TIW (3-layer insulated wires) | Electric Wires | Products

Feature

	The insulation of the wire, which is made up of three layers, completely isolates the primary from secondary of the transformer.
	Unlike conventional enameled wires, the TIW series is classified as a wire with three-layered, reinforced insulation (Whereas, SWW-2 is a wire with supplementary insulation) as generally provided for in various safety standards. Therefore, it eliminates barriers, interlayer tapes, and insulating tubes in a transformer.
	In addition to the reduction in size and economy in material cost of the tramsformer made, TIW has an advantage of improving its performance by reducing the distance between the coils.
	In joining the wires the insulation can be easily stripped off by manual operation. Therefore, the fusing of the three layers of insulation that may occur in soldering can be avoided. Furthermore, the insulation of TIW is strong enough to withstand high-speed winding on the automatic wire winder.

Structure

TIW-2 (Low-loss type)
We developed a wire with three-layered insulation, which makes low losses compatible with a high space factor and ensures easy-of-handling like single wires. The wire has reinforced insulation with tape that satisfies Class B heat-resistance requirements.

TIW-3 (Low-loss type)
We developed a wire with three-layered insulation, which makes low losses compatible with a high space factor and ensures easy-of-handling like single wires. The wire has reinforced insulation with tape that satisfies Class F heat-resistance requirements.

Features / Effect

1.	The integration of a special thin-film conductor into the transformer’s conductor reduces eddy-current losses generated inside the conductor, thereby resulting in low overall losses.
2.	Space saving is achieved due to the high performance of Litz-type wires. Winding wires is easier due to excellent flexibility.
3.	While retaining excellent ease of peeling, which is a major feature of the TIW series, peeling from the conductor is facilitated by the improved specifications of the tape material.
4.	Direct soldering can be done without stripping off the insulation.

Applications
These products demonstrate considerable effects in terms of loss reduction and mitigating temperature rises when used in switching power transformers,
which are widely used in industrial and consumer-use equipment.

Ex.)	Temperature-rise comparisons of AC adapter transformer (in-house comparison)

Ex.)	AC resistance change ratio (in-house comparison)

Structure and Size of TIW-2 (LL tipe) and TIW-3 (LL type)

	Outside Diameter (mm)		Max Conductor Resistance ( Ω/km)	Standard Weight (g/m)
Insulation Type	Reinforced Insulation			Reinforced Insulation
Conductor Size (mm)	TIW-2	TIW-3		TIW-2	TIW-3
0.33	0.53 ±0.04	0.53 ±0.04	284.3	0.76	0.76
0.36	0.55 ±0.04	0.56 ±0.04	236.6	0.94	0.94
0.41	0.60 ±0.04	0.61 ±0.04	179.8	1.19	1.19
0.46	0.64 ±0.04	0.64 ±0.04	143.8	1.48	1.48
0.51	0.69 ±0.04	0.69 ±0.04	114.8	1.78	1.78
0.56	0.73 ±0.04	0.74 ±0.04	94.3	2.13	2.13
0.61	0.78 ±0.04	0.78 ±0.04	79.5	2.52	2.52
0.65	0.82 ±0.04	0.82 ±0.04	69.6	2.78	2.78
0.71	0.88 ±0.04	0.88 ±0.04	57.9	3.29	3.29
0.81	0.96 ±0.04	0.98 ±0.04	44.4	4.31	4.31
0.91	1.10 ±0.04	1.10 ±0.04	34.9	5.52	5.52
1.00		1.20 ±0.04	28.2		6.75
1.01	1.17 ±0.04		28.2	6.68

TIW-2
A wire with a reinforced insulation insulated with tape that satisfies Class B heat-resistance requirements. The wire is finished with a small outside diameter. Soldering can be done without stripping off the insulation.

TIW-3
A wire with a reinforced insulation insulated with tape that satisfies Class F heat-resistance requirements. Available in a wide variety of combinations of wire with bobbin and impregnating materials.

TIW-4
A wire with a reinforced insulation insulated with tape that satisfies Class H heat-resistance requirements. Highest heat-resistance of the TIW series.

TIW-E
A wire with a reinforced insulation insulated with extruded fluoric resin that satisfies Class F heat-resistance requirements. Excellent resistance to voltages such as corona starting voltage.

TIW-2S
Small-diameter TIW-2 wire with a reinforced insulation insulated with tape that satisfies Class B heat-resistance requirements. Its small conductor size of 0.12 - 0.30 mm allows the size of a transformer to be reduced.

*Reference:
For wires with a tape-wound structure, the qualification “reinforced insulation” is certified on condition that the half-wrapped (doubled) or larger amount of one-layer tape is wound twice, the wire has the prescribed withstand voltage performance, and it successfully passes additional tests.

TIW-2LZ
A wire with reinforced insulation insulated with a tape that satisfies Class B heat-resistance requirements, which is equivalent to those of TIW-2 wire. A Litz wire is twisted with a polyurethane enameled wire (UEW). This wire has excellent high-frequency properties and a variety of sizes are available. (Inquire for details.)

TIW-3LZ
A wire with a reinforced insulation insulated with tape that satisfies Class F heat-resistance requirements, which are equivalent to those of TIW-3 wire. A Litz wire is twisted with a polyurethane enameled wire (UEW). This wire has excellent high-frequency properties and a variety of sizes are available. (Inquire for details.)

SWW-2
A wire with supplementary insulation insulated with tape that satisfies Class B heat-resistance requirements. This type of wire is mainly for use in power supply transformers of communication circuits. The conductor size is 0.12 - 0.30 mm.