Designed and assembled in the United States · individually tested · no tariffs

Hakko FR301 JP-to-US 120V Conversion Kit
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TOOLS · 44081

Hakko FR301 JP-to-US 120V Conversion Kit

Two 300Ω 2W resistors that let a Japanese 100V Hakko FR301 run on US 120V without a step-down transformer.

$9.99

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Two high-surge metal-oxide 300Ω 2W resistors for imported Hakko FR301-81 and FR301-82 desoldering guns. The ceramic heater tolerates 120V. The internal vacuum pump does not — on a US outlet it spins about 20% fast and burns out. Installed in parallel at R20 and R21, these two resistors form a 150Ω drop that puts the pump back on its 100V rails. KOA Speer flame-retardant parts, packed flat on cardboard inside a padded mailer so the leads stay straight.

FitsHakko FR301-81 and FR301-82 (100V Japan)
PartsTwo 300Ω 2W 5% metal-oxide resistors
InstallParallel at R20 and R21
Result150Ω drop for the DC pump on 120V
MakerKOA Speer