LM7805 Guide: Pinout, Heat Limits and Buck Alternatives
Work out whether a 7805 can power your board: check its pins, input headroom, realistic heat budget and the changes required for a buck replacement.
Read articleComponent catalog
Shift Registers
Serial / parallel shift registers
01
Catalog visibility
Listings identify searchable components; current fulfilment and reservation are confirmed separately.
02
Stock verification
Availability, quantity, packaging and date code are checked per request.
03
Commercial confirmation
Price, MOQ, lead time and shipping terms are finalized in the quote.
Filters 0 groups
-
74HC595D74HC595D - Tech Public Shift Registers, SOP-16
Tech Public TECHPUBLICSOP-16In Stock 2485 units available$0.10 USD Final price in quote
Supply boundary
A searchable catalog is not an inventory promise.
Product records help identify a manufacturer part number and technical family. A listed part may be fulfilled from Chip-seek warehouse-held stock or a reviewed sourcing channel. Source, quantity, packaging, date code, MOQ, price and lead time are confirmed before an order is accepted.
From the desk
Recent Articles
Market signals, technical notes, and practical sourcing guidance for semiconductor procurement.
Incoming Inspection: Sampling, Tests, and Records
A receiving routine that holds up in an audit: ISO 2859-1 sampling, AQL by part class, cheap-to-expensive test order, and records someone else can reproduce.
Read article
USB 2.0 Pair Routing: Impedance, Skew, and Return Path
At 480 Mb/s a bit is 2.08 ns. 90 ohm impedance, 50 mil skew, and a continuous return path decide whether the link keeps high speed...
Read article
LM317 Guide: Pinout, Resistor Values and Heat Limits
Choose LM317 resistor values, identify the output-connected tab, check minimum load and calculate a realistic heat budget before approving a replacement.
Read article
Crystal Startup: Load Caps, Negative Resistance, Probes
An oscillator that starts on the bench and fails cold has a margin problem. Load capacitor math, the negative-resistance test, and the probe that stops the...
Read article
I2C Timing: Rise Time, Pull-Ups, and Probe Traps
Most I2C failures are rise time and capacitance, not protocol. The 30-70% measurement, the pull-up window, and the probe that changes the answer.
Read article
LM317 Heat: Dissipation, Heatsink Sizing, and the 3 V Rule
The LM317 needs 3 V of headroom and a heatsink sized by one equation. Worked numbers for 12 V to 5 V, the 5 V to...
Read article
Counterfeit and Remarked Components: A Buyer's Checklist
Most counterfeit parts are not clever fakes: they are re-dated, re-marked or re-reeled stock. Five checks a buyer can run before accepting, with the tests that...
Read article