Axial Lead & Cartridge Fuses
3AB > Fast-Acting > 505 Series
505 Series,
Lead-free 3AB, Fast-Acting Fuse
Description
Features
Agency Approvals
Agency
Agency File Number
Ampere Range
Applications
Electrical Characteristics for Series
% of Ampere
Rating
%
%
%
Ampere Rating
Opening Time
Electrical Characteristics Specifications by Item
Max
Voltage
Rating
(V)
450
450
500
500
500
500
Nominal
Cold
Resistance
(Ohms)
0.0167
0.0117
0.0073
0.0056
0.0048
0.0038
Amp
Code
Amp
Rating
(A)
10
12
16
20
25
30
Interrupting
Rating
Nominal
Melting
I
2
T (A
2
Sec.)
91
192
51
101
145
203
X
X
X
X
X
X
Agency Approvals
010.
012.
016.
020.
025.
030.
20kA@450VAC
1000A@250VDC
50kA@500VAC
20kA@500VDC
30kA@500VAC
20kA@500VDC
X
X
X
X
X
X
X
X
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/505.html for current information.
337
Revised: January 20, 2009
505 Series
505 Series
Introduction to & Cartridge Fuses
Axial Lead Circuit Protection
Transientology
3AB > Fast-Acting > 505 Series
Temperature Rerating Curve
Average Time Current Curves
10A
12A
16A
20A
25A
30A
10000
1000
100
TIME IN SECONDS
10
1
0.1
0.01
0.001
1
10
100
1000
CURRENT IN AMPERES
Soldering Parameters - Wave Soldering
300
Temperature (°C) - Measured on bottom side of board
280
260
240
220
200
180
160
140
120
100
80
60
40
20
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
10
20
30
40
50
60
70
80
90
0
0
Recommended Process Parameters:
Wave Parameter
Preheat:
(Depends on Flux Activation
Temperature)
(Typical Industry Recommendation)
Lead-Free Recommendation
Temperature
Minimum:
Temperature
Maximum:
Preheat
Time:
Solder Pot Temperature:
Solder Dwell Time:
100
°
C
150
°
C
60-180 seconds
260
°
C Maximum
2-5 seconds
Recommended Hand-Solder 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.
Time (Seconds)
Preheat Time
Dwell Time
Cooling Time
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
Body: Ceramic
Cap: Nickel–plated brass
Leads: Tin–plated Copper
MIL
-STD-202G, Method 211A, Test
Condition A
Reference IEC 60127 Second
Edition 2003-01 Annex A
Cap 1: Brand logo, current and volt-
age rating
Cap 2: Series and agency approval
markings
Available in Bulk (M=1000 pcs/pkg)
Operating Temperature
Thermal Shock
Vibration
–55ºC to +125ºC
MIL
-STD-202G, Method 107G, Test
Condition B: (5 cycles –65
°
C to
+125
°
C)
MIL
-STD-202G, Method 201A
MIL
-STD-202G, Method 103B, Test
Condition A. high RH (95%) and
elevated temperature (40
°
C) for 240
hours
MIL
-STD-202G, Method 101D, Test
Condition B
Material
Terminal Strength
Solderability
Product Marking
Humidity
Packaging
Salt Spray
Dimensions
Part Numbering System
0505 xxxx M X E P
505 000P Series
505 000EP Series
Series
Amp Code
6.985 (.275”) Max.
0.813 (.032”) (10 - 16A)
1.016 (.040”) (20- 30A)
Refer to Amp Code column of
Electrical Characteristics Table
Quantity Code
6.35 (.25”)
31.75
(1.25”)
32.72
(1.288”)
M = 1000
Packaging Code
38.1
(1.50”) TYP.
X = Filler
Option Codes
All Dimensions in mm
E : Axial Leaded
Others : special options.
Please call
Littelfuse for detail.
Lead-Free
505
Series
Bulk
Bulk
N/A
N/A
1000
1000
MX
MXE
N/A
N/A
© 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
Packaging
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