MMBT5401Q-7-F Equivalent & Substitute Parts

Part Overview

The MMBT5401Q-7-F is an active PNP bipolar junction transistor manufactured by Diodes Incorporated, designed for surface mount applications in the SOT-23-3 package. This component operates at collector voltages up to 150V with a maximum collector current of 600mA and is qualified to AEC-Q101 automotive standards. The part is ROHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the PNP transistor category. Alternative sources provide equivalent performance parameters for applications requiring component availability or supply chain flexibility.

Substiute Parts

MMBT5401Q-7-F

Diodes IncorporatedIn Stock: 12509MMBT5401Q-7-F Datasheet

Current PartRFQ

CMPT5401 TR PBFREE

Central Semiconductor CorpIn Stock: 34610CMPT5401 TR PBFREE Datasheet

Parametric EquivalentRFQ

MMBT5401

HY Electronic (Cayman) LimitedIn Stock: 1805158MMBT5401 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMBT5401Q-7-F are identified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Transistor Type: PNP configuration
• Collector Current Rating: 600 mA maximum
• Collector-Emitter Breakdown Voltage: 150 V maximum
• Saturation Voltage: 500 mV @ specified base and collector currents
• Collector Cutoff Current: 50 nA maximum
• DC Current Gain (hFE): Minimum 60 @ 10 mA, 5V
• Power Dissipation: 350 mW maximum
• Transition Frequency: 300 MHz minimum
• Package: SOT-23-3 surface mount configuration
• Moisture Sensitivity: Level 1 (Unlimited)

Parts meeting these parameters are classified as parametric equivalents and are suitable for direct replacement in applications where the MMBT5401Q-7-F is specified.

Parameter Comparison

Engineering Selection Recommendations

CMPT5401 TR PBFREE (Central Semiconductor Corp): This part is a full parametric equivalent to the MMBT5401Q-7-F. Both components are PNP transistors with identical electrical specifications including 600 mA collector current, 150 V breakdown voltage, 300 MHz transition frequency, and 350 mW power rating. Both are ROHS3 compliant with Level 1 moisture sensitivity. The CMPT5401 operates across an extended temperature range (-65°C to 150°C) compared to the main part (-55°C to 150°C). This part is suitable for direct substitution in all applications where the MMBT5401Q-7-F is specified.

MMBT5401 (HY Electronic): This part exhibits significant electrical differences from the main part and is not recommended as a direct substitute. The HY Electronic MMBT5401 is an NPN transistor, whereas the MMBT5401Q-7-F is PNP. Additionally, this part has reduced power dissipation (300 mW versus 350 mW), lower transition frequency (100 MHz versus 300 MHz), higher collector cutoff current (100 nA versus 50 nA), and incomplete operating temperature specification. The REACH status is listed as affected, introducing regulatory compliance considerations. Circuit topology changes would be required to accommodate the NPN configuration.

Frequently Asked Questions (FAQ)

Q: Can the CMPT5401 TR PBFREE be used as a direct replacement for the MMBT5401Q-7-F?

A: Yes. The CMPT5401 TR PBFREE meets all electrical and mechanical parameters of the MMBT5401Q-7-F. Both are PNP transistors with 600 mA collector current, 150 V breakdown voltage, 300 MHz transition frequency, and 350 mW power dissipation. Both are surface mount SOT-23-3 packages with ROHS3 compliance and Level 1 moisture sensitivity. The CMPT5401 operates across a wider temperature range, making it suitable for direct substitution.

Q: Why is the MMBT5401 from HY Electronic not recommended as a substitute?

A: The HY Electronic MMBT5401 differs in transistor polarity (NPN versus PNP), power rating (300 mW versus 350 mW), transition frequency (100 MHz versus 300 MHz), and collector cutoff current (100 nA versus 50 nA). These differences require circuit redesign and are not compatible with applications designed for the PNP MMBT5401Q-7-F.

Q: Are all substitute parts automotive qualified?

A: The MMBT5401Q-7-F is qualified to AEC-Q101 automotive standards. The CMPT5401 TR PBFREE does not list automotive qualification in the provided specifications. The HY Electronic MMBT5401 also does not list automotive qualification. Applications requiring automotive-grade components should verify qualification status with the manufacturer.

Q: What is the significance of the extended temperature range in the CMPT5401?

A: The CMPT5401 TR PBFREE operates from -65°C to 150°C, compared to the MMBT5401Q-7-F range of -55°C to 150°C. The extended lower temperature limit provides additional operational margin in applications exposed to extreme cold environments. This does not affect substitution suitability for applications within the -55°C to 150°C range.

Q: Are there packaging differences between the main part and substitutes?

A: The MMBT5401Q-7-F and CMPT5401 TR PBFREE are both specified as SOT-23-3 packages. The HY Electronic MMBT5401 is specified as SOT-23 without the "-3" designation, indicating potential package variation. Mechanical compatibility should be verified for the HY Electronic part before implementation.

Q: What is the REACH compliance status of each part?

A: The MMBT5401Q-7-F and CMPT5401 TR PBFREE are both listed as REACH Unaffected. The HY Electronic MMBT5401 is listed as REACH Affected, indicating potential regulatory compliance considerations for applications subject to REACH requirements.