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
Brand: ROCHESTER ELECTRONICS
Compare searchable component records, narrow the catalog by published technical fields, and request supplier-verified availability for your exact requirement.
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
-
YW80C196KC20YW80C196KC20 - Rochester Electronics Embedded Processor, QFP-80
Rochester Electronics ROCHESTER ELECTRONICSQFP-80In Stock 63 units available$20.43 USD Final price in quote -
X9317WS8T1X9317WS8T1 - Rochester Electronics
Rochester Electronics ROCHESTER ELECTRONICSSOIC-8In Stock 5000 units available$6.24 USD Final price in quote -
UPD5716GR-E1-AUPD5716GR-E1-A - Rochester Electronics, TSSOP-16
Rochester Electronics ROCHESTER ELECTRONICSTSSOP-16In Stock 6000 units available$1.81 USD Final price in quote -
XR16C854IQXR16C854IQ - Rochester Electronics Interface IC, QFP-100-14X20
Rochester Electronics ROCHESTER ELECTRONICSQFP-100-14X20In Stock 28 units available$12.04 USD Final price in quote -
TSC2046IZQCR-90TSC2046IZQCR-90 - Rochester Electronics Interface IC, PBGA48
Rochester Electronics ROCHESTER ELECTRONICSPBGA48In Stock 87500 units available$2.36 USD Final price in quote -
X9015US8X9015US8 - Rochester Electronics
Rochester Electronics ROCHESTER ELECTRONICSSOIC-8In Stock 1090 units available$1.89 USD Final price in quote -
W159HW159H - Rochester Electronics, SSOP-56
Rochester Electronics ROCHESTER ELECTRONICSSSOP-56In Stock 402 units available$2.22 USD Final price in quote -
X9279TV14-2.7X9279TV14-2.7 - Rochester Electronics, TSSOP-14
Rochester Electronics ROCHESTER ELECTRONICSTSSOP-14In Stock 313 units available$2.84 USD Final price in quote -
W163-15GTW163-15GT - Rochester Electronics Logic IC, PDIP-40
Rochester Electronics ROCHESTER ELECTRONICSPDIP-40In Stock 4785 units available$1.32 USD Final price in quote -
TVP7000PZPRTVP7000PZPR - Rochester Electronics, PQFP100
Rochester Electronics ROCHESTER ELECTRONICSPQFP100In Stock 7000 units available$5.19 USD Final price in quote -
TRF3701IRHCRTRF3701IRHCR - Rochester Electronics, VQFN-16
Rochester Electronics ROCHESTER ELECTRONICSVQFN-16In Stock 118398 units available$10.24 USD Final price in quote -
TMS320C6472EZTZ7TMS320C6472EZTZ7 - Rochester Electronics DSP, 737-FCBGA (24x24)
Rochester Electronics ROCHESTER ELECTRONICS737-FCBGA (24x24)In Stock 1 units available$372.39 USD Final price in quote -
VECANA01VECANA01 - Rochester Electronics, PLCC-24-23X24
Rochester Electronics ROCHESTER ELECTRONICSPLCC-24-23X24In Stock 2977 units available$49.21 USD Final price in quote -
TMS320F280260PTSTMS320F280260PTS - Rochester Electronics Embedded Processor, 48LQFP
Rochester Electronics ROCHESTER ELECTRONICS48LQFPIn Stock 3500 units available$3.23 USD Final price in quote -
TRF2436IRTBTTRF2436IRTBT - Rochester Electronics, VQFN-40-6X6
Rochester Electronics ROCHESTER ELECTRONICSVQFN-40-6X6In Stock 8250 units available$21.46 USD Final price in quote -
UPG2185T6R-E2-AUPG2185T6R-E2-A - Rochester Electronics, SPDT
Rochester Electronics ROCHESTER ELECTRONICSSPDTIn Stock 129500 units available$0.70 USD Final price in quote -
X9460KV14IZX9460KV14IZ - Rochester Electronics
Rochester Electronics ROCHESTER ELECTRONICSTSSOP-14In Stock 129 units available$4.38 USD Final price in quote -
TSC2101IRGZRTSC2101IRGZR - Rochester Electronics
Rochester Electronics ROCHESTER ELECTRONICSVQFN-48In Stock 107500 units available$5.95 USD Final price in quote -
TS3V330DGVRTS3V330DGVR - Rochester Electronics Interface IC, TVSOP-16
Rochester Electronics ROCHESTER ELECTRONICSTVSOP-16In Stock 120000 units available$0.61 USD Final price in quote -
TSC2020IRTVTTSC2020IRTVT - Rochester Electronics Interface IC
Rochester Electronics ROCHESTER ELECTRONICSWQFN-32In Stock 6000 units available$5.03 USD Final price in quote -
TMS320C50PQ57TMS320C50PQ57 - Rochester Electronics DSP, 132-BQFP (24.54x24.54)
Rochester Electronics ROCHESTER ELECTRONICS132-BQFP (24.54x24.54)In Stock 6531 units available$71.94 USD Final price in quote -
TMS320C6748BZWTD4ETMS320C6748BZWTD4E - Rochester Electronics DSP, NFBGA-361
Rochester Electronics ROCHESTER ELECTRONICSNFBGA-361In Stock 32393 units available$36.78 USD Final price in quote -
TMC2302AH5CTMC2302AH5C - Rochester Electronics Embedded Processor, SOIC-8
Rochester Electronics ROCHESTER ELECTRONICSSOIC-8In Stock 2893 units available$91.11 USD Final price in quote -
TLC354IDRTLC354IDR - Rochester Electronics
Rochester Electronics ROCHESTER ELECTRONICSSOIC-14In Stock 15014 units available$1.19 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