1. Flexstrip Cable RFC(Round Flat Cable) JUMPERS



          Round flat cable/Jumpers, the brief name is RFC. It is a kind of new data cable that it is to be make with Nomex paper, PET insulate material and plate round-flat copper wire of tin thinly. It can communicate in two PCB with 
welding and not need connector. it has many advantage, such as temperaturer-resistant, a flexible, curve to fold , the thickness is thin, link in brief and so e electromagnetism to shield (EMI) 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 ,instrument, PLC, scanner, Auto Lamp electric appliances and various electronic equipment etc.


2. Jumper Cable(RFC) Specification


Symbol Unit Parameter
Picth P mm 1.27mm 2.0mm 2.54mm 3.18mm 3.81mm 5.08mm
Pitch tolerance   mm ±0.1 ±0.1 ±0.1 ±0.1 ±0.1 ±0.1
Number of conductor


core   2-30 2-30 2-30 2-25 2-20 2-15
Dia. of conductor D mm 0.3 0.4 0.5 0.5 0.5 0.5
Edge width M mm 1.27 1.27 2.54 2.54 2.54 2.54
Thickness of body T mm 0.28 0.28 0.28 0.28 0.28 0.28
Pl ing length S1-S2 mm 3±0.5     3.5±0.5      4±0.5      5±1
Insulation length IL


 L>12mm±2   200mm< L >400mm±2     L >400mm±2
Material of insulation layer      PET:0.06,0.08,0.1mm     Nomex:0.08mm and others


3. Jumper Cable(RFC) Electric Performace


Method of test

Dia. 0.3-0.4-0.5mm tinnig copper

Conductor impedance (Ω/M)

JIS C-3102at 20℃


Insulation impedance

DC500V at 20℃


Line to line insulation voltage endurance

DC500V for 1min

 No conduction

Rated voltage/temperature



Rated current


1.6A / 2A / 3A


Energized machine test
DC3.0V 0.1mAA

 no turn off and short circuit


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




Min60%  over60%

Tensile strength


Min3.5Kg/sq.mm  over3.5Kg/sq.mm

Abrasion test

Ф0.5mm, 600g


Burning test


pass UL vw-1


4. Shape of RFC