1
Non resettable fuses
UMK 250
www.schurter.com /PG01_2
Fuses
Surface Mount Fuse with Clip, 4.2 x 11.3 mm, Quick-Acting F, UMK 250 = UMF 250 (Au) + UMC 250
IEC 60127-4 · 250 VAC · 125 VDC · Quick-Acting F
Description
- VDE/UL Approvals, UMF 250, UMF 250 (Au), UMC 250 , see variants
- High breaking capacity of up to 200 A @ 250 VAC
- UL approval for 0.05 A - 4 A @ 250 VAC and 125 VDC
Standards
- IEC 60127-4/2, IEC 60127-6
- UL 248-14 / 4248-1
- CSA C22.2 no. 248.14 / no. 4248.1
Approvals
- VDE Certificate Number: 40027880 / 40023291
- UL File Number: E41599
Applications
- Primary protection on SMD PCBs
References
Packaging Details
Fuse Kit Fuse Kit UMF 250 / UMK 250
Weblinks
pdf datasheet, html-datasheet, General Product Information, Packaging
details, Approvals, CE declaration of conformity, RoHS, CHINA-RoHS,
REACH, Distributor-Stock-Check, Detailed request for product
Technical Data
Rated Voltage 250 VAC, 125 VDC
Rated current 0.5 - 4 A
Breaking Capacity 100-200 A
Characteristic Quick-Acting F
Mounting PCB,SMT
Admissible Ambient Air Temp. -40 °C to 85 °C
Climatic Category 40/085/21 acc. to IEC 60068-1
Material: Housing Ceramic
Material: Terminals Gold-Plated Copper Alloy
Storage Conditions 0 °C to 40 °C, max. 70% r.h.
Product Marking , Rated current, Rated Voltage, Cha-
racteristic, Breaking Capacity
Soldering Methods Reflow
Soldering Profile
Solderability 245 °C / 3 sec acc. to IEC 60068-2-58
Resistance to Soldering Heat 260 °C / 10 sec acc. to IEC 60068-2-58
Life Test (acc. to EIA/IS-722, Test 4.4.1)
1000h @ 0.60 x In @ 70°C
Moisture Resistance Test (acc. to EIA/IS-722, Test 4.4.3)
10% rated current. Temperatur change
between 25°C und 65°C at 100% rela-
tive humidity. Duration: 24h each cycle,
total 10 cycles
Terminal Strength (acc. to EIA/IS-722, Test 4.5.5)
(Deflection of board 1 mm for 1 minute)
Mechanical Shock MIL-STD-202, Method 213B
(Shock 50g, half sine wave, 11 ms)
Resistance to Solvents Cleaning with common solvents
Flammability min. UL 94V-1
(acc. to EIA/IS-722, Test 4.12)
Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in
General Product Information
Dimension
11.3 mm
10.1
10.7
11.3
3.6
4
+0.2
0
6.72
4.2
33
5.5
4.75
Soldering pads