Introduction
The document introduces the world's first 150W and 300W high-power soldering irons equipped with an automatic solder feeder, designed for applications requiring large thermal capacity.

Specifications
- Compatible with solder wire diameters up to 2.0 mm.
- Can be used as an automatic solder feeding device for solder baths (optional).
- Nitrogen gas application is possible with Black Solder Jr.III (optional).
- Turbo heating function to maintain tip temperature during soldering.
- Optional foot switch allows for hands-free operation.

Features
- One-handed operation allows the user to hold parts and wires with the other hand.
- Suitable for lead-free soldering, power supply units, shielding cases, and large diameter coils.
- Large thermal capacity with 150W or 300W heaters.
- Strong heating function to prevent temperature drop during soldering of large components.

Model Specifications
USJ-781
- Power Supply: AC100V±10% 50-60Hz
- Power Consumption: 50W + Heater wattage
- Temperature Range: 200℃ to 450℃
- Modes: Manual, Automatic, Turbo, Solder bath
- External Terminal: For optional foot switch
- Solder Diameter: 0.5mm to 2.0mm
- Dimensions: 98(W) x 106.5(H) x 266(D) mm
- Weight: 2 Kg

MJL3-15W-**(LL type)/MJL3-30W-** (XL type)
- Heater Power: 150W (LL type) / 300W (XL type)
- Insulation Resistance: 100MΩ or more
- Cord Length: 1.1m
- Sensor: K type (CA thermocouple)
- Weight: 230g (LL type) / 350g (XL type)

Additional Information
- The catalog content is as of January 2006, and specifications may change without notice.
- Contact information for the head office and various sales offices is provided.
- Optional accessories include a hand piece stand (Model: SJK-3).