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| Part Number | MF-R300-0-99 | MF-R400-0-99 | MF-R500-0-99 | MF-R600-0-99 | MF-R700-0-99 | MF-R800-0-99 | MF-R900-0-99 | MF-R300-2-99 |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Type | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric |
| Voltage - Max | 30V | 30V | 30V | 30V | 30V | 30V | 30V | 30V |
| Current - Max | 40 A | 40 A | 40 A | 40 A | 40 A | 40 A | 40 A | 40 A |
| Current - Hold (Ih) (Max) | 3 A | 4 A | 5 A | 6 A | 7 A | 8 A | 9 A | 3 A |
| Current - Trip (It) | 6 A | 8 A | 10 A | 12 A | 14 A | 16 A | 18 A | 6 A |
| Time to Trip | 10.8 s | 12.7 s | 14.5 s | 16 s | 17.5 s | 18.8 s | 20 s | 10.8 s |
| Resistance - Initial (Ri) (Min) | 20 mOhms | 10 mOhms | 10 mOhms | 5 mOhms | 5 mOhms | 5 mOhms | 5 mOhms | 20 mOhms |
| Resistance - Post Trip (R1) (Max) | 80 mOhms | 50 mOhms | 50 mOhms | 40 mOhms | 30 mOhms | 30 mOhms | 20 mOhms | 80 mOhms |
| Resistance - 25°C (Typ) | - | - | - | - | - | - | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -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 | Through Hole | Through Hole |
| Package / Case | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc |
| Size / Dimension | 0.472" L x 0.118" W (12.00mm x 3.00mm) | 0.567" L x 0.118" W (14.40mm x 3.00mm) | 0.685" L x 0.118" W (17.40mm x 3.00mm) | 0.760" L x 0.118" W (19.30mm x 3.00mm) | 0.870" L x 0.118" W (22.10mm x 3.00mm) | 0.953" L x 0.118" W (24.20mm x 3.00mm) | 0.953" L x 0.118" W (24.20mm x 3.00mm) | 0.472" L x 0.118" W (12.00mm x 3.00mm) |
| Height - Seated (Max) | 0.720" (18.30mm) | 0.976" (24.80mm) | 0.980" (24.90mm) | 1.256" (31.90mm) | 1.173" (29.80mm) | 1.295" (32.90mm) | 1.295" (32.90mm) | 0.720" (18.30mm) |
| Thickness (Max) | - | - | - | - | - | - | - | - |
| Lead Spacing | 0.201" (5.10mm) | 0.201" (5.10mm) | 0.402" (10.20mm) | 0.402" (10.20mm) | 0.402" (10.20mm) | 0.402" (10.20mm) | 0.402" (10.20mm) | 0.201" (5.10mm) |
