X-On Electronics has gained recognition as a prominent supplier of 0438.250WR Surface Mount Fuses across the USA, India, Europe, Australia, and various other global locations. 0438.250WR Surface Mount Fuses are a product manufactured by Littelfuse. We provide cost-effective solutions for Surface Mount Fuses, ensuring timely deliveries around the world.

0438.250WR Littelfuse

0438.250WR electronic component of Littelfuse
0438.250WR Littelfuse
0438.250WR Surface Mount Fuses
0438.250WR Circuit Protection

Images are for reference only
See Product Specifications
Part No. 0438.250WR
Manufacturer: Littelfuse
Category: Surface Mount Fuses
Description: Surface Mount Fuses 32V .250A FA 0603
Datasheet: 0438.250WR Datasheet (PDF)
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)
1: USD 1.325 ea
Line Total: USD 1.32 
Availability - 2242
Ship by Wed. 19 Mar to Fri. 21 Mar
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
665
Ship by Fri. 21 Mar to Thu. 27 Mar
MOQ : 64
Multiples : 1
64 : USD 1.0136
67 : USD 0.9683
75 : USD 0.8709
100 : USD 0.8231
250 : USD 0.7732
500 : USD 0.7375

2242
Ship by Wed. 19 Mar to Fri. 21 Mar
MOQ : 1
Multiples : 1
1 : USD 1.325
5 : USD 1.1763
10 : USD 1.0584
50 : USD 0.8228
100 : USD 0.7546
250 : USD 0.7029
500 : USD 0.649
1000 : USD 0.605
3000 : USD 0.5819

665
Ship by Fri. 21 Mar to Thu. 27 Mar
MOQ : 67
Multiples : 1
67 : USD 0.9683
75 : USD 0.8709
100 : USD 0.8231
250 : USD 0.7732
500 : USD 0.7375

7643
Ship by Fri. 21 Mar to Thu. 27 Mar
MOQ : 76
Multiples : 1
76 : USD 0.8502

5201
Ship by Fri. 21 Mar to Thu. 27 Mar
MOQ : 92
Multiples : 1
92 : USD 1.2498

   
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RoHS - XON
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We are delighted to provide the 0438.250WR from our Surface Mount Fuses category, at competitive rates not only in the United States, Australia, and India, but also across Europe and beyond. A long established and extensive electronic component distribution network has enhanced our global reach and dependability, ensuring cost savings through prompt deliveries worldwide. Client satisfaction is at the heart of our business, where every component counts and every customer matters. Our technical service team is ready to assist you. From product selection to after-sales support, we strive to deliver a seamless and satisfying experience. Are you ready to experience the best in electronic component distribution? Contact X-ON Electronics today and discover why X-On are a preferred choice for the 0438.250WR and other electronic components in the Surface Mount Fuses category and beyond.

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Surface Mount Fuses Ceramic Fuse > 438 Series RoHS Pb 438 Series 0603 Fast-Acting Fuse HF Description 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 150C. The general design ensures excellent temperature stability and performance reliability. The high It values which is typical in the Littelfuse Ceramic Fuse family ensure high inrush current withstand capability. Features Operating Temperature Suitable for both leaded from -55C to +150C and lead-free reflow / Agency Approvals wave soldering 100% Lead-free, RoHS Agency Agency File Number Ampere Range compliant and Halogen- Recognized to UL/CSA/ free NMX 248-1 and UL/CSA/ E10480 0.250A 6A NMX 248-14 29862 0.250A 6A Applications Handheld Electronics Hard Disk Drives LCD Displays SD Memory Cards Electrical Characteristics for Series Battery Packs % of Ampere Ampere Rating Opening Time at 25C Additional Information Rating 100% 0.25A 6A 4 Hours, Minimum 250% 0.25A 6A 5 Seconds, Maximum Datasheet Resources Samples Electrical Specifications by Item Ampere Max. Nominal Nominal Nominal Voltage Nominal Power Agency Approvals Amp 2 Rating Voltage Interrupting Rating Resistance Melting I t Drop At Rated Dissipation At Rated Code 2 2 3 4 (A) Rating (V) (Ohms) (A Sec.) Current (V) Current (W) 0.250 .250 63VDC 2.218 0.0017 0.550 0.138 x x 0.375 .375 63VDC 1.247 0.0041 0.488 0.183 x x 0.500 .500 63VDC 0.829 0.0100 0.486 0.243 x x 0.750 .750 63VDC 0.466 0.0281 0.378 0.284 x x 50A 63VDC 50A 32VAC 1.00 001. 63VDC 0.310 0.0593 0.351 0.351 x x 1.25 1.25 63VDC 0.200 0.0510 0.365 0.456 x x 1.50 01.5 63VDC 0.174 0.0902 0.368 0.552 x x 1.75 1.75 63VDC 0.1405 0.1440 0.360 0.540 x x 2.00 002. 32 0.051 0.1490 0.107 0.214 x x 2.50 02.5 32 0.0324 0.1977 0.095 0.238 x x 3.00 003. 32 0.0255 0.2922 0.093 0.279 x x 50A 32VDC/12VAC 3.50 03.5 32 0.0205 0.4752 0.082 0.287 x x 4.00 004. 32 0.0170 0.6920 0.079 0.316 x x 5.00 005. 32 0.0115 0.7398 0.074 0.370 x x 6.00 006. 24 50A 24VDC/12VAC 0.0085 1.3838 0.072 0.432 x x Notes: 1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting Rating tested at rated 4. Nominal Voltage Drop measured at rated current after temperature has stabilized. voltage with time constant < 0.8 msec. Devices designed to carry rated current for 4 hours minimum. It is recommended that devices be operated 2. Nominal Resistance measured with < 10% rated current. continuously at no more than 80% rated current. See Temperature Re-rating Curvefor additional re-rating 3. Nominal Melting It measured at 1 msec. opening time. information. Devices designed to be mounted with marking code facing up. 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/11/19Surface Mount Fuses Ceramic Fuse > 438 Series Temperature Re-rating Curve Average Time Current Curves 140 100 120 100 10 80 60 1 40 -65 -45 -25 -5 15 35 55 75 95 115 135 155 TEMPERATURE (C) 0.1 Note: 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: 0.01 I = (0.80)(0.85)I = (0.68)I RAT RAT 0.001 0.1 1 10 100 CURRENT IN AMPERES Soldering Parameters Reflow Condition Pb free assembly t P - Temperature Min (T ) 150C s(min) T P Critical Zone Pre Heat - Temperature Max (T ) 200C Ramp-up s(max) T to T L P - Time (Min to Max) (t ) 60 180 seconds s T L Average Ramp-up Rate (Liquidus Temp (T ) to peak) 3C/second max. L t L T S(max) T to T - Ramp-up Rate 5C/second max. S(max) L - Temperature (T ) (Liquidus) 217C L Ramp-down Reflow - Temperature (t ) 60 150 seconds Preheat L T +0/-5 S(min) Peak Temperature (T ) 260 C P t S Time within 5C of actual peak Temperature (t ) 10 30 seconds p Ramp-down Rate 6C/second max. 25 Time 25C to peak Temperature (T ) 8 minutes max. P time to peak temperature Time Do not exceed 260C (t 25C to peak) Wave Soldering 260C, 10 seconds max. 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/11/19 PERCENT OF RATING TIME IN SECONDS .250A .375A .500A .750A 1A 1.25A 1.5A 1.75A 2A 2.5A 3A 3.5A 4A 5A 6A Temperature

Tariff Desc

8536.10 FUSES AND FUSE HOLDERS, subminiature, plug in or pigtail type known as picofuses or microfuses, dimensions NOT exceeding 6mm x 18mm TC 8530773

8536.1 TC 8734467 FUSE LINKS, having ALL of the following:
(a) dimensions NOT exceeding 6.35mm x 32.0mm
(b) current rating NOT exceeding 50A
(c) voltage rating NOT exceeding 250V
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