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| Part Number | MF-RX050/72-2 | MF-RX250/72-2 | MF-RX090/72-2 | MF-RX030/72-2 | MF-RX040/72-2 | MF-RX050/72-0 |
|---|---|---|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. |
| Product Status | Active | Active | Active | Active | Active | Active |
| Type | - | Polymeric | Polymeric | - | - | Polymeric |
| Voltage - Max | 72V | 72V | 72V | 72V | 72V | 72V |
| Current - Max | 40 A | 40 A | 40 A | 40 A | 40 A | 40 A |
| Current - Hold (Ih) (Max) | 500 mA | 2.5 A | 900 mA | 300 mA | 400 mA | 500 mA |
| Current - Trip (It) | 1 A | 5 A | 1.8 A | 600 mA | 800 mA | 1 A |
| Time to Trip | 4 s | 15.6 s | 7.2 s | 3 s | 3.9 s | 4 s |
| Resistance - Initial (Ri) (Min) | - | 50 mOhms | 140 mOhms | - | - | 410 mOhms |
| Resistance - Post Trip (R1) (Max) | - | 130 mOhms | 470 mOhms | - | - | 1.17 Ohms |
| Resistance - 25°C (Typ) | - | - | - | - | - | - |
| Operating Temperature | - | -40°C ~ 85°C | -40°C ~ 85°C | - | - | -40°C ~ 85°C |
| Ratings | - | - | - | - | - | - |
| Mounting Type | 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 |
| Size / Dimension | 0.311" Dia x 0.122" W (7.90mm x 3.10mm) | 0.702" L x 0.122" W (17.84mm x 3.10mm) | 0.461" Dia x 0.122" T (11.70mm x 3.10mm) | 0.291" Dia x 0.122" W (7.40mm x 3.10mm) | 0.291" Dia x 0.122" W (7.40mm x 3.10mm) | 0.311" Dia x 0.122" T (7.90mm x 3.10mm) |
| Height - Seated (Max) | - | 0.939" (23.84mm) | 0.657" (16.70mm) | 0.528" (13.40mm) | - | 0.539" (13.70mm) |
| Thickness (Max) | - | - | - | - | - | - |
| Lead Spacing | 0.201" (5.10mm) | 0.402" (10.20mm) | 0.201" (5.10mm) | 0.201" (5.10mm) | 0.201" (5.10mm) | 0.201" (5.10mm) |
