SP8K3TB Equivalent & Substitute Parts Reference

Part Overview

The Rohm Semiconductor SP8K3TB is a dual N-channel MOSFET, designed for surface mount applications in the category of Transistors, FETs, MOSFETs. With a drain-to-source voltage of 30V, a continuous drain current of 7A, logic level gate drive, and an 8-SOP package, this device is suitable for various switching and power management applications. The product is active and ROHS3 compliant with unlimited MSL. Situations such as supply constraints, lead time issues, or the need for second sourcing require the identification of equivalent and substitute MOSFETs with closely matching electrical and mechanical parameters.

Key Parameters

Parameter	SP8K3TB Value
Manufacturer	Rohm Semiconductor
Configuration	2 N-Channel (Dual)
Drain to Source Voltage (Vdss)	30V
Current - Continuous Drain (Id) @ 25°C	7A
Rds On (Max) @ Id, Vgs	24mOhm @ 7A, 10V
Vgs(th) (Max) @ Id	2.5V @ 1mA
Gate Charge (Qg) (Max) @ Vgs	11.8nC @ 5V
Input Capacitance (Ciss) (Max) @ Vds	600pF @ 10V
Power - Max	2W
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOP
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SP8K3TB is based strictly on the following electrical and mechanical parameters:

Configuration: 2 N-Channel (Dual) MOSFET
Drain to Source Voltage (Vdss): 30V
Continuous Drain Current (Id)
Rds On (Max) at specified Id and Vgs
Gate Threshold Voltage (Vgs(th))
Gate Charge (Qg)
Input Capacitance (Ciss)
Maximum Power Dissipation
Package/Case: Compatibility with 8-SOIC or equivalent dimensional footprint
Mounting Type: Surface Mount
Operating Temperature
ROHS compliance and moisture sensitivity

These parameters ensure compatibility and functional equivalence in circuit performance and fit.

Parameter Comparison

Manufacturer Part Number	Manufacturer	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	Input Capacitance (Ciss) (Max) @ Vds	Power - Max	Operating Temperature	Configuration	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	MSL
SP8K3TB	Rohm Semiconductor	30V	7A	24mOhm @ 7A, 10V	2.5V @ 1mA	11.8nC @ 5V	600pF @ 10V	2W	150°C (TJ)	2 N-Channel (Dual)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOP	ROHS3 Compliant	1 (Unlimited)
SH8KA2TB1	Rohm Semiconductor	30V	8A (Ta)	28mOhm @ 8A, 10V	2.5V @ 1mA	8nC @ 10V	330pF @ 15V	2W (Ta)	150°C (TJ)	2 N-Channel (Dual)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOP	ROHS3 Compliant	1 (Unlimited)
AO4818B	Alpha & Omega Semiconductor Inc.	30V	8A	19mOhm @ 8A, 10V	2.4V @ 250µA	18nC @ 10V	888pF @ 15V	2W	-55°C ~ 150°C (TJ)	2 N-Channel (Dual)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	ROHS3 Compliant	1 (Unlimited)
DMN3018SSD-13	Diodes Incorporated	30V	6.7A	22mOhm @ 10A, 10V	2.1V @ 250µA	13.2nC @ 10V	697pF @ 15V	1.5W	-55°C ~ 150°C (TJ)	2 N-Channel (Dual)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SO	ROHS3 Compliant	1 (Unlimited)
DMN3024LSD-13	Diodes Incorporated	30V	6.8A	24mOhm @ 7A, 10V	3V @ 250µA	12.9nC @ 10V	608pF @ 15V	1.8W	-55°C ~ 150°C (TJ)	2 N-Channel (Dual)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SO	ROHS3 Compliant	1 (Unlimited)
FDS8984	onsemi	30V	7A	23mOhm @ 7A, 10V	2.5V @ 250µA	13nC @ 10V	635pF @ 15V	1.6W	-55°C ~ 150°C (TJ)	2 N-Channel (Dual)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	ROHS3 Compliant	1 (Unlimited)
STS10DN3LH5	STMicroelectronics	30V	10A	21mOhm @ 5A, 10V	1V @ 250µA	4.6nC @ 5V	475pF @ 25V	2.5W	-55°C ~ 150°C (TJ)	2 N-Channel (Dual)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	ROHS3 Compliant	1 (Unlimited)
STS8DN3LLH5	STMicroelectronics	30V	10A	19mOhm @ 5A, 10V	1V @ 250µA	5.4nC @ 4.5V	724pF @ 25V	2.7W	-55°C ~ 150°C (TJ)	2 N-Channel (Dual)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	ROHS3 Compliant	1 (Unlimited)

Engineering Selection Recommendations

All parts in the comparison table have an active status unless otherwise noted. Each substitute is compliant with ROHS3 and has an MSL of 1 (Unlimited). These parts meet surface mount and package compatibility requirements as specified. Product selection must align with inventory status and supplied certifications. No unlisted certifications are referenced.

Frequently Asked Questions (FAQ)

Q1: What are the primary parameters to consider when substituting SP8K3TB in an application?
A1: Key parameters are configuration, drain to source voltage (Vdss), continuous drain current (Id), Rds On (Max), threshold voltage (Vgs(th)), gate charge (Qg), input capacitance (Ciss), power dissipation, package type, and environmental compliance.

Q2: Are all listed substitute MOSFETs compatible in terms of package and mounting?
A2: All substitutes are specified in the 8-SOIC (or 8-SOP) surface mount package with a width of 0.154", 3.90mm, ensuring mechanical compatibility.

Q3: How do I ensure functional equivalence when selecting a substitute?
A3: Compare electrical ratings, package, and environmental compliance as shown in the parameter comparison table to ensure that all specified requirements are met.

Q4: Is there any difference in compliance or reliability between the original and substitute parts?
A4: All listed parts are ROHS3 compliant and rated MSL 1 (Unlimited). There is no difference in compliance status based on the provided data.

Q5: Can the substitute components be used interchangeably with SP8K3TB in a qualified design?
A5: Compatibility is determined based strictly on the listed key parameters and package equivalence. All listed substitutes align within these constraints as detailed above.

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