SP8M3TB Equivalent & Substitute Parts Reference

Part Overview

The SP8M3TB from Rohm Semiconductor is a MOSFET array featuring both N-channel and P-channel devices in a surface-mount 8-SOP package. Key parameters include a maximum drain-source voltage of 30V, continuous drain current of 5A/4.5A, Rds(on) up to 51mOhm at 10V, logic-level gate drive, and a maximum power rating of 2W. The product is current and active. Identifying equivalent and substitute MOSFETs is critical in cases of inventory shortages, supply chain optimization, or design flexibility, ensuring continued assembly compatibility and electrical performance.

Key Parameters

Parameter	SP8M3TB Value
Manufacturer	Rohm Semiconductor
Category	Transistors, FETs, MOSFETs
Configuration	N and P-Channel
Drain to Source Voltage (Vdss)	30V
Current - Continuous Drain (Id) @ 25°C	5A, 4.5A
Rds On (Max) @ Id, Vgs	51mOhm @ 5A, 10V
Vgs(th) (Max) @ Id	2.5V @ 1mA
Gate Charge (Qg) (Max) @ Vgs	3.9nC @ 5V
Input Capacitance (Ciss) (Max) @ Vds	230pF @ 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
Product Status	Active
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution eligibility for the SP8M3TB MOSFET array is strictly determined by several electrical and mechanical parameters. Key criteria include configuration (N and P-Channel MOSFET array), maximum drain-to-source voltage (30V), continuous drain current, Rds(on) at specific test conditions, gate threshold voltage, logic-level gate feature, maximum power dissipation, mounting type (surface mount), and exact package dimensions (8-SOIC/8-SOP, 0.154", 3.90mm Width). Only products matching or exceeding the electrical and mechanical thresholds set by these parameters qualify as substitutes.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (Max) @ Id, Vgs	Vgs(th) (Max) @ Id	Qg (Max) @ Vgs	Ciss (Max) @ Vds	Pd (W)	Operating Temp.	Mounting Type	Package / Case	Product Status	RoHS	MSL	REACH
SP8M3TB	Rohm	30	5, 4.5	51mΩ @ 5A, 10V	2.5V @ 1mA	3.9nC @ 5V	230pF @ 10V	2	150°C (TJ)	Surface Mount	8-SOIC (3.90mm)	Active	ROHS3	1	Unaffected
SP8M3HZGTB	Rohm	30	5, 4.5	51mΩ @ 5A, 10V; 56mΩ @ 4.5A, 10V	2.5V @ 1mA	3.9nC @ 5V; 8.5nC @ 5V	230pF @ 10V; 850pF @ 10V	2	150°C (TJ)	Surface Mount	8-SOIC (3.90mm)	Active	ROHS3	1	Unaffected
DMC3028LSD-13	Diodes Inc.	30	6.6, 6.8	28mΩ @ 6A, 10V	3V @ 250µA	10.5nC @ 10V	472pF @ 15V	1.8	-55°C ~ 150°C (TJ)	Surface Mount	8-SOIC (3.90mm)	Active	ROHS3	1	Unaffected
IRF7317TRPBF	Infineon	20	6.6, 5.3	29mΩ @ 6A, 4.5V	700mV @ 250µA	27nC @ 4.5V	900pF @ 15V	2	-55°C ~ 150°C (TJ)	Surface Mount	8-SOIC (3.90mm)	Last Time Buy	ROHS3	1	Unaffected
IRF7319TRPBF	Infineon	30	-	29mΩ @ 5.8A, 10V	1V @ 250µA	33nC @ 10V	650pF @ 25V	2	-55°C ~ 150°C (TJ)	Surface Mount	8-SOIC (3.90mm)	Active	ROHS3	1	Unaffected
IRF9389TRPBF	Infineon	30	6.8, 4.6	27mΩ @ 6.8A, 10V	2.3V @ 10µA	14nC @ 10V	398pF @ 15V	2	-55°C ~ 150°C (TJ)	Surface Mount	8-SOIC (3.90mm)	Active	ROHS3	1	Unaffected

Engineering Selection Recommendations

All listed substitute parts for SP8M3TB are active, comply with ROHS3, are REACH unaffected, and have a Moisture Sensitivity Level of 1 (Unlimited). All substitutes use the same surface-mount 8-SOIC (3.90mm width) package as the main device.

Frequently Asked Questions (FAQ)

Q1: What are the key criteria for selecting substitutes for the SP8M3TB MOSFET array?
A1: Only devices matching the original’s configuration (N and P-Channel), 30V drain-source voltage, surface mount 8-SOIC package, comparable Rds(on), current rating, and power dissipation are considered substitutes.

Q2: Are the substitute MOSFETs pin-compatible with SP8M3TB?
A2: All substitutes listed use the 8-SOIC (0.154", 3.90mm Width) surface-mount package, supporting compatibility at the board level.

Q3: How does compliance affect substitute selection?
A3: Each substitute is ROHS3 compliant, REACH unaffected, and designated MSL 1, ensuring equivalent environmental and handling standards.

Q4: Is package size uniform across these substitute options?
A4: All substitutes utilize the 8-SOIC (0.154", 3.90mm Width) or 8-SOP standard, aligning package form factor for mechanical compatibility.

Q5: Can lower or higher current and Rds(on) values affect substitution?
A5: Only values matching or exceeding the original parameters are considered, as detailed in the provided comparison table. Exact matching or better performance is required by the selection logic.

Q6: Is product status considered in substitute selection?
A6: Only active and last time buy products are included, ensuring ongoing availability or final ordering opportunity.

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