LM3876T Texas Instruments Audio Amplifiers (TO-220) In Stock
LM3876T is a high-fidelity 56 W audio power amplifier IC by Texas Instruments with a single channel in an 11-pin TO-220 package. Key specs: 24 V to 84 V supply range, 26 dB gain, 0.1% THD, 20 kHz bandwidth. From $6.00, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- TO-220
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- LM3876T Datasheet PDF
- Category
- Audio Amplifiers
- Temp Range
- -20.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3876T?
- 56 W output power from a single-channel class AB audio amplifier IC delivers room-filling sound from a minimal external component design
- 0.1% total harmonic distortion (THD) across a 20 kHz bandwidth ensures audiophile-grade sound quality in DIY and OEM speaker amplifier builds
- Wide 24 V to 84 V supply range accommodates single-rail and split-rail power supplies from 12 V automotive to 84 V high-power home audio configurations
What is LM3876T used for?
LM3876T is a popular choice for DIY high-fidelity stereo amplifiers, powered bookshelf speakers, and subwoofer amplifier modules where clean 56 W output with low distortion is required. Its 26 dB gain and 20 kHz audio bandwidth cover the full audible spectrum, making it suitable for both full-range and woofer channel amplification. The TO-220 package with an exposed metal tab mounts directly to standard heatsinks, simplifying thermal management in compact chassis designs.
What are the specifications of LM3876T?
| Pbfree Code | No |
| YTEOL | 0 |
| Bandwidth-Nom | 20kHz |
| Consumer IC Type | AUDIO AMPLIFIER |
| Gain | 26dB |
| Harmonic Distortion | 0.1% |
| JESD-30 Code | R-PZIP-T11 |
| JESD-609 Code | e0 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Output Power-Nom | 56W |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | ZIP11,.2,.17,67TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Supply Current-Max | 70mA |
| Supply Voltage-Max (Vsup) | 42V |
| Supply Voltage-Min (Vsup) | 12V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | OTHER |
| Terminal Finish | TIN LEAD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.7mm |
| Terminal Position | ZIG-ZAG |
| Package | TO-220 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the LM3876T datasheet?
LM3876T Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3876T?
Compatible alternatives and drop-in replacements for LM3876T:
Frequently Asked Questions
What continuous output power and supply voltage range does LM3876T support in a typical stereo amplifier build?
LM3876T delivers 56 W of continuous output power per channel and operates from supply voltages between 24 V and 84 V. For a stereo amplifier using two LM3876T devices, this yields 112 W total across two channels, sufficient to drive 8-ohm bookshelf speakers to high SPL levels from a single ±35 V split-rail power supply.
How does the 0.1% THD specification of LM3876T compare to typical class AB discrete designs in home audio applications?
LM3876T achieves 0.1% total harmonic distortion (THD) across its 20 kHz audio bandwidth, which is comparable to or better than most discrete class AB amplifiers built with bipolar junction transistors at similar power levels. This low distortion figure, combined with the integrated overload and thermal protection, makes LM3876T a reliable choice for audiophile-grade home amplifiers where sound fidelity and component reliability are both priorities.
Is LM3876T RoHS-compliant and which package does it use for heatsink mounting?
LM3876T carries JESD-609 code e0, indicating it is not RoHS-compliant and contains lead in its solder finish, which must be considered for designs requiring environmental compliance. It is housed in an 11-pin TO-220 package (JESD-30 code R-PZIP-T11) with an exposed metal tab that bolts directly to a heatsink, enabling efficient heat dissipation for sustained 56 W output operation.
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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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