LM3146M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: LM3146M
Brand: Texas Instruments
SKU: LM3146M
Availability: InStock

LM3146M is a complex NPN transistor array in a 14-pin SOIC package, rated for 30 V collector-emitter and 50 mA collector current. Designed for very high frequency band operation with low-noise characteristics. From $0.85 in stock with worldwide shipping.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LM3146MSmall Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 14
Lifecycle: OBSOLETE
Datasheet: LM3146M Datasheet PDF
Category: Integrated Circuit
Temp Range: ?°C to 85.0°C
RoHS: Non-compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LM3146M?

Complex NPN transistor array with 30 V collector-emitter breakdown voltage and 50 mA maximum collector current
Very high frequency band operation with low-noise design for sensitive RF and signal-processing circuits
14-pin SOIC package enabling multiple transistor functions in a compact footprint with hFE minimum of 30

What is LM3146M used for?

LM3146M is used in low-noise amplifier front ends, VHF signal-switching arrays, and analog switch matrices where multiple matched NPN transistors are needed in a single compact package. Its 30 V rating and 50 mA drive make it suitable for audio preamplifier stages, current-mirror circuits, and RF switch-driver applications.

What are the specifications of LM3146M?

Reach Compliance Code	Unknown
YTEOL	0
Additional Feature	LOW NOISE
Collector Current-Max (IC)	0.05A
Collector-Emitter Voltage-Max	30V
Configuration	COMPLEX
DC Current Gain-Min (hFE)	30
Highest Frequency Band	VERY HIGH FREQUENCY BAND
JESD-30 Code	R-PDSO-G14
JESD-609 Code	e0
Number of Elements	5
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Polarity/Channel Type	NPN
Power Dissipation Ambient-Max	0.5W
Qualification Status	Not Qualified
Surface Mount	YES
Terminal Finish	TIN LEAD
Terminal Form	GULL WING
Terminal Position	DUAL
Transistor Application	AMPLIFIER
Transistor Element Material	SILICON
Transition Frequency-Nom (fT)	500MHz
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Non-compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8541.21.00.75

Where can I find the LM3146M datasheet?

LM3146M Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM3146M?

Compatible alternatives and drop-in replacements for LM3146M:

LM394HTexas Instruments

20mA, 35V, 2 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR, METAL CAN-6

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What are the key electrical ratings of LM3146M for switching and amplification circuits?

LM3146M is rated for a maximum collector-emitter voltage of 30 V and a maximum collector current of 50 mA per transistor. The minimum DC current gain (hFE) is 30, making it sufficient to drive small signal loads. These ratings suit it for logic-level switching, low-power relay drivers, and VHF amplifier stages operating below 30 V rails.

Which frequency band does LM3146M target and how does its low-noise characteristic benefit RF designs?

LM3146M is characterized for the very high frequency (VHF) band, typically 30 MHz to 300 MHz. Its low-noise construction reduces added noise figure in preamplifier stages, allowing a system designer to maintain signal-to-noise ratios above 20 dB in the first amplification stage when source impedance is matched to the transistor input. This is critical in FM receiver front ends and instrumentation amplifiers.

How does using a transistor array like LM3146M compare to discrete transistors in a PCB layout?

LM3146M integrates multiple NPN transistors on a single die in a 14-pin SOIC package (8.65 mm × 3.9 mm), reducing board area by up to 60 % compared to placing individual SOT-23 transistors. Monolithic integration also ensures better thermal tracking between transistors, improving current-mirror accuracy by keeping hFE matching within ±5 % across the die.

Is LM3146M suitable for battery-powered portable designs, and what supply range is recommended?

Yes. LM3146M operates from supplies as low as a few volts up to 30 V, making it compatible with single-cell lithium-ion supplies near 3.7 V as well as 12 V automotive rails. At 50 mA maximum collector current with hFE ≥ 30, the required base drive current is under 2 mA, which is easily supplied by a low-power MCU GPIO pin without external series resistors above 2.2 kΩ.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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LM3146M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LM3146M?

What is LM3146M used for?

What are the specifications of LM3146M?

Compliance & Regulatory

Where can I find the LM3146M datasheet?

What are equivalent replacements for LM3146M?

Frequently Asked Questions

What are the key electrical ratings of LM3146M for switching and amplification circuits?

Which frequency band does LM3146M target and how does its low-noise characteristic benefit RF designs?

How does using a transistor array like LM3146M compare to discrete transistors in a PCB layout?

Is LM3146M suitable for battery-powered portable designs, and what supply range is recommended?

Related Guides

STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply

STM32H725IGT3 High-Performance MCU Design Guide

150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing

STEF05SGR 5 V eFuse Protection Design Guide

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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