Level (MSL)?
A: No. All devices, including the IRFR4105Z and substitutes, have Moisture Sensitivity Level 1 (Unlimited).

Q: Can substitute parts be used as direct replacements in existing boards?
A: Substitute parts listed match on critical parameters and form factor. Mechanical and electrical compatibility is maintained as detailed in the parameter comparison table.

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