TSM042N03CS Equivalent & Substitute Parts Reference

Part Overview

The TSM042N03CS is an N-Channel MOSFET supplied by Taiwan Semiconductor Corporation in the category of Transistors, FETs, MOSFETs. It features a 30V drain-to-source voltage, 30A current handling capability, a maximum power dissipation of 7W (Tc), and an 8-SOP surface-mount package. This device has an active part status. Identifying alternative models is a routine engineering requirement to ensure supply chain continuity and maintain compatibility with design and compliance criteria when primary inventory status changes or procurement schedules require qualified substitutes.

Key Parameters

Manufacturer Part Number	FET Type	Technology	Drain to Source Voltage (Vdss)	Current - Continuous Drain (Id) @ 25°C	Rds On (Max) @ Id, Vgs	Vgs(th) (Max) @ Id	Gate Charge (Qg) (Max) @ Vgs	Vgs (Max)	Input Capacitance (Ciss) (Max) @ Vds	Power Dissipation (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	Packaging	RoHS Status	REACH Status	ECCN
TSM042N03CS	N-Channel	MOSFET (Metal Oxide)	30 V	30A (Tc)	4.2mOhm @ 12A, 10V	2.5V @ 250µA	24 nC @ 4.5 V	±20V	2200 pF @ 25 V	7W (Tc)	175°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOP	Tape & Reel (TR)	ROHS3 Compliant	REACH Unaffected	EAR99

Substitute Part Grouping Explanation

Substitutes for TSM042N03CS are determined solely by equivalence in key electrical and mechanical parameters relevant to MOSFET performance and compatibility within the specified product category. These parameters include FET type, technology, drain-to-source voltage (Vdss), continuous drain current (Id), maximum Rds On, gate threshold voltage (Vgs(th)), total gate charge (Qg), maximum gate-source voltage (Vgs), input capacitance (Ciss), power dissipation (Pd), operating temperature, mounting type, package, device package, packaging type, RoHS, REACH, and ECCN compliance. Only substitutes matching all these parameters are listed as suitable alternatives.

Parameter Comparison

Parameter	TSM042N03CS	TSM042N03CS RLG
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
FET Type	N-Channel	N-Channel
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	30 V	30 V
Current - Continuous Drain (Id) @ 25°C	30A (Tc)	30A (Tc)
Rds On (Max) @ Id, Vgs	4.2mOhm @ 12A, 10V	4.2mOhm @ 12A, 10V
Vgs(th) (Max) @ Id	2.5V @ 250µA	2.5V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	24 nC @ 4.5 V	24 nC @ 4.5 V
Vgs (Max)	±20V	±20V
Input Capacitance (Ciss) (Max) @ Vds	2200 pF @ 25 V	2200 pF @ 25 V
Power Dissipation (Max)	7W (Tc)	7W (Tc)
Operating Temperature	175°C (TJ)	175°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOP	8-SOP
Packaging	Tape & Reel (TR)	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

TSM042N03CS and TSM042N03CS RLG have equivalent parameters, active product status, and identical environmental compliance (ROHS3, REACH Unaffected) and ECCN classification (EAR99). Both variants are suitable for selection where such compliance documentation is required. Selection between these parts can be made based solely on inventory and procurement status.

Frequently Asked Questions (FAQ)

Q1: What criteria must substitute MOSFETs meet for the TSM042N03CS?
A1: Substitute MOSFETs for TSM042N03CS must match all key electrical parameters (Vdss, Id, Rds On, Vgs(th), Qg, Ciss), mounting type, package, and compliance (RoHS, REACH, ECCN).

Q2: Are the TSM042N03CS and TSM042N03CS RLG interchangeable in all applications?
A2: TSM042N03CS and TSM042N03CS RLG have identical key parameters and form factors, supporting interchangeable use in applications requiring those specifications.

Q3: Does package designation affect device footprint compatibility?
A3: Both TSM042N03CS and TSM042N03CS RLG use the 8-SOIC (0.154", 3.90mm Width) package and 8-SOP device package, ensuring consistent footprint compatibility.

Q4: Are there differences in environmental or import/export compliance?
A4: Both part numbers are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99, ensuring equivalent compliance for worldwide use.

Q5: Is there any electrical or thermal performance difference between TSM042N03CS and TSM042N03CS RLG?
A5: According to the provided specifications, there is no difference in electrical or thermal performance between TSM042N03CS and TSM042N03CS RLG.

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