# Amplificador Clase D Discreto ## Description Amplificador de audio Clase D discreto alimentado con 12 VDC para parlante de 8 Ω / 0,25 W, entrada senoidal de 20 mVpp a 1 kHz, sin microcontroladores ni chips específicos de audio. ## Project Details - **Owner:** king788 - **Created:** 7/4/2026 - **Last Updated:** 7/5/2026 - **Visibility:** Public ## Key Components ### D1 — [1N5819 A0G](https://www.flux.ai/lcsc/1n5819-a0g~9k1x.md) - Role: Reverse Polarity Protection - LCSC Part Number: C483908 - Product Info Url: https://lcsc.com/product-detail/New-Arrivals_Taiwan-Semiconductor-Taiwan-Semicon-1N5819-A0G_C483908.html - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Role Details: Diodo Schottky 1N5819 DO-41 through-hole; banda/cátodo hacia +12V - Manufacturer Name: Taiwan Semiconductor(台湾半导体) - Manufacturer Part Number: 1N5819 A0G - Part Type: Schottky Barrier Diodes (SBD) - JLCPCB Part Class: Extended Part - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### F1 — [MF-R050-2](https://www.flux.ai/adrian95/mf-r050-2~y77.md) - Role: Protection - Manufacturer Name: Bourns Inc. - Role Details: Fusible resettable PTC radial 500mA through-hole para baquelita - Datasheet URL: https://www.bourns.com/docs/product-datasheets/mf-r.pdf - Manufacturer Part Number: MF-R050-2 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Fuse **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — [KF128-5.08-2P-AA](https://www.flux.ai/lcsc/kf128-5p08-2p-aa~0pbi.md) - Mount: Through Hole - Manufacturer Part Number: KF128-5.08-2P-AA - Connector Type: Screw terminal - Connector Positions: 2 - Connector Rows: 1 - Manufacturer Name: KEFA(科发) - Product Info Url: https://lcsc.com/product-detail/New-Quadratic-Unclassified-Data_Cixi-Kefa-Elec-KF128-5-08-2P_C474952.html - Package or Case Code: CONN-TH - Operating Temperature: -40℃~+105℃ - Current Rating: 24A - Role: Power Input - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2408211511_Cixi-Kefa-Elec-KF128-5-08-2P-AA_C474952.pdf - Role Details: Bornera alternativa de alimentación through-hole 5.08mm - LCSC Part Number: C474952 - Part Type: Screw terminal - Connector Pitch: 5.08mm - Connector Gender: Female - JLCPCB Part Class: Extended Part **Pins:** - 1 [pin 1] - 2 [pin 2] ### J2 — [KF128-5.08-2P-AA](https://www.flux.ai/lcsc/kf128-5p08-2p-aa~0pbi.md) - Connector Rows: 1 - Connector Positions: 2 - Connector Type: Screw terminal - Manufacturer Part Number: KF128-5.08-2P-AA - Role Details: Bornera de salida a parlante through-hole 5.08mm - Current Rating: 24A - Product Info Url: https://lcsc.com/product-detail/New-Quadratic-Unclassified-Data_Cixi-Kefa-Elec-KF128-5-08-2P_C474952.html - Package or Case Code: CONN-TH - Manufacturer Name: KEFA(科发) - Operating Temperature: -40℃~+105℃ - LCSC Part Number: C474952 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2408211511_Cixi-Kefa-Elec-KF128-5-08-2P-AA_C474952.pdf - Mount: Through Hole - Role: Speaker Output - JLCPCB Part Class: Extended Part - Connector Pitch: 5.08mm - Connector Gender: Female - Part Type: Screw terminal **Pins:** - 1 [pin 1] - 2 [pin 2] ### J3 — [SJ1-3533NG](https://www.flux.ai/vasy_skral/sj1-3533ng~lvo.md) - Role Details: Jack 3.5 mm TRS through-hole; TIP a AUDIO_IN, SLEEVE a GND, RING sin conectar - Role: Audio input connector - Manufacturer Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/sj1-353xng.pdf - Mount: Through Hole - Manufacturer Part Number: SJ1-3533NG - Part Type: Connector **Pins:** - R [pin 3] - S [pin 1] - T [pin 2] ### J4 — [PJ-037A](https://www.flux.ai/vasy_skral/pj-037a~6cq.md) - Role Details: Jack DC barril 5.5x2.1mm centro positivo, through-hole para baquelita - Role: Power Input - Manufacturer Name: CUI Devices - Mount: Through Hole - Part Type: Connector - Package or Case Code: CONN-TH - Manufacturer Part Number: PJ-002A / DC barrel jack 5.5x2.1mm through-hole equivalent - Datasheet URL: https://www.cuidevices.com/product/resource/pj-037a.pdf **Pins:** - Center pin [pin 1] - Terminal [pin 2] ### Q1 — [2N7000-D26Z](https://www.flux.ai/lcsc/2n7000-d26z~lln1.md) - Role: Preamp Transistor - Manufacturer Part Number: 2N7000-D26Z - Part Type: MOSFETs - JLCPCB Part Class: Extended Part - Manufacturer Name: onsemi(安森美) - Package or Case Code: TO-92-3_L4.8-W3.7-P2.54-L - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_onsemi-2N7000-D26Z_C258193.pdf - Role Details: N-MOSFET 2N7000 TO-92 through-hole para baquelita; verificar pinout G-D-S - LCSC Part Number: C258193 - Product Info Url: https://lcsc.com/product-detail/MOSFET_ON-Semicon_2N7000-D26Z_ON-Semicon-ON-2N7000-D26Z_C258193.html **Pins:** - D [pin 3] - G [pin 2] - S [pin 1] ### Q2 — BS250P - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/cebcc4e9dfbcd3940e103f7f019445264d36d4c60da7684cc5cdc2aab65da497.pdf - Package or Case Code: 92-TO - Continuous Drain Current: 180mA - Manufacturer Part Number: BS250P - Part Type: Transistors - Mount: Through Hole - Manufacturer Name: Diodes - Drain to Source Voltage: 45V - Role Details: P-MOSFET BS250P TO-92 para rampa PWM; pinout común 1=S, 2=G, 3=D; verificar datasheet - Role: Signal Generation - Transistor Type: P-channel MOSFET **Pins:** - D [pin 3] - G [pin 2] - S [pin 1] ### Q3 — [2N7000-D26Z](https://www.flux.ai/lcsc/2n7000-d26z~lln1.md) - Manufacturer Part Number: 2N7000-D26Z - Part Type: MOSFETs - Role Details: N-MOSFET 2N7000 TO-92 through-hole para baquelita; verificar pinout G-D-S - Package or Case Code: TO-92-3_L4.8-W3.7-P2.54-L - Manufacturer Name: onsemi(安森美) - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_onsemi-2N7000-D26Z_C258193.pdf - Product Info Url: https://lcsc.com/product-detail/MOSFET_ON-Semicon_2N7000-D26Z_ON-Semicon-ON-2N7000-D26Z_C258193.html - LCSC Part Number: C258193 - Role: Ramp Generator **Pins:** - D [pin 3] - G [pin 2] - S [pin 1] ### Q4 — [2N7000-D26Z](https://www.flux.ai/lcsc/2n7000-d26z~lln1.md) - Manufacturer Name: onsemi(安森美) - JLCPCB Part Class: Extended Part - Role Details: N-MOSFET 2N7000 TO-92 through-hole para baquelita; verificar pinout G-D-S - Package or Case Code: TO-92-3_L4.8-W3.7-P2.54-L - Part Type: MOSFETs - Manufacturer Part Number: 2N7000-D26Z - LCSC Part Number: C258193 - Product Info Url: https://lcsc.com/product-detail/MOSFET_ON-Semicon_2N7000-D26Z_ON-Semicon-ON-2N7000-D26Z_C258193.html - Role: PWM Comparator - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_onsemi-2N7000-D26Z_C258193.pdf **Pins:** - D [pin 3] - G [pin 2] - S [pin 1] ### Q5 — BS250P - Drain to Source Voltage: 45V - Role Details: P-MOSFET BS250P TO-92 para driver; pinout común 1=S, 2=G, 3=D; verificar datasheet - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/cebcc4e9dfbcd3940e103f7f019445264d36d4c60da7684cc5cdc2aab65da497.pdf - Transistor Type: P-channel MOSFET - Part Type: Transistors - Manufacturer Part Number: BS250P - Package or Case Code: 92-TO - Role: Switching - Manufacturer Name: Diodes - Mount: Through Hole - Continuous Drain Current: 180mA **Pins:** - D [pin 3] - G [pin 2] - S [pin 1] ### Q6 — [IRF9Z34NPBF](https://www.flux.ai/adrian95/irf9z34npbf~srn.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: IRF9Z34NPBF - Manufacturer Name: Infineon Technologies - Role: Power Switch - Role Details: P-MOSFET IRF9Z34NPBF TO-220 through-hole para baquelita - Datasheet URL: https://www.infineon.com/dgdl/irf9z34npbf.pdf - Part Type: Transistor **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q7 — [IRLZ44NPBF](https://www.flux.ai/jecstronic/irlz44npbf~kg9.md) - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLZ44N_DataSheet_v01_01_EN-3363447.pdf - Mount: Through Hole - Part Type: Transistor - Manufacturer Part Number: IRLZ44NPBF - Package or Case Code: 220-TO - Role: Power Switch - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: N-MOSFET de potencia IRLZ44N TO-220 para baquelita - Manufacturer Name: Infineon Technologies **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/king788/amplificador-clase-d-discreto~67](https://www.flux.ai/king788/amplificador-clase-d-discreto~67).* --- *Generated from [https://www.flux.ai/king788/amplificador-clase-d-discreto~67](https://www.flux.ai/king788/amplificador-clase-d-discreto~67)*