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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Cartridge Fuse Blocks
22.6 ±.2 [.89]
12.0 +0/-.3
[.47]
3 [.12]
13
[.51]
.5 [.02]
15 ±.1 [.59]
9 [.354]
3.5 +.2/-0
[.138]
1.35
[.053]
1 [.04]
1
[.04]
17.8 ±.2
[.70]
4 [.16]
5.4
[.213]
7. 3
[.29]
Dimensions of holes in the printed circuit board.
Thickness of printed circuit board: 1.6 ±.14 [.063 ±.005]
15 +.25/-0
[.59 +.01/-0]
2.6 +.05/-0
[.102 +.004/-0]
1.3 ±.05
[.051 +.004/-0]
Dimensions in millimeter [inch]
Compatible
Fuse Size
5 × 20 mm standard cartridge fuse
Ordering Number 649 0000 1039 649 0000 3039
Materials
Holder:
White Thermoplastic, PBT
UL94 V-0
Holder:
Grey Thermoplastic, PA 66
UL94 V-0
Metal Parts: Tin Plated Copper Alloy
Electrical Data
Rated Voltage: 250V
Max. Current/Power: 6.3A/1.6W
Mounting Solder pins 0.5 x 1.0mm and plastic stud
Operating
Temperature
-30ºC to +85ºC
Stock Conditions
+10ºC to +60ºC relative humidity ≤ 75% yearly average,
without dew, maximum value for 30 days - 95%
Contact
Resistance
≤ 5mΩ
Isolation
Resistance
10
2
MΩ
Solderability 235ºC, 2 sec. (soldering bath; IEC 60068-2-20)
Soldering Heat
Resistance
260ºC, 10 sec. (soldering bath; IEC 60068-2-20)
Minimum Cross
Section
Conducting path - 0.2mm
2
Unit Weight 1.2g
RoHS
Pb
Product Specifications
Dimensions
Agency Approvals
Agency Agency File Number
E14721
40015067
NOTES:
1) Ensure that proper fuse re-rating is factored in fuseholder selection.
2) The plastic material used in #649 0000 3039 is GWIT and GWFI compliant.
Ordering Information
Ordering PN Description Packaging
649 0000 1039 Block Holder for 5×20 big box Bulk (3000pcs)
649 0000 3039 Block Holder for 5×20 MM GW Bulk (3000pcs)
649 Series Molded Fuse Block, PC Mount for 5×20mm Fuses
Application testing is strongly recommended.
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
Additional Information
Datasheet
Samples
Resources