FDV302P Equivalent & Substitute Parts

Part Overview

The FDV302P is a P-Channel MOSFET manufactured by onsemi, rated for 25V drain-to-source voltage with 120mA continuous drain current at 25°C. The device is housed in a SOT-23-3 surface mount package and dissipates a maximum of 350mW. The FDV302P is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity.

Key Parameters

Parameter	Value	Unit
FET Type	P-Channel	—
Drain to Source Voltage (Vdss)	25	V
Continuous Drain Current (Id) @ 25°C	120	mA
Rds On (Max) @ Id, Vgs	10 @ 200mA, 4.5V	Ohm
Power Dissipation (Max)	350	mW
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package	SOT-23-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the FDV302P are classified into two categories based on electrical and mechanical compatibility:

Direct Substitutes (Electrical Upgrade Path): Parts that maintain identical voltage ratings (25V Vdss), SOT-23-3 package form factor, and operating temperature range while offering enhanced current handling or improved on-resistance characteristics. These parts are pin-compatible and functionally interchangeable within the same circuit topology.

Similar Substitutes (Functional Equivalents with Package Variation): Parts that maintain the same voltage rating (25V Vdss), P-Channel configuration, and operating temperature range but differ in current capacity, on-resistance, or package type. These require circuit board layout evaluation due to package differences.

Key Parameters Determining Substitution:

Drain to Source Voltage (Vdss): Must equal or exceed 25V
FET Type: Must be P-Channel
Package Compatibility: SOT-23-3 preferred for direct substitution
Operating Temperature Range: Must support -55°C to 150°C
RoHS Compliance: ROHS3 Compliant status required
Continuous Drain Current (Id): Must meet or exceed application requirements
On-Resistance (Rds On): Lower values indicate improved performance

Parameter Comparison

Parameter	FDV302P	FDV304P	DMG302PU-13	DMG302PU-7	TSM680P06CP ROG
Manufacturer	onsemi	onsemi	Diodes Incorporated	Diodes Incorporated	Taiwan Semiconductor Corporation
FET Type	P-Channel	P-Channel	P-Channel	P-Channel	P-Channel
Vdss (V)	25	25	25	25	60
Id @ 25°C (mA)	120	460	170	170	18000
Rds On (Max) @ Id, Vgs (Ohm)	10 @ 200mA, 4.5V	1.1 @ 500mA, 4.5V	10 @ 200mA, 4.5V	10 @ 200mA, 4.5V	0.068 @ 6A, 10V
Power Dissipation (Max) (mW)	350	350	320	330	20000
Operating Temperature (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150
Package	SOT-23-3	SOT-23-3	SOT-23-3	SOT-23-3	TO-252 (DPAK)
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)

Engineering Selection Recommendations

FDV304P (onsemi): This part is the primary direct substitute for the FDV302P. Both devices share identical voltage ratings (25V Vdss), package form factor (SOT-23-3), operating temperature range (-55°C to 150°C), and RoHS3 compliance. The FDV304P offers superior current handling (460mA versus 120mA) and lower on-resistance (1.1 Ohm versus 10 Ohm), making it suitable for applications requiring higher current capacity. The FDV304P maintains active product status and unlimited moisture sensitivity level (MSL 1), ensuring long-term availability and simplified handling requirements. Pin-for-pin compatibility with the FDV302P eliminates circuit board redesign.

DMG302PU-13 and DMG302PU-7 (Diodes Incorporated): These Diodes Incorporated alternatives maintain the 25V voltage rating and SOT-23-3 package, with current ratings (170mA) between the FDV302P and FDV304P. Both devices are active products with ROHS3 compliance and MSL 1 rating. The DMG302PU-13 and DMG302PU-7 are functionally equivalent to each other, differing only in power dissipation specifications (320mW and 330mW respectively). These parts are suitable for direct substitution in applications where the FDV302P current rating is marginal and the FDV304P current capacity exceeds requirements. Packaging is Tape & Reel (TR) format.

TSM680P06CP ROG (Taiwan Semiconductor Corporation): This part is not recommended as a direct substitute due to significant electrical differences. The TSM680P06CP ROG operates at 60V Vdss (exceeding the 25V requirement), delivers 18A continuous current, and uses a TO-252 (DPAK) package incompatible with SOT-23-3 footprints. While the device maintains ROHS3 compliance and the required operating temperature range, its MSL 3 rating (168 hours) imposes stricter moisture handling requirements compared to MSL 1 devices. This part is suitable only for applications requiring higher voltage and current ratings with circuit board redesign.

Frequently Asked Questions (FAQ)

Q: Can the FDV304P directly replace the FDV302P without circuit board modifications?

A: Yes. The FDV304P is pin-compatible with the FDV302P, sharing the SOT-23-3 package and identical pinout. No circuit board layout changes are required. The FDV304P provides enhanced performance with higher current capacity and lower on-resistance.

Q: What is the primary difference between DMG302PU-13 and DMG302PU-7?

A: Both parts are electrically identical P-Channel MOSFETs with 25V Vdss and 170mA continuous drain current in SOT-23-3 packages. The difference lies in maximum power dissipation: DMG302PU-13 is rated at 320mW while DMG302PU-7 is rated at 330mW. Both are suitable for FDV302P substitution.

Q: Why is the TSM680P06CP ROG listed as a substitute if it has different voltage and current ratings?

A: The TSM680P06CP ROG is included as a similar substitute for applications where circuit redesign is acceptable and higher voltage (60V) and current (18A) capabilities are beneficial. It is not a direct pin-compatible replacement due to package differences (TO-252 versus SOT-23-3).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (FDV304P, DMG302PU-13, DMG302PU-7, and TSM680P06CP ROG) are ROHS3 compliant, matching the FDV302P compliance status.

Q: What does MSL 1 (Unlimited) mean compared to MSL 3 (168 Hours)?

A: MSL (Moisture Sensitivity Level) indicates moisture handling requirements. MSL 1 (Unlimited) allows indefinite storage without moisture control measures. MSL 3 (168 Hours) requires that the component be used within 168 hours of package opening or be re-baked. The FDV302P and most substitutes use MSL 1, except the TSM680P06CP ROG which uses MSL 3.

Q: Can I use the FDV302P in new designs?

A: No. The FDV302P is classified as obsolete. New designs should use active alternatives such as the FDV304P, DMG302PU-13, or DMG302PU-7 to ensure long-term component availability and supply chain continuity.

Q: Which substitute offers the closest electrical match to the FDV302P?

A: The DMG302PU-13 and DMG302PU-7 offer the closest electrical match, with identical on-resistance specifications (10 Ohm @ 200mA, 4.5V) and similar current ratings (170mA). These parts are suitable for applications where the FDV302P's 120mA rating is marginal.

Q: What is the advantage of the FDV304P over the Diodes Incorporated alternatives?

A: The FDV304P provides significantly higher current capacity (460mA versus 170mA) and lower on-resistance (1.1 Ohm versus 10 Ohm), resulting in reduced power dissipation in high-current applications. Both FDV304P and Diodes alternatives maintain the same 25V voltage rating and SOT-23-3 package.

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