# Comparison - Hirose DF40C vs DF40HC

**URL:** <https://forum.digikey.com/t/comparison-hirose-df40c-vs-df40hc/125>\
**Category:** Rectangular Connectors\
**Tags:** hirose-electric-co-ltd, arrays-edge-type-mezzanine-board-to-board, part-comparison\
**Created:** [March 28, 2017, 7:02pm UTC](https://forum.digikey.com/t/comparison-hirose-df40c-vs-df40hc/125 "2017-03-28T19:02:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tim\_2458](https://avatars.discourse-cdn.com/v4/letter/t/45deac/32.png) [@Tim\_2458](https://forum.digikey.com/u/Tim_2458)\
**Post date:** [March 28, 2017, 7:02pm UTC](https://forum.digikey.com/t/comparison-hirose-df40c-vs-df40hc/125/1 "2017-03-28T19:02:07Z")

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What is the difference between the [DF40C](https://www.digikey.com/en/products/filter/rectangular-connectors/arrays-edge-type-mezzanine-board-to-board/308?s=N4IgTCBcDaIAQBEBiAWADAYRAXQL5A) series and [DF40HC](https://www.digikey.com/en/products/filter/rectangular-connectors/arrays-edge-type-mezzanine-board-to-board/308?s=N4IgTCBcDaIAQBEBiAWADACQMIgLoF8g) series from [Hirose](https://www.digikey.com/en/supplier-centers/hirose)?

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**Author:** ![Tim\_2458](https://avatars.discourse-cdn.com/v4/letter/t/45deac/32.png) [@Tim\_2458](https://forum.digikey.com/u/Tim_2458)\
**Post date:** [March 28, 2017, 7:21pm UTC](https://forum.digikey.com/t/comparison-hirose-df40c-vs-df40hc/125/2 "2017-03-28T19:21:27Z")

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The DF40C was the original product offering and only offered stacking heights of 1.5mm-2mm. The DF40HC was added to the product line later to offer more stack height choices and applies only to the female receptacles.The addition of the DF40HC receptacles added stack height options of 2.5mm - 4mm to the original 1.5mm-2mm options.