Solder Seal Heat Shrink Butt Connector
Solder Seal Heat Shrink Butt Connector
Join wires with TONFUL HXT solder seal heat shrink butt connectors. A transparent sleeve, central solder ring and meltable end rings are heated to form the splice and seal around the wire insulation.
- HXT series · 4 original catalog models
- Transparent heat-shrink sleeve
- Model-specific wire ranges and dimensions
- Samples and packaging reviewed with your enquiry
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Overview
Join wires with TONFUL HXT solder seal heat shrink butt connectors. A transparent sleeve, central solder ring and meltable end rings are heated to form the splice and seal around the wire insulation.
Compare 4 original catalog models below. Send the complete model number, conductor size and application so TONFUL can review your product enquiry.
Features
- Central solder ring: Position the overlapping conductors beneath the solder ring before applying heat.
- Transparent sleeve: Allows visual inspection of wire placement and solder flow.
- Meltable end rings: The sealing rings act around the wire insulation during the approved heating process.
- Four colour-coded models: Compare HXT-11, HXT-21, HXT-31 and HXT-41 in the original catalog table.
Technical Specifications
| Parameter | Specification |
|---|---|
| Series | HXT |
| Sleeve | Transparent heat-shrink sleeve |
| Joint component | Solder ring with flux |
| End seals | Meltable rings |
| Connection process | Controlled hot-air heating; no crimp barrel |
| Catalog wire range | 0.25–6 mm², depending on model |
Confirm voltage, temperature, inspection criteria and required documentation for the selected model and completed assembly.
Dimension
Dimensions are in millimeters unless otherwise indicated. Original model references and catalog values are preserved. On small screens, scroll the table horizontally.
| Item NO. | Dimension | Lead Section | Color | ||||
|---|---|---|---|---|---|---|---|
| A(min) | L(min) | B(min) | B and C (min) | C(min) | A.W.G(mm²) | ||
| HXT-11 | 1.7 | 26 | 1.0 | 1.7 | 0.8 | 26-24(0.25-0.34) | ● white |
| HXT-21 | 2.7 | 40 | 1.4 | 2.7 | 1.2 | 22-18（0.5-1.0） | ● red |
| HXT-31 | 4.5 | 40 | 2.3 | 4.5 | 2.0 | 16-14（1.5-2.5） | ● blue |
| HXT-41 | 6.0 | 40 | 3.7 | 6.0 | 3.4 | 12-10（4.0-6.0） | ● yellow |
The HXT table is retained as supplied. Confirm the sleeve formulation, heating profile and environmental documentation for the selected model. The legacy generic SST description used different wire ranges and material terms and is not treated as an HXT specification.
Selection Guide
Match the wire section to the selected HXT model and compare the original minimum dimensions. Slide the connector over the conductors and position their overlap beneath the central solder ring.
Prepare clean conductors, apply controlled hot air evenly and confirm solder flow and sleeve shrinkage according to the approved instructions. Allow the joint to cool before inspection. Do not substitute a crimping operation or direct flame for the specified heating process.
Applications
Potential uses include automotive harness repair, equipment wiring, lighting connections and marine wiring when the selected model and installation conditions are approved for the project.
Product compatibility and qualification depend on the model, installation process and approved assembly.
Ordering Information
Send the complete HXT model number, wire sizes, application and order quantity. Include your sample, inspection, packaging and documentation requirements.
Explore heat shrink terminals or contact TONFUL Electric to discuss product selection and supply.
Product photos are high-definition illustrative recreations of the original images. Confirm the supplied product against an approved sample.