Littelfuse 646 Series User Manual
Cartridge fuse blocks
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Cartridge Fuse Blocks
Contact Littelfuse for an auto-insertable fuse, holder and adapter assembly.
Note: 1.00 means the number one with two decimal places. 1,000 means the number one
thousand.
Compatible Fuse Sizes
For 5×20mm Fuses
Leadfree
Materials
Holder: Black Thermoplastic, UL94 V-0
Polyamide PA 6.6
Cover: Transparent Thermoplastic,UL94 V-0,
Polycarbonate PC
Adapter: Polyester PBT, UL94 V-0
Metal Parts: Tin plated opper alloy
Electrical Data (23ºC)
Rated Voltage: 250V
Max. Current/Power: 6.3A/2.5W 5A/1W
(with No. 648) 6.3A/1.6W (with No. 640)
Mounting
Solder pins 0.5mm×1.2mm
Ø 3mm screw hole may be used optionally
Hand adapter can be optionally used with
Holder No. 646 and 647
Minimum Cross Section
Conducting path - 0.2mm
2
Unit Weight
1.6g (Holder), 1.0g (Cover),
1.0g (Adapter)
646 Series Molded Base Fuse Block For 5×20mm Fuses
Product Characteristics
Dimensions
Pic1
Pic2
648 Cover
(optional Cover)
646 series Holder
640 adapter
(optional adapter)
Ordering Information
Ordering pN
Description
640 0000 1003
Adaapter - Black
640 0000 1403
Adaapter - Brown
640 0000 1503
Adaapter - White
640 0000 1603
Adaapter - Yellow
640 0000 1703
Adaapter - Green
640 0000 1903
Adaapter - Blue
640 0000 1101
Adaapter - Purple
640 0000 1201
Adaapter - Orange
640 0000 1801
Adaapter - Red
648 0000 1001
Optional cover
Ordering pN
Description
pic
meas. "A"
for pCb-
thickness
646 0000 1003
Fuse Block
1
5mm
3mm
646 0000 1223
Fuse Block
1
3.2mm
1.5mm
646 0000 1233
Fuse Block
2
3.3mm
1.5mm
Ordering pN
Description
Fuse pN
block pN
646 1200 7113
Fuse & Block Assy.
0215002.MXP
6460001233
646 1200 7123
Fuse & Block Assy.
0219002.MXAP
646 1400 7143
Fuse & Block Assy.
0218004.MXP
646 1400 7183
Fuse & Block Assy.
0215004.MXP
Additional Information