Equivalent & Substitute Parts for 2SK3003 MOSFET

Part Overview

The 2SK3003 from Sanken Electric USA Inc. is an N-Channel MOSFET designed for use in power electronic applications requiring 200V operation and 18A current capability. It is supplied in a TO-220F through-hole package and is currently listed as active status with RoHS compliance. Alternative models are required when design constraints, lead times, inventory, or procurement issues prevent the use of the original 2SK3003 part, or when equivalent electrical and mechanical parameters must be satisfied.

Key Parameters

Parameter	2SK3003
FET Type	N-Channel
Drain to Source Voltage (Vdss)	200 V
Current - Continuous Drain (Id) @ 25°C	18A (Ta)
Drive Voltage (Max Rds On, Min Rds On)	10V
Rds On (Max) @ Id, Vgs	175mOhm @ 9A, 10V
Vgs(th) (Max) @ Id	4V @ 1mA
Vgs (Max)	±20V
Input Capacitance (Ciss) (Max) @ Vds	850 pF @ 10 V
Power Dissipation (Max)	35W (Tc)
Operating Temperature	150°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-220-3 Full Pack
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitute or equivalent parts for the 2SK3003 MOSFET are determined strictly by the following key parameters:

FET Type (N-Channel)
Drain to Source Voltage (Vdss: 200 V)
Current - Continuous Drain (Id)
Drive Voltage (for Rds On spec)
Rds On (Max) value at specified conditions
Vgs(th) (Gate Threshold Voltage) Max
Vgs (Max) rating
Input Capacitance (Ciss) Max
Power Dissipation (Max)
Operating Temperature (TJ)
Mounting Type (Through Hole)
Package / Case (TO-220 Full Pack or equivalent isolated tab variants)
RoHS Status

Only substitute models explicitly matching or closely aligning with these parameters are considered suitable alternatives.

Parameter Comparison

Part Number	FET Type	Drain to Source Voltage (Vdss)	Current - Continuous Drain (Id) @ 25°C	Drive Voltage (Max Rds On, Min Rds On)	Rds On (Max) @ Id, Vgs	Vgs(th) (Max) @ Id	Vgs (Max)	Input Capacitance (Ciss) (Max)	Power Dissipation (Max)	Operating Temperature	Mounting Type	Package / Case	RoHS Status
2SK3003	N-Channel	200 V	18A (Ta)	10V	175mOhm @ 9A, 10V	4V @ 1mA	±20V	850 pF @ 10 V	35W (Tc)	150°C (TJ)	Through Hole	TO-220-3 Full Pack	RoHS Compliant
FQPF19N20C	N-Channel	200 V	19A (Tc)	10V	170mOhm @ 9.5A, 10V	4V @ 250µA	±30V	1080 pF @ 25 V	43W (Tc)	-55°C ~ 150°C (TJ)	Through Hole	TO-220-3 Full Pack	ROHS3 Compliant
IRFI640GPBF	N-Channel	200 V	9.8A (Tc)	10V	180mOhm @ 5.9A, 10V	4V @ 250µA	±20V	1300 pF @ 25 V	40W (Tc)	-55°C ~ 150°C (TJ)	Through Hole	TO-220-3 Full Pack, Isolated Tab	ROHS3 Compliant
RCX160N20	N-Channel	200 V	16A (Tc)	10V	180mOhm @ 8A, 10V	5.25V @ 1mA	±30V	1370 pF @ 25 V	2.23W (Ta), 40W (Tc)	150°C (TJ)	Through Hole	TO-220-3 Full Pack	ROHS3 Compliant
STF19NF20	N-Channel	200 V	15A (Tc)	10V	160mOhm @ 7.5A, 10V	4V @ 250µA	±20V	800 pF @ 25 V	25W (Tc)	-55°C ~ 150°C (TJ)	Through Hole	TO-220-3 Full Pack	ROHS3 Compliant
STF20NF20	N-Channel	200 V	18A (Tc)	10V	125mOhm @ 10A, 10V	4V @ 250µA	±20V	940 pF @ 25 V	30W (Tc)	-55°C ~ 175°C (TJ)	Through Hole	TO-220-3 Full Pack	ROHS3 Compliant

Engineering Selection Recommendations

All substitute MOSFETs listed maintain active product status and supply RoHS-compliant certification. Each part conforms to key electrical and mechanical parameters as specified. Only models that meet explicit compliance and certification requirements are eligible for direct substitution under regulated procurement or environmental criteria.

Frequently Asked Questions (FAQ)

Q1. What parameters must match for MOSFET substitution in this category?
Substitution is determined by matching FET type (N-Channel), drain-source voltage rating (200 V), current capability, Rds On values, gate threshold voltage, package type, mounting method, and RoHS compliance.

Q2. Are all substitutes listed provided in a comparable through-hole TO-220 package?
All substitutes use TO-220-3 Full Pack or equivalent isolated tab packaging, ensuring mechanical compatibility with designs using 2SK3003.

Q3. How is RoHS status relevant for substitutes?
RoHS-compliant status is mandatory when adhering to restriction of hazardous substances in certain markets and applications; all listed substitutes are RoHS certified per provided specifications.

Q4. Can differences in drive voltage or current rating affect substitution?
Substitutes are selected with drive voltage and current ratings at or above those of 2SK3003 per specification, ensuring electrical parameter compliance.

Q5. Is thermal rating or power dissipation a critical selection factor?
Power dissipation (Tc) and operating temperature are matched to application requirements. All substitutes provide comparable or higher thermal capabilities, matching the original device per provided parameters.

Q6. What package features must remain consistent for direct replacement?
Mounting type (through-hole) and supplier device package (TO-220 Full Pack or isolated tab variant) must match to maintain pin-out, form factor, and mechanical fit.

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