A. Flexible Flat Cable (FFC) 

 

        “ Flexible Flat Cable”, the brief name is FFC. It is a kind of new data cable that it is to be make with PET insulate material and plate flat copper wire of tin thinly through the high technology equipments. It has many advantage, such as a soft, curve to fold at will, the thickness is thin, the physical volume is small 、link in brief and solve electromagnetism to shield (EMS) easily etc.

    It is the most suitable for move the parts to main board 、board to board ,make a data to deliver through a cable in the small scaled electric appliances equipments. The connection of the print head and main board in various printer is very extensively now , painting instrument, scanner, duplicator , stereo set, LCD electric appliances, facsimile machine, various video-disc machine etc.

 

　   Because the cost of the FFC cable is lower than FPC (Flexible Printing  Circuit ) , so its application        will become to more extensively. The FPC will be replaced with FFC in the most places that use FPC . We can be make to order base on  various length, size and do the EMI processing .

　

　

　

　　

 

           B. Flexible Flat Cable (FFC) Parameter

　

C. Flexible Flat Cable (FFC) Performance

Item	Symbol	Unit	Index
Pitch	P	mm	0.3	0.5	0.8	1.0	1.25	1.27	2.0	2.54
Number of conductor	N	core	15-119	8-150	4-90	4-70	4-70	4-70	4-40	4-40
Pitch tolerance		mm	±0.03	±0.03	±0.08	±0.08	±0.01	±0.01	±0.01	±0.01
Cable width	W	mm	(N+1)x0.3±0.03	(N+1)x0.5 ±0.08	(N+1)x0.8±0.10	(N+1)x1.0 ±0.15	(N+1)x1.25±0.2	(N+1)x1.27±0.2	(N+1)x2.0±0.3	(N+1)x2.54±0.35
Total pitch	Pt	mm	(N-1)x0.3±0.03	(N-1)x0.5±0.08	(N-1)x0.8±0.10	(N-1)x1.0±0.15	(N-1)x1.25±0.2	(N-1)x1.27±0.2	(N-1)x2.0±0.3	(N-1)x2.54±0.35
Edge width tolerance		mm	±0.03	±0.05	±0.08	±0.08	±0.1	±0.1	±0.1	±0.1
Plugging length	S1-S2	mm	2±0.5 3±0.5      4±0.5      5±1    6±1
Reinforcing board length	S3-S4	mm	4-7±1     8-15±2     16-20±3
Cable length	L	mm	L<200mm±3     200< L >400±5     L >400±8
Plugging end thickness	T	mm	0.27-0.36±0.05
Conductor thickness	Ct	mm	0.05	0.035/0.05	0.035/ 0.05/0.1	0.035/ 0.05/0.1	0.05/0.1	0.05/0.1	0.05/0.1	0.05/0.1
Conductor width	Cw	mm	0.02	0.3±0.03	0.65±0.03 0.80±0.03	0.65±0.03  0.80±0.03	0.65±0.03 0.8±0.03	0.65±0.03 0.8±0.03	0.65±0.03 0.8±0.03	0.65±0.03 1.27±0.03
Material of insulating layer			PET white/black  thickness 0.043mm、0.06mm、0.08mm、0.092mm、0.10mm、0.15mm
Material of reinforcing        board			PET blue/black thickness 0.16mm、0.225mm、0.282mm
Item		Method of measurement	0.1×1.27	0.1×0.8	0.1×0.7	0.05×0.8	0.05×0.65	0.05×0.5	0.035×0.65	0.035×0.3
Conductor impedance (Ω/M)		JIS C-3102at 20℃	0.1	0.26	0.33	0.52	0.63	0.68	0.7	1.5
Insulation Impedance		DC500V at 20℃	>100MΩ 100MΩ above
Line to line insulation voltage endurance		DC500V for 1 min	no conduction
Rated voltage/temperature			60V/80℃
Rated current			1.25A			1A			0.5A
Energized		Energized machine test DC3.0V 0.1mA	no turn off and short circuit
Aging		85℃ , 96hrs	insulation impedance and line to line insulation voltage endurance are normal
Temperature test cycle		-40℃ for 4hrs-> 85℃ for 4hrs-> 25℃ for 1hrs(5cyc)	insulation impedance and line to line insulation voltage endurance are normal
Moisture proof		40℃ 95%RH 96hrs	insulation impedance and line to line insulation voltage endurance are normal
Flexibility test		180° flexual 15mmR 1000Cycles /min 25mm stroke	>20Cycles  >100,000Cycles
insulator	Elongation	JIS-K-6732	Min60%  above 60%
	Tensile strength	JIS-K-6732	Min3.5Kg/sq.mm   above 3.5Kg/sq.mm
Abrasion test		Ф0.5mm, 600g 60cyc./min	>10,000Cycles
Burning test		UL758	pass UL vw-1
Time of plugging			≥20times

　

 

　

D. Flexible Flat Cable (FFC) Shape