LM358 Alternatives: Dual Op-Amp Cross-Reference
The dual op-amp in a million low-cost designs: why its input range is wider than its output range, and what breaks when you swap it.
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Chip-seek Blog
Technical knowledge, market intelligence, and practical guidance for semiconductor procurement.
AMS1117 Thermal Budget: Junction Temperature at 5 V and 12 V
The AMS1117 is rated 1 A, but at 12 V input the thermal limit arrives near 0.19 A. Here is the arithmetic, the derating curves, and the fix.
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Week 44 Category Watch: LDO Takes the Top Spot
Week 44 brought a broad cool-off: LDO overtook 32-bit MCU as the top category, while global spot inventory kept building to 7.32 billion units.
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Week 44 Brand Watch: TI Gains, MCU Brands Cool
Eight of nine tracked brands lost search volume last week. The one that gained did it on automotive LED drivers.
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Electronic Components Market Watch: Week 43
Week 43 component rankings show MCU search interest and sharp price and listed-inventory swings. Here's what buyers should verify before changing a BOM or purchase plan.
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Week 44 Supply Watch: Automotive LED Drivers Surge
Week 44 put automotive lighting, isolated interfaces and precision analog at the top of the search and price boards. What buyers should do next.
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Component RFQ Checklist: Compare Quotes Before You Buy
Make IC supplier quotes comparable before choosing a price. Align full MPNs, carrier formats, stock evidence, delivery milestones and commercial conditions.
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NE555 Alternatives: Bipolar vs CMOS Timers
The same eight pins, two very different chips inside: why a 555 replacement can double your standby current or halve your output drive.
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STM32F103CBT6 Alternatives: 128 KB Flash MCU Guide
The same die, the same 48-pin footprint, twice the flash — and the firmware work most people forget before they swap.
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TP4056 Alternatives: Li-Ion Charger Cross-Reference
The one-amp linear charger on millions of USB boards: what to match, what to add for safety, and when a linear charger is the wrong choice.
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ULN2003A Alternatives: Darlington Array Cross-Reference
Seven channels, built-in clamp diodes, and a pinout that has not changed in forty years — what to check before you substitute one.
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W25Q64 Alternatives: 64 Mbit NOR Cross-Reference
The 8 MB SPI flash behind a million embedded designs: package traps, firmware checks, and when 64 Mbit is still the right density.
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