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| PartNumber | EFB0405HD | EFB0405HA | EFB0405HD-F00 |
| Description | DC Fans DC Axial Fan, 40x20mm, 5VDC | DC Fans DC Axial Fan, 40x10mm, 5VDC | DC Fans DC Axial Fan, 40x20mm, 5VDC, Tachometer |
| Manufacturer | Delta Electronics | Delta Electronics | Delta Electronics |
| Product Category | DC Fans | DC Fans | DC Fans |
| RoHS | Y | Y | Y |
| Product | DC Brushless Fans | DC Brushless Fans | DC Brushless Fans |
| Type | Axial | Axial | Tachometer Sensor |
| Frame Dimensions mm | 40 mm L x 20 mm W x 40 mm H | 40 mm L x 10 mm W x 40 mm H | 40 mm L x 20 mm W x 40 mm H |
| Operating Supply Voltage | 5 VDC | 5 VDC | 5 VDC |
| Airflow | 8.54 CFM | 6.92 CFM | 8.54 CFM |
| Speed | 7600 RPM | 6000 RPM | 7600 RPM |
| Pressure Type | 7.6 mmAq | 3.2 mmAq | 7.6 mmAq |
| Bearing Type | Ball | Ball | Ball |
| Noise | 28.5 dBA | 28.5 dBA | 28.5 dBA |
| Power Rating | 1.25 W | 650 mW | 1.25 W |
| Housing Material | Plastic | Plastic | Plastic |
| Termination Style | Wire Leads | Wire Leads | Wire Leads |
| Series | EFB | EFB | EFB |
| Packaging | Bulk | Bulk | Bulk |
| Height | 40 mm | 40 mm | 40 mm |
| Length | 40 mm | 40 mm | 40 mm |
| Size | 40 mm | 40 mm | 40 mm |
| Width | 20 mm | 10 mm | 20 mm |
| Brand | Delta Electronics | Delta Electronics | Delta Electronics |
| Current Type | DC | DC | DC |
| Product Type | DC Fans | DC Fans | DC Fans |
| Factory Pack Quantity | 336 | 640 | 336 |
| Subcategory | Fans, Blowers & Accessories | Fans, Blowers & Accessories | Fans, Blowers & Accessories |
| Unit Weight | 1.164041 oz | 0.511472 oz | 1.164041 oz |