Axial Lead & Cartridge Fuses
5×20 mm > Time-Lag > 618 Series
618 Series, 5×20 mm, Time-Lag Fuse
Description
RoHS
Pb
5×20mm Time-Lag glass body cartridge fuse designed to
IEC specification.
Features
• Designed to International
(IEC ) Standards for use
globally
• Meets the IEC 60127-2,
Sheet 3 specification for
Time-Lag fuses
Agency Approvals
Agency
Agency File Number
Ampere Range
• Available in cartridge and
axial lead form
• RoHS compliant and
lead-free
Applications
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
Additional Information
2005010207170553
E10480
29862
40013496
N/A
* Approval for Cartridge versions only
0.125A-6.3A
0.125A-10A
0.125A-10A
0.125A – 10A
0.125A-10A
Datasheet
Resources
Samples
Electrical Characteristics
% of Ampere
Rating
150%
210%
275%
400%
1000%
Ampere Rating
0.125A-6.3A
8A-10A
0.125A-6.3A
8A-10A
0.125A-6.3A
8A-10A
0.125A-6.3A
8A-10A
0.125A-6.3A
8A-10A
Opening Time
60 minutes, Minimum
30 minutes, Minimum
120 sec., Maximum
120 sec., Maximum
600 ms., Min.; 10 sec. Max.
600 ms., Min.; 10 sec. Max.
150 ms., Min.; 3 sec. Max.
150 ms., Min.; 3 sec. Max.
20 ms., Min.; 300 ms. Max.
20 ms., Min.; 300 ms. Max.
© 2015 Littelfuse, Inc.
Application testing is strongly recommended. Specifications are subject to change without notice.
Revised: 06/22/15
Axial Lead & Cartridge Fuses
5×20 mm > Time-Lag > 618 Series
Electrical Characteristics
Amp
Code
.125
.160
.200
.250
.315
.400
.500
.630
.800
001.
1.25
01.6
002.
02.5
3.15
004.
005.
06.3
008.
010.
Amp
Rating
(A)
0.125
0.16
0.2
0.25
0.315
0.4
0.5
0.63
0.8
1
1.25
1.6
2
2.5
3.15
4
5
6.3
8
10
Voltage
Rating
(V)
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
40 A @ 250 VAC
50 A @ 250 VAC
63 A @ 250 VAC
80 A @ 250 VAC
100 A @ 250 VAC
35 A @ 250 VAC
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
4.2000
3.7000
1.6000
1.0495
0.8475
0.5350
0.3700
0.2750
0.0813
0.0613
0.0446
0.0336
0.0293
0.0219
0.0173
0.0129
0.0104
0.0076
0.0059
0.0045
Nominal
Melting
I
2
t (A
2
sec)
0.1465
0.14400
0.3410
0.5405
1.1100
1.3250
2.8250
4.6750
3.370
6.730
12.650
23.350
14.450
23.250
38.150
69.10
111.00
198.50
341.50
568.00
Maximum
Maximum
Voltage Drop at
Power
Rated Current Dissipation At
(mV)
1.5ln(W)
1900
1500
1300
1100
1000
900
300
250
150
150
150
150
150
120
100
100
100
100
100
100
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
4
4
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Agency Approvals
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Temperature Re-rating Curve
Average Time Current Curves
0.125A
0.160A
0.200A
0.250A
0.315A
0.400A
0.500A
0.630A
0.800A
1A
1.25A
1.6A
2A
2.5A
3.15A
4A
5A
6.3A
8A
10A
10000
1000
100
TIME IN SECONDS
10
1
0.1
Note:
Rerating depicted in this curve is in addition to the standard derating of 25%
for continuous operation.
0.01
0.01
0.1
1
10
100
CURRENT IN AMPERES
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/22/15
Axial Lead & Cartridge Fuses
5×20 mm > Time-Lag > 618 Series
Soldering Parameters - Wave Soldering
300
Recommended Process Parameters:
Wave Parameter
Preheat:
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
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
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
Time (Seconds)
Preheat Time
Dwell Time
Cooling Time
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.
Product Characteristics
Material
Terminal Strength
Solderability
Product Marking
Body:
Glass
Cap:
Nickel–plated Brass
Leads:
Tin–plated Copper
MIL
-STD-202, Method 211, Test
Condition A
MIL
-STD-202 method 208
Cap1:
Brand logo, current and
voltage ratings
Cap2:
Agency approval marks
Available in Bulk (M=1000 pcs/pkg)
or on Tape/Reel (MRET1=1000 pcs/
reel)
Operating Temperature
Thermal Shock
Vibration
Humidity
Salt Spray
–55ºC to +125ºC
MIL
-STD-202, Method 107 Test
,
Condition B (5 cycles, –65
°
C to
+125
°
C)
MIL
-STD-202, Method 201
MIL
-STD-202, Method 103, Test
Condition A (High RH (95%) and
elevated temperature (40
°
C) for 240
hours)
MIL
-STD-202, Method 101, Test
Condition B
Packaging
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/22/15
Axial Lead & Cartridge Fuses
5×20 mm > Time-Lag > 618 Series
Dimensions
Part Numbering System
0618 xxxx M X E P
20+0.5
Series
5.2+0.1
-0.2
0618 000P
5.1+0.6
5.1+0.6
Amp Code
Refer to Amp Code column of
Electrical Characteristics Table
Quantity Code
M = 1000
0618.125 XEP
to
0618010. XEP
40±1.0
21.5±1.0
5.5±0.3
Packaging Code
X = Filler
0.65±0.05*
All dimensions in mm
Option Codes
Blank : Cartidge Type Fuse
E
: Axial Lead Fuse
Notes:
* Ratings above 6.3A have 0.8±0.05 diameter lead.
Lead-free
Packaging
Packaging Option
618 Series
Bulk
Bulk
Reel and Tape
Bulk
Bulk
Bulk
Packaging Specification
N/A
N/A
EIA 296-E
N/A
N/A
N/A
Quantity
1000
1000
1000
1000
1000
100
Quantity &
Packaging Code
MX
MXE
MRET1
MXG
MXB
HX
Taping Width
N/A
N/A
T1=53mm (2.087”)
N/A
N/A
N/A
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/22/15
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