RRR030P03TL P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The RRR030P03TL is a P-Channel 30V 3A MOSFET manufactured by Rohm Semiconductor in TSMT3 surface mount package. This device is classified as "Not For New Designs," indicating it has reached end-of-life status. The part delivers 1W power dissipation at ambient temperature with a maximum drain-source voltage of 30V and continuous drain current of 3A at 25°C. Due to its discontinued design status, equivalent and substitute parts from active manufacturers are necessary for ongoing production and new design implementations.

Key Parameters

Parameter	Value	Unit
FET Type	P-Channel	—
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	3	A
Rds On (Max) @ 3A, 10V	75	mOhm
Power Dissipation (Max)	1	W
Gate Charge (Qg) @ 5V	5.2	nC
Input Capacitance (Ciss) @ 10V	480	pF
Vgs(th) @ 1mA	2.5	V
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package	TSMT3 (SC-96)	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the RRR030P03TL is determined by strict electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

FET Type: P-Channel (required match)
Drain to Source Voltage (Vdss): 30V minimum (equal or higher acceptable)
Continuous Drain Current (Id): 3A minimum at 25°C (equal or higher acceptable)
Rds On (Max): 75mOhm or lower at rated current and 10V gate drive (lower values acceptable)
Power Dissipation: 1W or higher (higher values acceptable)
Gate Charge (Qg): 5.2nC or lower (lower values acceptable for faster switching)
Vgs(th): 2.5V or lower (lower values acceptable for lower gate drive requirements)
Maximum Gate Voltage (Vgs): ±20V (equal or higher acceptable)

Mechanical Compatibility Criteria:

Mounting Type: Surface Mount (required match)
Package Type: SOT-23-3, TO-236-3, or SC-59 variants (pin-compatible alternatives acceptable)

Compliance Requirements:

RoHS3 Compliant (required match)
Moisture Sensitivity Level: 1 (Unlimited) (required match)

Substitute parts are grouped into two categories: Direct Electrical Equivalents (matching or exceeding all electrical parameters with active product status) and Functional Alternatives (meeting minimum electrical requirements with different package options or discontinued status).

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On @ 10V (mOhm)	Power Dissipation (W)	Qg @ 10V (nC)	Vgs(th) (V)	Package	Product Status
RRR030P03TL	Rohm Semiconductor	30	3	75	1	5.2	2.5	TSMT3	Not For New Designs
PJA3405-AU_R1_000A1	Panjit International Inc.	30	3.6	73	1.25	10	2.1	SOT-23	Active
PMV35EPER	Nexperia USA Inc.	30	5.3	45	1.2	19.2	3	TO-236AB	Active
AO3421E	Alpha & Omega Semiconductor Inc.	30	3	95	1.4	8	2.5	SOT-23-3	Not For New Designs
BSS308PEH6327XTSA1	Infineon Technologies	30	2	80	0.5	5	2	SOT-23-3	Active
DMG2307L-7	Diodes Incorporated	30	2.5	90	0.76	8.2	3	SOT-23-3	Not For New Designs
DMP3098L-7	Diodes Incorporated	30	3.8	70	1.08	—	2.1	SOT-23-3	Active
DMP3130L-7	Diodes Incorporated	30	3.5	77	0.7	12	1.3	SOT-23-3	Not For New Designs
DMP3160L-7	Diodes Incorporated	30	2.7	122	1.08	—	2.1	SOT-23-3	Active
FDN360P	onsemi	30	2	80	0.5	9	3	SOT-23-3	Active
IRLML5203TRPBF	Infineon Technologies	30	3	98	1.25	14	2.5	SOT-23-3	Active

Engineering Selection Recommendations

Tier 1: Direct Electrical Equivalents with Active Status

The following parts meet or exceed all electrical parameters of the RRR030P03TL while maintaining active product status and full RoHS3 compliance:

PJA3405-AU_R1_000A1 (Panjit International Inc.) provides superior drain current capability (3.6A vs. 3A) with lower on-resistance (73mOhm vs. 75mOhm) and higher power dissipation rating (1.25W vs. 1W). This part includes AEC-Q101 automotive qualification. Package transition from TSMT3 to SOT-23 requires PCB layout verification for pin compatibility.

DMP3098L-7 (Diodes Incorporated) delivers the highest drain current (3.8A) among active substitutes with the lowest on-resistance (70mOhm) at rated conditions. Power dissipation of 1.08W exceeds the original specification. SOT-23-3 package is pin-compatible with standard surface mount assembly processes.

Tier 2: Functional Alternatives with Active Status

PMV35EPER (Nexperia USA Inc.) offers significantly higher drain current (5.3A) and superior on-resistance (45mOhm), making it suitable for applications requiring higher current capacity. Higher gate charge (19.2nC) and input capacitance (793pF) may impact switching speed in high-frequency applications.

IRLML5203TRPBF (Infineon Technologies) matches the original 3A drain current specification exactly with HEXFET® technology. Higher on-resistance (98mOhm) and gate charge (14nC) represent trade-offs compared to the original part.

Tier 3: Reduced Current Alternatives

BSS308PEH6327XTSA1 (Infineon Technologies) and FDN360P (onsemi) both specify 2A continuous drain current, which is below the original 3A rating. These parts are suitable only for applications where the actual load current does not exceed 2A.

Parts Not Recommended for New Designs:

AO3421E, DMG2307L-7, and DMP3130L-7 carry "Not For New Designs" status and should not be selected for new product development despite meeting electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can I directly replace RRR030P03TL with any SOT-23-3 package MOSFET?

A: No. While SOT-23-3 is a standard surface mount package, electrical parameters must be verified. The substitute must meet minimum specifications: 30V Vdss, 3A continuous drain current, and 75mOhm or lower on-resistance at 10V gate drive. Pin assignment compatibility must also be confirmed, as some manufacturers use different pin configurations.

Q: What is the impact of higher on-resistance in substitute parts?

A: Lower on-resistance (Rds On) reduces power dissipation and heat generation during operation. Substitutes with higher on-resistance (such as IRLML5203TRPBF at 98mOhm vs. original 75mOhm) will dissipate more power. For applications operating at continuous 3A drain current, this difference translates to approximately 0.69W additional dissipation, requiring thermal management verification.

Q: Why do some substitutes have higher gate charge specifications?

A: Gate charge (Qg) determines the energy required to switch the MOSFET on and off. Higher gate charge (such as PMV35EPER at 19.2nC vs. original 5.2nC) requires more gate drive current or longer switching times. This affects circuit performance in high-frequency switching applications and may require gate driver circuit redesign.

Q: Is package change from TSMT3 to SOT-23-3 acceptable?

A: Package change requires PCB layout verification. Both TSMT3 and SOT-23-3 are three-terminal surface mount packages with similar footprints, but land pattern dimensions and thermal characteristics differ. Verify that the PCB footprint accommodates the new package and that thermal performance remains adequate for the application.

Q: What does "Not For New Designs" status mean for substitute selection?

A: Parts marked "Not For New Designs" are in end-of-life phase and may have limited availability or future discontinuation. For new product development, select only parts with "Active" product status to ensure long-term supply chain reliability and design longevity.

Q: Can I use a substitute with higher drain current rating?

A: Yes. A substitute with higher drain current rating (such as DMP3098L-7 at 3.8A or PMV35EPER at 5.3A) is electrically compatible and provides design margin. However, verify that the application circuit does not inadvertently draw excessive current due to the lower on-resistance of the substitute part.

Q: What compliance certifications are critical for my application?

A: All listed substitutes maintain RoHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the original part. If your application requires automotive qualification, PJA3405-AU_R1_000A1 includes AEC-Q101 certification. Verify additional compliance requirements (REACH, ECCN, HTSUS codes) with your supply chain and regulatory requirements.

Q: How do I verify thermal performance with a substitute part?

A: Compare power dissipation ratings and on-resistance values. Calculate worst-case power dissipation using P = I²R at maximum continuous drain current. Verify that the substitute's power dissipation rating and thermal resistance (Rθ) allow adequate heat dissipation in your application's thermal environment. Thermal modeling or testing may be required for high-current applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message