451/453

Part: 451/453 Series Fuse — Littelfuse

Type: Very Fast-Acting Surface Mount Fuse

Description: A very small, Wire-in-Air (WIA) square shape surface mount fuse designed for secondary side circuit over-current protection, offering a wide current rating from 0.062 A to 20 A and operating up to 125 V.

Operating Conditions:

• Supply voltage: Up to 125 V
• Operating temperature: -55 to 125 °C
• Current rating: 0.062 A to 20 A

Absolute Maximum Ratings:

• Max supply voltage: 125 V
• Max continuous current: 20 A
• Max junction/storage temperature: 125 °C

Key Specs:

• Ampere Rating: 0.062 A to 20 A
• Max Voltage Rating: 125 V (for 0.062 A - 10 A), 65 V (for 12 A - 20 A)
• Interrupting Rating: 50 A @125VAC/VDC (for 0.062 A - 10 A), 150 A @65VDC (for 12 A - 20 A)
• Opening Time (100% of rating): 4 hours, Minimum
• Opening Time (200% of rating): 5 sec., Maximum (for 0.062 A - 10 A)
• Nominal Cold Resistance: 0.00244 Ω to 5.5000 Ω (at 10% rated current, 25°C)
• Nominal Melting I²t: 0.00019 A²sec to 154 A²sec (calculated at 8ms)
• Moisture Sensitivity Level: Level 1, J-STD-020

Features:

• Very fast-acting
• Small size
• Wide range of current rating available (0.062A to 20A)
• Wide operating temperature range
• RoHS compliant and Halogen Free

Applications:

• Notebook PC
• LCD/PDP TV
• Power supply
• Networking
• PC server
• Battery charging circuit protection
• Industrial equipment
• White goods

Package:

• Surface Mount (square shape)

• Very fast-acting
• Small size
• Wide range of current rating available ( 0.062A to 20A)
• Wide operating temperature range

• Notebook PC
• LCD/PDP TV
• LCD monitor
• LCD/PDP panel
• LCD backlight inverter
• Portable DVD player
• Power supply
• Networking
• PC server
• Cooling fan system
• Low temperature rerating
• RoHS compliant and Halogen Free
• Storage system
• Telecom system
• Wireless basestation
• White goods
• Game console
• Office Automation equipment
• Battery charging circuit protection
• Industrial equipment