0278.400V Littelfuse Inc, 0278.400V Datasheet - Page 2

• Manufacturer Part Number: 0278.400V
• Description: FUSE .400A 125V FAST MICRO LONG
• Manufacturer: Littelfuse Inc
• Series: MICRO™ 278r

Specifications of 0278.400V

• Fuse Type: Fast Acting
• Voltage - Rated: 125VAC, 125VDC
• Current: 400mA
• Package / Case: Radial
• Size / Dimension: 0.235" Dia x 0.287" L (5.97mm x 7.30mm)
• Mounting Type: Through Hole
• Operating Temperature: -55°C ~ 125°C
• Dc Cold Resistance: 0.227 Ohm
• Melting I²t: 0.0251
• Fuse Current: 400mA
• Leaded Process Compatible: Yes
• Current Rating: 0.4 Amp
• Voltage Rating: 125 Volts
• Fuse Size / Group: Micro
• Termination Style: Solder Pin
• Body Material: Thermoplastic
• Dimensions: 5.97 mm L x 7.3 mm W
• Product: Plug Fuse
• Interrupt Rating: 10 KAmps at 125 VoltsAC/DC
• Operating Temperature Range: - 55 C to + 125 C
• Resistance: 0.227 Ohms
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Color: -
• Lead Free Status / Rohs Status: Details
• Other names: 278.400; V278.400

272/273/274/278/279 Series
Temperature Rerating Curve
Soldering Parameters - Wave Soldering
300
280
260
2 0
220
200
180
160
1 0
120
100
80
60
20
0
ime (Seconds)
0
MICRO™ > Very Fast-Acting > 272/273/274/278/279 Series
Preheat ime
Introduction to Circuit Protection
Introduction to Circuit Protection
Dwell ime
Cooling ime
Radial Lead Fuses
Revised: January 7, 2009
132
Recommended Process Parameters:
Recommended Hand-Solder Parameters:
Note: These devices are not recommended for IR or
Convection Reflow process.
Preheat:
(Depends on Flux Activation Temperature)
Solder Pot Temperature:
Solder Dwell Time:
Transientology
Average Time Current Curves
Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.
Temperature Minimum:
Temperature Maximum:
Preheat Time:
0.001
0.01
0.005
100
0.1
10
1
Wave Parameter
0.01
Please refer to www.littelfuse.com/series/272.html, /273.html, /274.html,
0.1
CURRENT IN AMPERES
Specifications are subject to change without notice.
(Typical Industry Recommendation)
100
150
60-180 seconds
260
2-5 seconds
Lead-Free Recommendation
1
°
°
°
/278.html or /279.html for current information.
C
C
C Maximum
10
© 2009 Littelfuse, Inc.
100