CD74HC4051MDREP Alternatives and Equivalents
CD74HC4051 analog multiplexer · Texas Instruments · verified against manufacturer datasheet parameters
CD74HC4051MDREP — a CD74HC4051 analog multiplexer part from Texas Instruments — is one of the most-searched part numbers in its category. This page compares its verified pin-compatible variants and closest family alternates, using manufacturer datasheet parameters, and shows what is actually available from stock.
The table below distinguishes true drop-in replacements (same package and pinout) from family alternates that need design review. Specs marked "—" vary by suffix or were not published in the source data — confirm on the datasheet before committing.
This cross-reference is part of our guide to obsolete electronic components — These cross-references cover discontinued, EOL and allocation-constrained parts — the full risk framework is in our pillar guide.
View CD74HC4051MDREP stock & pricing
Is the CD74HC4051MDREP discontinued?
CD74HC4051MDREP is part of the HC4051 8-channel analog multiplexer/demultiplexer line — a mature, high-volume logic family produced by multiple manufacturers. Suffixes encode package and packing; the silicon function is standardized across vendors.
Pin-to-pin compatible alternatives
"Drop-in" means same package and pinout; other rows are family alternates that need design review.
| Part Number | Compatibility | Package | Number of Circuits | On-State Resistance (Max) | Voltage - Supply, Single (V+) | Operating Temperature | Package / Case |
|---|---|---|---|---|---|---|---|
| CD74HC4051MDREP (target) | — | PDIP | 1 | 130Ohm | 2V ~ 6V | -55°C ~ 125°C (TA) | 16-SOIC (0.154", 3.90mm Width) |
| CD74HC4051NS | Family alternate — review design | — | — | — | — | — | — |
CD74HC4051MDREP vs CD74HC4051NS: what actually differs
Within the compared parameter set these codes match on the published specs; the differences live in suffix details — packing, temperature grade or flash/density options. Send both codes if you want us to confirm the delta on your specific requirement.
Migration checklist: re-validate before you swap
- Package suffix (PW = TSSOP, NS = SOP, N = PDIP) must match your footprint
- HC logic family voltage range is 2–6 V — do not substitute HCT without checking thresholds
- On-resistance varies with supply voltage — verify against your signal levels
- Cross-vendor 74HC4051 parts are functional equivalents, but analog behavior (Ron flatness, leakage) differs slightly
- The -EP/-Q1 suffixes indicate enhanced/automotive grades — match if your program requires them
Where to source CD74HC4051MDREP and its alternates
We stock CD74HC4051MDREP and its family variants in Hong Kong with date codes stated on every quote. Each lot passes marking verification; X-ray and electrical testing through accredited partner labs are available on request, with the report delivered before final payment.
Pricing follows the live spot market, so quotes carry a stated validity window — typically 24 to 48 hours on volatile lines. Send your quantity and required date code and the desk replies within 2 working hours.
CD74HC4051MDREP can also ship consolidated with the rest of your BOM — one shipment, one invoice, one inspection standard. For recurring demand we reserve stock and schedule multi-lot releases, which smooths both price exposure and availability risk across your build calendar.
Guides: obsolete component sourcing · counterfeit detection methods
FAQ
Are 74HC4051 parts from different vendors interchangeable?
Functionally yes — pinout and logic are standardized. Analog parameters (on-resistance flatness, leakage) differ slightly between vendors.
Is CD74HC4051MDREP discontinued?
No — HC4051 remains in high-volume production by multiple manufacturers.
What do PW/NSR/MDREP suffixes mean?
Package and packing codes (TSSOP/SOP/PDIP, tube vs reel). The die function is identical.
HC vs HCT — does it matter?
Yes — HCT has TTL-compatible input thresholds and a narrower supply range. Match the family your design specifies.
Do you stock through-hole versions?
Yes — PDIP variants are stocked for through-hole production and repair.
What is the MOQ?
One piece, cut tape.
Can I see photos or test reports before ordering?
Yes — label and top-marking photos of the actual lot are standard, and X-ray or lab reports can be arranged before payment on first orders. Tell the desk what your incoming inspection requires.
Do you support scheduled production deliveries?
Yes. For recurring demand we reserve stock of CD74HC4051MDREP or its alternates and release shipments against your build schedule — one agreement instead of repeated spot buys.
Start an RFQ — our Hong Kong desk replies within 2 working hours.