Technical Data
2051
Effective
June
2017
Supersedes
March
2011
S501
5 mm x 20 mm Fast-acting ceramic tube fuses
Agency information
•
•
•
•
•
•
•
cURus: File E19180, Guide JDYX2, JDYX8
CSA Component Acceptance: File 53787
SEMKO Approval: File 413779
VDE Approval: File 40015517
IMQ Approval: File EB405
CCC Approval: File 2005010207155691
BSI Approval: File KM55676
Product features
Fast-acting high breaking capacity
Optional axial leads available
5 mm x 20 mm physical size
Ceramic tube with silver-plated (50 mA-400 mA) and
nickel-plated (500 mA-10 A) endcaps.
•
Designed to IEC 60127-2
•
•
•
•
Ordering
information
•
Specify packaging, product and option code
•
Ratings above 6.3 A have a 0.8 mm diameter lead
•
With TR2 packaging code, lead wire length is 19.05 mm
In
50mA-4A
5A-6.3A
8A-10A
Electrical Characteristics
1.5 In 2.1 In
2.75 In
4 In
min
max
min
max
min
max
60 min 30 min 10 ms 2 sec 3 ms 300 ms
60 min 30 min 10 ms 3 sec 3 ms 300 ms
30 min 30 min 40 ms 20 sec 10 ms
1s
10 In
max
20 ms
20 ms
30 ms
Product
Code
S501-50-R
S501-63-R
S501-80-R
S501-100-R
S501-125-R
S501-160-R
S501-200-R
S501-250-R
S501-315-R
S501-400-R
S501-500-R
S501-630-R
S501-800-R
S501-1-R
S501-1.25-R
S501-1.6-R
S501-2-R
S501-2.5-R
S501-3.15-R
S501-4-R
S501-5-R
S501-6.3-R
S501-8-R
S501-10-R
Voltage Interrupting Rating at
Rating Rated Voltage (50Hz)
Vac
Vac
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
250
1500
Typical DC
Cold Resistance
(Ω)*
157.5
39.0
27.9
20.0
12.3
8.5
6.0
4.4
3.3
2.2
0.460
0.340
0.245
0.231
0.176
0.113
0.073
0.053
0.037
0.027
0.019
0.014
0.009
0.008
Specifications
Typical
Typical
Melting I
2
t Voltage
(amps)
Drop (mV)†
0.0017
9000
0.0005
3300
0.0011
2600
0.0018
2300
0.0037
1900
0.008
1600
0.02
1350
0.027
1300
0.01
1400
0.018
1200
0.038
1050
0.064
1200
0.097
490
0.146**
330
0.313**
297
0.748**
239
2.0
205
3.9
190
8.1
160
14
160
25
155
48
150
104
102
155
111
Agency Approvals
IMQ VDE BSI SEMKO cURus
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
CCC
X
X
MITI/
JET
CSA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X‡
X‡
X‡
X‡
X‡
X
X
X
* DC Cold Resistance (measured at <10% of rated current)
** I
2
t of 1A, 1.25A & 1.6A is measured at 10I
n DC
† Typical Voltage Drop (voltage drop was measured at 20°C ambient temperature at rated current)
‡ CSA approvals on these ratings will not be marked on the fuse cap
Effective
June
2017
Technical Data
2051
S501
5 mm x 20 mm Fast-acting ceramic tube fuses
Time -Current Curve
Dimensions - mm
Drawing Not to Scale
Packaging Code
BK
BK1
TR2
Description
100 fuses packed into a cardboard carton
1000 fuses packed into a poly bag
1500 fuses packed into tape on a reel (19.05 mm lead wire length)
Packaging Code
Option Code
V
Description
Axial leads - copper tinned wire with nickel-plated brass endcaps
Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written
approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly
used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also
reserves the right to change or update, without notice, any technical information contained in this bulletin.
Option Code
Eaton
Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/electronics
© 2017 Eaton
All Rights Reserved
Printed in USA
Publication No.
2051
BU-SB11296
June
2017
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
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