MMBTH10Q-7-F Equivalent & Substitute Parts

Part Overview

The MMBTH10Q-7-F is an RF transistor manufactured by Diodes Incorporated, classified as a surface mount NPN bipolar junction transistor in the SOT-23-3 package. This device is designed for RF applications requiring moderate frequency operation up to 650MHz with a maximum power dissipation of 310mW. The part is currently in active production status with AEC-Q101 automotive qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, design optimization, or application-specific performance needs.

Substiute Parts

MMBTH10Q-7-F

Diodes IncorporatedIn Stock: 926MMBTH10Q-7-F Datasheet

Current PartRFQ

BFQ19SH6327XTSA1

Infineon TechnologiesIn Stock: 15017BFQ19SH6327XTSA1 Datasheet

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BFR380FH6327XTSA1

Infineon TechnologiesIn Stock: 15618BFR380FH6327XTSA1 Datasheet

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CMPT918 TR PBFREE

Central Semiconductor CorpIn Stock: 1489CMPT918 TR PBFREE Datasheet

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MRF428

MACOM Technology SolutionsIn Stock: 1498MRF428 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMBTH10Q-7-F is determined by the following critical parameters: transistor type (NPN), maximum collector-emitter breakdown voltage, transition frequency capability, maximum power dissipation, maximum collector current, and mounting type (surface mount). Substitute parts must maintain compatibility with these electrical specifications and physical package constraints.

The identified substitute parts fall into the following categories based on parameter alignment:

Category 1: Direct Package and Frequency Compatibility (SOT-23 Package) Parts maintaining the SOT-23-3 surface mount package with comparable frequency operation and power ratings.

Category 2: Enhanced Frequency Performance (Higher fT) Parts with significantly higher transition frequencies (5.5GHz and 14GHz) that provide superior RF performance characteristics while maintaining NPN topology and surface mount configuration.

Category 3: High-Power Chassis Mount Parts designed for higher power applications with different mounting requirements and significantly elevated voltage and current ratings.

Parameter Comparison

Engineering Selection Recommendations

CMPT918 TR PBFREE is the closest functional equivalent to the MMBTH10Q-7-F. Both devices share identical SOT-23-3 surface mount packaging, comparable maximum collector current (50mA), similar power dissipation (350mW vs 310mW), and overlapping frequency operation (600MHz vs 650MHz). Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating. This substitute is suitable for direct replacement in applications where the 15V maximum breakdown voltage is acceptable within the circuit design constraints.

BFQ19SH6327XTSA1 provides enhanced RF performance with 5.5GHz transition frequency and 1W power capability, making it suitable for higher-frequency applications. However, the different package format (PG-SOT89 vs SOT-23-3) requires PCB layout modification. The 15V maximum breakdown voltage is lower than the MMBTH10Q-7-F, requiring voltage margin verification in the target application.

BFR380FH6327XTSA1 offers the highest frequency performance at 14GHz with superior gain characteristics (9.5dB to 13.5dB). The PG-TSFP-3 package is significantly smaller than SOT-23-3, enabling compact RF designs. The 9V maximum breakdown voltage is substantially lower and requires careful circuit design review. This part is appropriate for high-frequency RF applications where voltage constraints are not limiting.

MRF428 is a high-power chassis mount device designed for power amplification applications with 55V breakdown voltage and 150W power dissipation. The 211-11 package format and chassis mount configuration are fundamentally different from the MMBTH10Q-7-F surface mount design. This part is applicable only to applications requiring significantly higher power levels and different mechanical integration.

All substitute parts maintain ROHS3 compliance, AEC-Q101 automotive qualification status (where applicable), and unlimited moisture sensitivity rating, ensuring regulatory and environmental compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can CMPT918 TR PBFREE be used as a direct replacement for MMBTH10Q-7-F?

A: CMPT918 TR PBFREE is compatible for direct replacement in applications where the 15V maximum collector-emitter breakdown voltage meets circuit requirements. Both parts share identical SOT-23-3 packaging, 50mA maximum collector current, and comparable power dissipation. Frequency operation differs slightly (600MHz vs 650MHz), which is negligible for most RF applications in this frequency range. Verify that the lower voltage rating does not compromise circuit performance.

Q: What are the package compatibility considerations for BFQ19SH6327XTSA1?

A: BFQ19SH6327XTSA1 uses the PG-SOT89 package, which differs from the SOT-23-3 package of the MMBTH10Q-7-F. The PG-SOT89 package has different pin spacing and footprint dimensions, requiring PCB layout redesign. Pin assignment must be verified against the respective datasheets before implementation.

Q: Is BFR380FH6327XTSA1 suitable for applications requiring 25V operation?

A: No. BFR380FH6327XTSA1 has a maximum collector-emitter breakdown voltage of 9V, which is significantly lower than the MMBTH10Q-7-F specification of 25V. This part is not suitable for circuits operating at or near 25V. Use only in applications where operating voltage remains below 9V.

Q: When should MRF428 be considered as a substitute?

A: MRF428 is applicable only to applications requiring substantially higher power levels (150W vs 310mW) and higher voltage operation (55V vs 25V). The chassis mount configuration and 211-11 package format are fundamentally different from surface mount designs. This part is not a direct substitute but rather an alternative for high-power RF power amplification applications.

Q: Do all substitute parts maintain the same compliance certifications as MMBTH10Q-7-F?

A: All identified substitute parts are ROHS3 compliant and have unlimited moisture sensitivity rating (MSL 1), matching the MMBTH10Q-7-F. The MMBTH10Q-7-F carries AEC-Q101 automotive qualification; verify that substitute parts meet equivalent automotive qualification requirements if the application demands automotive-grade components.

Q: What is the primary difference between CMPT918 TR PBFREE and BFQ19SH6327XTSA1 in terms of RF performance?

A: BFQ19SH6327XTSA1 operates at 5.5GHz transition frequency compared to CMPT918 TR PBFREE at 600MHz, providing approximately 9 times higher frequency capability. BFQ19SH6327XTSA1 also delivers 1W power dissipation versus 350mW for CMPT918 TR PBFREE. Select BFQ19SH6327XTSA1 for high-frequency RF applications; select CMPT918 TR PBFREE for lower-frequency applications requiring package compatibility with SOT-23-3.

Q: Are there thermal management differences between these substitute parts?

A: Maximum operating temperature is 150°C for MMBTH10Q-7-F, CMPT918 TR PBFREE, BFQ19SH6327XTSA1, and BFR380FH6327XTSA1. MRF428 does not specify maximum operating temperature. The smaller surface mount packages (SOT-23-3, PG-SOT89, PG-TSFP-3) have lower thermal mass than the chassis mount MRF428. Thermal design and heat dissipation requirements must be evaluated for each application.