# 25C1844 Alternatives

**URL:** <https://forum.digikey.com/t/25c1844-alternatives/68526>\
**Category:** Discrete Semiconductor Products\
**Created:** [May 3, 2026, 4:03am UTC](https://forum.digikey.com/t/25c1844-alternatives/68526 "2026-05-03T04:03:47Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![chris\_groom](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/chris_groom/32/54044_2.png) [@chris\_groom](https://forum.digikey.com/u/chris_groom)\
**Post date:** [May 3, 2026, 4:03am UTC](https://forum.digikey.com/t/25c1844-alternatives/68526/1 "2026-05-03T04:03:47Z")

</div>

> this post is for informational purposes only. Please review the manufacturer datasheet before purchase to verify that any recommended parts are appropriate for your application.

25C1844 is an NPN transistor produced by NEC, from my findings the best alternate in our system is [KSP55TACT-ND](https://www.digikey.com/products/en?keywords=KSP55TACT-ND).

For the complimentary PNP transistor, see this previous post: [2SA991 Alternate](https://forum.digikey.com/t/2sa991-alternate/68525)