57
Electronic
Fuses
Electronic fuses
Section Contents
Page
5 x 15mm ferrule fuses . ..................... 58
5 x 20mm European (IEC) ferrule fuses ........59-60
5 x 20mm North American (UL) fer r ule fuses  ..... 61
1
⁄4˝ Dia. x 
5
⁄8˝ to 1˝ length ferr ule fuses  ........... 62
1
⁄4˝ Dia. x 1 
1
⁄4˝ length fast-acting ferr ule fuses ...... 63
1
⁄4˝ Dia. x 1 
1
⁄4˝ length time-delay ferr ule fuses ...... 64
PCB mount fuse holders ...................65-66
PCB fuseclips for 5mm dia. fuses .............. 67
PCB fuseclips for 
1
⁄4˝ dia. fuses ................ 68
PCB fuseclips for 
13
⁄32˝ dia. and ATC
®
fuses ....... 69
PCB fuseclips for 
1
⁄4˝,
9
⁄32˝,
13
⁄32˝ & 
9
⁄16˝ fuses  ........ 70

C517 (axial leads)
Specifications
Description: Fast-acting
fuse.
Construction: Glass tube.
Ratings:
Volts — 350Vac*
Amps — 3A
IR — 100A @ 350Vac 
— 100A @ 250Vac 
— 10kA @ 125Vac
*350Vac/100A is UL Recognized
Agency Information:
CE, UL Listing File
E19180, Guide JDYX,
CSA Certification File
53787, Class 1422-01,
UL Recognized, File E19180, Guide
JDYX2.
• Small footprint saves space in 
equipment.
• Fast-acting for maximum component
protection.
• 350Vac rating for 277V ballast circuit
protection.
Typical Applications
• Electronic Circuits
• Printed Circuit Boards
• Electronic Ballast Protection
Catalog Number (Amps)
With Axial Leads
C517-3-R
C518 (axial leads)
C520
Specifications
Description:
Fast-acting fuse.
Dimensions:
5 x 15mm 
(0.197” X 0.591”).
Construction:
Glass tube.
Ratings:
Volts — 250Vac
Amps — 100mA-5A
IR — 35A (100mA-750mA @
250Vac)
— 10kA (100mA-5A @ 125Vac) 
— 100A (1.5-3.5A @ 250Vac)
— 200A (4-5A @ 250Vac)
Agency Information: CE,
UL Recognized File E19180, Guide 
JDYX2CSA Certifica tion File 53787,
Class 1422-01.
Features and Benefits
• Small footprint saves space in
equipment.
• Fast-acting for maximum component
protection.
• Available in fer r ule and axial leaded 
configurations
Typical Applications
• Electronic Circuits
• Printed Circuit Boards
Catalog Numbers (Amps)
With Axial Leads
C518-100-R C518-750-R C518-4-R
C518-125-R C518-2-R C518-5-R
C518-250-R C518-2.5-R
C518-375-R C518-3-R
C518-500-R C518-3.5-R
Without Axial Leads
C520-100-R C520-750-R C520-3.5-R
C520-125-R C520-1.5-R C520-4-R
C520-250-R C520-2-R C520-5-R
C520-375-R C520-2.5-R
C520-500-R C520-3-R
C515 (axial leads)
C519
Specifications
Description:
Time-delay fuse.
Dimensions:
5 x 15mm 
(0.197” X 0.591”).
Construction:
Glass tube.
Ratings:
Volts — 125Vac
(3.5-7A)
— 250Vac
(125mA-3A)
Amps — 125mA-7A
IR — 25A (350mA @ 600Vac)
— 35A (125mA-1A @ 250Vac) 
— 100A (1.25-3A @ 250Vac) 
— 400A (3.5-7A @ 125Vac)
— 10kA (125mA-3A @ 125Vac) 
Agency Information: CE, UL Listed
File E19180, Guide JDYX 
125mA-250mA and 375mA-3A, UL
Recognized, File E19180, Guide
JDYX2, 350mA and 3.5A-7A, CSA
Certification File 53787, Class 
1422-01, 125mA-250mA and 
375mA-3A.
Features and Benefits
• Time-delay for closer sizing on
inductive circuits.
Typical Application
• Electronic Circuits
• Printed Circuit Boards
Catalog Numbers (Amps)
With Axial Leads
C515-125-R C515-800-R C515-2.5-R
C515-250-R C515-1-R C515-3-R
C515-350-R C515-1.25-R C515-3.5-R
C515-375-R C515-1.5-R C515-4-R
C515-500-R C515-1.6-R C515-5-R
C515-600-R C515-2-R C515-6-R
C515-750-R C515-2.25-R C515-7-R
Without Axial Leads
C519-125-R C519-750-R C519-2.25-R
C519-250-R C519-1-R C519-2.5-R
C519-350-R C519-1.25-R C519-3-R
C519-375-R C519-1.5-R C519-3.5-R
C519-500-R C519-1.6-R C519-4-R
C519-600-R C519-2-R C519-5-R
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
58
Electronic — PCB & Small Dimension Fuses
5 x 15mm Fer rule Fuses
Data Sheet: 2025
Data Sheet: 2026 (C518) & 2027 (C520)
Data Sheet: 2006 (C515) & 2007 (C519)

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
59
Electronic
Fuses
Electronic — PCB & Small Dimension Fuses
5 x 20mm European (IEC) Fer rule Fuses
S500-V (GDB-V)* (axial leads)
S500 (GDB)*
Specifications
Description: Fast-
acting, low-breaking
capacity fuse.
Construction:
Glass tube, nickel-
plated brass endcaps
(silver-plated end-
caps, 32-125mA).
Ratings:
Volts — 250Vac (or less)
Amps — 32mA-10A
IR — See catalog ta ble
Agency Information: CE,
cURus ,
CSA,
SEMKO, VDE, BSI, IMQ , CCC .
See data sheet for complete agency 
informa tion. Not all approvals apply to all
ratings.
Features and Benefits
• Fast-acting for maximum protection,
conforms to IEC 60127-2 (160mA-10A).
Typical Applications
• Electronic Circuits
Catalog Numbers (Amps)
Catalog IR Max Voltage
Numbers (Amps) I
2
t Drop (mV)
S500-32-R 35 0.000047 3200
S500-40-R 35 0.00011 2500
S500-50-R 35 0.00020 2400
S500-63-R 35 0.00057 2000
S500-80-R 35 0.0012 1200
S500-100-R 35 0.003 1100
S500-125-R 35 0.005 1000
S500-160-R 35 0.008 2000
S500-200-R 35 0.016 1700
S500-250-R 35 0.028 1400
S500-315-R 35 0.058 1300
S500-400-R 35 0.018 1100
S500-500-R 35 0.018 220
S500-630-R 35 0.035 220
S500-800-R 35 0.067 190
S500-1-R 35 0.60 200
S500-1.25-R 35 0.84 200
S500-1.6-R 35 1.6 190
S500-2-R 35 4.2 150
S500-2.5-R 35 6.1 150
S500-3.15-R 35 13 130
S500-4-R 40 22 130
S500-5-R 50 42 120
S500-6.3-R 63 69 120
S500-8-R 80 - 120
S500-10-R 100 —- 120
Options
Axial leads, put “V” in P/N,
*When ordering GDB ver sion, do not
add “-R” suffix to part number.
S501-V (GDA-V)* 
(axial leads)
S501 (GDA)*
Specifications
Description: Fast-
acting, high-breaking
capacity fuse.
Construction:
Ceramic tube, 
nickel-plated brass
endcaps (silver-
plated endcaps 50mA-400mA).
Ratings:
Volts — 250Vac (or less)
Amps — 50mA-10A**
IR — 1500A @ 250Vac
Agency Information: CE, cURus,
SEMKO, VDE, IMQ, CCC, CSA, BSI.
See data sheet for complete agency
informa tion. Not all approvals apply to
all ratings.
Features and Benefits
• Fast-acting for maximum protection.
• High break capacity for use in higher
fault energy electronic circuitr y.
• Conforming to IEC standards.
Typical Applications
• Electronic Circuits
Catalog Numbers (Amps)
Catalog Typical Voltage
Numbers I
2
t Drop (mV)
S501-50-R 0.0017 9000
S501-63-R 0.0005 3300
S501-80-R 0.0011 2600
S501-100-R 0.0018 2300
S501-125-R 0.0037 1900
S501-160-R 0.008 1600
S501-200-R 0.020 1350
S501-250-R 0.027 1300
S501-315-R 0.010 1400
S501-400-R 0.018 1200
S501-500-R 0.038 1050
S501-630-R 0.064 1200
S501-800-R 0.097 490
S501-1-R 0.146 330
S501-1.25-R 0.313 297
S501-1.6-R 0.748 239
S501-2-R 2.0 205
S501-2.5-R 3.9 190
S501-3.15-R 8.1 160
S501-4-R 14 160
S501-5-R 25 155
S501-6.3-R 48 150
S501-8-R N/A N/A
S501-10-R N/A N/A
Options
Axial leads, put “V” in P/N.
*
When ordering GDA version, do not
add “-R” suffix to part number.
**GDA is not available above 6.3A.
Data Sheet: 2052 (S500), 2015 (GDB)
Data Sheet: 2051 (S501), 2014 (GDA)
S505-V 
(axial leads)
S505
Specifications
Description: Time-
delay, high-breaking
capacity fuse.
Construction:
Ceramic tube, silver-
plated brass endcaps.
Ratings:
Volts — 250Vac (or less)
Amps — 500mA-12A
IR — 1500A @ 250Vac
Agency Information: UL, CSA,
SEMKO, VDE, BSI, IMQ, PSE/JET,
CCC, EK, FIMKO.
See data sheet for complete agency
informa tion. Not all approvals apply to
all ratings.
Features and Benefits
• Time-delay performance ideal for
inductive circuits.
• Conforming to IEC standards.
Typical Applications
• Electronic Circuits
Catalog Numbers (Amps)
Catalog Typical Max Voltage
Numbers I
2
t Drop (mV)
S505-500-R 0.188* 295
S505-800-R 0.632* 189
S505-1-R 1.28 152.5
S505-1.25-R 2.22 150
S505-1.6-R 6.78 125
S505-2-R 9.60 118.5
S505-2.5-R 16.60 115
S505-3.15-R 36.60 102.5
S505-4-R 38.45* 86.5
S505-5-R 71.30* 77.5
S505-6.3-R 197 75
S505-8-R 311 75
S505-10-R 397 72
S505-12-R 713.7* 77
*The typical I
2
t value was measured at 10 times of rated
current under DC
Options
Axial leads, put “V” in P/N.
Data Sheet: 2037