Equivalent & Substitute Parts for MMS9018-L-TP (Micro Commercial Co)

Part Overview

MMS9018-L-TP is an NPN Bipolar Junction Transistor (BJT) designed for interface applications, featuring a maximum collector-emitter breakdown voltage of 18 V, collector current of 50 mA, and transition frequency of 600 MHz. It is provided in a surface-mount SOT-23 package and is categorized as active with availability in bulk. When sourcing or maintaining inventories, identifying substitute parts that match key electrical and mechanical characteristics is required to ensure product continuity and compatibility.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Packaging	Description	Detailed Description	Transistor Type	Voltage - Collector Emitter Breakdown (Max)	Current - Collector (Ic) (Max)	Power - Max	Frequency - Transition	DC Current Gain (hFE) (Min) @ Ic, Vce	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	Product Status	REACH Status	ECCN	HTSUS
MMS9018-L-TP	Micro Commercial Co	Transistors, Bipolar (BJT)	Bulk	Interface	Bipolar (BJT) Transistor NPN 18 V 50 mA 600MHz 200 mW Surface Mount SOT-23	NPN	18 V	50 mA	200 mW	600 MHz	70 @ 1mA, 5V	-55°C ~ 150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	Active	REACH Unaffected	EAR99	8541.21.0075

Substitute Part Grouping Explanation

Substitute parts are selected only when their core parameters match the MMS9018-L-TP within the defined limits for the category "Transistors, Bipolar (BJT)." The following parameters are used for substitute determination: transistor type (NPN), maximum voltage for collector-emitter breakdown, maximum collector current (Ic), transition frequency, power dissipation, DC current gain (hFE), operating temperature, mounting type, and package compatibility. Substitutes must also exhibit the same regulatory and compliance status.

Parameter Comparison

Parameter	MMS9018-L-TP	MMBT918LT1G
Manufacturer	Micro Commercial Co	onsemi
Category	Transistors, Bipolar (BJT)	Transistors, Bipolar (BJT)
Transistor Type	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	18 V	15 V
Current - Collector (Ic) (Max)	50 mA	50 mA
Power - Max	200 mW	225 mW
Frequency - Transition	600 MHz	600 MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	70 @ 1mA, 5V	20 @ 3mA, 1V
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SOT-23	SOT-23-3 (TO-236)
Product Status	Active	Active
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.21.0075	8541.21.0075

Engineering Selection Recommendations

MMS9018-L-TP and MMBT918LT1G are both listed as active products with REACH Unaffected status and ECCN EAR99 designation. There are no restrictions or compliance differences based on the provided parameters that affect engineering selection for substitute purposes within this product category.

Frequently Asked Questions (FAQ)

Q: What are the main criteria for selecting a substitution for MMS9018-L-TP?
A: Substitute selection is based on matching transistor type, maximum collector-emitter breakdown voltage, maximum collector current, transition frequency, power dissipation, DC current gain, operating temperature, mounting type, and package compatibility.

Q: Is package compatibility required for BJT transistor substitution?
A: Yes. Substitute parts must comply with the package types listed (TO-236-3, SC-59, SOT-23-3) and supplier device package to maintain mechanical interchangeability.

Q: How does DC current gain impact substitution?
A: DC current gain (hFE) must be referenced at defined test conditions for compatibility. It is considered in the comparison table and selection criteria.

Q: Are compliance and status parameters included in the substitution logic?
A: Yes. Compliance parameters such as REACH status and ECCN are included to ensure regulatory consistency.

Q: Can substitute parts be selected with different maximum ratings if unused in the application?
A: Substitution is strictly based on the allowed parameters for this product category as provided. All listed parameter requirements must be met.

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