Mostra tutto

Versione inglese è quella ufficialeTornare a

Europa
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Netherlands(Nederland) Spain(español) Turkey(Türk dili) Israel(עִבְרִית) Denmark(Dansk) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacifico
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Philippines(Pilipino)
Africa, India e Medio Oriente
India(हिंदी)
Nord America
United States(English) Canada(English) Mexico(español)
CasaCentro di prodottiSensori, trasduttoriTrasduttori di corrente

Trasduttori di corrente

Prodotti 408 trovati

Elenco dei prodotti

12345679
Confronto Immagine Parte # fabbricante Descrizione Magazzino Modello ECAD RoHS Linearità Tensione di alimentazione - Produzione Corrente - Alimentazione (max) Tipo sensore Precisione Tempo di risposta per Misurare Corrente - Sensing Numero di prodotto di base Pacchetto Serie Frequenza temperatura di esercizio Tipo montaggio sensibilità Numero di canali Contenitore / involucro Polarizzazione Contenitore dispositivo fornitore Quantità
L08P050D15 L08P050D15 Tamura SENSOR CURRENT HALL 50A AC/DC In magazzino3810 pcs ±1% ±15V Ratiometric, Voltage 12mA Hall Effect, Open Loop - 10µs AC/DC 50A - Bulk - DC ~ 100kHz -10°C ~ 80°C Through Hole - 1 Module Bidirectional -
ACS723LLCTR-40AB-T ACS723LLCTR-40AB-T Allegro MicroSystems SENSOR CURRENT HALL 40A AC/DC In magazzino15873 pcs ±1% 5V Ratiometric, Voltage 14mA Hall Effect, Open Loop ±3% 5µs AC/DC 40A ACS723 Tape & Reel (TR) - DC ~ 80kHz -40°C ~ 150°C Surface Mount 50mV/A 1 8-SOIC (0.154', 3.90mm Width) Bidirectional 8-SOIC
ACS72981KLRATR-150B3 ACS72981KLRATR-150B3 Allegro MicroSystems HIGH PRECISION LINEAR HALL EFFEC In magazzino13632 pcs ±0.8% 3V ~ 3.6V Ratiometric, Voltage 14mA (Typ) Hall Effect, Differential - 1.8µs AC/DC 150A ACS729 Tape & Reel (TR) - DC ~ 250kHz -40°C ~ 125°C (TA) Surface Mount 8.8mV/A 1 7-PowerSMD Module Bidirectional 7-PSOF
L18P020D15 L18P020D15 Tamura SENSOR CURRENT HALL 20A AC/DC In magazzino5882 pcs ±1% ±15V Ratiometric, Voltage 15mA Hall Effect, Open Loop - 5µs AC/DC 20A - Bulk - DC ~ 100kHz -30°C ~ 80°C Through Hole - 1 Module Bidirectional -
CSLA2GE CSLA2GE Honeywell Sensing and Productivity Solutions SENSOR CURRENT HALL 92A AC/DC In magazzino3970 pcs - 6V ~ 12V Ratiometric, Voltage 20mA Hall Effect, Open Loop - 3µs AC/DC 92A CSLA2 Bulk CSLA - -25°C ~ 85°C Through Hole 26.1mV/N 1 Module, Single Pass Through Bidirectional -
ACS710KLATR-6BB-T ACS710KLATR-6BB-T Allegro MicroSystems SENSOR CURRENT HALL 6A AC/DC In magazzino13232 pcs ±0.25% 3V ~ 5.5V Ratiometric, Voltage 14.5mA Hall Effect, Open Loop ±1.6% 4µs AC/DC 6A ACS710 Tape & Reel (TR) - DC ~ 120kHz -40°C ~ 125°C Surface Mount 151mV/A 1 16-SOIC (0.295", 7.50mm Width) Bidirectional 16-SOIC
ACS750SCA-100 ACS750SCA-100 Allegro MicroSystems SENSOR CURRENT HALL 100A AC/DC In magazzino5130 pcs ±5% 5V Ratiometric, Voltage 10mA Hall Effect, Open Loop ±1.5% 27µs AC/DC 100A - Tube - DC ~ 13kHz -20°C ~ 85°C Through Hole 19.75mV/A 1 5-CA Formed Leads, PFF Bidirectional 5-CA Module
ACS780KLRTR-150U-T ACS780KLRTR-150U-T Allegro MicroSystems SENSOR CUR HALL 100A 7POWERSMD In magazzino11706 pcs ±1% 4.5V ~ 5.5V Ratiometric, Voltage 15mA Hall Effect, Differential ±0.8% 3.6µs AC/DC 100A ACS780 Tape & Reel (TR) Automotive, AEC-Q100 DC ~ 120kHz -40°C ~ 125°C Surface Mount 26.66mV/A 1 7-PowerSMD Module Unidirectional 7-PSOF
ACS730KLCTR-40AB-T ACS730KLCTR-40AB-T Allegro MicroSystems 1MHZ BANDWIDTH INTEGRATED, HALL In magazzino16912 pcs ±0.75% 4.5V ~ 5.5V Ratiometric, Voltage 25mA Hall Effect, Open Loop ±3% 700ns AC/DC 40A ACS730 Tape & Reel (TR) - 1MHz -40°C ~ 125°C Surface Mount 50mV/A 1 8-SOIC (0.154', 3.90mm Width) Bidirectional 8-SOIC
ACS732KLATR-40AB-T ACS732KLATR-40AB-T Allegro MicroSystems SENSOR CURRENT HALL 40A 16SOIC In magazzino9696 pcs ±0.5% 4.75V ~ 5.25V Ratiometric, Voltage 35mA Hall Effect, Differential ±1.7% 200ns AC/DC 40A ACS732 Tape & Reel (TR) Automotive, AEC-Q100 1MHz -40°C ~ 125°C Surface Mount 50mV/A 1 16-SOIC (0.295", 7.50mm Width) Bidirectional 16-SOIC
ACS752SCA-050 ACS752SCA-050 Allegro MicroSystems SENSOR CURRENT HALL 50A AC/DC In magazzino3790 pcs ±4% 5V Ratiometric, Voltage 10mA Hall Effect, Open Loop ±1% 8µs AC/DC 50A - Tube - DC ~ 50kHz -20°C ~ 85°C Through Hole 40mV/A 1 5-CA Formed Leads, PFF Bidirectional 5-CA Module
CSCA0100A000B15B01 CSCA0100A000B15B01 Honeywell Sensing and Productivity Solutions SENSOR CURRENT HALL 100A AC/DC In magazzino1168 pcs ±1% ±15V Ratiometric, Voltage 17mA Hall Effect, Open Loop ±2% 3µs AC/DC 100A CSCA0100 Bulk CSCA-A DC ~ 50kHz -10°C ~ 80°C Chassis Mount - 1 Module Bidirectional -
MLX91209LVA-CAA-000-BU MLX91209LVA-CAA-000-BU Melexis Technologies NV SENSOR CURRENT HALL 45MT AC/DC In magazzino15005 pcs ±0.4% 5V Ratiometric, Voltage 14mA Hall Effect, Open Loop ±0.1% 4µs AC/DC 45mT MLX91209 Bulk - DC ~ 200kHz -40°C ~ 125°C Through Hole 50mV/mT 1 4-SSIP Module Bidirectional 4-SIP
CSNE151 CSNE151 Honeywell Sensing and Productivity Solutions SENSOR CURRENT HALL 36A AC/DC In magazzino819 pcs ±0.2% ±15V Ratiometric, Current 10mA Hall Effect, Closed Loop ±0.5% 1µs AC/DC 36A - Bulk CSN DC ~ 150kHz 0°C ~ 70°C Through Hole - 1 Module, Single Pass Through Bidirectional -
ACS723LLCTR-40AU-T ACS723LLCTR-40AU-T Allegro MicroSystems SENSOR CURRENT HALL 40A DC In magazzino11317 pcs ±1% 5V Ratiometric, Voltage 14mA Hall Effect, Open Loop ±3% 5µs DC 40A ACS723 Tape & Reel (TR) - DC ~ 80kHz -40°C ~ 150°C Surface Mount 100mV/A 1 8-SOIC (0.154', 3.90mm Width) Unidirectional 8-SOIC
TMCS1101A1BQDR TMCS1101A1BQDR Texas Instruments CURRENT SENSOR In magazzino14640 pcs ±0.05% 3V ~ 5.5V Ratiometric, Voltage 6mA Hall Effect - 6.5µs AC/DC ±45A - Tape & Reel (TR) - 80kHz -40°C ~ 125°C (TA) Surface Mount 50mV/A 1 8-SOIC (0.154", 3.90mm Width) Bidirectional 8-SOIC
MLX91205KDC-AAL-003-RE MLX91205KDC-AAL-003-RE Melexis Technologies NV SENSOR CURRENT HALL 10MT AC/DC In magazzino4420 pcs ±0.05% 5V Ratiometric, Voltage 16mA Hall Effect, Open Loop ±0.2% 8µs AC/DC 10mT MLX91205 Tape & Reel (TR) Triaxis® DC ~ 100kHz -40°C ~ 125°C Surface Mount 280mV/mT 1 8-SOIC (0.154', 3.90mm Width) Bidirectional 8-SOIC
CSNR161 CSNR161 Honeywell Sensing and Productivity Solutions SENSOR CURRENT HALL 200A AC/DC In magazzino506 pcs - ±12V ~ 15V Ratiometric, Current 14mA Hall Effect, Closed Loop ±0.5% 0.5µs AC/DC 200A - Bulk CSN - -40°C ~ 85°C Through Hole - 1 Module, Single Pass Through Bidirectional -
CSLA2GF CSLA2GF Honeywell Sensing and Productivity Solutions SENSOR CURRENT HALL 125A AC/DC In magazzino4640 pcs - 6V ~ 12V Ratiometric, Voltage 20mA Hall Effect, Open Loop - 3µs AC/DC 125A CSLA2 Bulk CSLA - -25°C ~ 85°C Through Hole 19.6mV/N 1 Module, Single Pass Through Bidirectional -
ACS754LCB-100-PFF ACS754LCB-100-PFF Allegro MicroSystems SENSOR CURRENT HALL 100A AC/DC In magazzino3620 pcs ±1.5% 5V Ratiometric, Voltage 10mA Hall Effect, Open Loop ±1% 11µs AC/DC 100A - Tube - DC ~ 35kHz -40°C ~ 150°C Through Hole 20mV/A 1 5-CB Formed Leads, PFF Bidirectional 5-CB Module
TMCS1107A4BQDR TMCS1107A4BQDR Texas Instruments SENSOR CURRENT HALL EFFECT 8SOIC In magazzino18795 pcs ±0.5% 3V ~ 5.5V Ratiometric, Voltage 6mA Hall Effect - 6.5µs AC/DC - - Tape & Reel (TR) Automotive, AEC-Q100 80kHz -40°C ~ 125°C (TA) Surface Mount 400mV/A 1 8-SOIC (0.154", 3.90mm Width) Bidirectional -
ACS711EEXLT-15AB-T ACS711EEXLT-15AB-T Allegro MicroSystems SENSOR CURRENT HALL 15.5A AC/DC In magazzino4460 pcs ±1% 3V ~ 5.5V Ratiometric, Voltage 5.5mA Hall Effect, Open Loop ±5% 4.6µs AC/DC 15.5A - Tape & Reel (TR) - DC ~ 100kHz -40°C ~ 85°C Surface Mount 90mV/A 1 12-PowerWFQFN Bidirectional 12-QFN (3x3)
ACS714ELCTR-30A-T ACS714ELCTR-30A-T Allegro MicroSystems SENSOR CURRENT HALL 30A AC/DC In magazzino16297 pcs ±1.5% 5V Ratiometric, Voltage 13mA Hall Effect, Open Loop ±1.5% 3.5µs AC/DC 30A ACS714 Tape & Reel (TR) - DC ~ 80kHz -40°C ~ 85°C Surface Mount 66mV/A 1 8-SOIC (0.154', 3.90mm Width) Bidirectional 8-SOIC
ACS758KCB-150U-PFF-T ACS758KCB-150U-PFF-T Allegro MicroSystems SENSOR CURRENT HALL 150A 5-CB In magazzino8762 pcs ±1% 3V ~ 5.5V Ratiometric, Voltage 13.5mA Hall Effect, Open Loop ±1.6% 4µs DC 150A ACS758 Tube Automotive, AEC-Q100 DC ~ 120kHz -40°C ~ 125°C Through Hole 26.7mV/A 1 5-CB Formed Leads, PFF Unidirectional 5-CB Module
HLSR 10-P HLSR 10-P LEM USA Inc. SENSOR CURRENT HALL 10A AC/DC In magazzino5760 pcs ±0.5% 5V Ratiometric, Voltage 25mA Hall Effect, Open Loop ±1% 2.5µs AC/DC 10A - Tray HLSR-P 400kHz -40°C ~ 105°C Through Hole 80mV/A 1 Module Bidirectional -
L03S200D15 L03S200D15 Tamura SENSOR CURRENT HALL 200A AC/DC In magazzino3460 pcs ±1% ±15V Ratiometric, Voltage 12mA Hall Effect, Open Loop ±1% 5µs AC/DC 200A - Bulk - DC ~ 50kHz -20°C ~ 80°C Through Hole - 1 Module Bidirectional -
ACS711KEXLT-30AU-T ACS711KEXLT-30AU-T Allegro MicroSystems CURRENT SENSOR W/OVERCURRENT FAU In magazzino5240 pcs ±1% 3V ~ 5.5V Ratiometric, Voltage 5.5mA Hall Effect, Open Loop - 4.6µs AC/DC 30A - Bulk ACS711 DC ~ 100kHz -40°C ~ 125°C Surface Mount - 1 12-PowerWFQFN Unidirectional -
ACS718KMATR-10B-T ACS718KMATR-10B-T Allegro MicroSystems SENSOR CURRENT HALL 10A AC/DC In magazzino12050 pcs ±1% 5V Ratiometric, Voltage 9mA Hall Effect, Open Loop ±2% 13µs AC/DC 10A ACS718 Tape & Reel (TR) - 40kHz -40°C ~ 125°C Surface Mount 200mv/A 1 16-SOIC (0.295", 7.50mm Width) Bidirectional 16-SOIC
ACS717KMATR-10B-T ACS717KMATR-10B-T Allegro MicroSystems SENSOR CURRENT HALL 10A AC/DC In magazzino13357 pcs ±1% 3V ~ 3.6V Ratiometric, Voltage 7.5mA Hall Effect, Open Loop ±2% 13µs AC/DC 10A ACS717 Tape & Reel (TR) - 40kHz -40°C ~ 125°C Surface Mount 132mV/A 1 16-SOIC (0.295', 7.50mm Width) Bidirectional 16-SOIC
ACS733KLATR-40AU-T ACS733KLATR-40AU-T Allegro MicroSystems SENSOR CURRENT HALL 40A 16SOIC In magazzino12984 pcs ±0.5% 3.14V ~ 3.46V Ratiometric, Voltage 35mA Hall Effect, Differential ±1.7% 200ns AC/DC 40A ACS733 Tape & Reel (TR) Automotive, AEC-Q100 1MHz -40°C ~ 125°C Surface Mount 66mV/A 1 16-SOIC (0.295", 7.50mm Width) Unidirectional 16-SOIC
ACS756KCA-050B-PFF-T ACS756KCA-050B-PFF-T Allegro MicroSystems SENSOR CURRENT HALL 50A AC/DC In magazzino4360 pcs ±1.8% 3V ~ 5.5V Ratiometric, Voltage 14mA Hall Effect, Open Loop ±7.5% 3µs AC/DC 50A - Tube - DC ~ 120kHz -40°C ~ 125°C Through Hole 40mV/A 1 5-CA Formed Leads, PFF Bidirectional 5-CA Module
HLSR 20-P HLSR 20-P LEM USA Inc. SENSOR CURRENT HALL 20A AC/DC In magazzino5233 pcs ±0.5% 5V Ratiometric, Voltage 25mA Hall Effect, Open Loop ±1% 2.5µs AC/DC 20A - Tray HLSR-P 400kHz -40°C ~ 105°C Through Hole 40mV/A 1 Module Bidirectional -
L08P150D15M1 L08P150D15M1 Tamura SENSOR In magazzino2701 pcs ±1% 15V Ratiometric, Voltage 12mA Hall Effect, Open Loop - 10µs AC/DC 150A - Tray - DC ~ 100kHz -10°C ~ 80°C Through Hole - 1 Module Bidirectional -
LA200-P LA200-P LEM USA Inc. SENSOR CURRENT HALL 200A AC/DC In magazzino658 pcs ±0.15% ±12V ~ 15V Ratiometric, Current 16mA Hall Effect, Closed Loop ±0.40% 1µs AC/DC 200A - Bulk LA DC ~ 100kHz -40°C ~ 85°C Through Hole - 1 Module Bidirectional -
S23P50/100D15 S23P50/100D15 Tamura SENSOR CURRENT HALL 50A AC/DC In magazzino4067 pcs ±0.15% ±12V ~ 15V Ratiometric, Current 25mA Hall Effect, Closed Loop ±0.25% 0.5µs AC/DC 50A - Bulk S23PXXXD15 DC ~ 100kHz -40°C ~ 85°C Through Hole - 1 Module Bidirectional -
ACS37002KMABTR-050B5 ACS37002KMABTR-050B5 Allegro MicroSystems 400KHZ 1% ACCURACY 4.8KV ISOL In magazzino10271 pcs ±0.75% 4.5V ~ 5.5V Ratiometric, Voltage 18mA Hall Effect ±1.75% 2.5µs AC/DC 50A ACS370 Tape & Reel (TR) ACS37002 400kHz -40°C ~ 125°C (TA) Surface Mount 40mV/A 1 16-SOIC (0.295", 7.50mm Width) Bidirectional 16-SOIC
MLX91206LDC-CAL-002-RE MLX91206LDC-CAL-002-RE Melexis Technologies NV SENSOR CURRENT HALL 10MT AC/DC In magazzino5430 pcs ±0.5% 5V Ratiometric, Voltage or PWM (Selectable) 12mA Hall Effect, Open Loop ±1% 8µs AC/DC 10mT MLX91206 Tape & Reel (TR) Triaxis® DC ~ 90kHz -40°C ~ 150°C Surface Mount 380mV/mT 1 8-SOIC (0.154', 3.90mm Width) Bidirectional 8-SOIC
CSNP661 CSNP661 Honeywell Sensing and Productivity Solutions SENSOR CURRENT HALL 90A AC/DC In magazzino524 pcs - ±12V ~ 15V Ratiometric, Current 10mA Hall Effect, Closed Loop ±0.5% 0.5µs AC/DC 90A - Bulk CSN - -40°C ~ 85°C Through Hole - 1 Module, Single Pass Through Bidirectional -
CAS 25-NP CAS 25-NP LEM USA Inc. SENSOR CURRENT FLUX 25A AC/DC In magazzino3855 pcs ±1% 4.75V ~ 5.25V Ratiometric, Voltage 20mA Flux Gate, Closed Loop ±0.8% 0.3µs AC/DC 25A - Tray CAS 300kHz -40°C ~ 85°C Through Hole 25mV/A 1 Module Bidirectional -
ACS724LMATR-30AB-T ACS724LMATR-30AB-T Allegro MicroSystems SENSOR CURRENT HALL 30A 16SOIC In magazzino12191 pcs ±1.5% 4.5V ~ 5.5V Ratiometric, Voltage 14mA Hall Effect, Differential ±1.5% 4µs AC/DC 30A ACS724 Tape & Reel (TR) Automotive, AEC-Q100 DC ~ 120kHz -20°C ~ 85°C Surface Mount 66mV/A 1 16-SOIC (0.295", 7.50mm Width) Bidirectional 16-SOIC
CSNF161 CSNF161 Honeywell Sensing and Productivity Solutions SENSOR CURRENT HALL 150A AC/DC In magazzino702 pcs - ±12V ~ 15V Ratiometric, Current 10mA Hall Effect, Closed Loop ±0.5% 0.5µs AC/DC 150A - Bulk CSN - -40°C ~ 85°C Through Hole - 1 Module, Single Pass Through Bidirectional -
ACS723KMATR-20AB-T ACS723KMATR-20AB-T Allegro MicroSystems SENSOR CURRENT HALL 20A AC/DC In magazzino11739 pcs ±1% 4.5V ~ 5.5V Ratiometric, Voltage 14mA Hall Effect, Open Loop ±2% 5µs AC/DC 20A ACS723 Tape & Reel (TR) - DC ~ 80kHz -40°C ~ 125°C Surface Mount 100mV/A 1 16-SOIC (0.295", 7.50mm Width) Bidirectional 16-SOIC
L03S500D15WM L03S500D15WM Tamura SENSOR In magazzino5440 pcs ±1% 15V Ratiometric, Voltage 20mA Hall Effect, Open Loop - 10µs AC/DC 500A - Tray L03S DC ~ 100kHz -10°C ~ 80°C Chassis Mount - 1 Module Bidirectional -
ACS723LLCTR-05AB-T ACS723LLCTR-05AB-T Allegro MicroSystems SENSOR CURRENT HALL 5A AC/DC In magazzino14949 pcs ±1% 5V Ratiometric, Voltage 14mA Hall Effect, Open Loop ±3% 5µs AC/DC 5A ACS723 Tape & Reel (TR) - DC ~ 80kHz -40°C ~ 150°C Surface Mount 400mV/A 1 8-SOIC (0.154', 3.90mm Width) Bidirectional 8-SOIC
ACS781KLRTR-150U-T ACS781KLRTR-150U-T Allegro MicroSystems SENSOR CUR HALL 100A 7POWERSMD In magazzino9191 pcs ±1% 3V ~ 3.6V Ratiometric, Voltage 15mA Hall Effect, Differential ±0.8% 3.6µs DC 100A ACS781 Tape & Reel (TR) Automotive, AEC-Q100 DC ~ 120kHz -40°C ~ 125°C Surface Mount 8.8mV/A 1 7-PowerSMD Module Unidirectional 7-PSOF
L03S200D15WM L03S200D15WM Tamura SENSOR In magazzino4970 pcs ±1% 15V Ratiometric, Voltage 20mA Hall Effect, Open Loop - 10µs AC/DC 200A - Tray L03S DC ~ 100kHz -10°C ~ 80°C Chassis Mount - 1 Module Bidirectional -
CASR 50-NP CASR 50-NP LEM USA Inc. SENSOR CURRENT FLUX 50A AC/DC In magazzino3105 pcs ±1% 4.75V ~ 5.25V Ratiometric, Voltage 20mA Flux Gate, Closed Loop ±0.8% 0.3µs AC/DC 50A - Tray CASR 300kHz -40°C ~ 85°C Through Hole 12.5mV/A 1 Module Bidirectional -
HAL 400-S HAL 400-S LEM USA Inc. SENSOR CURRENT HALL 400A AC/DC In magazzino668 pcs ±0.5% ±15V Voltage 25mA Hall Effect, Open Loop ±1% 3µs AC/DC 400A - Bulk HAL DC ~ 50kHz -25°C ~ 85°C Panel Mount - 1 Module Bidirectional -
CSLA1CD CSLA1CD Honeywell Sensing and Productivity Solutions SENSOR CURRENT HALL 57A AC/DC In magazzino4120 pcs - 8V ~ 16V Ratiometric, Voltage 19mA Hall Effect, Open Loop - 3µs AC/DC 57A CSLA1 Bulk CSLA - -25°C ~ 85°C Through Hole 49.6mV/N 1 Module, Single Pass Through Bidirectional -
ACS723LLCTR-10AU-T ACS723LLCTR-10AU-T Allegro MicroSystems SENSOR CURRENT HALL 10A DC In magazzino10856 pcs ±1% 5V Ratiometric, Voltage 14mA Hall Effect, Open Loop ±3% 5µs DC 10A ACS723 Tape & Reel (TR) - DC ~ 80kHz -40°C ~ 150°C Surface Mount 400mV/A 1 8-SOIC (0.154", 3.90mm Width) Unidirectional 8-SOIC
12345679
0 RFQ
Carrello della spesa (0 Items)
È vuoto.
Confronta l'elenco (0 Items)
È vuoto.
Feedback

Il tuo feedback è importante!In Allelco, apprezziamo l'esperienza dell'utente e ci impegniamo a migliorarla costantemente.
Per favore condividi i tuoi commenti con noi tramite il nostro modulo di feedback e risponderemo prontamente.
Grazie per aver scelto Allelco.

Soggetto
E-mail
Note / Commenti
Codice di verifica
Trascinare o fare clic per caricare il file
Caricare un file
Tipi: .xls, .xlsx, .doc, .docx, .jpg, .png e .pdf.Dimensione del file max
: 10 MB