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Texas Instruments CD74HC03E — DC-DC Power Modules
Texas Instruments

CD74HC03E 74HC Quad 2-Input NAND Gate, Open Drain, 14-DIP

MPNCD74HC03E
End of Life

Texas Instruments 74HC series CD74HC03E, quad 2-input NAND gate with open-drain outputs, 2V to 6V supply, 14-DIP (0.300", 7.62mm), through-hole mount, -55°C to 125°C.

$0.68Ref. price · indicative, final on quote
CD74HC03E datasheet
Packaging14-DIP (0.300", 7.62mm)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

CD74HC03E Technical Specifications
ParameterValue
Series74HC
Logic typeNAND Gate
Mounting typeThrough Hole
Voltage2V ~ 6V
Current - quiescent2 µA
Current - output high, low-, 5.2mA
Number of inputs2
Operating temperature-55°C ~ 125°C
PackageTube
FeaturesOpen Drain
Case14-DIP (0.300\", 7.62mm)
Number of circuits4
Input logic level - low0.5V ~ 1.8V
Input logic level - high1.5V ~ 4.2V
Max propagation delay @ v, max CL17ns @ 6V, 50pF

Product details

Package and mounting

The CD74HC03E: Quad 2-input NAND gate with open-drain outputs. Each gate sinks current on the low side; the high side requires an external pull-up. Supply range is 2V to 6V. Propagation delay is 17ns at 6V with a 50pF load. Temperature grade covers -55°C to 125°C, which puts it in the military/industrial bracket. If the board lives in an engine bay, a satellite, or a downhole tool, this gate handles the thermal swing.

Lifecycle and sourcing

The 74HC series is a mature logic family still in broad production, so this part remains a safe choice for both new designs and repair stock.

Frequently asked questions

Does CD74HC03E have open-drain outputs?

Yes, the CD74HC03E features open-drain outputs on all four NAND gates. That means each output can only sink current; an external pull-up resistor is required for the high state.

Can CD74HC03E replace a failed 74HC03?

Yes, the CD74HC03E is a standard 74HC03 quad NAND gate with open-drain outputs. It is a direct functional replacement for any 74HC03 in a 14-pin DIP package, provided the supply voltage and temperature range match the application.

What is the difference between CD74HC03E and SN74HC03N?

Both are 74HC-series quad 2-input NAND gates with open-drain outputs in a 14-pin DIP package. The CD74HC03E is from Texas Instruments; the SN74HC03N is also a TI part. Electrically they are identical — same logic function, same supply range, same propagation delay. The difference is the manufacturer's ordering code and possibly the date code or factory origin. For a repair or a BOM line, either works as a drop-in.