LITTELFUSE 446

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Surface Mount Fuses
350 Volt Surface Mount Fuse
EBF Fuse Fast-Acting Type 446/447 Series
®
®
• Ideal for use in electronic lighting ballast, power supply and power
inverter applications.
• Rated for use in 125, 250, 277 and 350 VAC circuits.
• Based on the proven reliability of the automotive MINI® Fuse; available from 2 through 10 amperes.
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
100%
200%
350V
Recommended
Pad Layout:
447 Mounting
Holes:
1.44
(.057")
PAT
LF
602
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature: –40°C to +125°C.
PHYSICAL SPECIFICATIONS:
Materials: Body: Plastic Body
Reference Dimensions
(Inches):
A6 04
Opening
Time
4 hours, Minimum
0.15 sec. Min., 5 Sec. Max
AGENCY APPROVALS: Recognized under the Components
Program of Underwriters Laboratories and CSA Certified. Approved by
METI to 5 amperes.
AGENCY FILE NUMBERS: UL: E71611, CSA LR 29862.
INTERRUPTING RATINGS: 100 amperes at 350 VAC, 50 amperes
at 125 VDC and 450 amperes at 60VDC
4.03
(.159")
3.81
(.150")
5.91
(.233")
8.81
(.347")
10.92
(.430")
1.52
(.060")
1.27
(.050") Dia
10.11
(.398")
Terminations: Tin-Lead (95/5) plated Zn, Ni barrier
Soldering Parameters:
8.76
(.345")
1.50 (.059") MAX
PACKAGING SPECIFICATIONS:
24mm Tape and Reel per EIA-RS481
(Equivalent to IEC 286, part 3); 800 fuses per reel,
add packaging suffix, ZR.
Shelf Life: Up to 1 year in Factory sealed packaging.
7
0.81
(.032")
2A
3A
4A
5A
7 1/2A
10A
1000
Nominal
Cold
Resistance(Ω)
0.0560
0.0340
0.0240
0.0180
0.0110
0.0073
EBF Fuse Fast-Acting Type 447 Series
•
3.2 (.126")
Average Time Current Curves
Nominal
Melting I2t
(A2sec)
2.8
9.4
17
25
68
93
®
®
Through-hole version of the 446 series.
100
TIME IN SECONDS
Catalog
Number
0446 002.
0446 003.
0446 004.
0446 005.
0446 07.5
0446 010.
Voltage
Rating
(VAC)
350
350
350
350
350
350
(.032")
0.81
(.295")
7.49
ORDERING INFORMATION:
Ampere
Rating
(A)
2
3
4
5
7.5
10
3.2
5.59 (.126")
(.220")
SURFACE MOUNT
FUSES
Reflow Solder — 235°C, 5 seconds maximum.
No-clean process recommended.
Wave Solder — Not recommended.
Non-plated terminal surfaces may not meet
MIL-STD-202, Method 208.
10
1
ELECTRICAL CHARACTERISTICS: Same as 446 Series.
Dimensions: Contact Littelfuse for specifications.
Soldering Parameters: Contact Littelfuse for soldering parameters.
Inside terminal face of each lead is non-plated zinc. Non-plated zinc
terminal faces may not meet MIL-STD-202, method 208. To ensure that
the fuse is acceptable for the application, appropriate application testing
should be performed.
Packaging Specifications: Bulk Pack (4,000 pieces per pack)
0.1
0.01
w w w. l i t t e l f u s e . c o m
0.1
1
10
100
CURRENT IN AMPERES
1000
277