Surface Mount Fuses
Ceramic Fuse > 469 Series
469 Series – 1206 Slo-Blo® Fuse
RoHS
Pb
Description
The 469 Series is a 100% Lead-free, RoHS compliant and
Halogen-free fuse series designed specifically to provide
over-current protection to circuits that operate under high
working ambient temperature up to 150ºC.
The general design ensures excellent temperature stability
and performance reliability.
The high I²t values, typical in the Littelfuse Ceramic fuse
family, ensure high inrush current withstand capability.
Features
• Operating Temperature
from -55ºC to +150ºC
Agency Approvals
AGENCY
AGENCY FILE NUMBER
AMPERE RANGE
E10480
2A – 8A
29862
2A – 8A
Electrical Characteristics for Series
% of Ampere
Rating
Ampere
Rating
Opening Time at 25ºC
100%
2A – 8A
4 hours, Minimum
200%
2A – 8A
1 sec., Min.; 120 secs., Max.
300%
2A – 8A
0.1 sec., Min.; 3 secs., Max.
800%
2A – 8A
0.002 sec., Min.; 0.05 sec., Max.
• 100% Lead-free, RoHS
compliant and Halogenfree
• Suitable for both leaded
and lead-free reflow /
wave soldering
Applications
• LCD Displays
• Scanners
• Servers
• Data Modems
• Notebook Computers
• Gaming Consoles
• Printers
Additional Information
Datasheet
Resources
Samples
Electrical Specifications by Item
Ampere
Amp
Rating
Code
(A)
2.00
4.00
5.00
6.00
7.00
8.00
002.
004.
005.
006.
007.
008.
Max.
Voltage
Rating (V)
63
32
32
24
24
24
Nominal Nominal Voltage Nominal Power
Nominal
Drop At Rated
Dissipation At
Interrupting Rating Resistance Melting I2t
(A2Sec.)3
Current (V)4
Rated Current (W)
(Ohms)2
60 A @ 63 VDC
60 A @ 32 VDC
60 A @ 24 VDC
0.166
0.052
0.033
0.026
0.020
0.016
0.2250
3.560
5.620
9.410
14.400
23.720
0.455
0.236
0.216
0.274
0.216
0.233
0.91
0.944
1.080
1.644
1.512
1.864
Agency Approvals
x
x
x
x
x
x
x
x
x
x
x
x
Notes:
1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting
Rating tested at rated voltage with time constant < 0.8 msec.
2. Nominal Resistance measured with < 10% rated current.
3. Nominal Melting I²t measured at 1 msec opening time.
4. Nominal Voltage Drop measured at rated current after temperature has stabilized.
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 12/13/18
Devices designed to carry rated current for 4 hours minimum. It is recommended that
devices be operated continuously at no more than 80% rated current. See “Temperature
Re-rating Curve”for additional re-rating information.
Devices designed to be mounted with marking code facing up.
Surface Mount Fuses
Ceramic Fuse > 469 Series
100
120
10
100
80
60
40
-65
-45
-25
-5
15
35
55
75
95
115
135
155
TEMPERATURE (°C)
1
TIME IN SECONDS
PERCENT OF RATING
140
4A
5A
6A
7A
8A
Average Time Current Curves
2A
Temperature Re-rating Curve
0.1
Note:
1. Re-rating depicted in this curve is in addition to the standard re-rating of 20% for
continuous operation.
0.01
Example:
For continuous operation at 75 degrees celsius, the fuse should be rerated as follows:
I = (0.80)(0.85)IRAT = (0.68)IRAT
0.001
1
10
100
1000
CURRENT IN AMPERES
Soldering Parameters
Pb – free assembly
Pre Heat
- Temperature Min (Ts(min))
150°C
- Temperature Max (Ts(max))
200°C
- Time (Min to Max) (ts)
60 – 180 seconds
Average Ramp-up Rate (Liquidus Temp
(TL) to peak)
3°C/second max.
TS(max) to TL - Ramp-up Rate
5°C/second max.
Reflow
- Temperature (TL) (Liquidus)
217°C
- Temperature (tL)
60 – 150 seconds
260
Time within 5°C of actual peak
Temperature (tp)
10 – 30 seconds
tL
Ramp-down
TS(min)
Preheat
tS
time to peak temperature
(t 25ºC to peak)
Time
°C
Ramp-down Rate
6°C/second max.
Time 25°C to peak Temperature (TP)
8 minutes max.
Do not exceed
260°C
Wave Soldering
Critical Zone
TL to TP
Ramp-up
TL
TS(max)
25
Peak Temperature (TP)
+0/-5
tP
TP
Temperature
Reflow Condition
260°C, 10 seconds max.
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/13/18
Surface Mount Fuses
Ceramic Fuse > 469 Series
Product Characteristics
Body: Advanced Ceramic
Terminations: A
g / Ni / Sn (100% Lead-free)
Element Cover Coating: Lead-free Glass
Materials
Moisture
IPC/JEDEC J-STD-020, Level 1
Sensitivity Level
Solderability
IPC/EIC/JEDEC J-STD-002, Condition B
Humidity
MIL-STD-202, Method 103, Conditions D
Resistance to
Soldering Heat
MIL-STD-202, Method 210, Condition B
Dimensions
1.000 ± 0.200
[0.039 ± 0.008
1.63 + 0.1/-0.2
[0.064 + 0.004/-0.008]
Moisture Resistance
MIL-STD-202, Method 106
Thermal Shock
MIL-STD-202, Method 107,
Condition B
Mechanical Shock
MIL-STD-202, Method 213,
Condition A
Vibration
MIL-STD-202, Method 201
Vibration,
High Frequency
MIL-STD-202, Method 204,
Condition D
Dissolution of
Metallization
IPC/EIC/JEDEC J-STD-002,
Condition D
Terminal Strength
IEC 60127-4
Part Marking System
3.27 + 0.12/-0.25
[0.129 + 0.005/-0.010]
Amp Code
Marking Code
002.
N
X
004.
S
0.900 ± 0.150
[0.035 ± 0.006]
005.
T
006.
U
007.
W
008.
X
Part Numbering System
0469 008. W R
SERIES
PACKING CODE
R = Reel Pack
AMP CODE
QUANTITY CODE
0.520 ± 0.200
[0.020 ± 0.008]
1.000
[0.039]
1.500
[0.059]
Packaging
1.800
[0.071]
Packaging
Option
Packaging
Specification
Quantity
Quantity &
Packaging Code
8mm Tape
and Reel
EIA-481, IEC
60286, Part 3
3000
WR
3.500
[0.138]
Disclaimer Notice - Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military,
aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other
application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those
expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any
purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products
used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is
subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. Information furnished is believed to be accurate and reliable.
However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not
designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/13/18
