Brochure

© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
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
RoHS
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
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