| PartNumber | HM78D-128821KLFTR | HM78D-128820MLFTR | HM78D-1288R2MLFTR |
| Description | Coupled Inductors 820uH 10% SHLD SM COUPLED IND | Coupled Inductors 82uH 20% SHLD SM COUPLED IND | Coupled Inductors 8.2uH 20% SHLD SM COUPLED IND |
| Manufacturer | TT Electronics | TT Electronics | TT Electronics |
| Product Category | Coupled Inductors | Coupled Inductors | Coupled Inductors |
| Series | HM78D | HM78D | HM78D |
| Inductance Parallel | 820 uH | 82 uH | 8.2 uH |
| Inductance Series | 4 mH | 328 uH | 32.8 uH |
| Tolerance | 10 % | 20 % | 20 % |
| Maximum DC Current | 1.2 A | 3.8 A | 10.8 A |
| Maximum DC Resistance | 1.275 Ohms | 140 mOhms | 25 mOhms |
| Length | 12.5 mm | 12.5 mm | 12.5 mm |
| Width | 12.5 mm | 12.5 mm | 12.5 mm |
| Height | 8.05 mm | 8.05 mm | 8.05 mm |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Reel | Reel |
| Product | Coupled Inductors | Coupled Inductors | Coupled Inductors |
| Termination Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Type | Surface Mount Coupled Inductor | Surface Mount Coupled Inductor | Surface Mount Coupled Inductor |
| Brand | BI Technologies / TT Electronics | BI Technologies / TT Electronics | BI Technologies / TT Electronics |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Product Type | Coupled Inductors | Coupled Inductors | Coupled Inductors |
| Factory Pack Quantity | 500 | 500 | 500 |
| Subcategory | Inductors, Chokes & Coils | Inductors, Chokes & Coils | Inductors, Chokes & Coils |
| RoHS | - | - | Y |