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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Axial Lead & Cartridge Fuses
5×20 mm > Time-Lag > 477 Series
477 Series, 5×20 mm, Time-Lag Fuse
RoHS
Pb
PS
E
Features
Applications
Agency Approvals
Agency Agency File Number Ampere Range
PS
E
Cartridge:
NBK040609-JP1021A
NBK040609-JP1021C
NBK100408-JP1021A
Leaded:
NBK040609-JP1021B
NBK040609-JP1021D
NBK100408-JP1021B
1A – 5A
6.3A – 12A
16A
1A – 5A
6.3A – 12A
16A
1219190 0.500A – 8A
E10480
0.5A – 5A(600VAC)
0.5A – 16A(400VDC)
6.3A – 16A(500VAC)
40025413
1A, 3.15A (500VAC)
1A, 3.15A (400VDC)
J50248089 10A/12A/16A
N/A 0.500A – 16A
Electrical Characteristics for Series
% of Ampere
Rating
Ampere
Rating
Opening Time
150%
.5 - .8 60 minutes, Minimum
1 - 3.15 60 minutes, Minimum
4 - 6.3 60 minutes, Minimum
8 - 16 30 minutes, Minimum
210%
.5 - .8 30 minutes, Maximum
1 - 3.15 30 minutes, Maximum
4 - 6.3 30 minutes, Maximum
8 - 16 30 minutes, Maximum
275%
.5 - .8 .25 sec., Min.; 80 sec. Max.
1 - 3.15 .75 sec., Min.; 80 sec. Max.
4 - 6.3 .75 sec., Min.; 80 sec. Max.
8 - 16 .75 sec., Min.; 80 sec. Max.
400%
.5 - .8 .05 sec., Min.; 5 sec. Max.
1 - 3.15 .095 sec., Min.; 5 sec. Max.
4 - 6.3 .15 sec., Min.; 5 sec. Max.
8 - 16 .15 sec., Min.; 5 sec. Max.
1000%
.5 - .8 .005 sec., Min.; .15 sec. Max.
1 - 3.15 .01 sec., Min.; .15 sec. Max.
4 - 6.3 .01 sec., Min.; .15 sec. Max.
8 - 16 .01 sec., Min.; .15 sec. Max.
High energy and power efficient applications.
400Vdc/500Vac rated, 5x20mm, time-lag, surge withstand
ceramic body cartridge fuse.
• Designed to International
(IEC) Standard for use
globally.
• Follow the IEC 60127-2,
Sheet 5 specification for
time-lag fuses
• Available in cartridge and
axial lead form
• RoHS compliant and
lead-free
Description
Application testing is strongly recommended.
Additional Information
Datasheet
Samples
Resources