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| Part Number | RHEF400 | RKEF400 | RHEF900 | RHEF700 | RHEF800 | RHEF450 | RHEF600 | RGEF400 | RHE400 | RHEF100 | RHEF1400 | RHEF200 | RHEF300 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Obsolete | Active | Active | Active | Active |
| Type | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric |
| Voltage - Max | 16V | 60V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 30V | 16V | 16V | 16V |
| Current - Max | 100 A | 40 A | 100 A | 100 A | 100 A | 100 A | 100 A | 100 A | 100 A | 40 A | 100 A | 100 A | 100 A |
| Current - Hold (Ih) (Max) | 4 A | 4 A | 9 A | 7 A | 8 A | 4.5 A | 6 A | 4 A | 4 A | 1 A | 14 A | 2 A | 3 A |
| Current - Trip (It) | 7.5 A | 8 A | 16.5 A | 13 A | 15 A | 7.8 A | 10.8 A | 6.8 A | 7 A | 1.8 A | 27 A | 3.8 A | 6 A |
| Time to Trip | 5 s | 24 s | 10 s | 7 s | 8 s | 3 s | 5 s | 1.7 s | 8 s | 5.2 s | 13 s | 4.3 s | 5 s |
| Resistance - Initial (Ri) (Min) | 24 mOhms | 14 mOhms | 7.4 mOhms | 10 mOhms | 8 mOhms | 22 mOhms | 13 mOhms | 21 mOhms | 18 mOhms | 180 mOhms | 3 mOhms | 45 mOhms | 33 mOhms |
| Resistance - Post Trip (R1) (Max) | 60 mOhms | 60 mOhms | 17 mOhms | 25 mOhms | 20 mOhms | 54 mOhms | 32 mOhms | 60 mOhms | 44 mOhms | 430 mOhms | 9 mOhms | 110 mOhms | 79 mOhms |
| Resistance - 25°C (Typ) | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 85°C | - | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Ratings | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc |
| Size / Dimension | 0.394" L x 0.118" W (10.00mm x 3.00mm) | 0.827" L x 0.118" W (21.00mm x 3.00mm) | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.551" L x 0.118" W (14.00mm x 3.00mm) | 0.650" L x 0.118" W (16.50mm x 3.00mm) | 0.409" L x 0.118" W (10.40mm x 3.00mm) | 0.441" L x 0.118" W (11.20mm x 3.00mm) | 0.331" L x 0.098" W (8.40mm x 2.50mm) | 0.449" L x 0.118" W (11.40mm x 3.00mm) | 0.382" Dia x 0.118" T (9.70mm x 3.00mm) | 0.925" L x 0.142" W (23.50mm x 3.60mm) | 0.370" Dia x 0.122" T (9.40mm x 3.10mm) | 0.350" Dia x 0.118" T (8.90mm x 3.00mm) |
| Height - Seated (Max) | 0.591" (15.00mm) | 0.980" (24.90mm) | 1.012" (25.70mm) | 0.862" (21.90mm) | 0.886" (22.50mm) | 0.614" (15.60mm) | 0.827" (21.00mm) | 0.504" (12.80mm) | 0.709" (18.00mm) | 0.535" (13.60mm) | 1.126" (28.60mm) | 0.567" (14.40mm) | 0.543" (13.80mm) |
| Thickness (Max) | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Lead Spacing | 0.199" (5.05mm) | 0.400" (10.15mm) | 0.199" (5.05mm) | 0.199" (5.05mm) | 0.199" (5.05mm) | 0.199" (5.05mm) | 0.199" (5.05mm) | 0.199" (5.05mm) | 0.199" (5.05mm) | 0.199" (5.05mm) | 0.400" (10.15mm) | 0.199" (5.05mm) | 0.199" (5.05mm) |
