The THFU 5 is a Retaining Spring with stainless steel and snap-in mounting. This spring is used with TO-218, TO-220, TO-247, TO-248, TO 264, TO-3P, TO 262, SOT 199, SOT 429 and TO 202 transistor-housing. Suitable for SK 489, SK 490, SK 589 and SK 617 heat sinks.
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