Axial Lead & Cartridge Fuses
3AB > Fast-Acting > 505 Series
505 Series,
Lead-free 3AB, Fast-Acting Fuse
Description
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Features
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Agency Approvals
Agency
Agency File Number
Ampere Range
(&1*0,4(',.(
Applications
; !0,05(33625,%.(18(3
622.,(4! ; +$4(18(3 622.,(4
Electrical Characteristics for Series
% of Ampere
Rating
Ampere Rating
/,065(4$9,/6/
%
%
Opening Time
/,065(4$9,/6/
4(&$9,/6/
%
Amp
Code
Amp
Rating
(A)
Max
Voltage
Rating
(V)
010.
10
450
012.
12
450
20kA@450VAC
1000A@250VDC
50kA@500VAC
20kA@500VDC
016.
16
500
020.
20
500
025.
25
500
030.
30
500
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/505.html for current information.
Interrupting
Rating
30kA@500VAC
20kA@500VDC
337
Revised: January 20, 2009
Nominal
Cold
Resistance
(Ohms)
Agency Approvals
Nominal
Melting
I T (A2Sec.)
2
0.0167
91
X
X
X
0.0117
192
X
X
X
0.0073
51
X
X
0.0056
101
X
X
0.0048
145
X
X
0.0038
203
X
X
505 Series
505 Series
Electrical Characteristics Specifications by Item
Introduction
to &
Circuit
Protection
Axial Lead
Cartridge
Fuses
Transientology
3AB > Fast-Acting
> 505 Series
Temperature Rerating Curve
10A
12A
16A
20A
25A
30A
Average Time Current Curves
10000
1000
TIME IN SECONDS
100
10
1
0.1
0.01
0.001
1
10
100
1000
CURRENT IN AMPERES
Soldering Parameters - Wave Soldering
Recommended Process Parameters:
280
260
Wave Parameter
240
220
Preheat:
200
(Depends on Flux Activation Temperature)
180
160
140
120
Lead-Free Recommendation
(Typical Industry Recommendation)
Temperature Minimum:
100° C
Temperature Maximum:
Preheat Time:
150° C
60-180 seconds
100
80
60
40
Solder Pot Temperature:
260° C Maximum
Solder Dwell Time:
2-5 seconds
240
230
220
210
200
190
180
170
160
150
140
130
120
110
90
100
80
70
60
50
40
30
0
0
20
20
10
Temperature (°C) - Measured on bottom side of board
300
Recommended Hand-Solder Parameters:
Time (Seconds)
Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.
Cooling Time
Preheat Time
Dwell Time
Note: These devices are not recommended for IR or
Convection Reflow process.
505 Series
338
Revised: January 20, 2009
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/505.html for current information.
Axial Lead & Cartridge Fuses
3AB > Fast-Acting > 505 Series
Product Characteristics
Material
Terminal Strength
Solderability
Product Marking
Packaging
Body: Ceramic
Cap: Nickel–plated brass
Leads: Tin–plated Copper
Operating Temperature
–55ºC to +125ºC
MIL-STD-202G, Method 211A, Test
Condition A
Reference IEC 60127 Second
Edition 2003-01 Annex A
Cap 1: Brand logo, current and voltage rating
Cap 2: Series and agency approval
markings
Thermal Shock
MIL-STD-202G, Method 107G, Test
Condition B: (5 cycles –65°C to
+125°C)
Vibration
MIL-STD-202G, Method 201A
Humidity
MIL-STD-202G, Method 103B, Test
Condition A. high RH (95%) and
elevated temperature (40°C) for 240
hours
Available in Bulk (M=1000 pcs/pkg)
Salt Spray
MIL-STD-202G, Method 101D, Test
Condition B
Dimensions
Part Numbering System
0505 xxxx M X E P
505 000P Series
505 000EP Series
Series
Amp Code
6.985 (.275”) Max.
Refer to Amp Code column of
Electrical Characteristics Table
0.813 (.032”) (10 - 16A)
1.016 (.040”) (20- 30A)
Quantity Code
M = 1000
6.35 (.25”)
31.75
(1.25”)
32.72
(1.288”)
Packaging Code
38.1
(1.50”) TYP.
X = Filler
Option Codes
E : Axial Leaded
Others : special options.
Please call
Littelfuse for detail.
All Dimensions in mm
Packaging
N/A
N/A
1000
1000
MX
MXE
N/A
N/A
505 Series
Bulk
Bulk
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/505.html for current information.
339
Revised: January 20, 2009
505 Series
505 Series
Lead-Free