36
SURFACE MOUNT FUSES
SUBMINIATURE SURFACE MOUNT
PICO
®
SMF Very Fast-Acting Type Fuse 459 Series
The PICO
®
SMF Very Fast-Acting Fuse provides high per-
for mance in a rectangular package suitable for reflow and
wave soldering methods.
ELECTRICAL CHARACTERISTICS:
% of Ampere Opening
Rating Time
100% 4 hours, Minimum
200% 1 second, Maximum
300% 0.1 second, Maximum
AGENCY APPROVALS: Recognized under the
Components Program of Underwriters Laboratories and
Cer tified by CSA. Approved by METI 1 through 5 amperes.
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.
INTERRUPTING RATINGS:
50 amperes at 125 VAC.
300 amperes at 125 VDC.
ENVIRONMENTAL SPECIFICATIONS:
Operating T emperature: –55°C to 125°C.
Shock: MIL-STD-202, Method 213, Test Condition I
(100 G’s peak for 6 milliseconds).
Vibration: MIL-STD-202, Method 201 (10 –55 Hz,
.06 in. total excursion).
Salt Spray: MIL-STD-202, Method 101, Test Condition B
(48 hrs.).
Insulation Resistance (After Opening): MIL-STD-202,
Method 302, (10,000 ohms minimum at 100 volts).
Resistance to Soldering Heat: MIL-STD-202,
Method 210, Test Condition F (10 sec. at 260°C).
Thermal Shock: MIL-STD-202, Method 107,
Test Condition B (–65 to 125°C).
Moisture Resistance: MIL-STD-202, Method 106, High
Humidity (90-98 RH), Heat (65°).
PHYSICAL SPECIFICATIONS:
Materials: Body: Molded Thermoplastic
Ter minations: Tin-Lead Plated Copper
Soldering Parameters:
Wave Solder — 260°C, 10 seconds maximum
Reflow Solder — 260°C, 30 seconds maximum
Solderability: MIL-STD-202, Method 208.
PACKAGING SPECIFICATIONS: 12mm Tape and Reel
per EIA-RS481 (IEC 286, par t 3); 500 per reel, add
packaging suffix, UR.
PATENTED
ORDERING INFORMATION:
Nominal Nominal
Catalog Ampere Voltage Resistance Melting I
2
t
Number Rating Rating Cold Ohms A
2
Sec.
R459.062 1/16 125 7.0 0.000075
R459.125 1/8 125 1.70 0.00163
R459.250 1/4 125 0.665 0.0106
R459.375 3/8 125 0.395 0.0254
R459.500 1/2 125 0.280 0.0546
R459.750 3/4 125 0.175 0.155
R459 001 1 125 0.125 0.281
R459 01.5 1
1
/
2
125 0.0800 0.650
R459 002 2 125 0.0468 0.421
R459 02.5 2
1
/
2
125 0.0350 0.721
R459 003 3 125 0.0290 1.23
R459 03.5 3
1
/
2
125 0.0240 1.65
R459 004 4 125 0.0200 2.35
R459 005 5 125 0.0155 3.90
100
10
1
0.1
0.01
0.001
1/16A
0.05 0.1 1 10 100
1/8A
1/4A
3/8A
1/2A
3/4A
1A
1 1/2A
2A
2 1/2A
3A
3 1/2A
4A
5A
TIME IN SECONDS
CURRENT IN AMPERES
Average Time Current Curves
.170"
5 A 1 2 5 V
L
F
4 5 9
B 3
®
®
.120"
.117"
.285"
REF.
.325"
.065"
.195"
.051"
REF.
.080"
RECOMMENDED
PAD LAYOUT
