MMS8050-L-TP Equivalent & Substitute Parts

Part Overview

The MMS8050-L-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This surface mount device operates at 25 V collector-emitter breakdown voltage with a maximum collector current of 500 mA and 300 mW power dissipation. The part is currently active in production and ROHS3 compliant.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	25	V
Current - Collector (Ic) (Max)	500	mA
Power - Max	300	mW
Frequency - Transition	150	MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 50mA, 1V	—
Vce Saturation (Max) @ Ib, Ic	600mV @ 50mA, 500mA	—
Current - Collector Cutoff (Max)	100	nA
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the MMS8050-L-TP are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical or superior electrical specifications across all critical parameters: collector-emitter breakdown voltage (25 V), maximum collector current (500 mA), power dissipation (300 mW), transition frequency (150 MHz), DC current gain (120 @ 50mA, 1V), and saturation voltage (600mV @ 50mA, 500mA). These parts are functionally interchangeable within the same circuit design without modification.

Similar Parts share the same transistor type (NPN), package form factor (SOT-23), and mounting technology (surface mount), but exhibit variations in one or more electrical parameters. These parts may require circuit evaluation to confirm suitability for specific applications.

The following parameters determine substitution eligibility:

Transistor Type: NPN
Package / Case: TO-236-3, SC-59, SOT-23-3
Mounting Type: Surface Mount
Voltage - Collector Emitter Breakdown (Max): ≥ 25 V
Current - Collector (Ic) (Max): ≥ 500 mA
Power - Max: ≥ 300 mW
Frequency - Transition: ≥ 150 MHz

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vce Breakdown (V)	Ic Max (mA)	Power Max (mW)	fT (MHz)	hFE Min @ Ic, Vce	Vce Sat (mV) @ Ib, Ic	Package	Substitution Category
MMS8050-L-TP	Micro Commercial Co	25	500	300	150	120 @ 50mA, 1V	600 @ 50mA, 500mA	SOT-23	Main Part
MMS8050-H-TP	Micro Commercial Co	25	500	300	150	120 @ 50mA, 1V	600 @ 50mA, 500mA	SOT-23	Parametric Equivalent
S8050	EVVO Semi	25	500	300	150	120 @ 50mA, 1V	600 @ 50mA, 500mA	SOT-23	Parametric Equivalent
S9013	EVVO Semi	25	500	300	150	120 @ 50mA, 1V	600 @ 50mA, 500mA	SOT-23	Parametric Equivalent
BC818-40LT1G	onsemi	25	500	225	100	250 @ 100mA, 1V	700 @ 50mA, 500mA	SOT-23-3	Similar Part
2SD2114KT146W	Rohm Semiconductor	20	500	200	350	1200 @ 10mA, 3V	400 @ 20mA, 500mA	SMT3	Similar Part
2SD2114KT146V	Rohm Semiconductor	20	500	200	350	820 @ 10mA, 3V	400 @ 20mA, 500mA	SMT3	Similar Part

Engineering Selection Recommendations

Parametric Equivalents (MMS8050-H-TP, S8050, S9013) are direct functional replacements for the MMS8050-L-TP. All three parts maintain identical electrical specifications and are ROHS3 compliant. Selection among these equivalents is determined by packaging format availability (Tape & Reel versus Cut Tape & Digi-Reel) and inventory requirements. MMS8050-H-TP differs only in packaging format (Cut Tape & Digi-Reel versus Tape & Reel). S8050 and S9013 are manufactured by EVVO Semi and provide equivalent performance with different packaging options.

Similar Parts (BC818-40LT1G, 2SD2114KT146W, 2SD2114KT146V) share the same package form factor and mounting technology but exhibit reduced power dissipation, lower collector-emitter breakdown voltage (2SD2114 series), or different transition frequency characteristics. BC818-40LT1G maintains 25 V breakdown voltage but operates at 100 MHz transition frequency and 225 mW maximum power. The 2SD2114 series operates at 20 V breakdown voltage with 200 mW power dissipation and 350 MHz transition frequency. These parts are suitable for applications where the reduced electrical specifications remain within design margins.

All listed substitute parts are ROHS3 compliant and carry active product status. Selection should be based on circuit requirements, available inventory, and packaging format compatibility with assembly processes.

Frequently Asked Questions (FAQ)

Q: Can MMS8050-H-TP be used as a direct replacement for MMS8050-L-TP?

A: Yes. MMS8050-H-TP is a parametric equivalent with identical electrical specifications. The difference is packaging format: MMS8050-L-TP is supplied in Tape & Reel format, while MMS8050-H-TP is supplied in Cut Tape & Digi-Reel format. Both are surface mount SOT-23 packages suitable for automated assembly.

Q: What is the difference between parametric equivalents and similar parts?

A: Parametric equivalents (MMS8050-H-TP, S8050, S9013) maintain all electrical specifications of the MMS8050-L-TP and are functionally interchangeable without circuit modification. Similar parts (BC818-40LT1G, 2SD2114 series) share the same package and mounting type but have different electrical characteristics such as power dissipation, breakdown voltage, or transition frequency. Similar parts require circuit evaluation to confirm compatibility.

Q: Can the 2SD2114KT146W or 2SD2114KT146V replace the MMS8050-L-TP?

A: These parts share the same package form factor and mounting technology but operate at 20 V collector-emitter breakdown voltage (versus 25 V) and 200 mW power dissipation (versus 300 mW). They are suitable only if the circuit design operates within these reduced specifications. The higher transition frequency (350 MHz) and different DC current gain characteristics must also be evaluated for the specific application.

Q: Is BC818-40LT1G compatible with MMS8050-L-TP?

A: BC818-40LT1G maintains the 25 V breakdown voltage and 500 mA collector current but operates at 100 MHz transition frequency (versus 150 MHz) and 225 mW power dissipation (versus 300 mW). It is compatible in applications where these reduced specifications remain acceptable. The higher DC current gain (250 @ 100mA, 1V) and higher saturation voltage (700mV) should be evaluated against circuit requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification. All parts are also REACH unaffected and carry EAR99 export classification.

Q: What is the operating temperature range for substitute parts?

A: MMS8050-L-TP, MMS8050-H-TP, S9013, and BC818-40LT1G operate across -55°C to 150°C. S8050 operates to 150°C maximum. The 2SD2114 series operates to 150°C maximum. Verify the specific temperature range requirement for your application.

Q: Can I mix packaging formats in the same assembly?

A: Yes. All substitute parts use surface mount technology compatible with standard pick-and-place assembly equipment. Tape & Reel and Cut Tape & Digi-Reel formats are both compatible with automated feeders. Verify feeder compatibility with your assembly process specifications.

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