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| Part Number | 0437.375WR | 0437.250WR | 0437.500WR | 0437001.WR | 0437008.WR |
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Package/Case | |||||
| Series | 437 | 437 | 437 | 437 | 437 |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Active | Active | Active | Active | Active |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Fuse Type | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) |
| Current Rating (Amps) | 375 mA | 250 mA | 500 mA | 1 A | 8 A |
| Voltage Rating - AC | 125 V | 125 V | 63 V | 63 V | 32 V |
| Voltage Rating - DC | 125 V | 125 V | 63 V | 63 V | 35 V |
| Response Time | Fast Blow | Fast Blow | Fast Blow | Fast Blow | Fast Blow |
| Breaking Capacity @ Rated Voltage | 50A | 50A | 50A | 50A | 50A |
| Melting I²t | 0.01 | 0.003 | 0.018 | 0.1 | 6.4 |
| Approval Agency | CSA, UR | CSA, UR | CSA, UR | CSA, UR | CSA, UR |
| Operating Temperature | -55°C ~ 150°C | -55°C ~ 150°C | -55°C ~ 150°C | -55°C ~ 150°C | -55°C ~ 150°C |
| Color | - | - | - | - | - |
| Size / Dimension | 0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm) | 0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm) | 0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm) | 0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm) | 0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm) |
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