6125 2410 1808 Wire In Air Time Delay Suface Mount Fuse 250V 2A
Overview
Ao littel surface mount fuses available for addressing a broad
range of overcurrent protection applications. Helping to prevent
costly damage and promote a safe environment for electronic and
electrical equipment, our single-use chip fuses provide performance
stability to support applications with current ratings from .5A up
to 20A.
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Ao littel also offers the telecom FT600 fuse for telecommunications
applications. This telecom fuse helps comply with North American
overcurrent protection requirements,including Telcordia, GR-1089,
TIA-968-A (formerly FCC Part 68), and UL60950 3rd edition
The multi-layer design 2410(6125) is a Wire-In-Air SMD Fuse which
is very suitable for secondary level over current protection
applications.
Compared our straight wire element design 2410SFV fuses with normal
corrugating wire design fuse. The straight wire element in air
performs consistent fusing and cutting
characteristics together with excellent inrush current withstanding
capability.
Introduced PCB assembly technology into 2410 fuses design and
manufacture, we achieved on lead free completely and no end cap
falling off risk comparing with traditional ceramic body with end
cap fuse.
| Ao littel Surface Mount Fuse Family Member |
| No. | Size | Blow | Voltage | Seires |
| 1 | 0603 | Fast Blow | 32V | 06.000 |
| 2 | 0603 | Time Delay | 32V | 06.100 |
| 3 | 1206 | Fast Blow | 32V | 12.000 |
| 4 | 1206 | Time Delay | 32V | 12.100 |
| 5 | 6125 | Time Delay | 250V | SET |
| 6 | 6125 | Fast Blow | 250V | SEF |
| 7 | 2410 | Fast Blow | 125V | SFE |
| 8 | 2410 | Time Delay | 125V | STE |
| 9 | 1808 | Fast Blow | 300V | SSF |
| 10 | 1808 | Time Delay | 300V | SST |
| 9 | 1032 | Time Delay | 125V | R1032 |
| 10 | 1032 | Fast Blow | 125V | R1032 |
Benefits
• Very fast acting at 200% overload current level
• Excellent inrush current withstanding capability
• High reliability and resilience
• Strong arc suppression characteristics
• Copper terminal with nickel and tin plated
Product features
• Time-delay surface mount fuse with Small 2410 Footprint
• Satisfies the EIA/IS-722 Standard
• Solder immersion compatible
• 250V Voltage Rating (200mA to 30A)
• High Interrupting Ratings
• Designed in accordance with IEC 60127-4 Universal Modular Fuse
requirement
• Wide Operating temperature range of -55°C to 125°C
• IEC 61000-4-5 2 ed. Surge Immunity Test Compliant (1.2 x
50us/8x20us combination wave 500V/250A for <25W Lamp Category) –
3A and above ampere rating only
• Halogen free, RoHS compliant and 100% lead-free
• Copper or copper alloy composite fuse link
Application
• Industrial equipment
• LCD/PDP TV
• Backlight inverter
• Power supplier
• Telecom system
• Networking
• Game systems
• White goods
• Automotive
Shape and Dimensions (mm)
Specification
| Part No. | Ampere Rating | Voltage Rating | Breaking Capacity | Nominal Cold Resistance (Ohms) | I2TMelting Integral(A2.S) | Agency Approvals |
|
| UL | CUL |
| SET0200 | 200mA | 250VAC | 50A@300VAC 50A@250VAC 200A@125VAC | 0.92 | 0.125 | ● | ● |
|
|
| SET0250 | 250mA | 0.86 | 0.145 | ● | ● |
| SET0300 | 300mA | 0.62 | 0.162 | ● | ● |
| SET0315 | 315mA | 0.55 | 0.189 | ● | ● |
| SET0375 | 375mA | 0.47 | 0.2 | ● | ● |
| SET0400 | 400mA | 0.38 | 0.238 | ● | ● |
| SET0500 | 500mA | 0.32 | 0.275 | ● | ● |
| SET0600 | 600mA | 0.285 | 0.47 | ● | ● |
| SET0630 | 630mA | 0.256 | 0.566 | ● | ● |
| SET0700 | 700mA | 0.208 | 0.805 | ● | ● |
| SET0750 | 750mA | 0.175 | 1.24 | ● | ● |
| SET0800 | 800mA | 0.155 | 1.88 | ● | ● |
| SET1100 | 1A | 0.148 | 3.5 | ● | ● |
| SET1125 | 1.25A | 0.102 | 4.76 | ● | ● |
| SET1150 | 1.5A | 0.085 | 6.305 | ● | ● |
| SET1160 | 1.6A | 0.075 | 6.505 | ● | ● |
| SET1200 | 2A | 0.044 | 8.95 | ● | ● |
| SET1250 | 2.5A | 0.043 | 16.025 | ● | ● |
| SET1300 | 3A | 0.033 | 21.56 | ● | ● |
| SET1315 | 3.15A | 0.029 | 22.75 | ● | ● |
| SET1350 | 3.5A | 0.027 | 27.05 | ● | ● |
| SET1400 | 4A | 0.025 | 31.808 | ● | ● |
| SET1500 | 5A | 0.019 | 40.25 | ● | ● |
| SET1600 | 6A | 0.018 | 67.245 | ● | ● |
| SET1630 | 6.3A | 0.017 | 73.55 | ● | ● |
| SET1700 | 7A | 0.015 | 76.28 | ● | ● |
| SET1800 | 8A | 80.75 | ○ | ○ |
| SET2100 | 10A | 0.014 | 110.38 | ○ | ○ |
| SET2120 | 12A | 0.013 | 158.08 | ○ | ○ |
| SET2150 | 15A | 0.012 | 160.68 | ○ | ○ |
| SET2200 | 20A | 166.58 | ○ | ○ |
| SET2300 | 30A | 0.011 | 170.56 | ○ | ○ |
- These part no. cold resistance and I2t value are pending due to
fuse elements shall be customized;
- DC Cold Resistance are measured at <10% of rated current in
ambient temperature of 25℃;
- Typical Pre-arching I2t are calculated at 10*In Current or 8ms;
- Min Interrupting Rating: 1.35*In.
Product Characteristics
NO. | Item | Content | Reference standards |
| 1 | Product Marking | Brand, Ampere Rating | Ao littel marking standards |
| 2 | Operating Temperature | -55°C to 125°C | IEC60068-2-1/2 |
| 3 | Solderability | T=240°C±5°C , t=3sec±0.5sec, Coverage≥95% | MIL-STD-202, Method 208 |
| 4 | Resistance to Soldering Heat | 10 sec at 260°C | MIL-STD-202, Method 210, Test condition B |
| 5 | Insulation Resistance (after Opening) | 10,000 ohms minimum | MIL-STD-202, Method 302, Test Condition A |
| 6 | Thermal Shock | 5 cycles, -65°C / +125°C, 15 minutes at each extreme | MIL-STD-202, Method 107, Test Condition B |
| 7 | Mechanical Shock | 100G’s peak for 6 milliseconds, 3cycles | MIL-STD-202, Method 213, Test I |
| 8 | Vibration | 0.03”amplitude, 10-55 Hz in 1 min. 2hrs each XYZ=6hrs | MIL-STD-202, Method 201 |
| 9 | Moisture Resistance | 10 cycles | MIL-STD-202, Method 106 |
| 10 | Salt Spray | 5% salt solution, 48hrs | MIL-STD-202, Method 101, Test Condition B |
Fusing Characteristics
| % of Ampere Rating(In) | Fusing Time |
| 100% * In | 4 hours Min. |
| 200% * In | 120 sec Max. |
| 1000% * In | 10ms Min . |
Packaging
Tape in reel ; 1,000 pcs in 7 inches dia. reel, 12mm wide tape, EIA
Standard 481
Surface Mount Fuse Selection Flowchart
However, the basic considerations for fuse selection are shown in
the flowchart presented in Figure 6. Following this flow chart
will help you select a fuse best suited for your application
conditions.
Step 1 – Determine Steady State Fuse Current Rating
Apply Standard Steady State Derating (75%) [Ifuse ≥ Isys/0.75] ⇒
Apply Temperature Derating [Ifuse ≥ Isys/0.75/Ktemp] ⇒ Steady State
Fuse Current Rating ⇒ Step 2 –Determine Pulse Waveform by
Calculating I2t ⇒ Step 3 –Apply Pulse Cycle Derating ⇒ Step 4
–Apply Pulse Temperature
Derating ⇒ Step 5 – Apply Derating for Variance in the Circuit ⇒
Step 6 – Select Fuse Current
Rating for Pulse Environment ⇒ Step 7 – Select Fuse Current Rating
(use higher value between Step 1 and Step 6) ⇒ Step 8 – Check
Voltage Rating
Selecting Surface Mount Fuses
SMD Fuse selection seems straightforward, in that, you pick one
which has a current rating just a bit higher than your worstcase
system operating current. Unfortunately, it’s not that simple.
There are derating considerations for operating current and
application temperature. Turn-on and other system operations (like
processor speed changes or motor start up) cause current surges or
spikes that also require consideration when selecting a fuse. So
selecting the right fuse for your application is not as simple as
knowing the nominal current drawn by the system.
Surface Mount Fuse Temperature Derating Comparision
A SMD fuse is a temperature sensitive device. Therefore, operating
temperature will have an effect on fuse performance and
lifetime.Operating temperature should be taken into consideration
when selecting the fuse current rating. The Thermal Derating Curve
for surface mount fuses is presented in below Figure . Use it to
determine the derating percentage based on operating temperature
and apply it to the derated system current.
