Littelfuse PICO 305-UL913 Series - Manual (Page 2)

© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/05/14
Special Application Fuses
PICO ® 305 Series Fuses - 277V UL913 Intrinsically Safe Fuse
Product Characteristics
Dimensions
15.60±0.50
0.64
9.00±0.50
5.00+1.00
- 0.50
12.70±0.20
Average Time Current Curves
305 Series
100
10
1
0.1
0.01
0.001
0.0001
1 10 1000 0.01
TIME IN SECONDS
CURRENT IN AMPERES
100
0.1
.100A .080A .050A .250A .200A .160A .750A .500A
Thermal Shock
Withstands 5 cycles of –55°C to
125°C
Vibration Per MIL-STD-202F
Insulation Resistance
(After Opening) Greater than 10,000 ohms
(at twice rated DC voltage)
Soldering Parameters
Part Numbering System
0305 .050 M
SERIES
AMP CODE
QuANTITY & PACkAgINg CODE
Refer to Amp Code column in the
Electrical Specifications table.
M = Bulk pack, 1000 pcs
H = Bulk pack, 100 pcs
V = Bulk pack, 5 pcs
Wave Soldering 260°C, 10 seconds max.
Operating Temperature
Current Rating Ambient Temperature
≤ 0.200 A - 40 ºC to +50 ºC
0.250 A - 40 ºC to +46 ºC
0.500 A - 40 ºC to +74 ºC
0.750 A - 40 ºC to +46 ºC
Note:
1) Any use of the 305 Series fuse outside of the ambient temperature ranges specified in
the table is subject to additional investigation.
Note:
1) Rerating depicted in this curve is in addition to the standard rerating of 25% for
continuous operation.
Temperature Rerating Curve