MS8050-H-TP Equivalent & Substitute Parts

Part Overview

The MS8050-H-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for interface applications in surface mount configurations. This transistor operates at a maximum collector current of 800 mA, collector-emitter breakdown voltage of 40 V, and maximum power dissipation of 200 mW. The device is housed in a SOT-23 package and features a transition frequency of 150 MHz, making it suitable for general-purpose switching and amplification circuits operating across the temperature range of -55°C to 150°C.

The MS8050-H-TP maintains Active product status with 878 pieces currently in stock. Equivalent and substitute parts are identified based on matching or exceeding critical electrical parameters while maintaining compatible mechanical packaging and operating temperature ranges.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	800	mA
Voltage - Collector Emitter Breakdown (Max)	40	V
Power - Max	200	mW
Frequency - Transition	150	MHz
Operating Temperature Range	-55 to 150	°C
Package / Case	SOT-23-3 (TO-236-3, SC-59)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the MS8050-H-TP is determined by the following critical electrical and mechanical parameters:

Mandatory Matching Criteria:

Transistor Type: NPN
Package / Case: SOT-23-3 (TO-236-3, SC-59) surface mount configuration
Operating Temperature Range: Minimum -55°C to maximum 150°C
Voltage - Collector Emitter Breakdown: Equal to or greater than 40 V
Current - Collector (Ic) Max: Equal to or greater than 800 mA

Acceptable Variation Parameters:

Power - Max: May be equal to or greater than 200 mW
Frequency - Transition: May be equal to or greater than 150 MHz
DC Current Gain (hFE): Variations acceptable within device specifications
Vce Saturation: Variations acceptable within device specifications

Substitute parts are grouped into two categories based on collector current capability:

Category A - Full Current Rating (800 mA): Parts meeting or exceeding the full 800 mA collector current specification of the MS8050-H-TP.

Category B - Reduced Current Rating (600 mA): Parts with 600 mA maximum collector current, suitable for applications not requiring the full 800 mA capability.

Parameter Comparison

Part Number	Manufacturer	Ic Max (mA)	Vce Breakdown (V)	Power Max (mW)	Frequency (MHz)	Temp Range (°C)	Package
MS8050-H-TP	Micro Commercial Co	800	40	200	150	-55 to 150	SOT-23
BCW65ALT1G	onsemi	800	32	225	100	-55 to 150	SOT-23-3
BSR14	onsemi	800	40	350	300	-55 to 150	SOT-23-3
CMPT4401 TR PBFREE	Central Semiconductor Corp	600	40	350	250	-65 to 150	SOT-23
MMBT2222A-G	Comchip Technology	600	40	300	300	-55 to 150	SOT-23-3
MMBT2222ALT1G	onsemi	600	40	225	300	-55 to 150	SOT-23-3
MMBT2222ALT3G	onsemi	600	40	300	300	-55 to 150	SOT-23-3
MMBT2222LT1G	onsemi	600	30	300	250	-55 to 150	SOT-23-3
MMBT4401-7-F	Diodes Incorporated	600	40	310	250	-55 to 150	SOT-23-3
MMBT4401LT3G	onsemi	600	40	300	250	-55 to 150	SOT-23-3
PMBT2222A,235	Nexperia USA Inc.	600	40	250	300	-55 to 150	SOT-23-3

Engineering Selection Recommendations

Full Current Rating Substitutes (800 mA Category):

The BSR14 manufactured by onsemi is the primary direct substitute for the MS8050-H-TP. Both devices share identical collector current (800 mA) and collector-emitter breakdown voltage (40 V) specifications. The BSR14 exceeds the MS8050-H-TP in power dissipation (350 mW versus 200 mW) and transition frequency (300 MHz versus 150 MHz). The BSR14 is RoHS3 compliant with MSL 1 rating and maintains the same operating temperature range. This part is available in high volume (44,300 pieces in stock).

The BCW65ALT1G from onsemi maintains the 800 mA collector current rating but operates at a reduced collector-emitter breakdown voltage of 32 V. This part is suitable only for applications where the 40 V breakdown voltage is not required. The BCW65ALT1G is RoHS3 compliant with MSL 1 rating.

Reduced Current Rating Substitutes (600 mA Category):

Multiple 600 mA alternatives are available for applications not requiring the full 800 mA collector current capability:

MMBT4401LT3G (onsemi) provides 600 mA collector current with 40 V breakdown voltage, 300 mW power dissipation, and 250 MHz transition frequency. This part is RoHS3 compliant with MSL 1 rating and available in high volume (889,091 pieces in stock).

MMBT2222ALT1G (onsemi) is AEC-Q101 automotive qualified and provides 600 mA collector current with 40 V breakdown voltage, 225 mW power dissipation, and 300 MHz transition frequency. This part is RoHS3 compliant with MSL 1 rating and available in high volume (725,400 pieces in stock).

MMBT2222ALT3G (onsemi) provides 600 mA collector current with 40 V breakdown voltage, 300 mW power dissipation, and 300 MHz transition frequency. This part is RoHS3 compliant with MSL 1 rating.

MMBT4401-7-F (Diodes Incorporated) is AEC-Q101 automotive qualified and provides 600 mA collector current with 40 V breakdown voltage, 310 mW power dissipation, and 250 MHz transition frequency. This part is RoHS3 compliant with MSL 1 rating and available in high volume (455,300 pieces in stock).

PMBT2222A,235 (Nexperia USA Inc.) is AEC-Q101 automotive qualified and provides 600 mA collector current with 40 V breakdown voltage, 250 mW power dissipation, and 300 MHz transition frequency. This part is RoHS3 compliant with MSL 1 rating.

CMPT4401 TR PBFREE (Central Semiconductor Corp) provides 600 mA collector current with 40 V breakdown voltage, 350 mW power dissipation, and 250 MHz transition frequency. This part is RoHS3 compliant with MSL 1 rating and operates across an extended temperature range of -65°C to 150°C.

MMBT2222A-G (Comchip Technology) provides 600 mA collector current with 40 V breakdown voltage, 300 mW power dissipation, and 300 MHz transition frequency. This part is RoHS3 compliant with MSL 1 rating.

MMBT2222LT1G (onsemi) operates at a reduced collector-emitter breakdown voltage of 30 V and is suitable only for applications where the 40 V breakdown voltage is not required. This part provides 600 mA collector current, 300 mW power dissipation, and 250 MHz transition frequency. This part is RoHS3 compliant with MSL 1 rating.

All substitute parts maintain surface mount SOT-23-3 packaging and the -55°C to 150°C operating temperature range. All listed substitutes are Active product status with REACH Unaffected and EAR99 ECCN classification.

Frequently Asked Questions (FAQ)

Q: Can the BCW65ALT1G replace the MS8050-H-TP in all applications?

A: The BCW65ALT1G maintains the 800 mA collector current rating but operates at 32 V collector-emitter breakdown voltage compared to the MS8050-H-TP specification of 40 V. Substitution is valid only for applications where the circuit voltage does not exceed 32 V. For circuits operating above 32 V, the BSR14 is the appropriate full-current substitute.

Q: What is the difference between the 800 mA and 600 mA substitute categories?

A: The MS8050-H-TP is rated for 800 mA maximum collector current. The BSR14 and BCW65ALT1G maintain this 800 mA rating. All other listed substitutes are rated for 600 mA maximum collector current. Selection between categories depends on the application's current requirements. Applications requiring collector currents above 600 mA must use BSR14 or BCW65ALT1G.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts are RoHS3 compliant. The MS8050-H-TP RoHS status is not specified in the provided data. All substitutes carry MSL 1 (Unlimited) moisture sensitivity level rating.

Q: What is the significance of AEC-Q101 qualification on certain substitutes?

A: AEC-Q101 qualification indicates automotive-grade reliability testing. Parts with this qualification (MMBT2222ALT1G, MMBT4401-7-F, PMBT2222A,235) are suitable for automotive applications. Non-qualified parts are suitable for general industrial and consumer applications.

Q: Can MMBT2222LT1G be used as a direct substitute?

A: The MMBT2222LT1G operates at 30 V collector-emitter breakdown voltage, which is below the MS8050-H-TP specification of 40 V. This part is suitable only for applications where circuit voltage does not exceed 30 V. For applications requiring the full 40 V rating, use BSR14, MMBT2222ALT1G, MMBT2222ALT3G, MMBT4401-7-F, MMBT4401LT3G, MMBT2222A-G, CMPT4401 TR PBFREE, or PMBT2222A,235.

Q: What packaging considerations apply to these substitutes?

A: All listed substitutes use SOT-23-3 (TO-236-3, SC-59) surface mount packaging, identical to the MS8050-H-TP. Mechanical compatibility is maintained across all substitutes. Supplier device package designations may vary (SOT-23, SOT-23-3, TO-236AB) but all refer to the same physical form factor.

Q: Which substitute offers the best high-frequency performance?

A: Multiple substitutes offer 300 MHz transition frequency, exceeding the MS8050-H-TP specification of 150 MHz. These include BSR14, MMBT2222A-G, MMBT2222ALT1G, MMBT2222ALT3G, and PMBT2222A,235. Selection among these should be based on collector current requirements and other application-specific parameters.

Q: Is the extended temperature range of CMPT4401 TR PBFREE significant?

A: The CMPT4401 TR PBFREE operates across -65°C to 150°C, compared to the standard -55°C to 150°C range of the MS8050-H-TP and most other substitutes. This extended low-temperature capability is relevant only for applications requiring operation below -55°C.

Q: What is the inventory status of these substitutes?

A: All listed substitutes are available in stock. MMBT4401LT3G offers the highest inventory (889,091 pieces), followed by MMBT2222ALT1G (725,400 pieces) and MMBT4401-7-F (455,300 pieces). Lower-volume alternatives include CMPT4401 TR PBFREE (24,837 pieces), PMBT2222A,235 (62,621 pieces), and MMBT2222ALT3G (6,801 pieces).

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