043802.5WRGT [LITTELFUSE]
Electric Fuse,;
| 型号： | 043802.5WRGT |
| 厂家： | 
LITTELFUSE |
| 描述： | Electric Fuse, 电路保护 |
| 文件： | 总3页 (文件大小：538K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Surface Mount Fuses
Ceramic Fuse > 438GT Series
RoHS Pb
438GT Series – 0603 Fast-Acting Fuse
Description
The 438GT 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 which is typical in the Littelfuse Ceramic
Fuse family ensure high inrush current withstand capability.
Features
• OperatingTemperature
from -55ºC to +150ºC
• Suitable for both leaded
and lead-free reflow/
wave soldering
Agency Approvals
• 100% Lead-free,
RoHS compliant and
Halogen-free
AGENCY
AGENCY FILE NUMBER
E10480
AMPERE RANGE
2A – 6A
Applications
29862
2A – 6A
• Handheld Electronics
• LCD Displays
• Hard Disk Drives
• SD Memory Cards
• Battery Packs
Electrical Characteristics for Series
Additional Information
% of Ampere
Ampere Rating
OpeningTime at 25ºC
Rating
100%
250%
2A – 6A
2A – 6A
4 Hours, Minimum
5 Seconds, Maximum
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Electrical Specifications by Item
Agency Approvals
Ampere
Rating
(A)
Max.
Nominal
Nominal Nominal Voltage Nominal Power
Amp
Code
Interrupting Rating
Voltage
Resistance Melting I2t
Drop At Rated
Dissipation At
(AC/DC) 1
Rating (V)
(Ohms) 2
(A2Sec.) 3
Current (V) 4
Rated Current (W)
2
2.5
3
002.
02.5
003.
03.5
004.
005.
006.
32
32
32
32
32
32
24
0.0490
0.0364
0.0264
0.0210
0.0164
0.0127
0.0086
0.181
0.240
0.439
0.647
0.739
0.747
1.444
0.110
0.094
0.082
0.078
0.075
0.072
0.070
0.220
0.235
0.246
0.273
0.300
0.360
0.420
x
x
x
x
x
x
x
x
x
x
x
x
x
x
50A @ 32VDC/12VAC
50A @ 24VDC/12VAC
3.5
4
5
6
Notes:
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.
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.
Devices designed to be mounted with marking code facing up.
3. Nominal Melting I²t measured at 1msec. 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: 02/15/18
Surface Mount Fuses
Ceramic Fuse > 438GT Series
Temperature Re-rating Curve
AverageTime Current Curves
140
120
100
80
100
10
60
1
40
-65 -45
-25
-5
15
35
55
75
95
115 135 155
TEMPERATURE (°C)
Note:
0.1
1. Re-rating depicted in this curve is in addition to the standard re-rating of 20% for
continuous operation.
Example:
For continuous operation at 75 degrees celsius, the fuse should be rerated as follows:
I = (0.80)(0.85)IRAT = (0.68)IRAT
0.01
0.001
0.1
1
10
100
CURRENT IN AMPERES
Soldering Parameters
tP
Reflow Condition
-Temperature Min (Ts(min)
Pb – free assembly
TP
Critical Zone
L to TP
Ramp-up
T
)
150°C
TL
TS(max)
Pre Heat -Temperature Max (Ts(max)
)
200°C
tL
-Time (Min to Max) (ts)
60 – 180 seconds
Ramp-down
Average Ramp-up Rate (LiquidusTemp
(TL) to peak)
Preheat
3°C/second max.
5°C/second max.
TS(min)
tS
TS(max) toTL - Ramp-up Rate
-Temperature (TL) (Liquidus) 217°C
25
Reflow
time to peak temperature
(t 25ºC to peak)
-Temperature (tL)
60 – 150 seconds
260+0/-5 °C
Time
PeakTemperature (TP)
Time within 5°C of actual peak
Temperature (tp)
10 – 30 seconds
Ramp-down Rate
6°C/second max.
8 minutes max.
260°C
Time 25°C to peakTemperature (TP)
Do not exceed
Wave Soldering
260°C, 10 seconds max.
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/15/18
Surface Mount Fuses
Ceramic Fuse > 438GT Series
Product Characteristics
Moisture Resistance
MIL-STD-202, Method 106
Body: Advanced Ceramic
Materials
Terminations: Ag / Ni / Sn (100% Lead-free)
Element Cover Coating: Lead-free Glass
MIL-STD-202, Method 107,
Condition B-3
Thermal Shock
MIL-STD-202, Method 213,
Condition A
Mechanical Shock
Vibration
Moisture
Sensitivity Level
IPC/JEDEC J-STD-020, Level 1
MIL-STD-202, Method 201
Solderability
Humidity
IPC/EIC/JEDEC J-STD-002, Condition B
MIL-STD-202, Method 103, Conditions D
Vibration,
High Frequency
MIL-STD-202, Method 204,
Condition D
Dissolution of
Metallization
IPC/EIC/JEDEC J-STD-002,
Condition D
Resistance to
Solder Heat
MIL-STD-202, Method 210, Condition B
Terminal Strength
IEC 60127-4
Dimensions
Part Marking System
Amp Code Marking Code
1.582 ꢀ.152
[ꢀ.ꢀ62 ꢀ.ꢀꢀ6]
002.
02.5
003.
03.5
004.
005.
006.
N
O
P
ꢀ.83 ꢀ.152
[ꢀ.ꢀ32 ꢀ.ꢀꢀ6]
R
S
T
ꢀ.5ꢀ8 ꢀ.1ꢀ2
[ꢀ.ꢀ2 ꢀ.ꢀꢀ4]
U
Part Numbering System
0438 005. W R GT
SERIES
ꢀ.432 +/- ꢀ.15ꢀ
[ꢀ.ꢀ17 +/- ꢀ.ꢀꢀ6]
PACKING CODE
R = Reel Pack
AMP CODE
ꢀ.6ꢀ
[ꢀ.ꢀ24]
ꢀ.74
[ꢀ.ꢀ29]
QUANTITY CODE
W = 3000 pcs
1.ꢀꢀ
[ꢀ.ꢀ39]
1.94
[ꢀ.ꢀ76]
Packaging
Quantity &
Packaging Code
Packaging Option
Packaging Specification
Quantity
8mmTape and Reel
EIA-481, IEC 60286, Part 3
3000
WR
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently eval-
uate 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: 02/15/18
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