Fuse 259 Datasheet

Special Application Fuses
PICO® 259 Series Safe-T-Plus Fuse for Hazardous Locations
PICO® 259 Series Safe-T-Plus Fuse
RoHS
Description
The Safe-T-Plus 259 Series offers a range of encapsulated
fuses designed to enable greater safety for operating
electronic equipment within potentially explosive
environments. Originally designed to serve the needs of gas
plants, petrochemical and processing industries, these fuses
are certitifed for use within intrinsically safe apparatus with
ATEX and IECEx certifications.
The fuse design and its encapsulant are suitable for use in
intrinsically safe appartatus and associated apparatus for
voltage not exceeding 125V rms (190V peak).
Agency Approvals
Agency
Features
Agency File Number
Ampere Range
Baseefa02ATEX0071U
0.062A - 5A
IECEx BAS 10.0098U
0.062A - 5A
E10480
0.062A - 5A
• Encapsulated and sealed
(1mm minimum)
• 0.062A - 5A range options • RoHS compliant
• Designed to operate
within environments
where there is danger of
gas explosion from faulty
circuits
Electrical Characteristics for Series
% of Ampere
Rating
Opening Time
100%
4 Hours, Minimum
200%
5 Seconds, Maximum
• ATEX and IECEx certified
components
Applications
• Testing, measuring or
processing electronic and
electrical equipment
Reference Standards
Additional Information
Agency
Standards
ATEX
EN 60079-0, EN 60079-11
IECEx
IEC 60079-0, IEC 60079-11
Datasheet
Samples
Resources
Electrical Specifications by Items
Ampere
Rating
(A)
Amp
Code
0.062
.062
Interrupting
Rating
Nominal
Melting
I2t (A2 Sec.)
0.00011
Minimum Cold Minimum Cold
Resistance at
Resistance at
-20°C (Ohms)
-40°C (Ohms)
4.89
4.39
Agency Approvals
Nominal Cold
Resistance at
25°C (Ohms)
7.00
x
x
x
0.125
.125
0.0012
1.35
1.26
1.70
x
x
x
0.250
.250
0.0095
0.51
0.48
0.665
x
x
x
0.375
.375
0.500
.500
0.750
50A @ 125 VAC
0.025
0.32
0.29
0.395
x
x
x
300A @ 125 VDC
0.0598
0.24
0.22
0.302
x
x
x
.750
0.153
0.14
0.12
0.175
x
x
x
1.00
001.
0.256
0.10
0.07
0.128
x
x
x
3.00
003.
1.27
0.03
0.01
0.03
x
x
x
4.14
0.01
0.005
0.0158
x
x
x
5.00
005.
50A @ 125 VAC
300A @ 63 VDC
Schedule of limitations:
1) The fuse must be so mounted that creepage and clearance distances aren’t impaired in any way.
2) The fuse is suitable for use in intrinsically safe equipment for voltages not exceeding 190V peak.
3) Maximum surface temperature rise at 170% rated current: ≤750mA=40ºC, 1A=55ºC, 3A=118ºC and 5A=135ºC.
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 01/04/16
Special Application Fuses
PICO® 259 Series Safe-T-Plus Fuse for Hazardous Locations
259 Series
Operating temperature depends on fuse
rating and max. allowed fuse surface
temperature. (Consider re-rating)
Thermal Shock
Withstands 5 cycles of – 55°C to 125°C
Vibration
Per MIL-STD-202, Method 201
Insulation
Resistance
(After Opening)
Greater than 10,000 ohms
100
5A
Operating
Temperature
3.15 A
Body : Polyamide
Terminals - Tin Plated Copper Alloy
Max. operating temperature of materials 130°C
.250 A
.375 A
.500 A
.750 A
1A
Materials
.062 A
Average Time Current Curves
.125 A
Product Characteristics
TIME IN SECONDS
10
Temperature Re-rating Curve
1
0.1
0.01
0.001
0.1
100
10
CURRENT IN AMPERES
1
1000
Part Numbering System
0259.062M
Note:
1. Re-rating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
Soldering Parameters
Recommended Process Parameters:
Wave Parameter
Lead-Free Recommendation
Preheat:
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
Temperature Minimum:
100°C
Temperature Maximum:
Preheat Time:
150°C
60-180 seconds
Solder Pot Temperature:
260°C Maximum
Solder Dwell Time:
2-5 seconds
SERIES
AMP Code
The dot is poisitioned before the
Packaging Suffix with whole ratings
and within the numbering sequence
for fractional ratings. Refer to Amp
Code column in the Electrical Specifications table.
Example:
1 amp product is
0259001.M
(.062 amp product shown).
PACKAGING Code
M = Bulk pack, 1000 pcs
T = Bulk pack, 10 pcs
Dimensions
(.512")
13mm
Recommended Hand Soldering Parameters:
Solder Iron Temperature: 350°C +/- 5°C
Heating Time: 5 seconds max.
Note: These devices are not recommended for IR or
Convection Reflow process
(.025")
.635mm
(.315")
8mm
(.197")
5mm
(.394")
10mm
Packaging
Packaging Option
Packaging Specification
Quantity
Quantity & Packaging Code
Bulk
N/A
1000
Bulk
N/A
10
M = Bulk 1000 pieces, T = Bulk 10 pieces
Please refer to available quantities above in “Part Numbering System”
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/04/16