ZXMN3B01FTC N-Channel MOSFET 30V 1.7A Equivalent & Substitute Parts

Part Overview

The ZXMN3B01FTC is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 30V drain-to-source voltage with 1.7A continuous drain current at 25°C. This device is packaged in SOT-23-3 surface mount configuration and is designed for general-purpose switching applications requiring compact form factors. The part is Active in product status and ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching or exceeding critical electrical parameters including drain-to-source voltage rating, continuous drain current capability, on-resistance characteristics, gate threshold voltage, and thermal performance specifications. Packaging compatibility and compliance certifications are maintained across all listed alternatives.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Current - Continuous Drain (Id) @ 25°C	1.7	A
Rds On (Max) @ Id, Vgs	150	mOhm @ 1.7A, 4.5V
Vgs(th) (Max) @ Id	700	mV @ 250µA
Gate Charge (Qg) (Max) @ Vgs	2.93	nC @ 4.5V
Input Capacitance (Ciss) (Max) @ Vds	258	pF @ 15V
Power Dissipation (Max)	625	mW
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	SOT-23-3	TO-236-3, SC-59
Vgs (Max)	±12	V

Substitute Part Grouping Explanation

Substitute parts for the ZXMN3B01FTC are classified into two categories based on electrical parameter compatibility:

Parametric Equivalent (Direct Replacement): Parts that maintain identical or equivalent electrical specifications across all critical parameters, including drain-to-source voltage, continuous drain current, on-resistance, gate threshold voltage, and thermal characteristics. These parts are pin-compatible and functionally interchangeable without circuit modification.

Manufacturer Recommended Substitute (Enhanced Performance): Parts that exceed the minimum electrical requirements of the main part while maintaining the same package footprint and voltage rating. These substitutes provide improved current handling or thermal performance and are suitable for applications where higher performance margins are beneficial.

Critical Parameters for Substitution:

Drain to Source Voltage (Vdss): Must equal or exceed 30V
Continuous Drain Current (Id): Must equal or exceed 1.7A at 25°C
On-Resistance (Rds On): Must not exceed 150mOhm at rated conditions
Gate Threshold Voltage (Vgs(th)): Must be compatible with drive circuit specifications
Package Type: Must be SOT-23-3 surface mount
Operating Temperature Range: Must support -55°C to 150°C
Compliance: Must maintain ROHS3 and REACH compliance

Parameter Comparison

Parameter	ZXMN3B01FTC (Main)	DMN3300U-7 (Recommended)	ZXMN3B01FTA (Parametric Equivalent)
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
Drain to Source Voltage (Vdss)	30V	30V	30V
Current - Continuous Drain (Id) @ 25°C	1.7A	2A	1.7A
Rds On (Max) @ Vgs	150mOhm @ 4.5V	150mOhm @ 4.5V	150mOhm @ 4.5V
Vgs(th) (Max) @ Id	700mV @ 250µA	1V @ 250µA	700mV @ 250µA
Gate Charge (Qg) (Max) @ Vgs	2.93nC @ 4.5V	Not specified	2.93nC @ 4.5V
Input Capacitance (Ciss) (Max) @ Vds	258pF @ 15V	193pF @ 10V	258pF @ 15V
Power Dissipation (Max)	625mW	700mW	625mW
Operating Temperature Range	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Package / Case	SOT-23-3	SOT-23-3	SOT-23-3
Vgs (Max)	±12V	±12V	±12V
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

ZXMN3B01FTA (Parametric Equivalent): This part is a direct parametric equivalent to the ZXMN3B01FTC, maintaining identical electrical specifications across all critical parameters. Both parts share the same base product number (ZXMN3) and are manufactured by Diodes Incorporated. The ZXMN3B01FTA is available in Cut Tape & Digi-Reel packaging with significantly higher inventory availability (36,500 units). This part is suitable for direct substitution in applications where the original part is unavailable or when alternative packaging formats are preferred. Compliance certifications (ROHS3, REACH Unaffected, MSL 1) are identical.

DMN3300U-7 (Manufacturer Recommended Substitute): This part is recommended by Diodes Incorporated as an enhanced substitute, offering improved current handling capability (2A versus 1.7A) and increased power dissipation rating (700mW versus 625mW) while maintaining the same 30V voltage rating and SOT-23-3 package footprint. The DMN3300U-7 features a higher gate threshold voltage (1V versus 700mV) and reduced input capacitance (193pF versus 258pF), which may affect gate drive timing characteristics. This part is suitable for applications requiring higher current margins or thermal headroom. Compliance certifications are maintained. Inventory availability is substantially higher (17,677 units).

Both substitute parts maintain full compliance with ROHS3 and REACH requirements, operate across the identical temperature range (-55°C to 150°C), and are classified as Active products by the manufacturer.

Frequently Asked Questions (FAQ)

Q: Can the DMN3300U-7 be used as a direct replacement for the ZXMN3B01FTC?

A: The DMN3300U-7 is electrically compatible and pin-compatible in the SOT-23-3 package. However, the higher gate threshold voltage (1V versus 700mV) may require adjustment of gate drive circuit timing. The increased current rating (2A versus 1.7A) and power dissipation (700mW versus 625mW) provide additional performance margin. Verification of gate drive voltage compatibility with your specific circuit is necessary before substitution.

Q: What is the difference between the ZXMN3B01FTA and ZXMN3B01FTC?

A: The ZXMN3B01FTA and ZXMN3B01FTC are parametric equivalents with identical electrical specifications. The primary difference is packaging format: ZXMN3B01FTC is supplied in Tape & Reel (TR) format, while ZXMN3B01FTA is available in Cut Tape (CT) & Digi-Reel format. Both parts share the same base product number (ZXMN3) and are manufactured by Diodes Incorporated.

Q: Are all three parts pin-compatible?

A: Yes. All three parts (ZXMN3B01FTC, DMN3300U-7, and ZXMN3B01FTA) are packaged in SOT-23-3 (TO-236-3, SC-59) surface mount configuration with identical pin assignments for N-Channel MOSFET devices (Gate, Drain, Source).

Q: What are the key electrical differences between the substitute parts?

A: The ZXMN3B01FTA maintains identical electrical specifications to the main part. The DMN3300U-7 differs in continuous drain current (2A versus 1.7A), power dissipation (700mW versus 625mW), gate threshold voltage (1V versus 700mV), and input capacitance (193pF versus 258pF). All three parts maintain the same 30V drain-to-source voltage rating and 150mOhm on-resistance specification.

Q: Are compliance certifications identical across all three parts?

A: Yes. All three parts are ROHS3 compliant, REACH Unaffected, and classified as MSL 1 (Unlimited moisture sensitivity). All parts are manufactured by Diodes Incorporated and maintain identical compliance status.

Q: Which part should I select for new designs?

A: Selection depends on application requirements and availability. For parametric equivalence, the ZXMN3B01FTA provides identical electrical performance with higher inventory availability. For applications requiring higher current capability or thermal margin, the DMN3300U-7 is suitable, provided gate drive circuit compatibility is confirmed.

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