MMBTH10-TP RF Transistor NPN Equivalent & Substitute Parts

Part Overview

The MMBTH10-TP is an RF transistor NPN manufactured by Micro Commercial Co, designed for RF applications requiring 25V collector-emitter breakdown voltage and 650MHz transition frequency. This surface mount device in SOT-23 packaging delivers 225mW maximum power dissipation with 50mA maximum collector current. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified for applications requiring equivalent or enhanced RF performance characteristics, alternative packaging configurations, or sourcing flexibility from different manufacturers while maintaining functional compatibility within specified electrical parameters.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	-
Voltage - Collector Emitter Breakdown (Max)	25V	V
Frequency - Transition	650MHz	MHz
Power - Max	225mW	mW
Current - Collector (Ic) (Max)	50mA	mA
DC Current Gain (hFE) (Min) @ Ic, Vce	60 @ 4mA, 10V	-
Operating Temperature	-55°C ~ 150°C	°C (TJ)
Mounting Type	Surface Mount	-
Package / Case	TO-236-3, SC-59, SOT-23-3	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts are grouped based on the following substitution criteria derived from the MMBTH10-TP electrical and mechanical specifications:

Primary Substitution Criteria:

Transistor Type: NPN configuration required
Voltage Rating: Collector-emitter breakdown voltage must equal or exceed 25V for direct substitution
Frequency Performance: Transition frequency of 650MHz or higher
Power Dissipation: Maximum power rating of 225mW or greater
Current Capability: Collector current (Ic) of 50mA or higher
DC Current Gain: hFE minimum of 60 or greater at specified conditions
Operating Temperature Range: -55°C to 150°C or equivalent
Mounting Type: Surface mount configuration
Package Compatibility: SOT-23-3 or equivalent footprint dimensions
Compliance: RoHS3 compliant, MSL 1 rating

Substitution Categories:

Category A - Direct Equivalents (Same Base Part Number): Parts sharing the MMBTH10 base product number with identical or superior electrical specifications and SOT-23-3 packaging. These include manufacturer variants from onsemi and Diodes Incorporated.

Category B - Enhanced Performance Substitutes: Parts exceeding MMBTH10-TP specifications in frequency, power handling, or current capability while maintaining 25V voltage rating and surface mount configuration. These provide performance headroom for demanding RF applications.

Category C - Specialized RF Substitutes: High-frequency RF transistors with lower voltage ratings (3.5V to 10V) but significantly higher transition frequencies (7GHz to 46GHz), suitable for applications where voltage requirements are less stringent and higher frequency performance is beneficial.

Category D - Dual Configuration Alternative: The HFA3134IHZ96 provides dual NPN transistor integration in a single package, applicable where space constraints or circuit topology favor integrated dual-transistor solutions.

Parameter Comparison

Part Number	Manufacturer	Transistor Type	Vce Breakdown (Max)	Frequency (Transition)	Power (Max)	Ic (Max)	hFE (Min)	Package	Status
MMBTH10-TP	Micro Commercial Co	NPN	25V	650MHz	225mW	50mA	60 @ 4mA, 10V	SOT-23-3	Active
MMBTH10-4LT1G	onsemi	NPN	25V	800MHz	225mW	-	120 @ 4mA, 10V	SOT-23-3	Active
MMBTH10-7-F	Diodes Incorporated	NPN	25V	650MHz	300mW	50mA	60 @ 4mA, 10V	SOT-23-3	Active
MMBTH10LT1G	onsemi	NPN	25V	650MHz	225mW	-	60 @ 4mA, 10V	SOT-23-3	Active
SMMBTH10-4LT3G	onsemi	NPN	25V	800MHz	225mW	-	120 @ 4mA, 10V	SOT-23-3	Active
2SC5488A-TL-H	onsemi	NPN	10V	7GHz	100mW	70mA	90 @ 20mA, 5V	3-SSFP	Active
BFP640ESDH6327XTSA1	Infineon Technologies	NPN	4.7V	46GHz	200mW	50mA	110 @ 30mA, 3V	SOT-343	Active
BFQ790H6327XTSA1	Infineon Technologies	NPN	6.1V	1.85GHz	1.5W	300mA	60 @ 250mA, 5V	SOT-89	Obsolete
HFA3134IHZ96	Intersil	2 NPN (Dual)	9V	8.5GHz	-	26mA	48 @ 10mA, 2V	SOT-23-6	Active
NSVF4009SG4T1G	onsemi	NPN	3.5V	25GHz	120mW	40mA	50 @ 5mA, 1V	SC-82FL/MCPH4	Active

Engineering Selection Recommendations

Direct Substitution (Same Electrical Class):

The MMBTH10-4LT1G, MMBTH10-7-F, MMBTH10LT1G, and SMMBTH10-4LT3G are direct substitutes for the MMBTH10-TP within the same electrical classification. All maintain 25V collector-emitter breakdown voltage, surface mount SOT-23-3 packaging, and RoHS3 compliance. Selection among these variants depends on specific frequency and power requirements:

MMBTH10-4LT1G and SMMBTH10-4LT3G provide enhanced frequency performance at 800MHz with doubled DC current gain (hFE 120), suitable for higher-frequency RF applications within the 25V class.
MMBTH10-7-F offers increased power dissipation (300mW versus 225mW) while maintaining identical frequency and gain characteristics, applicable to higher-power RF circuits.
MMBTH10LT1G provides exact electrical equivalence to MMBTH10-TP with identical specifications and packaging.

All four parts are in active production status with unlimited moisture sensitivity level (MSL 1) and RoHS3 compliance, ensuring long-term availability and regulatory conformance.

Enhanced Performance Substitutes:

The 2SC5488A-TL-H (onsemi) delivers significantly higher transition frequency (7GHz) and collector current capability (70mA) but operates at reduced voltage rating (10V). This substitute is applicable where circuit voltage requirements are 10V or lower and higher-frequency RF performance is required. The part is in active production with RoHS3 compliance.

High-Frequency Specialized Substitutes:

The BFP640ESDH6327XTSA1 (Infineon Technologies) and NSVF4009SG4T1G (onsemi) are ultra-high-frequency RF transistors with transition frequencies of 46GHz and 25GHz respectively. These parts operate at significantly lower voltage ratings (4.7V and 3.5V) and are suitable only for applications where voltage requirements are substantially reduced and extreme frequency performance is essential. Both parts are in active production with RoHS3 compliance. The NSVF4009SG4T1G includes AEC-Q101 automotive qualification.

Obsolete Part Consideration:

The BFQ790H6327XTSA1 (Infineon Technologies) is listed as obsolete and should not be selected for new designs despite superior power handling (1.5W) and current capability (300mA). Obsolete status indicates discontinued production and potential supply chain unavailability.

Dual Transistor Configuration:

The HFA3134IHZ96 (Intersil) provides dual NPN transistor integration in a single SOT-23-6 package. This part is applicable only where circuit topology specifically requires dual-transistor integration and where the reduced individual transistor specifications (9V voltage rating, 26mA maximum collector current) are acceptable. The part is in active production with RoHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can MMBTH10-4LT1G be used as a direct replacement for MMBTH10-TP?

A: Yes. The MMBTH10-4LT1G maintains identical 25V collector-emitter breakdown voltage, SOT-23-3 packaging, and RoHS3 compliance. The primary difference is enhanced frequency performance (800MHz versus 650MHz) and doubled DC current gain (hFE 120 versus 60). These enhancements provide performance headroom without introducing incompatibility. Both parts are in active production status.

Q: What is the key difference between MMBTH10-7-F and MMBTH10-TP?

A: The MMBTH10-7-F (Diodes Incorporated) provides increased maximum power dissipation of 300mW compared to 225mW in the MMBTH10-TP. All other electrical parameters including voltage rating (25V), frequency (650MHz), current capability (50mA), and DC current gain (hFE 60) are identical. The SOT-23-3 package and operating temperature range (-55°C to 150°C) are equivalent. This substitute is suitable for applications requiring higher power handling within the same electrical class.

Q: Can the 2SC5488A-TL-H replace MMBTH10-TP in all applications?

A: No. The 2SC5488A-TL-H operates at 10V maximum collector-emitter breakdown voltage, which is lower than the MMBTH10-TP rating of 25V. This substitute is applicable only in circuits designed for 10V operation. The 2SC5488A-TL-H provides superior frequency performance (7GHz) and higher collector current (70mA), making it suitable for higher-frequency RF applications within the 10V voltage class. Package configuration differs (3-SSFP versus SOT-23-3), requiring PCB layout modification.

Q: Is the BFP640ESDH6327XTSA1 suitable for direct substitution?

A: No. The BFP640ESDH6327XTSA1 is a specialized ultra-high-frequency RF transistor with 46GHz transition frequency but operates at only 4.7V maximum collector-emitter breakdown voltage. This part is applicable only in applications where voltage requirements are substantially reduced (4.7V or lower) and extreme frequency performance is required. The SOT-343 package differs from the MMBTH10-TP SOT-23-3 package, requiring PCB redesign. This substitute is not suitable for general-purpose replacement.

Q: What is the significance of the NSVF4009SG4T1G automotive qualification?

A: The NSVF4009SG4T1G includes AEC-Q101 automotive qualification, indicating compliance with automotive industry reliability and quality standards. This qualification is relevant only for applications requiring automotive-grade components. The part operates at 3.5V maximum voltage and 25GHz transition frequency, making it suitable for automotive RF applications where voltage requirements are substantially reduced and high-frequency performance is essential.

Q: Why is BFQ790H6327XTSA1 not recommended despite superior specifications?

A: The BFQ790H6327XTSA1 is listed as obsolete, indicating discontinued production by Infineon Technologies. Obsolete status creates supply chain risk, potential unavailability for future orders, and lack of manufacturer support. New designs should not incorporate obsolete components. The active production alternatives provide equivalent or superior performance with assured long-term availability.

Q: Can MMBTH10LT1G be used in place of MMBTH10-TP?

A: Yes. The MMBTH10LT1G (onsemi) provides exact electrical equivalence to MMBTH10-TP with identical specifications: 25V voltage rating, 650MHz frequency, 225mW power, 50mA collector current, and hFE 60 at specified conditions. The SOT-23-3 package, operating temperature range (-55°C to 150°C), and RoHS3 compliance are identical. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel), which affects supply chain and handling but not electrical performance.

Q: What packaging considerations apply when substituting with 2SC5488A-TL-H?

A: The 2SC5488A-TL-H uses 3-SSFP package configuration, which differs from the MMBTH10-TP SOT-23-3 package. The 3-SSFP package has different pin spacing, lead configuration, and footprint dimensions. PCB layout modification is required, including new land pattern design, trace routing, and potential circuit board redesign. Mechanical compatibility cannot be assumed; detailed package drawings must be consulted before implementation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant, matching the MMBTH10-TP compliance status. All parts also maintain MSL 1 (unlimited moisture sensitivity level) rating, ensuring equivalent handling and storage requirements. REACH status is unaffected for all parts, indicating no regulatory restrictions on use within specified applications.

Q: What is the significance of DC current gain (hFE) differences among substitutes?

A: DC current gain (hFE) determines the amplification factor of the transistor at specified collector current and collector-emitter voltage conditions. The MMBTH10-TP specifies hFE minimum of 60 at 4mA collector current and 10V collector-emitter voltage. Substitutes with higher hFE values (such as MMBTH10-4LT1G at hFE 120) provide greater amplification and may require circuit bias adjustment. Substitutes with lower hFE values require verification that circuit design accommodates reduced gain. hFE differences do not prevent substitution but may require circuit parameter recalculation.

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