- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for MMBF4118
- Part Number MMBF4118
- Manufacturer onsemi
- Pin Count 3
- Part Category Transistor
- Package Category SOT23 (3-Pin)
- Footprint Name SOT23 (3-Pin) - SOT-23 (TO-236) CASE 318-08 ISSUE AS
- Released Date May 21, 2018
- Last Modified Date Sep 19, 2024 2:45 PM UTC
- Pinout / Pin List Click Here (Member Only)
MMBF4118 Details
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Manufacturer Part Number:
MMBF4118
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Brand Name:
onsemi
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Pbfree Code:
Yes
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Rohs Code:
Yes
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Part Life Cycle Code:
Obsolete
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Part Package Code:
SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P
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Package Description:
SOT-23, 3 PIN
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Manufacturer Package Code:
318
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ECCN Code:
EAR99
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Manufacturer:
onsemi
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YTEOL:
0
MMBF4118 Frequently Asked Questions (FAQs)
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The maximum safe operating area (SOA) for the MMBF4118 is not explicitly stated in the datasheet. However, it can be estimated based on the device's thermal resistance, maximum junction temperature, and power dissipation. A general rule of thumb is to limit the device's power dissipation to 1/4 of the maximum rated power to ensure reliable operation.
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To ensure the MMBF4118 is properly biased for linear operation, the base-emitter voltage (Vbe) should be set between 0.6V to 0.8V, and the collector-emitter voltage (Vce) should be set to at least 1V to 2V above the supply voltage. Additionally, the base current should be limited to prevent overheating and ensure a stable operating point.
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For optimal thermal management, the MMBF4118 should be mounted on a heat sink or a thermally conductive PCB with a large copper area. The device should be placed near a thermal via or a heat sink to dissipate heat efficiently. A recommended PCB layout includes a solid ground plane, minimal trace lengths, and a star topology for power supply connections.
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To protect the MMBF4118 from electrostatic discharge (ESD), it is recommended to handle the device with an anti-static wrist strap or mat, and to use ESD-protected workstations and tools. Additionally, the device should be stored in an anti-static bag or tube, and the PCB should include ESD protection components such as TVS diodes or ESD protection arrays.
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In case of obsolescence, a recommended replacement for the MMBF4118 is the MMBT4118 or the 2N4118. These devices have similar electrical characteristics and can be used as drop-in replacements in most applications. However, it is recommended to verify the device's specifications and performance in the specific application before making a substitution.
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MMBF4118 Overview
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