Product Details

Specifications

Polyimide Film for Speaker Voice Coil
1.Color:Amber,Brown,Gold,Black,White,Clear
2.Application:Electronic&Electrical Industry

Product Name: Polyimide Film for Speaker Voice Coil

Polyimide film is a good H grade insulating material. It is widely used for insulation purpose in electrical appliances which are used in special environment. To use the polyimide film means reducing volume and weight of the electrical appliances while retaining the same output or increase the capacity without increasing in frame size. It can also prolong the service life of the electrical appliances and increase their reliability. Its long-term working temperature is over 200 °C.

The following properties of Polyimide Film ensure its good performance under extreme temperature or other conditions.

1. Good property of insulation and mechanism

2. Good temperature-resistant property, wide performance temperature range. It can be used under temperature from –60 °C to +250 °C for a long period and –269 °C to +400 °C for a short period without changing its electrical and mechanic properties.

3. Good chemical stability. It resists most organic solvents.

4. Excellent flame retardant property

5. Good radian-resistant property
6. Can be combined with many other materials. When combined with fluorine resin, its characters of wet and corrosion resistance are greatly improved.

Applications

Flexible Printed Circuits
Insulation
Automotive
Bar Code Labels
Aerospace
Safety
Transportation

Specifications

Measure tolerance

Film Type	Thickness Nominal micron(mil)*	Thickness Tolerance		Available Width		Nominal Unit Weight (g/m²)	Nominal Area Factor (m²/kg)
Film Type	Thickness Nominal micron(mil)*	Min. (micron)	Max. (micron)	Min. (mm)	Max. (mm)	Nominal Unit Weight (g/m²)	Nominal Area Factor (m²/kg)
SLP250	25(1mil)	23	28	8	1000	35.7	28
SLP300	30	27	33	8	1000	43	23.3
SLP400	40	37	43	8	1000	57	17.5
SLP500	50(2mil)	47	53	8	1000	71.4	14
SLP750	75(3mil)	72	78	8	1000	107.5	9.3
SLP1000	100(4mil)	96	104	8	1000	143	7
SLP1250	125(5mil)	120	130	8	1000	178.5	5.6
SLP1500	150(6mil)	145	155	8	1000	212.8	4.7
SLP1750	175(7mil)	168	182	8	1000	250	4
* Special thickness is also available upon request

Mechanical and Electrical Properties

Item		Unit	Value for each thickness					Method
Item		Unit	25 micron	50 micron	75 micron	100 micron	125 micron	Method
Tensile Strength, Min	MD	MPa (kg/in)	139 (9)	139 (18)	139 (27)	139 (36)	139 (45)	JB2726-96
Tensile Strength, Min	TD	MPa (kg/in)	120 (7.8)	120 (15.6)	120 (23.4)	120 (31.2)	120 (39)	JB2726-96
Elongation, Min		%	40	40	40	40	40	JB2726-96
Dielectric Strength at 50 Hz, Min	Average	KV/mm	150	150	150	150	150	JB2726-96
Dielectric Strength at 50 Hz, Min	Individual	KV/mm	100	100	100	100	100	JB2726-96
Volume Resistance at 200 °C, Min		Ohm.m	1x 10¹⁰	1x 10¹⁰	1x 10¹⁰	1x 10¹⁰	1x 10¹⁰	JB2726-96
Dielectric Constant at 50Hz			3.1-3.9	3.1-3.9	3.1-3.9	3.1-3.9	3.1-3.9	JB2726-96
Dielectric Dissipation Factor 50Hz, Max			0.004	0.004	0.004	0.004	0.004	JB2726-96