Fuses
https://www.schurter.com /PG01_2
UMK 250
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
See below:
Approvals and Compliances
Applications
References
Weblinks
- Primary protection on SMD PCBs
Packaging Details
Fuse Kit
Fuse Kit UMF 250 / UMK 250
pdf datasheet, html-datasheet, General Product Information, Packaging
details, Distributor-Stock-Check, Detailed request for product, Microsite
- 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
Technical Data
Rated Voltage
Rated current
Breaking Capacity
Characteristic
Mounting
Admissible Ambient Air Temp.
Climatic Category
Material: Housing
Material: Terminals
Storage Conditions
Product Marking
250 VAC, 125 VDC
0.5 - 4 A
100-200 A
Quick-Acting F
PCB,SMT
-40 °C to 85 °C
40/085/21 acc. to IEC 60068-1
Ceramic
Gold-Plated Copper Alloy
0 °C to 40 °C, max. 70% r.h.
, Rated current, Rated Voltage, Cha-
racteristic, Breaking Capacity
Soldering Methods
Solderability
Resistance to Soldering Heat
Life Test
Moisture Resistance Test
Reflow
Soldering Profile
245 °C / 3 sec acc. to IEC 60068-2-58
260 °C / 10 sec acc. to IEC 60068-2-58
(acc. to EIA/IS-722, Test 4.4.1)
1000h @ 0.60 x In @ 70°C
(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
(acc. to EIA/IS-722, Test 4.5.5)
(Deflection of board 1 mm for 1 minute)
MIL-STD-202, Method 213B
(Shock 50g, half sine wave, 11 ms)
Cleaning with common solvents
min. UL 94V-1
(acc. to EIA/IS-722, Test 4.12)
Terminal Strength
Mechanical Shock
Resistance to Solvents
Flammability
Approvals and Compliances
Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in
Details about
Approvals
Approvals
The approval mark is used by the testing authorities to certify compliance with the safety requirements placed on electronic products.
Approval Reference Type: UMK 250
Approval Logo
Certificates
VDE Approvals
UL Approvals
Certification Body
VDE
UL
Description
VDE Certificate Number: 40027880 / 40023291
UL File Number: E41599
Fuses
1
UMK 250
Product standards
Product standards that are referenced
Organization
Design
Designed according to
Designed according to
Designed according to
Designed according to
Standard
IEC 60127-6
IEC 60127-4
UL 248-14 / 4248-1
CSA22.2 No. 248.14 / No. 4248.1
Description
https://www.schurter.com /PG01_2
Fuses
Miniature fuses. Part 6. Fuse-holders for miniature fuse-links
Miniature fuses. Part 4. Universal modular fuse-links for through-hole and
surface mount types
Low voltage fuses - Part 14: Additional fuses
Low-Voltage Fuses - Part 14: Supplemental Fuses
Application standards
Application standards where the product can be used
Organization
Design
Designed for applications acc.
Standard
IEC/UL 60950
Description
IEC 60950-1 includes the basic requirements for the safety of information
technology equipment.
Compliances
The product complies with following Guide Lines
Identification
Details
CE declaration of conformity
Initiator
SCHURTER AG
Description
The CE marking declares that the product complies with the applicable
requirements laid down in the harmonisation of Community legislation on
its affixing in accordance with EU Regulation 765/2008.
EU Directive RoHS 2011/65/EU
The law SJ / T 11363-2006 (China RoHS) has been in force since 1 March
2007. It is similar to the EU directive RoHS.
SCHURTER strives to offer our customers halogen free products.
On 1 June 2007, Regulation (EC) No 1907/2006 on the Registration,
Evaluation, Authorization and Restriction of Chemicals 1 (abbreviated as
"REACH") entered into force.
RoHS
China RoHS
Halogen Free
REACH
SCHURTER AG
SCHURTER AG
SCHURTER AG
SCHURTER AG
Dimension [mm]
11.3 mm
10.7
11.3
3
5.5
3
3.6
2
6.7
4.2
Soldering pads
Pre-Arcing Time
Rated Current In
0.5 A - 4.0 A
1.0 x In min.
-
1.25 x In min.
60 min
2.0 x In max.
120 s
10.0 x In min. 10.0 x In max.
1 ms
10 ms
2
Fuses
4.75
10.1
+0.2
0
4
Fuses
https://www.schurter.com /PG01_2
UMK 250
Time-Current-Curves
10000
500 mA
630 mA
800 mA
1A
1.25 A
1.6 A
2A
2.5 A
3.15 A
4A
1000
100
10
Time in Seconds
1
0.1
0.01
0.001
0.0001
0.1
1
10
100
Current in Amperes
All Variants
Rated Cur-
rent [A]
Rated Vol-
tage [VAC]
Rated Vol-
tage [VDC]
Breaking
Capacity
Voltage Drop
1.0 In max.
[mV]
430
430
350
350
300
300
250
250
220
220
190
190
200
200
160
160
100
100
100
100
Voltage Drop
1.0 In typ.
[mV]
600
600
500
500
400
400
300
300
300
300
300
300
300
300
300
300
300
300
300
300
Power Dissi-
pation 1.25 In
max [mW]
500
500
500
500
500
500
500
500
1000
1000
1000
1000
1000
1000
1200
1200
1500
1500
2000
2000
Melting I²t
10.0 In typ.
[A²s]
0.27
0.27
0.9
0.9
0.21
0.21
0.4
0.4
1
1
2.1
2.1
3.26
3.26
4.8
4.8
5.17
5.17
9.4
9.4
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l
l
l
l
l
l
l
l
l
l
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l
l
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l
l
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l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
Order Number
0.5
0.5
0.63
0.63
0.8
0.8
1
1
1.25
1.25
1.6
1.6
2
2
2.5
2.5
3.15
3.15
4
4
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Most Popular.
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Availability for all products can be searched real-time:https://www.schurter.com/en/Stock-Check/Stock-Check-SCHURTER
1) IEC: 100 A @ 250 VAC, p.f.
≥
0.95 / 100 A @ 125 VDC
1) UL: 200 A @ 250 VAC / 100 A @ 125 VDC / 35 A @ 250 VDC / 200 A @ 63 VAC/DC
2) IEC / UL: 200 A @ 250 VAC / 100 A @ 125 VDC / 35 A @ 250 VDC / 200 A @ 63 VAC/DC
Approval Overview
UMF 250 -> Fuse with tin-plated caps, Approval Status: VDE, UL LISTED, cURus, Free of CCC, PSE JET, KTL
UMF 250 (Au) -> Fuse with gold-plated caps, Approval Status: VDE Mark and cURus
UMC 250 -> Clip, Approval Status: VDE UG Mark and cURus
Fuses
3
UMK 250
Rated Cur-
rent [A]
Rated Vol-
tage [VAC]
Rated Vol-
tage [VDC]
Breaking
Capacity
Voltage Drop
1.0 In max.
[mV]
Voltage Drop
1.0 In typ.
[mV]
Power Dissi-
pation 1.25 In
max [mW]
Melting I²t
10.0 In typ.
[A²s]
https://www.schurter.com /PG01_2
Fuses
Order Number
UMK 250 = UMF 250 (Au) + UMC 250
There is no approval existing for the combination fuse and clip UMK 250, but the fuse and the clip are fully approved independently at VDE/UL. See
details above.
In the reflow soldering process, the fuse must have gold-plated caps, otherwise fuse and clip would be soldered together. For fuse replacement in the
field, a standard UMF 250 fuse with tin-plated caps can be used.
It is not allowed to replace higher rated current than 4 A in the clip.
Packaging Unit
.xx = .11 Blister Tape (100 pcs.)
.xx = .22 Blister Tape 33 cm Reel (1000 pcs.)
4
Fuses
The specifications, descriptions and illustrations indicated in this document are based on current
information. All content is subject to modifications and amendments. Information furnished is believed
to be accurate and reliable. However, users should independently evaluate the suitability and test each
product selected for their own applications.
02.07.2018
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