RSS050P03TB Equivalent & Substitute MOSFETs Reference Guide

Part Overview

The RSS050P03TB from Rohm Semiconductor is a P-Channel MOSFET optimized for applications requiring a 30 V drain-source voltage and up to 5A continuous current in a surface-mount 8-SOP/8-SOIC package. The component is classified as active, ROHS3 compliant, and REACH unaffected. Identifying and qualifying substitute parts is essential for supply chain flexibility, ensuring continued manufacturing, and mitigating inventory risks.

Key Parameters

Parameter	Value
Manufacturer Part Number	RSS050P03TB
Manufacturer	Rohm Semiconductor
Category	Transistors, FETs, MOSFETs
FET Type	P-Channel
Technology	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	30 V
Current - Continuous Drain (Id) @ 25°C	5A (Ta)
Drive Voltage (Max Rds On, Min Rds On)	4V, 10V
Rds On (Max) @ Id, Vgs	42mOhm @ 5A, 10V
Vgs(th) (Max) @ Id	2.5V @ 1mA
Gate Charge (Qg) (Max) @ Vgs	13 nC @ 5 V
Vgs (Max)	±20V
Input Capacitance (Ciss) (Max) @ Vds	1200 pF @ 10 V
Power Dissipation (Max)	2W (Ta)
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Supplier Device Package	8-SOP
Package / Case	8-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution is strictly determined using the following allowed parameters: FET type, technology, drain-source voltage, continuous drain current, drive voltage, maximum Rds On, gate threshold voltage, gate charge, maximum Vgs, input capacitance, maximum power dissipation, operating temperature, mounting type, package size and style, RoHS and REACH status, and moisture sensitivity level. Only MOSFETs in the Transistors, FETs, MOSFETs category with a P-Channel configuration and matching electrical and mechanical characteristics can be considered substitutes.

Parameter Comparison

Part Number	Vdss	Id @ 25°C	Rds On (Max)	Vgs(th) (Max)	Gate Charge (Qg) (Max)	Vgs (Max)	Ciss (Max)	Power Dissipation (Max)	Operating Temperature	Mounting Type	Package / Case	RoHS Status	MSL	Product Status
RSS050P03TB	30 V	5A	42mOhm @ 5A, 10V	2.5V @ 1mA	13 nC @ 5 V	±20V	1200 pF @ 10 V	2W (Ta)	150°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm)	ROHS3	1	Active
RRH050P03TB1	30 V	5A	50mOhm @ 5A, 10V	2.5V @ 1mA	9.2 nC @ 5 V	±20V	850 pF @ 10 V	650mW (Ta)	150°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm)	ROHS3	1	Active
RS3E075ATTB1	30 V	7.5A	23.5mOhm @ 7.5A, 10V	2.5V @ 1mA	25 nC @ 10 V	±20V	1250 pF @ 15 V	2W (Ta)	150°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm)	ROHS3	1	Active
AO4449	30 V	7A	34mOhm @ 7A, 10V	2.4V @ 250µA	16 nC @ 10 V	±20V	910 pF @ 15 V	3.1W (Ta)	-55°C ~ 150°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm)	ROHS3	1	Not For New Designs
FDS9435A	30 V	5.3A	50mOhm @ 5.3A, 10V	3V @ 250µA	14 nC @ 10 V	±25V	528 pF @ 15 V	2.5W (Ta)	-55°C ~ 175°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm)	ROHS3	1	Active
IRF7241TRPBF	40 V	6.2A	41mOhm @ 6.2A, 10V	3V @ 250µA	80 nC @ 10 V	±20V	3220 pF @ 25 V	2.5W (Ta)	-55°C ~ 150°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm)	ROHS3	1	Active
SI4485DY-T1-GE3	30 V	6A	42mOhm @ 5.9A, 10V	2.5V @ 250µA	21 nC @ 10 V	±20V	590 pF @ 15 V	2.4W (Ta)	-55°C ~ 150°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm)	ROHS3	1	Active
ZXMP3A16N8TA	30 V	5.6A	40mOhm @ 4.2A, 10V	1V @ 250µA	29.6 nC @ 10 V	±20V	1022 pF @ 15 V	1.9W (Ta)	-55°C ~ 150°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm)	ROHS3	1	Active

Engineering Selection Recommendations

Selection is based on matching product status, RoHS status, REACH status, and moisture sensitivity level. All listed substitutes are ROHS3 compliant and have MSL 1 (Unlimited). If maintaining only active product flow is required, exclude AO4449 (Not For New Designs). All substitutes conform to REACH unaffected status. The package format is consistent for all parts, supporting direct replacement in typical surface-mount manufacturing processes. For compliance-driven designs, select only parts designated as active and with matching regulatory specifications.

Frequently Asked Questions (FAQ)

Q1. Which key criteria must be met for a MOSFET to substitute RSS050P03TB?
A1. Only P-Channel MOSFETs in an identical package size/type, with comparable or better electrical ratings, and identical compliance attributes (ROHS3, REACH status, MSL) can be considered equivalent substitutes.

Q2. Is the package format identical among all listed substitutes?
A2. All substitute parts utilize the 8-SOIC (0.154", 3.90mm width) surface-mount package, ensuring mechanical compatibility.

Q3. What compliance specifications are required for substitution?
A3. Substitute MOSFETs must maintain ROHS3 compliance, be REACH unaffected, and have an MSL level of 1 (Unlimited).

Q4. Are there differences in the electrical characteristics that affect substitution?
A4. While continuous drain current, resistance, and other parameters may vary, all substitutes provided are within the same class of component and comply with the key electrical requirements stated for the RSS050P03TB.

Q5. Can inactive or not-for-new-designs status parts be substituted?
A5. For inventory continuity and new designs, select only those MOSFETs specified as "Active" in the product status field.

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