Equivalent & Substitute Parts for MMBT4401 (EVVO Semi)

Part Overview

The MMBT4401, manufactured by EVVO Semi, is an active NPN Bipolar Junction Transistor (BJT) designed for small signal amplification and switching applications. It features a collector-emitter breakdown voltage of 40V, a maximum collector current of 600mA, and a transition frequency of 250MHz, housed in a surface-mount SOT-23 package. As applications often require parametric and packaging-compatible alternatives—whether for supply chain management, compliance, or design flexibility—identifying substitutes that satisfy all specified electrical, mechanical, and compliance parameters is necessary for continued reliable circuit performance.

Substiute Parts

MMBT4401

EVVO SemiIn Stock: 305446MMBT4401 Datasheet

Current PartRFQ

MMBT4401

HY Electronic (Cayman) LimitedIn Stock: 305463MMBT4401 Datasheet

Parametric EquivalentRFQ

MMBT4401-HF

Comchip TechnologyIn Stock: 9889MMBT4401-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Only substitutes matching the following key electrical and mechanical parameters are considered equivalent for MMBT4401 in the Transistors, Bipolar (BJT) category:

• Transistor Type (NPN)
• Collector-Emitter Breakdown Voltage (Max) (40V)
• Maximum Collector Current (600mA)
• Minimum DC Current Gain @ specified Ic and Vce (100 @ 150mA, 1V)
• Transition Frequency (250MHz)
• Power Dissipation (300mW)
• Vce Saturation (Max) (750mV @ 50mA, 500mA)
• Collector Cutoff Current (Max) (100nA)
• Operating Temperature Range (up to 150°C)
• Mounting Type (Surface Mount)
• Package Compatibility (SOT-23 formats)
• Compliance (RoHS, MSL, ECCN, HTSUS)

Parts meeting these precise attributes are included as direct parametric substitutes for MMBT4401.

Parameter Comparison

Engineering Selection Recommendations

All parts listed (MMBT4401 from HY Electronic (Cayman) Limited, MMBT4401-HF from Comchip Technology) are shown as "Active" status and comply with RoHS and MSL 1 (Unlimited) requirements. Selection between these substitutes can be solely based on product status and equivalence in compliance certifications, as all other electrical and mechanical specifications match those of the original EVVO Semi MMBT4401.

Frequently Asked Questions (FAQ)

Q: What criteria are used to determine equivalence for MMBT4401 substitutes?
A: Substitution is permitted when all provided electrical parameters (transistor type, voltage, current ratings, hFE, frequency, power, saturation voltage, cutoff current), mechanical parameters (package, mounting type), and compliance status (RoHS, MSL, ECCN, HTSUS) match the main part.

Q: Are the packages SOT-23, SOT-23-3, SC-59, and TO-236-3 compatible?
A: All substitute devices provided specify compatibility with the SOT-23 package series. Compatibility is determined strictly by the package and mounting type fields as supplied in the input.

Q: Do all substitute parts meet industry compliance standards?
A: Yes. All substitute parts listed are noted as RoHS Compliant and have Moisture Sensitivity Level (MSL) 1 (Unlimited), as required for direct interchangeability.

Q: Is there any difference in electrical performance among listed substitutes?
A: Based only on the explicit input parameters, all electrical performance characteristics (voltage, current, gain, frequency, power, saturation, cutoff current, and temperature range) are equivalent.

Q: Can these substitutes be used in the same PCB layout as the original?
A: Substitutes listed match the surface mount and SOT-23 package specifications of the main part; layout compatibility is based exclusively on this provided information.