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| PartNumber | 18121000001 | 1812100000 | 1812-102J |
| Description | Cartridge Fuses | Cartridge Fuses | Fixed Inductors 1.0uH 5% |
| Manufacturer | Littelfuse | Littelfuse | API Delevan |
| Product Category | Cartridge Fuses | Cartridge Fuses | Fixed Inductors |
| RoHS | Y | N | N |
| Series | 181 | 181 | 1812/R |
| Product | Ceramic Fuse | Ceramic Fuse | Fixed Inductors |
| Current Rating | 10 A | 10 A | - |
| Fuse Type | Time Delay / Slow Blow | Time Delay / Slow Blow | - |
| Fuse Size / Group | 5 mm x 20 mm | 5 mm x 20 mm | - |
| Voltage Rating AC | 250 VAC | 250 VAC | - |
| Interrupt Rating | 1.5 kA at 250 V | - | - |
| Mounting Style | Holder / Clip | Holder / Clip | PCB Mount |
| Termination Style | Clip | Clip | SMD/SMT |
| Minimum Operating Temperature | - 40 C | - 40 C | - 55 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 125 C |
| Body Style | Cylindrical | Cylindrical | - |
| Diameter | 5.2 mm | - | - |
| Indicator Style | Without Indicator | Without Indicator | - |
| Length | 20 mm | - | 4.83 mm |
| Brand | Littelfuse | Littelfuse | API Delevan |
| Product Type | Ceramic Fuse | Ceramic Fuse | Fixed Inductors |
| Factory Pack Quantity | 1000 | - | 500 |
| Subcategory | Fuses | Fuses | Inductors, Chokes & Coils |
| Unit Weight | 0.038801 oz | 0.052911 oz | 0.000952 oz |
| Shielding | - | - | Unshielded |
| Inductance | - | - | 1 uH |
| Tolerance | - | - | 5 % |
| Maximum DC Current | - | - | 634 mA |
| Maximum DC Resistance | - | - | 500 mOhms |
| Self Resonant Frequency | - | - | 100 MHz |
| Q Minimum | - | - | 50 |
| Test Frequency | - | - | 7.9 MHz |
| Termination | - | - | - |
| Package / Case | - | - | 1812 (4532 metric) |
| Width | - | - | 3.4 mm |
| Height | - | - | 3.4 mm |
| Application | - | - | RF |
| Packaging | - | - | Reel |
| Core Material | - | - | Ferrite |
| Case Code in | - | - | 1812 |
| Case Code mm | - | - | 4532 |
| Part # Aliases | - | - | 1812-102J T500 |