Equivalent & Substitute Parts for SP8M9TB

Part Overview

SP8M9TB by Rohm Semiconductor is a logic-level gate, N and P-Channel MOSFET array rated for 30V, with 9A/5A continuous drain current capability, 2W power handling, and surface mount packaging in an 8-SOP case. This product is designated as Obsolete, which necessitates the identification of alternative models for continued production, repair, or design continuity requirements.

Key Parameters

Parameter	SP8M9TB Value
Technology	MOSFET (Metal Oxide)
Configuration	N and P-Channel
FET Feature	Logic Level Gate
Drain to Source Voltage (Vdss)	30V
Current - Continuous Drain (Id) @ 25°C	9A, 5A
Rds On (Max) @ Id, Vgs	18mOhm @ 9A, 10V
Vgs(th) (Max) @ Id	2.5V @ 1mA
Gate Charge (Qg) (Max) @ Vgs	21nC @ 5V
Input Capacitance (Ciss) (Max) @ Vds	1190pF @ 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 is determined by strict matching across specified electrical and mechanical parameters within the Transistors, FETs, MOSFETs category. The key parameters for interchangeability are: technology type, channel configuration, logic-level gate feature, drain to source voltage (Vdss), continuous drain current (Id), maximum Rds On, Vgs(th), package/case, power handling, mounting type, RoHS status, and MSL level. Substitutes listed share these primary mechanical and electrical characteristics as provided.

Parameter Comparison

Parameter	SP8M9TB (Rohm Semiconductor)	AO4627 (Alpha & Omega Semiconductor Inc.)	DMC3025LSD-13 (Diodes Incorporated)
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Configuration	N and P-Channel	N and P-Channel	N and P-Channel
FET Feature	Logic Level Gate	Logic Level Gate	Logic Level Gate
Drain to Source Voltage (Vdss)	30V	30V	30V
Current - Continuous Drain (Id) @ 25°C	9A, 5A	4.5A, 3.5A	6.5A, 4.2A
Rds On (Max) @ Id, Vgs	18mOhm @ 9A, 10V	50mOhm @ 4.5A, 10V	20mOhm @ 7.4A, 10V
Vgs(th) (Max) @ Id	2.5V @ 1mA	2.5V @ 250µA	2V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	21nC @ 5V	5nC @ 10V	9.8nC @ 10V
Input Capacitance (Ciss) (Max) @ Vds	1190pF @ 10V	210pF @ 15V	501pF @ 15V
Power - Max	2W	2W	1.2W
Operating Temperature	150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOP	8-SOIC	8-SO
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The SP8M9TB is designated as Obsolete. Substitute parts AO4627 and DMC3025LSD-13 are active, ROHS3 Compliant, and share an unlimited Moisture Sensitivity Level (MSL 1). All listed parts are available in compatible surface mount 8-SOIC/8-SOP packages and meet compliance criteria as per the provided data.

Frequently Asked Questions (FAQ)

Q1: What parameters are critical when selecting a substitute for SP8M9TB in a circuit?
A1: Selection requires matching technology, channel configuration, logic-level gate feature, drain to source voltage, continuous drain current, Rds On, threshold voltage, package type, power rating, mounting style, RoHS compliance, and MSL as listed in the parameter comparison.

Q2: Are the substitute parts mechanically compatible with the SP8M9TB footprint?
A2: All substitute parts are supplied in 8-SOIC or 8-SOP surface-mount packages with 0.154" (3.90mm width), maintaining mechanical compatibility.

Q3: Are the substitutes compliant with the same regulatory and environmental standards?
A3: The substitutes AO4627 and DMC3025LSD-13 are ROHS3 compliant and have an MSL of 1 (Unlimited), consistent with the SP8M9TB.

Q4: What differences exist in electrical performance among the substitutes?
A4: Differences include current ratings, Rds On, gate charge, and input capacitance. Specific values are detailed in the parameter comparison table.

Q5: Are there notable differences in maximum power rating among the substitute options?
A5: The AO4627 matches the original in maximum power (2W), while DMC3025LSD-13 is rated at 1.2W. All other critical parameters are preserved as specified.

Q6: Is the thermal operating range consistent among the options?
A6: All substitute parts support an operating temperature range up to 150°C (TJ), equivalent to the original specification.

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