Type UMTS , 250V UMF
Square Ceramic Surface Mount Time Lag Fuse
RoHS 6 Compliant
Electrical Specifications
UMTS May2012D
250mA 0.78 0.314 250 Y Y
315mA 0.56 0.279 250 Y Y
400mA 0.35 0.248 250 Y Y
UMTS 400
Agency Approvals
Typical Cold
Resistance
(ohm)
Ampere Rating
(A)
Catalog
Number
Maximum
Power
Dissipation
(W)
Melting I2T
@ 10 In
(A2 Sec)
Volt-drop
@100% In
(volt) Max.
Voltage
Rating
(V)
UMTS 250
UMTS 315
0.26
0.42
0.67
0.12
0.14
0.16
Interrupting Rating
Electrical Specifications
630mA 0.180 0.197 250 Y Y
800mA 0.132 0.175 250 Y Y
1A 0.085 0.156 250 Y Y
1.25A 0.065 0.139 250 Y Y
1.6A 0.061 0.110 250 Y Y
2A 0.043 0.108 250 Y Y
2.5A 0.035 0.106 250 Y Y
UMTS 1.6
UMTS 2
UMTS 2.5
9.2
15
UMTS 630
UMTS 800
UMTS 1
UMTS 1.25
1.7
2.8
4.4
7.0
0.33
0.25
0.50
5.6
100mA - 6.3A / 250V @150A AC and 350V
@100A AC
0.37
0.43
0.28
0.21
3.15A 0.025 0.104 250 Y Y
4A 0.020 0.101 250 Y Y
5A 0.014 0.099 250 Y Y
6.3A 0.011 0.097 250 Y Y
UMTS 6.3
UMTS 3.15
UMTS 4
UMTS 5
0.87
42
0.57
0.66
69
113
0.75
25
Consult manufacturer for other ratings
CORPORATE OFFICE FAR EAST OFFICE EUROPE OFFICE EUROPE
Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd. Bel Stewart GmbH
206 Van Vorst Street 8/F Luk Hop Industrial Building Preston Technology Management Centre Industriestrasse 20
Jersey City, NJ 07302 8 Luk Hop Street Marsh Lane, Suite F15 61381 Friedrichsdorf
Preston, Lancashire, PR1 8UQ
Preston, Lancashire, PR1 8UQ
Fax 201-432-9542 Kowloon, Hong Kong United Kingdom Tel 49-6172-9552-0
E-Mail: belfuse@belf.com Tel 852-2328-5515 Tel 44-1772-556601 Fax 49-6172-9552-40
Website: www. belfuse.com Fax 852-2352-3706 Fax 44-1772-561008