Electronic Circuit Board Very Fast Acting Ceramic Fuse 438 Series -
0603 High Temperature
The 438 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
• Operating Temperature from -55ºC to +150ºC
• 100% Lead-free, RoHS compliant and Halogenfree
• Suitable for both leaded and lead-free reflow / wave soldering
Applications
Handheld Electronics • LCD Displays • Battery Packs • Hard Disk
Drives • SD Memory Cards
Electrical Characteristics for Series
| % of Ampere Rating | Ampere Rating | Opening Time |
| 100% | 0.250A – 6A | 4 hours, Minimum |
| 250% | 0.250A – 6A | 5 Seconds, Maximum |
Electrical Specifications by Item
| Ampere Rating | Amp Code | Max.Voltage | Interrupting Rating | Nominal Resistance | Nominal Melting I2t | Nominal Voltage Drop At Rated | Nominal Power Dissipation At Rated Current |
| 0.25 | 0.25 | 63VDC | 50A @ 63VDC
50A @ 32VAC | 2.218 | 0.0017 | 0.55 | 0.138 |
| 0.375 | 0.375 | 63VDC | 1.247 | 0.0041 | 0.488 | 0.183 |
| 0.5 | 0.5 | 63VDC | 0.829 | 0.01 | 0.486 | 0.243 |
| 0.75 | 0.75 | 63VDC | 0.466 | 0.0281 | 0.378 | 0.284 |
| 1 | 1 | 63VDC | 0.31 | 0.0593 | 0.351 | 0.351 |
| 1.25 | 1.25 | 63VDC | 0.2 | 0.051 | 0.365 | 0.456 |
| 1.5 | 1.5 | 63VDC | 0.174 | 0.0902 | 0.368 | 0.552 |
| 1.75 | 1.75 | 63VDC | 1.405 | 0.144 | 0.36 | 0.54 |
| 2 | 2 | 32 | 50A @ 32VDC/12VAC | 0.051 | 0.149 | 0.107 | 0.214 |
| 2.5 | 2.5 | 32 | 0.0324 | 0.1977 | 0.095 | 0.238 |
| 3 | 3 | 32 | 0.0255 | 0.2922 | 0.093 | 0.279 |
| 3.5 | 3.5 | 32 | 0.0205 | 0.4752 | 0.082 | 0.287 |
| 4 | 4 | 32 | 0.017 | 0.692 | 0.079 | 0.316 |
| 5 | 5 | 32 | 0.0115 | 0.7398 | 0.074 | 0.37 |
| 6 | 6 | 24 | 50A @ 24VDC/12VAC | 0.0085 | 1.3838 | 0.072 | 0.432 |
Dimensions
FAQ
1.What is your MOQ?
A: We provide you small MOQ for each item, it depends your specific
order.
2.What is your delivery date?
A: The delivery date is about 2-7days after receipt of payment.
3.What is your payment terms?
A: We accept T/T, western union, ,70% deposit in advance and 30%
balance before
shipment.
4.Can you send free samples?
A: Yes, free samples are available; you just need to pay the
express fee. You can provide your
a/c like DHL, or you can call your courier to pick up from our
office.
5.How do you carry out quality control?
A: Quality is our priority. Our QC always attach great importance
to quality control from the
very beginning to the end.
6.Can you accept OEM orders?
A: Yes, we accept OEM & ODM orders, welcome all types of customized
orders and cooperation.
Please tell me:
What product specifications do you need? when you ask for a
quotation.I will give you the most
competitive price per as your requirements. And we have many types
for you to choose.
P.S.:If you can't find any products to meet your requirements.
welcome to send us the details
drawings so that we can provide us our professional & best service
to you.
