# ALF20 and ALF40 Press Fit Capacitor Board Mounting

**URL:** <https://forum.digikey.com/t/alf20-and-alf40-press-fit-capacitor-board-mounting/11320>\
**Category:** Capacitors\
**Tags:** kemet, aluminum-electrolytic-capacitors, tech-tips\
**Created:** [January 18, 2021, 5:21pm UTC](https://forum.digikey.com/t/alf20-and-alf40-press-fit-capacitor-board-mounting/11320 "2021-01-18T17:21:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Patrick\_Glasser](https://avatars.discourse-cdn.com/v4/letter/p/8797f3/32.png) [@Patrick\_Glasser](https://forum.digikey.com/u/Patrick_Glasser)\
**Post date:** [January 18, 2021, 5:21pm UTC](https://forum.digikey.com/t/alf20-and-alf40-press-fit-capacitor-board-mounting/11320/1 "2021-01-18T17:21:21Z")

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The construction of Kemet’s press fit aluminum electrolytic capacitors are a good alternative to needing to solder these capacitors to your PCB while allowing for an easy exchange of components with only an insertion force of 100N needed per pin. Please see below for the image of the interconnects.

 ![image](https://global.discourse-cdn.com/digikey/original/2X/6/6a6150f17606f00ea8d2439f03da0bb3f35ed71b.png)

The PCB requirements can be found at [https://media.digikey.com/pdf/Data%20Sheets/Kemet%20PDFs/ALF20\_ALF40\_10-17-17.pdf](https://media.digikey.com/pdf/Data%20Sheets/Kemet%20PDFs/ALF20_ALF40_10-17-17.pdf)

ALF20 series can be found at: [https://www.digikey.com/en/products/filter/aluminum-electrolytic-capacitors/58?s=N4IgTCBcDaIIYBsBmYAMIC6BfIA](https://www.digikey.com/en/products/filter/aluminum-electrolytic-capacitors/58?s=N4IgTCBcDaIIYBsBmYAMIC6BfIA)

ALF40 series can be found at: [https://www.digikey.com/en/products/filter/aluminum-electrolytic-capacitors/58?s=N4IgTCBcDaIIYBsBmAWADCAugXyA](https://www.digikey.com/en/products/filter/aluminum-electrolytic-capacitors/58?s=N4IgTCBcDaIIYBsBmAWADCAugXyA)