Equivalent & Substitute Parts for DKI04035 MOSFET (N-Channel, Sanken Electric USA Inc.)

Part Overview

Manufacturer part number DKI04035 is an N-Channel MOSFET with key electrical ratings of 40 V drain-to-source voltage and continuous drain current of 48A (Tc), packaged in a surface-mount TO-252. It is categorized under Transistors, FETs, MOSFETs, and has been marked obsolete. Locating equivalent and substitute models is necessary for ongoing designs, repairs, and maintenance because this component is no longer in production.

Key Parameters

Parameter	Value
FET Type	N-Channel
Technology	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	40 V
Current - Continuous Drain (Id) @ 25°C	48A (Tc)
Drive Voltage (Max Rds On, Min Rds On)	4.5V, 10V
Rds On (Max) @ Id, Vgs	4mOhm @ 51A, 10V
Vgs(th) (Max) @ Id	2.5V @ 1mA
Gate Charge (Qg) (Max) @ Vgs	63.2 nC @ 10 V
Vgs (Max)	±20V
Input Capacitance (Ciss) (Max) @ Vds	3910 pF @ 25 V
Power Dissipation (Max)	61W (Tc)
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
RoHS Status	RoHS Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute and equivalent MOSFETs must match on critical parameters, including:

N-Channel type and MOSFET (Metal Oxide) technology
Drain-to-Source Voltage (Vdss): 40 V
Comparable or higher continuous drain current (Id) at 25°C
Drive voltage supporting 4.5V/10V operation
Rds(on) values that meet circuit requirements at similar currents and voltages
Threshold voltage (Vgs(th)), gate charge (Qg), and input capacitance (Ciss)
Surface-mount TO-252-3, DPAK-compatible enclosure
Relevant operating junction temperature rating
RoHS and MSL compliance, where required

Only substitute models meeting these parameters are considered in the substitution group.

Parameter Comparison

Part Number	Vdss	Id (Tc)	Drive Voltage	Rds On (Max) @ Id, Vgs	Vgs(th) (Max)	Qg (Max) @ Vgs	Vgs (Max)	Ciss (Max) @ Vds	Power Dissipation (Max)	Operating Temp (TJ)	Mounting Type	Package / Case	RoHS Status	MSL
DKI04035	40 V	48A	4.5V, 10V	4mOhm @ 51A, 10V	2.5V @ 1mA	63.2 nC @ 10V	±20V	3910 pF @ 25V	61W	150°C	Surface Mount	TO-252-3, DPAK	RoHS	1
AOD2146	40 V	54A	4.5V, 10V	3.1mOhm @ 20A, 10V	2.5V @ 250µA	70 nC @ 10V	±20V	3830 pF @ 20V	100W	150°C	Surface Mount	TO-252-3, DPAK	RoHS3	-
AUIRFR8401TRL	40 V	100A	10V	4.25mOhm @ 60A, 10V	3.9V @ 50µA	63 nC @ 10V	±20V	2200 pF @ 25V	79W	175°C	Surface Mount	TO-252-3, DPAK	RoHS3	1
FDD8444	40 V	145A	10V	5.2mOhm @ 50A, 10V	4V @ 250µA	116 nC @ 10V	±20V	6195 pF @ 25V	153W	175°C	Surface Mount	TO-252-3, DPAK	-	-
IPD90N04S3H4ATMA1	40 V	90A	10V	4.3mOhm @ 90A, 10V	4V @ 65µA	60 nC @ 10V	±20V	3900 pF @ 25V	115W	175°C	Surface Mount	TO-252-3, DPAK	RoHS3	1
NVD5C454NLT4G	40 V	84A	4.5V, 10V	3.9mOhm @ 40A, 10V	2.2V @ 70µA	43 nC @ 10V	±20V	2600 pF @ 25V	56W	175°C	Surface Mount	TO-252-3, DPAK	RoHS3	1
RD3G600GNTL	40 V	60A	4.5V, 10V	3.6mOhm @ 60A, 10V	2.5V @ 1mA	46.5 nC @ 10V	±20V	3400 pF @ 20V	40W	150°C	Surface Mount	TO-252-3, DPAK	RoHS3	1
STD120N4LF6	40 V	80A	5V, 10V	4mOhm @ 40A, 10V	3V @ 250µA	80 nC @ 10V	±20V	4300 pF @ 25V	110W	175°C	Surface Mount	TO-252-3, DPAK	RoHS3	1
TK3R1P04PL,RQ	40 V	58A	4.5V, 10V	3.1mOhm @ 29A, 10V	2.4V @ 500µA	60 nC @ 10V	±20V	4670 pF @ 20V	87W	175°C	Surface Mount	TO-252-3, DPAK	RoHS3	1

Engineering Selection Recommendations

For obsolete N-Channel MOSFET part number DKI04035, select substitute models with active or in-stock status that demonstrate RoHS compliance and an MSL of 1 (Unlimited). Consider substitutes in the same package type and mounting style to maintain compatibility and assembly efficiency. All listed substitutes conform to provided certifications and compliance data.

Frequently Asked Questions (FAQ)

Q1: What are the essential parameters when selecting an equivalent MOSFET to DKI04035?
A1: Parameters include N-Channel type, 40 V drain-to-source voltage, similar or higher continuous drain current, compatible drive voltage, similar or lower Rds(on), equivalent package (TO-252-3, DPAK), and RoHS/MSL compliance.

Q2: Why must the package and mounting type match for substitutes?
A2: Package compatibility (TO-252-3, DPAK, and surface mount) ensures the substitute fits existing PCB layouts and assembly processes without modification.

Q3: How does product status affect component selection for DKI04035 replacements?
A3: Active status indicates ongoing production; obsolete status requires finding substitutes. Selection should prioritize active parts with sufficient stock and compliance.

Q4: Which compliance data are relevant for engineering substitutions?
A4: RoHS and moisture sensitivity levels (MSL) confirm the substitute meets environmental regulations and assembly requirements. Only substitute models with equal or superior compliance values are suitable.

Q5: Can electrical parameters such as Rds(on) differ between substitutes?
A5: Substitutes are valid if their Rds(on) at specified test conditions meets the circuit requirements determined by the original DKI04035 application and provided limits. Only listed parameters are considered in equivalence.

Q6: Are both Digi-Reel® and Tape & Reel packaging types acceptable for substitutions?
A6: Yes, provided they match the surface mount TO-252-3, DPAK mechanical requirements for assembly.

Q7: Is operating temperature a concern for substitute selection?
A7: Substitute models indicate operating junction temperature (TJ) ratings within or above 150°C, as explicitly specified, ensuring suitability.

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