BC557 PNP Complementary Transistor
BC557 PNP transistor pairs with NPN types for push-pull audio amplifiers, with 500mW dissipation suitable for low-power signal processing. HTS 8541.21.00 applies to these non-photosensitive, low-dissipation transistors used in portable devices.
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If high-power PNP like TIP42
Higher dissipation PNP transistors classify separately.
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Unfinished semiconductor articles without final assembly go to parts heading.
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Import Tips & Compliance
• Submit paired NPN/PNP datasheets to demonstrate complementary low-power use
• Watch for anti-dumping duties on Asian-sourced silicon transistors; check current CVD status
• Ensure ESD-safe packaging to prevent damage claims during customs inspection
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