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Dual-layer insulated wire

Name: Dual-layer insulated wire
Brand: DAH JIN 大晉科技
SKU: TLW-B2

ULVDESGS · RoHSB grade 130°CDirect solderableUL 2353

Dual-layer independent insulation winding wire (TLW-B2), belonging to the same approval series as flagship TLW-B; approved by UL E236542/VDE 40008834, specifications 0.10–1.00 mm, can be soldered directly.

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Specification Sheet

Dual-Layer Insulated Wire (ＴＬＷ－Ｂ２) Table 1

Conductor		insulation layer		Maximum Conductor Resistance 20℃Ω/km	Elongation Kg/km
Diameter (mm)	Tolerance (mm)	Target Overall Diameter (mm)	Tolerance (mm)	Maximum Conductor Resistance 20℃Ω/km	Elongation Kg/km
0.10	±0.008	0.26	±0.04	2264.7	10%
0.11	±0.008	0.27	±0.04	2153.0	10%
0.12	±0.008	0.28	±0.04	1786.0	10%
0.13	±0.008	0.29	±0.04	1505.0	10%
0.14	±0.008	0.30	±0.04	1286.0	10%
0.15	±0.008	0.31	±0.04	1111.0	10%
0.16	±0.008	0.32	±0.04	969.5	10%
0.17	±0.008	0.33	±0.04	853.5	10%
0.18	±0.008	0.34	±0.04	757.2	10%
0.19	±0.008	0.35	±0.04	676.2	10%
0.20	±0.008	0.36	±0.04	607.6	10%
0.21	±0.008	0.37	±0.04	549.0	10%
0.22	±0.008	0.38	±0.04	498.4	10%
0.23	±0.008	0.39	±0.04	454.5	10%
0.24	±0.008	0.40	±0.04	416.2	10%
0.25	±0.008	0.41	±0.05	382.5	10%
0.26	±0.01	0.42	±0.05	358.4	10%
0.27	±0.01	0.43	±0.05	331.4	10%
0.28	±0.01	0.44	±0.05	307.3	10%
0.29	±0.01	0.45	±0.05	285.7	15%
0.30	±0.01	0.46	±0.05	262.9	15%
0.32	±0.01	0.48	±0.05	230.0	15%
0.35	±0.01	0.51	±0.05	191.2	15%
0.37	±0.01	0.53	±0.05	170.6	15%
0.40	±0.01	0.56	±0.05	145.3	15%
0.45	±0.01	0.61	±0.05	114.2	15%
0.50	±0.01	0.66	±0.05	91.43	15%
0.55	±0.02	0.71	±0.05	78.15	15%
0.60	±0.02	0.76	±0.05	65.26	15%
0.65	±0.02	0.81	±0.05	55.31	15%
0.70	±0.02	0.86	±0.05	47.47	15%
0.75	±0.02	0.91	±0.05	41.19	15%
0.80	±0.02	0.96	±0.05	36.08	20%
0.85	±0.02	1.01	±0.05	31.87	20%
0.90	±0.02	1.06	±0.05	28.35	20%
0.95	±0.02	1.11	±0.05	25.38	20%
1.00	±0.03	1.16	±0.05	23.33	20%

Product Characteristics

TLW-B Specification Characteristics (per approval document UL E236542)

High-voltage resistant, direct-solderable, triple-layer independent insulation. The following are characteristics per the approval document; complete wire gauge specifications are shown in the specification table below.

Temperature ratingClass B (130°C)

Dielectric Breakdown Voltage> 12,000 V

Direct SolderabilityDirect tinning solderable, no stripping required

Pinholes0

Safety Registration NumberUL E236542

Reference SpecificationsCNS8938 · C3151 · UL2353 · UL1950

Structure Description

Conductor + Triple Independent Insulation = Reinforced Insulation

Triple-insulated wire extrudes three independent insulation layers sequentially over the copper conductor, each capable of independently passing insulation testing. When stacked in three layers, it qualifies as a winding wire component at the "Reinforced Insulation" level as defined in annexes such as IEC 62368-1 Annex J and IEC 61558-1 Annex K (actual status per corresponding certification documents), thereby allowing elimination of isolation tape and reduction of creepage distance during winding, resulting in smaller transformers and more streamlined winding processes.

Copper Conductor

Copper wire providing the primary conductive path.

First Insulation Layer (PET)

Polyester PET, basic insulation directly covering the conductor.

Second Insulation Layer (PET)

Second independent PET insulation, enhancing voltage withstand capability.

Third Insulation Layer (PA)

Outermost polyamide PA; three independent layers stacked achieve reinforced insulation level.

Application areas

Application Areas

Charger / switching-mode power supply transformerGeneral power supplyMedical device power supplyOn-board/EV charger (OBC) isolation transformerSolar micro-inverters / isolated convertersHome appliance / LED driver power supply

Certification Standards

Compliance and Certifications

ULValid
UL safety certification OTHERValid
Other Certifications SGSValid
IEC 62321 RoHS VDEValid
VDE German certification ISOValid
Quality management system

Applicable Standard: UL 2353; achieves IEC 62368-1 Annex J / IEC 61558-1 Annex K reinforced insulation level

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Other Insulation Wire Series

Triple-insulated wire TLW-B

DAH JIN flagship triple-insulated wire (models TLW-B/TLW-BB). Triple independent insulation achieves reinforced insulation grade, eliminating creepage distance restrictions between windings; high-voltage resistant, can be soldered directly (no need to strip outer layer first). Approved by UL E236542, VDE 40008834, temperature rating Class B 130°C, conductor wire diameter 0.10–1.50 mm.

Multiple Wire Gauge SpecificationsUL / VDE

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Single-layer insulated wire

Single-layer insulated economical winding wire (TLW-B1), suitable for general electronic transformer applications. Approved by UL E236542, conductor wire diameter 0.10–0.20 mm.

Multiple Wire Gauge SpecificationsUL / VDE

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Triple-insulated wire – stranded type

Triple-insulated wire (TLW-B7S) composed of 7 enameled wires (conductors) twisted together in concentric circular stranding; belongs to triple-insulated wire series, can be soldered directly, approved by UL E236542/VDE 40008834, suitable for high-frequency power supplies reducing skin effect.

Multiple Wire Gauge SpecificationsUL / VDE

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Class F triple-insulated wire

Class F triple-insulated wire (TLW-F): temperature rating Class F 155°C, specifications 0.10–1.00 mm, triple independent insulation achieves reinforced insulation grade, can be soldered directly, eliminating creepage distance restrictions between windings. Same approval series as TLW-B.

Multiple Wire Gauge SpecificationsUL / VDE

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