Equivalent & Substitute Parts Reference: MMBT1815-H-TP

Part Overview

The MMBT1815-H-TP is an NPN Bipolar Junction Transistor (BJT) manufactured by Micro Commercial Co, categorized under Transistors, Bipolar (BJT) and supplied in bulk packaging. This active part is designed for surface-mount applications, with a maximum collector current of 150 mA, a collector-emitter breakdown voltage of 50 V, and a transition frequency of 80 MHz. It is housed in a TO-236-3, SC-59, SOT-23-3 package. Identifying substitute and equivalent models is required in engineering scenarios for inventory management, design continuity, and production support when procurement constraints or multi-sourcing requirements occur.

Substiute Parts

MMBT1815-H-TP

Micro Commercial CoIn Stock: 1115MMBT1815-H-TP Datasheet

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2SC2412KT146R

Rohm SemiconductorIn Stock: 10003682SC2412KT146R Datasheet

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2SC2712-BL,LF

Toshiba Semiconductor and StorageIn Stock: 85002SC2712-BL,LF Datasheet

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NXP3875GR

Nexperia USA Inc.In Stock: 3723NXP3875GR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute and equivalent transistors must meet the following strictly defined parameters:

• Transistor Type: NPN
• Voltage - Collector Emitter Breakdown (Max): 50 V
• Current - Collector (Ic) (Max): 150 mA
• Vce Saturation (Max): match or provide comparative values
• Current - Collector Cutoff (Max) (ICBO): 100 nA
• DC Current Gain (hFE) (Min): indicate rated test conditions
• Power - Max: match closely or indicate comparative values
• Frequency - Transition: indicate specified value
• Operating Temperature: same or broader rating
• Mounting Type, Package / Case, Supplier Device Package: must provide footprint compatibility for surface mount designs

Equivalent models are grouped under these parameters with all values derived directly from manufacturer's datasheets and specification listings.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are fully active and available in inventory. Compliance designations such as ROHS3, REACH Unaffected, and Automotive/AEC-Q101 are provided where available. When selecting equivalents for the MMBT1815-H-TP, reference only indicated product status and compliance/certification designations. Choose suitable models based on directly matching application requirements and documented compliance criteria for specific industry or environmental requisites.

Frequently Asked Questions (FAQ)

Q1: What determines whether a BJT transistor can substitute the MMBT1815-H-TP?
A1: Substitute status is strictly determined by matching transistor type (NPN), collector-emitter voltage rating, maximum collector current, cutoff current, DC current gain, transition frequency, package compatibility, power rating, and compliance status.

Q2: Are there differences in package types among the substitute transistors?
A2: All listed substitutes are surface mount types with compatible packages, including TO-236-3, SC-59, SOT-23-3, SOT-23, SMT3, S-Mini, and TO-236AB. Mechanical compatibility must be verified based on the specific supplier device package in use.

Q3: Can substitutes have differing transition frequencies or DC current gain?
A3: Only parameters as documented are compared. Substitutes may show higher or lower transition frequency or hFE within the range specified for the given test conditions. Verify these parameter values against exact system requirements.

Q4: What compliance statuses are relevant in substitute selection?
A4: Substitute selection may require a match or upgrade in compliance status such as ROHS3, REACH Unaffected, or automotive qualification (AEC-Q101) depending on application needs.

Q5: Why is package compatibility critical for surface mount BJTs?
A5: Surface mount package compatibility ensures mechanical fit and automated assembly processes are maintained when substituting or replacing transistors in board layouts. Confirm the exact package or footprint match using the provided supplier device package designation.