DMP3100L-7 Equivalent & Substitute Parts

Part Overview

The DMP3100L-7 is a P-Channel 30V 2.7A MOSFET manufactured by Diodes Incorporated in SOT-23-3 surface mount packaging. This device is classified as Obsolete, indicating it is no longer in active production. The obsolete status necessitates identification of equivalent substitute components that maintain functional compatibility for existing designs or legacy system support. Substitute parts must satisfy the electrical and mechanical parameters required for direct replacement without circuit redesign.

Key Parameters

Parameter	DMP3100L-7 Value	Unit
FET Type	P-Channel	—
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	2.7	A
Rds On (Max) @ Id, Vgs	100	mOhm @ 2.7A, 10V
Vgs(th) (Max) @ Id	2.1	V @ 250µA
Power Dissipation (Max)	1.08	W (Ta)
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	SOT-23-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the DMP3100L-7 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

FET Type: P-Channel
Drain to Source Voltage (Vdss): 30V minimum
Package Type: SOT-23-3 surface mount
Operating Temperature Range: -55°C to 150°C (TJ)
RoHS Compliance: ROHS3 Compliant

Performance Parameters (Functional Compatibility):

Continuous Drain Current (Id): Minimum 2.7A at 25°C
Rds On (Max): Must not exceed 100mOhm at rated conditions
Vgs(th) (Max): Must not exceed 2.1V at 250µA
Power Dissipation: Minimum 1.08W (Ta)

Substitute parts are grouped into two categories: Direct Manufacturer Substitutes (same manufacturer, optimized for replacement) and MFR Recommended Substitutes (alternative manufacturers, verified electrical equivalence). All listed substitutes maintain P-Channel topology, 30V Vdss rating, SOT-23-3 packaging, and full temperature range operation.

Parameter Comparison

Parameter	DMP3100L-7	DMG2307L-7	AO3403	FDN358P	RRR030P03TL	SI2307CDS-T1-GE3	Unit
Manufacturer	Diodes Inc.	Diodes Inc.	Alpha & Omega	onsemi	Rohm	Vishay	—
FET Type	P-Channel	P-Channel	P-Channel	P-Channel	P-Channel	P-Channel	—
Vdss	30	30	30	30	30	30	V
Id @ 25°C	2.7	2.5	2.6	1.5	3.0	3.5	A
Rds On (Max) @ Id, Vgs	100 @ 2.7A, 10V	90 @ 2.5A, 10V	115 @ 2.6A, 10V	125 @ 1.5A, 10V	75 @ 3A, 10V	88 @ 3.5A, 10V	mOhm
Vgs(th) (Max) @ Id	2.1 @ 250µA	3.0 @ 250µA	1.4 @ 250µA	3.0 @ 250µA	2.5 @ 1mA	3.0 @ 250µA	V
Vgs (Max)	±20	±20	±12	±20	±20	±20	V
Ciss (Max) @ Vds	227 @ 10V	371.3 @ 15V	315 @ 15V	182 @ 15V	480 @ 10V	340 @ 15V	pF
Power Dissipation (Max)	1.08 (Ta)	0.76 (Ta)	1.4 (Ta)	0.5 (Ta)	1.0 (Ta)	1.1 (Ta)	W
Operating Temperature	-55 to 150	-55 to 150	-55 to 150	-55 to 150	to 150	-55 to 150	°C (TJ)
Package	SOT-23-3	SOT-23-3	SOT-23-3	SOT-23-3	TSMT3	SOT-23-3	—
Product Status	Obsolete	Not For New Designs	Not For New Designs	Active	Not For New Designs	Active	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

Direct Manufacturer Substitute (Diodes Incorporated):

The DMG2307L-7 is a direct substitute from the same manufacturer. It maintains 30V Vdss, SOT-23-3 packaging, and full temperature range operation. The continuous drain current is rated at 2.5A, which is 0.2A lower than the DMP3100L-7. The Rds On is improved at 90mOhm versus 100mOhm. Product status is "Not For New Designs," indicating limited availability for future procurement.

MFR Recommended Substitutes (Active Product Status):

FDN358P (onsemi) and SI2307CDS-T1-GE3 (Vishay) are both classified as Active products, ensuring long-term availability and supply chain stability. The FDN358P operates at 1.5A continuous drain current, which is below the DMP3100L-7 specification and may not be suitable for applications requiring the full 2.7A rating. The SI2307CDS-T1-GE3 is rated at 3.5A continuous drain current, exceeding the original specification, with improved Rds On of 88mOhm and maintained SOT-23-3 packaging. Both devices are ROHS3 compliant and operate across the -55°C to 150°C temperature range.

Alternative Substitutes:

AO3403 (Alpha & Omega) provides 2.6A continuous drain current with 115mOhm Rds On in SOT-23-3 packaging. Vgs (Max) is limited to ±12V versus ±20V on the original part. Product status is "Not For New Designs."

RRR030P03TL (Rohm) offers 3.0A continuous drain current with superior Rds On of 75mOhm but uses TSMT3 packaging instead of SOT-23-3, requiring PCB layout modification. Product status is "Not For New Designs."

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the original DMP3100L-7 certifications. Moisture Sensitivity Level (MSL) is 1 (Unlimited) across all options.

Frequently Asked Questions (FAQ)

Q: Can the DMG2307L-7 directly replace the DMP3100L-7 in all applications?

A: The DMG2307L-7 is electrically compatible for applications requiring up to 2.5A continuous drain current. If the circuit design requires the full 2.7A rating of the DMP3100L-7, the DMG2307L-7 may operate outside its rated specifications. Verify circuit current requirements before substitution.

Q: Why is the FDN358P listed as a substitute if it only supports 1.5A?

A: The FDN358P is included as a substitute option for applications where the continuous drain current requirement is 1.5A or less. It is not suitable for circuits requiring the full 2.7A capability of the DMP3100L-7. Confirm actual circuit current draw before selection.

Q: What is the advantage of SI2307CDS-T1-GE3 over other substitutes?

A: The SI2307CDS-T1-GE3 is classified as an Active product, ensuring long-term availability and supply chain continuity. It exceeds the original 2.7A specification at 3.5A, provides improved Rds On of 88mOhm, and maintains SOT-23-3 packaging without layout modification. These characteristics make it suitable for new designs requiring P-Channel 30V MOSFET functionality.

Q: Does RRR030P03TL require PCB redesign?

A: Yes. The RRR030P03TL uses TSMT3 packaging (SC-96) instead of the SOT-23-3 (TO-236-3) package of the DMP3100L-7. PCB footprint modification is required for this substitution. Pin configuration and lead spacing differ between packages.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH Unaffected, matching the environmental compliance status of the DMP3100L-7.

Q: What is the difference between "Not For New Designs" and "Active" product status?

A: "Active" status indicates the manufacturer continues production and supports long-term supply. "Not For New Designs" indicates the product is in mature or declining production phase, with limited availability guarantees. For new circuit designs, Active status products are preferred for supply chain reliability.

Q: Can I use AO3403 if my circuit operates at ±12V gate voltage?

A: The AO3403 is rated for ±12V maximum gate voltage, while the DMP3100L-7 supports ±20V. If your circuit applies gate voltages exceeding ±12V, the AO3403 will not operate within specification and substitution is not permitted.

Q: How do I determine which substitute is best for my application?

A: Verify three critical parameters: (1) Required continuous drain current at 25°C—select a substitute rated at or above this value; (2) Required gate voltage range—ensure the substitute Vgs (Max) accommodates your circuit; (3) Package compatibility—confirm SOT-23-3 packaging or plan for PCB redesign if using alternative packages. Cross-reference these requirements against the Parameter Comparison table.

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