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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Axial Lead & Cartridge Fuses
6x25mm > 70VDC Fuse > 688 Series
Agency Agency File Number Ampere Range
T 50257715 01 30A
E10480 5A - 40A
688 Series Lead-Free, 6x25mm Fuse
A 70Vdc rated ceramic fuse with remarkable interrupting
rating in a compact 6x25mm package, which is well suited
for circuit protection in telecom applications.
Agency Approvals
Features
Electrical Characteristics for Series
Applications
% of Ampere
Rating
Ampere Rating Opening Time
100%
5A - 40A
4 Hours, Min.
200% 120 Second, Max.
RoHS
Pb
Amp Code Amp Rating Voltage Rating
Interrupting
Rating
Nominal Cold
Resistance
(mOhms)
Nominal
Melting I
2
t
Under 10In (A
2
sec)
Agency Approvals
005. 5 70Vdc 2500A @ 70Vdc 22 118 x
006. 6 70Vdc 2500A @ 70Vdc 21 132 x
010. 10 70Vdc 2500A @ 70Vdc 10 570 x
015. 15 70Vdc 2500A @ 70Vdc 6 554 x
030.* 30 70Vdc 2500A @ 70Vdc 2.1 4200 x x
040.* 40
70Vdc
250Vac
2500A @ 70Vdc
1500A @ 250Vac
1.55 7800 x
Electrical Characteristic Specifications by Item
• PDU in Telecom Datacenter
• Wireless Transmission Base Station
Description
• In accordance with Underwriter’s Laboratories
Standard UL 248-14
• Available in cartridge version
• RoHS compliant and Lead-free
Note: *Surge rating: 1.2/50-8/20μs, 20KV/10KA surge is available for 30A and 40A.
Application testing is strongly recommended.
Additional Information
Datasheet
Samples
Resources