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Triple-insulated wire TLW-B

Name: Triple-insulated wire TLW-B
Brand: DAH JIN 大晉科技
SKU: TLW-B

ULVDESGS · RoHSB grade 130°CDirect solderableUL 2353

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.

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Specification Sheet

Triple-Layer Insulated Wire (ＴＬＷ－ＢB/TLW-B)

Conductor		insulation layer		Max Conductor Resistance 20℃Ω/km	Minimum Elongation (%)
Diameter (mm)	Tolerance (mm)	Target Overall Diameter (mm)	Max Target Overall Diameter (mm)	Max Conductor Resistance 20℃Ω/km	Minimum Elongation (%)
0.10	±0.008	0.30	0.335	2264.7	10％
0.11	±0.008	0.31	0.345	2153.0	10％
0.12	±0.008	0.32	0.355	1786.0	10％
0.13	±0.008	0.33	0.365	1505.0	10％
0.14	±0.008	0.34	0.375	1286.0	10％
0.15	±0.008	0.35	0.385	1111.0	10％
0.16	±0.008	0.36	0.395	969.5	10％
0.17	±0.008	0.37	0.405	853.5	10％
0.18	±0.008	0.38	0.415	757.2	10％
0.19	±0.008	0.39	0.425	676.2	10％
0.20	±0.008	0.40	0.417	607.6	10％
0.21	±0.008	0.41	0.427	549.0	10％
0.22	±0.008	0.42	0.437	498.4	10％
0.23	±0.008	0.43	0.447	454.5	10％
0.24	±0.008	0.44	0.457	416.2	10％
0.25	±0.008	0.45	0.467	382.5	10％
0.26	±0.01	0.46	0.477	358.4	10％
0.27	±0.01	0.47	0.487	331.4	10％
0.28	±0.01	0.48	0.497	307.3	10％
0.29	±0.01	0.49	0.507	285.7	15％
0.30	±0.01	0.50	0.520	262.9	15％
0.32	±0.01	0.52	0.540	230.0	15％
0.33	±0.01	0.53	0.550	202.8	15％
0.35	±0.01	0.55	0.570	191.2	15％
0.37	±0.01	0.57	0.590	170.6	15％
0.40	±0.01	0.60	0.625	145.3	15％
0.45	±0.01	0.65	0.675	114.2	15％
0.50	±0.01	0.70	0.725	91.43	15％
0.55	±0.02	0.75	0.775	78.15	15％
0.60	±0.02	0.80	0.825	65.26	15％
0.65	±0.02	0.85	0.875	55.31	15％
0.70	±0.02	0.90	0.925	47.47	15％
0.75	±0.02	0.95	0.975	41.19	15％
0.80	±0.02	1.00	1.030	36.08	20％
0.85	±0.02	1.05	1.080	31.87	20％
0.90	±0.02	1.10	1.130	28.35	20％
0.95	±0.02	1.15	1.180	25.38	20％
1.00	±0.03	1.20	1.230	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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Evaluating an alternative source for TEX-E? See the TEX-E cross-reference and second-source guide →

Other Insulation Wire Series

Dual-layer insulated wire

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.

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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