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| Part Number | RHE450 | RHEF450 | RHE750 | RHE400 |
|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Obsolete | Active | Obsolete | Obsolete |
| Type | Polymeric | Polymeric | Polymeric | Polymeric |
| Voltage - Max | 16V | 16V | 16V | 16V |
| Current - Max | 100 A | 100 A | 100 A | 100 A |
| Current - Hold (Ih) (Max) | 4.5 A | 4.5 A | 7.5 A | 4 A |
| Current - Trip (It) | 7.8 A | 7.8 A | 13.1 A | 7 A |
| Time to Trip | 3 s | 3 s | 7 s | 8 s |
| Resistance - Initial (Ri) (Min) | 22 mOhms | 22 mOhms | 9.4 mOhms | 18 mOhms |
| Resistance - Post Trip (R1) (Max) | 3.6 Ohms | 54 mOhms | 4.5 Ohms | 44 mOhms |
| Resistance - 25°C (Typ) | - | - | - | - |
| Operating Temperature | - | -40°C ~ 125°C | - | - |
| Ratings | - | - | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc |
| Size / Dimension | 0.409" L x 0.118" W (10.40mm x 3.00mm) | 0.409" L x 0.118" W (10.40mm x 3.00mm) | 0.551" L x 0.120" W (14.00mm x 3.00mm) | 0.449" L x 0.118" W (11.40mm x 3.00mm) |
| Height - Seated (Max) | 0.614" (15.60mm) | 0.614" (15.60mm) | 0.925" (23.50mm) | 0.709" (18.00mm) |
| Thickness (Max) | - | - | - | - |
| Lead Spacing | 0.199" (5.05mm) | 0.199" (5.05mm) | 0.199" (5.05mm) | 0.199" (5.05mm) |
