© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/28/16
Cartridge Fuse Blocks
Contact Littelfuse for an auto-insertable fuse, holder and adapter assembly.
ø 2
16
24.5
9
4.7
22.5
10.4
1
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
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 Copper 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
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
Pb
Product Characteristics
Dimensions
Pic1 Pic2
648 Cover
(Optional Cover)
646 Series Holder
640 Adapter
(Optional Adapter)
Ordering Information
Ordering PN Description
640 0000 1003 Adapter - Black
640 0000 1403 Adapter - Brown
640 0000 1503 Adapter - White
640 0000 1603 Adapter - Yellow
640 0000 1703 Adapter - Green
640 0000 1903 Adapter - Blue
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
Application testing is strongly recommended.
Recommended Hole Pattern
Additional Information
Datasheet
Samples
Resources
Fuseholder
obsolete
per datasheet project
Nov 2014
