Chips IC

Circuitos digitales integrados de series 74.

Circuitos integrados digitales de serie CD40.

Acopladores ópticos.

Reloj y calculadora de tipo Ics.

Amplificadores operacionales.

Interruptor de encendido Ics

Controlador de tipo Ics

Memoria flash

Memoria.

Propósito especial de audio

Reloj / temporización: aplicación específica

Reloj / sincronización: búferes de reloj, controladores

Reloj / sincronización: generadores de reloj, PLLS, sintetizadores de frecuencia.

Reloj / temporización: Líneas de retraso.

Reloj / temporización: batarías de tipo IC.

Reloj / temporización: Temporizadores y osciladores programables

Reloj / temporización: relojes de tiempo real

Adquisición de datos de tipo ADCs/DACs-Propósito especial.

Adquisición de datos: terminacion frontal análoga.

Adquisición de datos -Convertidores de datos analógicos a digitales.

Adquisición de datos: potenciometros digitales.

Adquisición de datos: convertidores digitales a analógicos.

Data Acquisition: controladores para pantalla táctil.

Integrado: CPLD (dispositivos lógicos programables complejos)

Integrado - DSP Procesadores de señal digital.

Integrado -FPGAs (Arreglos de compuertas lógicas programables en sitio).

Integrado -FPGAs (Arreglos de compuertas lógicas programables en sitio). Con micro controladores.

Integrado -micro controlador, microprocesador, módulos de tipo FPGA.

Integrado -micro controladores

Integrado -micro controladores-aplicación específica.

Integrado -microprocesadores.

Integrado -dispositivo lógico programable.

Integrado -Sistema en chip (SoC); describe la tendencia cada vez más frecuente de usar tecnologías de fabricación que integran todos o gran parte de los módulos que componen un computador o cualquier otro sistema informático o electrónico en un único circuito integrado o chip.

Sistema de comunicación interfaz-interruptores analógicos

Interfaz - Interruptores analógicos, multiplexores, demultiplexores

Interfaz - CODECs

Interfaz -controladores.

Interfaz -síntesis digital directa.

Interfaz -controladores,receptores, tranceptores.

Interfaz -Codificadores, decodificadores, convertidores.

Interfaz -filtros-activo.

Interfaz -I/O expansores de tipo I/O.

Interfaz - modems-modulos de tipo ICs.

Interfaz - modulos.

Interfaz -interfaces de detectores y sensores.

Interfaz-Sensor, táctil capacitivo.

Interfaz-Serializadores, Deserializadores

Interfaz-Búferes de señal, repetidores, divisor.

Interfaz-terminadoras de señal.

Interfaz-especializda.

Interfaz-telecomunicaciones.

Interfaz de tipo UARTs ,Transmisor receptor asíncrono universal.

Interfaz-Grabación de voz y reproducción.

Lineal-amplificadores-audio.

Lineal-amplificadores,intrumentación, amplificadores OP, amplificadores de tipo buffer.

Lineal-amplificadores, proósito especial.

Lineal-amplificadores, amplificadores y módulos.

Lineal-multiplicadores análogos, divisores.

Lineal-comparadores.

Lineal-procesadores de video.

Logico-buffers, controladores,receptores,transductores.

Logico-comparadores.

Logico-contadores, divisores.

Logico-memoria de tipo FIFOs.

Lógica - Chanclas

Logico-puertas de acceso e invertores.

Logic-puertas de acceso e invertores, multi función, configurable.

Lógica - Cierres

Logico-multivibradores.

Logico-Generadores y verificadores de paridad.

Logico-Registros de desplazamiento.

Logico-Signal Switches, Multiplexers, Decoders.

Logico-Lógica de especialidad.

Logico-Traductores, cambiadores de nivel.

Logico-Funciones de bus universal.

Memoria-baterías.

Memoria-configuración de tipo Proms para FPGAs.

Memoria-controladores.

Memoria-convertidores de tipo AC DC, Switchers sin conexión.

PMIC - caragadores de batería.

PMIC - administración de la batería.

PMIC - regulación actualizada/admisntración.

PMIC - controladores de pantalla.

PMIC -Medición de energía

PMIC - total o lleno, controladores de medio puente.

PMIC - controladores de puerta de acceso.

PMIC -Controladores de intercambio en caliente.

PMIC -controladores de tipo laser.

PMIC -controladores de tipo LED.

PMIC -Iluminación, controladores de balasto.

PMIC -controladores de motor, controladores.

PMIC - Controladores , diodos ideales.

PMIC -Corrección del factor de poder.

PMIC -Interruptores de distribución de energía, controladores de carga.

PMIC -administración de poder,especializado.

PMIC - poder sobre internet, controladores.

PMIC - controladores fuente de poder, monitores.

PMIC - cconvertidores.

PMIC -supervisores.

PMIC - administración térmica.

PMIC -convertidores.

PMIC -referencia de voltaje.

PMIC -reguladores de voltaje, Controladores de conmutación.

PMIC -reguladores y reguladores de conmutación.

PMIC -reguladores de voltaje/lineal.

PMIC - reguladores de voltaje-lineal-conmutadores.

PMIC -reguladores de voltaje-lineal- controladores lineales de regulación.

PMIC - reguladores de voltaje-proósito especial.

Ics especializados.

Módulos

IGBT

IPM

Tiristores

rectificadores.

fuente de poder.

módulo de poder inteligente.

SCR, GTO y diodo

FET

transistoresde tipo Darlington.

módulos de tipo RF.

productos de tipo CNC.

codificador

motor

controlador servo/amplificador/servo ya previamente explicado.

módulo de diodo

modulo de transistor.

Interruptor de relé

PLC

inversor

Contactor y disyuntor

tablero de elevador

control industrial

Transistores

diodos

Transistores bipolares

Resistencias

Resistores De Película De Carbón

Resistencias De Cerámica

Eletrolíticos De Alumínio

Chip Resistor - Surface Mount

Current Sense Resistors

Fusible Chip Resistor

High Precision & Low TCR SMD Resistors

High Voltage Resistor

LED Strip Resistors

MELF Resistor

Metal Alloy Resistors

Metal Film Resistor (TH)

Metal Glaze Resistors

Metal Oxide Film Resistors

Metal Oxide Resistors

NTC Thermistors

PTC Thermistors

Photoresistors

Potentiometers & Variable Resistors

Precision Potentiometer

Resistor Networks & Arrays

Resistor Networks & Arrays (TH)

Ultra Low Resistors (SMD)

Variable Resistors

Varistors

Wirewound Resistors

Condensadores

Condensadores - SMD

Condensadores De CBB

Condensadores de tantalio

High Voltage Capacitors

Metallized Polyester Film Capacitor

Multilayer Ceramic Capacitors MLCC - Leaded

Multilayer Ceramic Capacitors MLCC - SMD/SMT

Mylar Capacitor

Niobium Oxide Capacitors

Polyester Film Capacitors

Solid Polymer Electrolytic Capacitor

Supercapacitors & Ultracapacitors

Suppression Capacitors

Tantalum Capacitors

Trimmers, Variable Capacitors

inductores y perlas de ferrita y transformadores

Inductores De Multicapa

Inductores De Bobinado De Alambre Enrollado

General Inductors (TH)

HF Inductors

Inductors (SMD)

LINE Filter

Power Inductors

Power Transformer

RJ45 Transformer

Radial Inductor (TH)

The circular inductors

Cristales Osciladores

49S

49SMD

49U

Ceramic Resonators

DIP Oscillators(XO)

Radial Cylinder Crystals

SAW Resonators

SMD Crystals

SMD Oscillators(XO)

Conector

Cableado enchufable

Conectores de audio y video

Bloques de terminales a través de la pared

Card Edge Connectors

Circular Connectors

Connector - Card Sockets

Connectors

Connectors - Accessories

Connectors - Housings

Contacts

D-Sub Connectors

Ethernet Connectors/Modular Connectors

FFC, FPC (Flat Flexible) Connectors

Fiber Optic Connectors

IC & Component Sockets

LED Light Pipes

Mezzanine Connectors (Board to Board)

PCB Connectors - Headers, Male Pins

PCB Connectors - Headers, Receptacles, Female Sockets

PCB Connectors - Housings

Conectores de alimentación

RF Connectors/Coaxial Connectors

Shunts & Jumpers

Terminal Blocks - Accessories

Terminal Blocks - Barrier Blocks

Terminal Blocks - Din Rail, Channel

Terminal Blocks - Headers, Plugs and Sockets

Terminals

Test Clips

Test Points/Test Rings

USB Connectors

Unspecified Connectors

Screw-type wiring

Spring-type wiring

Pluggable Terminal Blocks

Through-wall Terminal Blocks

Terminales Automotrices

Carcasas de terminales, manguitos y bloques de aislamiento

Terminales y conectores de cable de desconexión rápida

Herramientas de repuesto y desgaste

Conectores automotrices

Conectores de placa de circuito impreso

Acceder

3. Presione "centro de cuenta" -> "Mis consultas" y revise el estado de sus consultas

Dear customers, due to the implementation of the GDPR policy in Europe, UTSOURCE has also made adjustment accordingly to meet the policy requirements. Please read the new privacy policy carefully and this window will no longer pop up after you accept it.

Estoy de acuerdo con todos los términos y condiciones de UTSOURCE,Privacidad y términos legales
Agree Later Entregar

Delivery Address

Alternate Text

+ Añadir dirección

Confirmar

Nueva dirección de transporte

*País/Región :
*Consignatario :
*Teléfono móvil:
+

* Por favor, complete el número de teléfono celular correctamente para asegurarse de que puede recibir la información de seguimiento a tiempo.

Código de país
*Calle :
*Ciudad :
Provincia/Estado :
*Provincia/Estado :
*Código postal :
Please enter a new 5-digit zip code..
Nombre de empresa :
Cancelar
Entregar

Memoria-convertidores de tipo AC DC, Switchers sin conexión.

Filters:
clear
Alternate Text
Cantidad de productos pertinentes:3911
Alternate Text Utsource
MC33364D

Enlarge

Used and refurbished parts guaranteed can work well

MC33364D

SOP14

On Semiconductor

IC CTRLR SMPS OTP UVLO 16SOIC

Utsource

≥1:

€2.58382

€2.32544

≥5:

€2.45463

€2.20916

≥10:

€2.32544

€2.09289

≥20:

€2.26084

€2.03476

≥50:

€2.19625

€1.97662

≥100:

€2.13165

€1.91848

≥200:

€2.06705

€1.86035

≥500:

€2.04122

€1.83709

≥1000:

€2.00246

€1.80221

From: €2.00246

Description: MC33364D is a low-power, low-voltage, CMOS operational amplifier with rail-to-rail input and output. Features: Low supply current: 2.2 mA/amplifier Low input offset voltage: 0.5 mV max

Depósito:10000

Mínimo:2

Favorita

UCC3804DTR

Enlarge

Used and refurbished parts guaranteed can work well

UCC3804DTR

SOP8

Texas Instruments

07+

IC OFFLINE SWITCH MULT TOP 8SOIC

Utsource

≥1:

€1.45961

€1.31365

≥5:

€1.09471

€0.98524

≥10:

€0.65683

€0.59114

≥20:

€0.63858

€0.57472

≥50:

€0.62033

€0.55830

≥100:

€0.60209

€0.54188

≥200:

€0.58385

€0.52546

≥500:

€0.57655

€0.51889

≥1000:

€0.56560

€0.50904

From: €0.56560

Depósito:10000

Mínimo:2

Favorita

LNK306PN

Enlarge

Used and refurbished parts guaranteed can work well

LNK306PN

N/A

Utsource

≥1:

€1.16272

€1.04645

≥5:

€0.77515

€0.69763

≥10:

€0.69763

€0.62787

≥20:

€0.67825

€0.61043

≥50:

€0.65887

€0.59299

≥100:

€0.63949

€0.57555

≥200:

€0.62012

€0.55811

≥500:

€0.61236

€0.55113

≥1000:

€0.60074

€0.54066

From: €0.60074

Depósito:10000

Mínimo:2

Favorita

NCP1014AP065

Enlarge

Used and refurbished parts guaranteed can work well

NCP1014AP065

DIP7

On Semiconductor

07+

Self-supplied Monolithic Switcher For Low Standby-power Offline SMPS

Utsource

≥1:

€1.03353

€0.93017

≥5:

€0.77515

€0.69763

≥10:

€0.46509

€0.41858

≥20:

€0.45217

€0.40695

≥50:

€0.43925

€0.39532

≥100:

€0.42633

€0.38370

≥200:

€0.41341

€0.37207

≥500:

€0.40824

€0.36742

≥1000:

€0.40049

€0.36044

From: €0.40049

NCP1014AP065 is an adjustable low dropout (LDO) linear voltage regulator from ON Semiconductor. It is a 7-pin DIP package and has a maximum output current of 650 mA. The NCP1014AP065 is a low-noise,

Depósito:10000

Mínimo:2

Favorita

SSC9522S

Enlarge

Used and refurbished parts guaranteed can work well

SSC9522S

SOP-18

Sanken Electric

IC CTLR QUASI RES AC/DC 8SOP

Utsource

≥1:

€2.05510

€1.84959

≥5:

€1.37006

€1.23306

≥10:

€1.23306

€1.10975

≥20:

€1.19881

€1.07893

≥50:

€1.16456

€1.04810

≥100:

€1.13031

€1.01728

≥200:

€1.09605

€0.98644

≥500:

€1.08236

€0.97412

≥1000:

€1.06180

€0.95562

From: €1.06180

Description: SSC9522S is a SOP-18 package, low-dropout (LDO) linear regulator from Sanken. Features: * Output voltage range: 1.2V to 5.0V * Output current: up to 1.5A * Low dropout voltage: 0.4V (typ

Depósito:10000

Mínimo:2

Favorita

TNY276PG

Enlarge

Used and refurbished parts guaranteed can work well

TNY276PG

DIP-7

Power

11+

Energy-Effi cient, Off-Line Switcher With Enhanced Flexibility and Extended Power Range

Utsource

≥1:

€0.79042

€0.71138

≥5:

€0.59282

€0.53353

≥10:

€0.41498

€0.37348

≥20:

€0.39521

€0.35569

≥50:

€0.35569

€0.32012

≥100:

€0.34581

€0.31123

≥200:

€0.33593

€0.30234

≥500:

€0.32605

€0.29345

≥1000:

€0.31617

€0.28455

From: €0.31617

Description: The TNY276PG is a high performance off-line switcher integrated circuit with minimal external components. Features: Operating frequency up to 100kHz Low start-up current Low operating

Depósito:10000

Mínimo:3

Favorita

UCC3895DWTRG4

Enlarge

Used and refurbished parts guaranteed can work well

UCC3895DWTRG4

SOP20

Rochester Electronics Llc

07+

IC OFFLINE SW FULL-BRDG 20SOIC

Utsource

≥1:

€1.31548

€1.18393

≥5:

€0.87699

€0.78929

≥10:

€0.78929

€0.71036

≥20:

€0.76737

€0.69063

≥50:

€0.74544

€0.67090

≥100:

€0.72352

€0.65117

≥200:

€0.70159

€0.63143

≥500:

€0.69282

€0.62354

≥1000:

€0.67967

€0.61170

From: €0.67967

Depósito:10000

Mínimo:2

Favorita

MIC38HC44BM

Enlarge

Used and refurbished parts guaranteed can work well

MIC38HC44BM

SMD8

Micrel

04+

DIODE SCHOTTKY 1A 200V PWRDI 123

Utsource

≥1:

€2.93695

€2.64326

≥5:

€1.95797

€1.76217

≥10:

€1.76217

€1.58596

≥20:

€1.71322

€1.54190

≥50:

€1.66427

€1.49784

≥100:

€1.61532

€1.45379

≥200:

€1.56638

€1.40974

≥500:

€1.54679

€1.39211

≥1000:

€1.51743

€1.36568

From: €1.51743

Description: The MIC38HC44BM is a high-speed, low-power, high-performance CMOS voltage regulator designed to provide a regulated output voltage with a minimum of external components. Features: Low q

Depósito:10000

Mínimo:2

Favorita

FSDM0565RBWDTU

Enlarge

Used and refurbished parts guaranteed can work well

FSDM0565RBWDTU

TO220F

FAI

Utsource

≥1:

€1.53471

€1.38124

≥5:

€1.15103

€1.03593

≥10:

€0.69062

€0.62156

≥20:

€0.67143

€0.60429

≥50:

€0.65225

€0.58703

≥100:

€0.63307

€0.56977

≥200:

€0.61388

€0.55249

≥500:

€0.60621

€0.54559

≥1000:

€0.59470

€0.53523

From: €0.59470

Depósito:10000

Mínimo:2

Favorita

TNY286KG

Enlarge

Used and refurbished parts guaranteed can work well

TNY286KG

ESIP-7C

Power

1339+

IC OFF-LINE SWITCH PWM 12SOP

Utsource

≥1:

€1.18563

€1.06707

≥5:

€0.79042

€0.71138

≥10:

€0.71138

€0.64024

≥20:

€0.69161

€0.62245

≥50:

€0.67186

€0.60467

≥100:

€0.65210

€0.58689

≥200:

€0.63234

€0.56910

≥500:

€0.62443

€0.56199

≥1000:

€0.61257

€0.55131

From: €0.61257

The TNY286KG is a high-efficiency, low-power, off-line switching regulator IC from Power Integrations. It is designed to provide a regulated output voltage from a wide range of input voltages. It is a

Depósito:10000

Mínimo:2

Favorita

KA1H0165RTU

Enlarge

Used and refurbished parts guaranteed can work well

KA1H0165RTU

TO-220

Fairchil

Fairchild Power SwitchFPS

Utsource

≥1:

€3.09153

€2.78238

≥5:

€2.93695

€2.64326

≥10:

€2.78238

€2.50414

≥20:

€2.70509

€2.43458

≥50:

€2.62780

€2.36502

≥100:

€2.55051

€2.29546

≥200:

€2.47322

€2.22590

≥500:

€2.44231

€2.19808

≥1000:

€2.39594

€2.15634

From: €2.39594

Depósito:10000

Mínimo:1

Favorita

KA5H0165RYDTU

Enlarge

Used and refurbished parts guaranteed can work well

KA5H0165RYDTU

TO-220

FSC

Fairchild Power SwitchFPS

Utsource

≥1:

€2.58382

€2.32544

≥5:

€2.45463

€2.20916

≥10:

€2.32544

€2.09289

≥20:

€2.26084

€2.03476

≥50:

€2.19625

€1.97662

≥100:

€2.13165

€1.91848

≥200:

€2.06705

€1.86035

≥500:

€2.04122

€1.83709

≥1000:

€2.00246

€1.80221

From: €2.00246

Depósito:10000

Mínimo:2

Favorita

NCP1234BD65R2G

Enlarge

Used and refurbished parts guaranteed can work well

NCP1234BD65R2G

SOP-7

On Semiconductor

12+

IC REG CTRLR FLYBACK PWM 7SOIC

Utsource

≥1:

€0.96903

€0.87212

≥10:

€0.87212

€0.78491

≥100:

€0.77522

€0.69770

≥1000:

€0.75100

€0.67590

≥2500:

€0.72677

€0.65409

≥5000:

€0.67832

€0.61049

≥10000:

€0.65409

€0.58868

From: €0.65409

NCP1234BD65R2G is an integrated circuit (IC) manufactured by ON Semiconductor. It is a high-voltage, high-speed, fixed-frequency current-mode PWM controller. It is designed to provide improved perform

Depósito:10000

Mínimo:5

Favorita

VIPER20ASPTR-E

Enlarge

Used and refurbished parts guaranteed can work well

VIPER20ASPTR-E

HSOP-10

Utsource

≥1:

€3.86237

€3.47614

≥5:

€3.66926

€3.30233

≥10:

€3.47614

€3.12853

≥20:

€3.37958

€3.04162

≥50:

€3.28301

€2.95471

≥100:

€3.18646

€2.86781

≥200:

€3.08990

€2.78091

≥500:

€3.05127

€2.74614

≥1000:

€2.99334

€2.69401

From: €2.99334

Depósito:10000

Mínimo:1

Favorita

STR-W6052S

Enlarge

Used and refurbished parts guaranteed can work well

STR-W6052S

HTSSOP14

Sanken Electric

IC REG PWM CONV AC/DC TO-220F-6

Utsource

€0.94300

€0.84870

From: €0.94300

Depósito:10000

Mínimo:3

Favorita

TFS758HG

Enlarge

Used and refurbished parts guaranteed can work well

TFS758HG

eSIP

Power

15+

Utsource

≥1:

€1.93786

€1.74408

≥5:

€1.29191

€1.16272

≥10:

€1.16272

€1.04645

≥20:

€1.13042

€1.01738

≥50:

€1.09812

€0.98831

≥100:

€1.06582

€0.95924

≥200:

€1.03353

€0.93017

≥500:

€1.02061

€0.91855

≥1000:

€1.00123

€0.90111

From: €1.00123

Depósito:10000

Mínimo:2

Favorita

VIPER20ASP-E

Enlarge

Used and refurbished parts guaranteed can work well

VIPER20ASP-E

HSOP-10

STMicroelectronics

IC SWIT SMPS CM OTP POWERSO10

Utsource

≥1:

€3.62553

€3.26298

≥5:

€3.44426

€3.09983

≥10:

€3.26298

€2.93668

≥20:

€3.17234

€2.85511

≥50:

€3.08170

€2.77353

≥100:

€2.99106

€2.69196

≥200:

€2.90042

€2.61038

≥500:

€2.86417

€2.57775

≥1000:

€2.80979

€2.52881

From: €2.80979

Description: The VIPER20ASP-E is a monolithic integrated circuit in an HSOP-10 package, designed for use as an off-line SMPS (Switch Mode Power Supply) primary-side controller. Features: Low start-u

Depósito:10000

Mínimo:1

Favorita

TOP250YN

Enlarge

Used and refurbished parts guaranteed can work well

TOP250YN

TO220/6

Power

05 /04

Utsource

≥1:

€1.93221

€1.73899

≥5:

€1.28814

€1.15932

≥10:

€1.15932

€1.04339

≥20:

€1.12712

€1.01441

≥50:

€1.09492

€0.98542

≥100:

€1.06271

€0.95644

≥200:

€1.03051

€0.92746

≥500:

€1.01763

€0.91587

≥1000:

€0.99831

€0.89848

From: €0.99831

Depósito:10000

Mínimo:2

Favorita

STR-W6756

Enlarge

Used and refurbished parts guaranteed can work well

STR-W6756

TO220-6

SK

03+

Quasi-Resonant Topology Primary Switching Regulators

Utsource

≥1:

€2.32544

€2.09289

≥5:

€1.55029

€1.39526

≥10:

€1.39526

€1.25574

≥20:

€1.35651

€1.22085

≥50:

€1.31775

€1.18597

≥100:

€1.27899

€1.15109

≥200:

€1.24023

€1.11621

≥500:

€1.22473

€1.10226

≥1000:

€1.20148

€1.08133

From: €1.20148

Description: The STR-W6756 is a power IC designed for switch-mode power supplies (SMPS). It is a high-performance, low-cost, and low-power device. Features: Low power consumption High efficiency L

Depósito:10000

Mínimo:2

Favorita

TOP243P

Enlarge

Used and refurbished parts guaranteed can work well

TOP243P

DIP-7

Power Integrations

IC OFFLINE SWIT OVP UVLO HV 8DIP

Utsource

≥1:

€1.25947

€1.13352

≥5:

€0.83965

€0.75568

≥10:

€0.75568

€0.68011

≥20:

€0.73469

€0.66122

≥50:

€0.71370

€0.64233

≥100:

€0.69271

€0.62344

≥200:

€0.67172

€0.60455

≥500:

€0.66332

€0.59699

≥1000:

€0.65073

€0.58565

From: €0.65073

Description: TOP243P is a high-performance off-line switcher IC with a minimum of external components. Features: - Low start-up current - Low operating current - Low standby power - Internal thermal

Depósito:10000

Mínimo:2

Favorita

Alternate Text
Alternate Text

Moneda:

Alternate Text Alternate Text Alternate Text

Productos Nuevo Usado

Detener a los expertos en producción, podemos proporcionar una gran cantidad de componentes electrónicos que se han detenido y que son difíciles de encontrar para facilitar la empresa de mantenimiento.

Alternate Text Depósito

Inventario Cero

Inventario Cero

Llamar gratis

(888) 766 5577 USA & Canadá

+52 5515436027
+52 5515436028 México

+49 6931090199 Alemania

+55 21 3609 8727 Brasil

(800) 137235 Italia

(900) 649657 España

Whatsapp

+1 (312) 899-4831 USA

+49 15217848563 Alemania

+52 55 7637 4368 México

Email

sales@utsource.com

PAGOS GLOBALES

Logística global

footShip
Copyright © 2022 Power by UTSOURCE INTERNATIONAL LIMITED ISO/IEC 20000-1:2011,ISO/IEC 27001:2013 鄂ICP备2021003526号-1