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Heavy Duty Type
Heavy Duty Type (Type W) thickens its entire body to increase heat storage and is the best for work needing high heat capacity.
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| Heavy Duty Type Only T12 series offers this type. For further details, click here. |
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| Standard |
Graph 1 : Soldering time depends on heat capacity
- Measurement conditions
| Measurement method | Solder at 5 points and measure the time until the temperature of the workpiece reaches 250ºC. |
| Board | Paper phenol copper |
| Component | Terminal (External diameter Φ8.5 / Internal diameter Φ4) |
| Tip shape | T12-D12 (Standard) and T12-WD12 (Heavy Duty Type) |
| Temperature setting | 360ºC |
| Solder | Lead-free solder (Sn-3Ag-0.5Cu) Φ0.5 |

Check the comparison graph of these types and Type L, which has larger heat capacity than Heavy Duty Type.
For further information of Type L, see 'Step 2 Select a tip with as large a heat storage capacity as possible'.
Graph 2 : Temperature difference of workpiece caused by heat capacity
- Measurement conditions
| Measurement method | Measure the temperature of the workpiece when 5-point soldering is performed once every 3 seconds. |
| Board | Glass epoxy board |
| Component | Connector |
| Tip shape | T12-D12 (Standard) and T12-WD12 (Heavy Duty Type) |
| Temperature setting | 360ºC |
| Solder | Lead-free solder (Sn-3Ag-0.5Cu) Φ0.8 |









