3PEAK

3PEAK is a Shanghai-based analog specialist whose parts fill the signal-chain and interface slots on industrial and consumer boards, and the five profiles here span both sides of that range. The interface side is the TP8485E-SR, a 3.3 V RS-485 transceiver in SOIC-8 for meters, PLCs and building controls. The analog side covers the LM321A-TR single op amp, the LMV331TP-TR and TP1961-TR comparators, and the TP181A1-CR current-sense amplifier with a fixed 50 V/V gain in a six-pin SC70. 3PEAK ordering codes encode package and packing in the suffix, and several of its base names collide with other vendors' parts, so quote the complete code together with the 3PEAK brand.

Sourcing notes for 3PEAK parts. Always quote the complete manufacturer ordering code — package, temperature grade, speed or accuracy grade, and packing (reel, tube or tray) all change availability and price, and suffixes are where most mismatches happen. Check the lifecycle status on the manufacturer site before committing to a multi-year build; parts flagged not-recommended or obsolete need a last-time-buy plan or a verified alternate lined up early. With every offer, request traceability documents — date code, lot code and original packing — and confirm the inspection steps your supplier applies to high-risk lots.